CL 86532010 001.ai 160298 ServiceManual - …diagramasde.com/diagramas/otros2/Philips+L7.3A+AA.pdfServiceManual Published by LV 9864 ... 11 List of abbreviations 46 ... Picture In

1

Colour Television Chassis

L7.3AAA

CL 86532010_001.ai160298

ServiceManual
Content1 Technical specifications 22 Connection facilities, location of panels 33 Safety instructions, Warnings 4
and Notes4 Mechanical instructions 65 Repair facilities 7

Software adjustments and Hotel mode 126 Block diagram, 13

Survey of testpoints 14Diagram supply voltages survey

7 Electrical Diagrams and print lay-outsDiagram PWB

Main PWB layout 16Power supply diagram A1 17 16Main PWB layout 18Line drive diagram A2 19 18Sync-frame & vertical drive diagram A3 20 18Video Processing diagram A4 21 18Control diagram A5 22 18Sound processing diagram A6 23 18Sound amplifier diagram A7 24 18BTSC decoding diagram A8 25 18CRT PWB/ Audio sound PWB 26CRT module diagram B 27 26Nicam sound panel diagram C 28 26

8 Electrical adjustments 299 Circuit Descriptions new circuits 3110 Directions for use (limited) 3811 List of abbreviations 4612 Spareparts list 47

Published by LV 9864 TV Service DepartmentPrinted in The NetherlandsCopyright reserved 1998 Philips Consumer Electronics B.V. Eindhoven, The Netherlands. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwisewithout the prior permision of Philips.Subject to modification5 4822 727 21566

Published by LV 9864 TV Service Department Printed in The Netherlands Subject to modification 5 4822 727 21566

1 Technical specifications2 L7.3A1 Technical specificationsMains Voltage: : 150 - 276 Volt

: 90 - 276 VoltMains frequency : 50 Hz

: 60 HzPower Consumption in stand-by : < 10 WattPower Consumption normal mode : 25 : 75Watt +/- 10%

: 29 : 90 Watt +/- 10%Chassis mains isolated : YesAerial input impedance TV : 75 Ohm - coaxPicture tube range : 25 and 29EHT voltage for 25 : 27 KVoltEHT voltage for 29 : 30 KVoltMax EHT power : Linitted at 33 WattSound output power : 2 X 3 Watt

: 2 X 5 WattPicture S/N at 70uVolts : > 46 dB unweighted

: > 53 dB weigted

2 Connection facilities 3L7.3A2 Connection facilities

2.1 Cinch

- Video 1Vpp/75 q- Audio L(0.5Vrms 10k) q- Audio R(0.5Vrms 10k) q

2.2 Head phone

- (8 - 600 / 4mW) ot

2.3 Location of panels

VIDEO 2IN

ANTENNAIN

VIDEO 1IN OUT

VIDEO

AUDIO

R

L

AUDIO

VIDEO

R

L

CL 86532010_003.ai160298

Red

IRChannelVolume

+ +--CL 86532010_004.ai

160298

A1C

A2

NICAM PANELPOWER SUPPLY

LINE DRIVE

SYNC / FRAMEVERTICAL DRIVE

VIDEO PROCESSING

(BIMOS IC)CONTROL

A3

SOUND AMPLIFIER

BTSC DECODING

SOUND PROC.+ SOUND INTERFACE

A4

A5

A6

A7

A8

CRT PANEL B

MAIN

CL 86532010_005.ai160298

3 Safety instructions, Maintenance instruction,4 L7.3A
3 Safety instructions, Maintenance instruction, Warnings and Notes3.1 Safety instructions for repairs
Figure 3-1

1. Safety regulations require that during a repair: the set should be connected to the mains via an

isolating transformer; safety components, indicated by the symbol (see fig.

3.1), should be replaced by components identical tothe original ones;

when replacing the CRT, safety goggles must be worn.

2. Safety regulations require that after a repair the set mustbe returned in its original condition. In particular attentionshould be paid to the following points. As a strict precaution, we advise you to resolder the

solder joints through which the horizontal deflectioncurrent is flowing, in particular: all pins of the line output transformer (LOT); fly-back capacitor(s); S-correction capacitor(s); line output transistor; pins of the connector with wires to the deflection

coil; other components through which the deflection

current flows.

Note: This resoldering is advised to prevent badconnections due to metal fatigue in solder joints and istherefore only necessary for television sets older than2 years. The wire trees and EHT cable should berouted correctly and fixed with the mounted cableclamps.

The insulation of the mains lead should be checked forexternal damage.

The mains lead strain relief should be checked for itsfunction in order to avoid touching the CRT, hotcomponents or heat sinks.

The electrical DC resistance between the mains plugand the secondary side should be checked (only forsets which have a mains isolated power supply). Thischeck can be done as follows: unplug the mains cord and connect a wire between

the two pins of the mains plug; set the mains switch to the on position (keep the

mains cord unplugged!); measure the resistance value between the pins of

the mains plug and the metal shielding of the tuneror the aerial connection on the set. The readingshould be between 4.5 MW and 12 MW;

switch off the TV and remove the wire between thetwo pins of the mains plug.

The cabinet should be checked for defects to avoidtouching of any inner parts by the customer.

3.2 Maintenance instruction

It is recommended to have a maintenance inspection carriedout by a qualified service employee. The interval depends onthe usage conditions:

When the set is used under normal circumstances, forexample in a living room, the recommended interval is 3 to5 years.

When the set is used in circumstances with higher dust,grease or moisture levels, for example in a kitchen, therecommended interval is 1 year.

The maintenance inspection contains the following actions: Execute the above mentioned 'general repair

instruction'. Clean the power supply and deflection circuitry on the

chassis. Clean the picture tube panel and the neck of the picture

tube.

3.3 Warnings

1. ESDAll ICs and many other semiconductors are susceptible toelectrostatic discharges (ESD). Careless handling duringrepair can reduce life drastically. When repairing, makesure that you are connected with the same potential as themass of the set by a wristband with resistance. Keepcomponents and tools also at this same potential. Available ESD protection equipment: anti-static table mat (large 1200x650x1.25mm) 4822

466 10953 anti-static table mat (small 600x650x1.25mm) 4822

466 10958 anti-static wristband 4822 395 10223 connection box (3 press stud connections, 1 M ohm)

4822 320 11307 extension cable (2 m, 2 M ohm; to connect wristband

to connection box) 4822 320 11305 connecting cable (3 m, 2 M ohm; to connect table mat

to connection box) 4822 320 11306 earth cable (1 M ohm; to connect any product to mat or

connection box) 4822 320 11308 complete kit ESD3 (combining all 6 prior products -

small table mat) 4822 310 10671 wristband tester 4822 344 13999

2. In order to prevent damage to ICs and transistors, all high-voltage flashovers must be avoided. In order to preventdamage to the picture tube, the method shown in Fig. 3.2should be used to discharge the picture tube. Use a high-voltage probe and a multimeter (position DC-V). Dischargeuntil the meter reading is 0V (after approx. 30s).

3. Together with the deflection unit and any multipole unit, theflat square picture tubes used from an integrated unit. Thedeflection and the multipole units are set optimally at thefactory. Adjustment of this unit during repair is therefore notrecommended.

4. Be careful during measurements in the high-voltagesection and on the picture tube.

5. Never replace modules or other components while the unitis switched on.

6. When making settings, use plastic rather than metal tools.This will prevent any short circuits and the danger of acircuit becoming unstable.

7. Wear safety goggles during replacement of the picture tube

3.4 Notes

1. The direct voltages and oscillograms should be measuredwith regard to the tuner earth , or hot earth as this is called(see fig. 3.3)

2. The direct voltages and oscillograms shown in thediagrams are indicative and should be measured in theService Default Mode (see chapter 8) with a colour barsignal and stereo sound (L:3 kHz, R:1 kHz unless statedotherwise) and picture carrier at 475.25 MHz.

3 Safety instructions, Maintenance instruction, 5L7.3A

3. Where necessary, the oscillograms and direct voltages aremeasured with and without aerial signal. Voltages in thepower supply section are measured both for normaloperation and in standby . These values are indicated bymeans of the appropriate symbols (see fig. 3.3).

4. The picture tube PWB has printed spark gaps. Each sparkgap is connected between an electrode of the picture tubeand the Aquadag coating.

5. The semiconductors indicated in the circuit diagram and inthe parts lists are completely interchangeable per positionwith the semiconductors in the unit, irrespective of the typeindication on these semiconductors.

Figure 3-2

Figure 3-3

V

CL 26532098/042140792

tuner earth tuner aarde la masse du tuner Tuner-Erde

massa del tuner tierra del sintonizador

with aerial signal met antenne signaal

avec signal d'antenne mit Antennensignal

con segnale d'antenna con la seal de antena

normal condition normaal bedrijf fonctionnement normal normaler Betrieb

funzionamento normale funcionamiento normal

hot earth hete aarde la terre directe heien Erde

massa calda tierra caliente

without aerial signal zonder antenne signaal

sans signal d'antenne.ohne Antennensignal

senza segnale d'antenna sin la seal de antena

stand by stand by position de veille in Bereitschaft

modo di attesa posicin de espera

4 Mechanical instructions6 L7.3A4 Mechanical instructionsFor the service position of the main carrier see figure 4.1:

The main carrier can be removed by releasing the 2 carrierblocking lips (1) and pulling the carrier panel backwards.

Figure 4-1

A

2

1

11

B CL 86532010_002.ai160298

5 Faultfinding tree & Repair facilities 7L7.3A
5 Faultfinding tree & Repair facilities
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IC

7520

Wideband adjustment

SPECT -> Spectral adjustment

NOTE: ALL VALUES ARE RECOMMENDED NOMINALVALUES.

8.3.2 2CS/NICAM Sound adjustment (software adjustment)

Set generator (e.g. PM5418) BLACK(without video) pattern,set audio to stereo mode, carrier "ON" , set RF frequency PAL189.25MHz, NTSC 55.25MHz with signal amplitude - 1mv andconnect to aerial input. Enter the SAM mode by using theDealer Service Tool or short-circuit service pins M28 and M29on PCB and switch power "ON". The menu is displayedwhenever SAM mode is entered.

Enter into AUDIO menu and select item according to factorysetting. Check the sound quality by the above generatorsetting. The factory settings for 2CS/NICAM are :

NOTE: ALL VALUES ARE RECOMMENDED NOMINALVALUES.

NORMAL 10500K R = 37 G = 37 B = 37

DELTACOOL

14000K R = 0 G = 254 B = 249

DELTAWARM

8200K R = 0 G = 1 B = 3

AUDIO

AUTO >

ST-NT 7

SAP-NT 7

LA 7

WIDEB 19

SPECT 19

AUDIO

A-FM 80

AT 8

STEREO 143

DUAL 113

9 Circuit description new circuits 31L7.3A
9 Circuit description new circuitsPower supply (diagram A1)
9.1 Introduction

9.1.1 General

The switched mode power supply (SMPS) is mains isolated.The control IC7520 (MC44603AP) gives pulses for driving FET7518 with duty cycle control at fixed frequency of nominal 40kHz in normal operation. In stand-by, slow-start and overloadsituation the SMPS runs at other frequencies than these 40kHz.

Basic characteristics of SMPS :

Mains Isolated flyback Converter type Input range : 90 - 276 Volts AC ( multi voltage ) or 150 - 276

Volts AC ( single voltage ). Secondary Sensing by Opto Coupler IC7520 is Featured with a Slow-Start circuitry Over-and undervoltage Protection Circuit of the secondary

supply voltages. In case the load decreases under acertain threshold level the SMPS will switch into stand-by-mode (in stand-by SMPS is in the so called "reducedfrequency mode"; this is nominal about 20 kHz).

The (VBATT (+140 Volts for A/P and +130 Volts for LATAMoutput gives a stabilized (VBATT for 25" and 29" tubes innormal operation and approx. 140 Volts DC for A/P and 130Volts for LATAM in stand-by mode. IC7541 (=TDA8139) havinga stable regulator for +5 Volts and +8 Volts supply and also abuilt-in protection circuit for +5 Volts and +8 Volts supply ispresent. If pin 4 is low in the standby mode, the IC disables thesupply output voltage of (8Volts, so IC7225 (TDA8374C) lineoutput stage will be shut "down". If no 8 Volts supply is presenttransistor 7542 will switch on, this will cut off the +VBATT; italso performs a fast CRT discharge. If the power is switchedoff, pin 6 of IC7541 will be low and the protection circuit startsto shut down the +5 Volts and +8 Volts.

9.1.2 Output voltages

Power output secondary output voltages:

14 Volts for the audio amplifier 13 Volts for the audio processing 5 Volts for the control part (is also available in standby/

reset) 8 Volts for the video processing and Nicam 140 Volts for A/P and (130 Volts for LATAM for the line

output stage and the tuning system

9.1.3 The switching periods of TS7518

The duty cycle of the power supply depends on T-on of FETTS7518 and this is controlled by pin 3 of IC7520. This ICdetects the variations of the (VBATT via sensing-winding 8-9 atthe primary side of T5545. The switching period of TS7518 canbe divided into three main phases: Duty cycle T-on, T-off andT-dead

During T-on, FET 7518 will switch on and conducts, so theenergy that is extracted from the mains is stored into theprimary winding 2-5 of transformer T5545 with a linearincreasing primary current. The slope depends on thevoltage across C2508. Via T-on regulation by pin 3 ofIC7520 the duty cycle of the SMPS and so the (VBATT iscontrolled.

During T-on FET 7518 will switch off and does not conduct,so all energy "inside" the transformer is supplied to the loadvia secondary windings of T5545 and the secondary

diodes (D6550, D6560 and D6570,D6590). The currentthrough the secondary side of the transformer decreaseswith a linear slope of T5545.

During T-dead FET 7518 does not conduct and no energyis extracted from the mains of supplied side, this givesspace for T-on and T-off regulation.

9.2 Primary side

9.2.1 Mains input and degaussing

Mains voltage: this voltage is filtered by L5500 and 5502,rectified by a diode bridge rectifier 6505 and smoothed byC2508 to the DC input voltage for the SMPS at pin 5 ofT5545 (e.g. 300V DC for 220V AC mains).

Multi voltage: Only small adaptations of some componentvalues are needed to achieve this.

Degaussing : R3504 is a dual PTC (2PTC's in onehousing). When switching "on" the set, the PTC is cold andlow-ohmic. This would give very high degaussing current.After degaussing the PTC will be heated up and becomehigh-ohmic; during normal operation the degaussingcurrent is very low.

9.2.2 Start up and take over

Start-up : Via the start-up circuitry 3510, 3530 and 3529 thevoltage coming from 220V AC mains is used to start-upIC7520 via the supply pin 1. As long as pin 1 has notreached 14.5 Volts, IC7520 does not start up and onlysinks 0.3mA. If Vpin 1 reaches the 14.5 Volts, IC7520 willstart (FET 7518 will conduct) and pin 1 sinks a typicalsupply current of about 17 mA. This supply current cannotbe delivered by the start-up circuitry, so a take-over circuitmust be present. If no take-over will take place the voltageon pin 1 will decrease and IC7520 will switch off; in thatcase the restart procedure will start again.

Take over of IC7520: During start-up a voltage acrosswinding 8 - 9 is built up. At the moment the voltage acrosswinding 8 - 9 reaches approx. (14.5 Volts, D6540 startconducting and takes over the supply voltage Vpin 1 ofIC7520 (take over current is approx. 17mA).

Note: This power supply is a SMPS (= Switched Mode PowerSupply) and not a SOPS (= Self Oscillating Power Supply).

9.3 Control circuitry; see page 37 for blockdiagram.

9.3.1 IC7520 control mechanisms

IC7520 controls the T-on time of FET 7518 in all threeoperation modes:

"Secondary-output-sensing" controls the secondary outputvoltages via the feedback voltage pin 14.

"1-prim current sensing" controls both the secondaryoutput voltages and the maximum 1-prim via the currentsense voltage pin 7.

"Demagnetization control" prevents the transformer T5545from going into saturation via the so called "DEMAG"function at pin 8; this will cause slow-start operation.

9.3.2 Secondary output voltage's feedback (pin 14 of IC7520)

Voltage feedback for T-ON control : Regulation of the SMPS isvia pin 14. Winding 2 -5 has the same polarity as winding 16 -18, so variations of the +VBATT can be sensed and feed-backto pin 14. The control voltage of winding 2 -5 during off periodof TS7518 the Opto-coupler 7581 conducted rectified byD6540, smoothed by 2540 and coupled via 7581 and

9 Circuit description new circuits32 L7.3A

adjustable by 3572. For the information at pin 14 of IC7520controls each portion of energy transferred to the secondaryside such that the output voltages remain nearly independentof load variations.

9.3.3 I-prim sensing (pin 7 of IC7520)

The current sense voltage at pin 7 is a measure for the I-primthrough FET7518. The I-prim is converted into a voltage byR3518. The current sense voltage at pin 7 is used to controlboth the secondary output voltages and the maximum Iprim(see peak current limiting).

9.3.4 Demagnetization control (via pin 8 0f IC7520)

Winding 8 - 9 has the same polarity as the secondary windingsthat are supplying the load. As a result the voltage across thiswinding is negative during T-on, positive during T-off andoscillating during T-dead. The so called demagnetization(block " DEMAG " in IC7520) function at pin 8 of IC7520 isused for blocking the output pin 3 during the time that there isstill energy in the transformer (1sec not zero). This is realizedby delaying the T-on until the demagnetization is completelyfinished. In this way the currents and voltages at the moment ofswitching "on" the FET are controlled.

9.3.5 IC7520 control

The error amplifier (block A ) compares the feedback voltage atpin 14 with an internal reference voltage of 2V5. The outputvoltage V error-out of this error amplifier is fed to anothercomparator (block B). This comparator also compares the Verror-out and the current sense voltage at pin 7. When thecurrent sense voltage at pin 7 becomes higher than the output-voltage of the error amplifier V error-out, the comparator Bgives a spike (the output of comparator B is the so calledcurrent sensing output-voltage Vcs out).

9.3.6 Flip flop

Flip flop (in block C) drives the output pin 3 via a buffer amplifier(block D). The flip flop is set by the positive edge of the outputof the oscillator, V osc and reset by the spike V cs out. As aresult the pulse at pin 3 becomes "high" --> T-on starts and bythe positive edge of Vosc from the internal oscillator and "low"--> T-on stops by the spike of Vcs out . The T-on start will bedelayed in case the transformer is not yet demagnetized; seethe slow-start procedures.

9.3.7 Stable load and increasing / decreasing load

In case of a stable load, the feedback voltage at pin 14 and soalso the maximum current sense voltage at pin 7 remains thesame; as a result the T-on and the duty cycle will remain thesame. In case of an increasing load, the secondary outputvoltage will decrease. The voltage on pin 14 would also like todecrease which causes a V error -out to increase. As a resultcomparator B will give the pulse later; pin 3 will be "high" for alonger period (longer T-on so the duty cycle increase) and sothe secondary output voltages will be increased (corrected).This will give a new balance of feedback voltage at pin 14 andthe internal 2V5 reference voltage, at a new and larger dutycycle. As a result of the longer T-on, the maximum I-primincreases, so more energy will be stored in the transformer. Inthis way more energy will be supplied to the load. In case of adecreasing load, the secondary output voltage increases. Thevoltage on pin 14 would like to increase which causes V error-out to decrease. As a result comparator B will give the pulseearlier, Vpin 3 will be "high" for a shorter period (shorter T-onso the duty cycle decrease) and so the secondary outputvoltages will be decreased (corrected). This will give a new

balance off feedback voltage Vpin 14 and the internal 2V5reference voltage, at a new smaller duty cycle. As a result ofthe shorter T-on, the maximum I-prim decreases, so lessenergy can be stored in the transformer. In this way lessenergy will be supplied to the load. In case the demagnetizationof the transformer is not yet finished, the positive edge from theoscillator, which will start a new cycle, will be overruled viabuffer block D as being the starting point of T-on will be delayedand frequency of the SMPS will go down. This procedure isused during start-up.

9.3.8 Peak current limiting

Peak current limiting is realized by an internal clamp at pin 7.This can never exeeds 1V DC and so the maximum value of I-prim, maximum current through FET 7518, is determined. Incase load needs more than the maximum power, by then the I-prim is already at his maximum level so the SMPS will go inoverload protection (see also foldback principle explained atoverload protection).

9.3.9 Cycle-by-cycle control

The T-on control is regulated on a cycle-by-cycle basis seeblock C in IC7520. This means that in every cycle the T-on isdetermined again. By doing so the secondary voltages control,peak current limitation and all protections is very accurate andfast.

9.3.10 Slow-start

As soon as Vpin 1 > 14.5 Volts DC the SMPS will start-up. Thiswill be done by a slow-start procedure where both thefrequency and the duty cycle will be built up. The followingthree phenomena's will take place during start-up:

The frequency will slowly increase to the nominalfrequency of 40 kHz for normal operation and 20 kHz forstandby). This is realized via the demagnetization functionat pin 8; via this "DEMAG" function, FET 7518 will onlyconduct and T-on will become "high", when T5545 is totallydemagnetized.

The voltage at pin 5 determines the foldback point. Asduring start-up this pin 5 is gradually built-up, the foldbackpoint will also gradually increase, see foldback principleexplained at overload protection.

The duty cycle will slowly increase beginning with theabsolute lowest possible duty cycle. The maximum dutycycle is determined by C2530 at pin 11 of IC7520, asC2530 is unchanged at start-up.

9.3.11 Standby mode

In standby mode the load will get under a certain thresholdlevel, decrease; see description of standby on the secondaryside. The SMPS will determine this threshold level and switchto the so called "reduced frequency mode" at about 20 kHz; thisminimal load threshold level is determined by R3532 at pin 12.In the L7.3 chassis the SMPS does not have a burst mode instandby but only a reduced frequency mode of about 20 kHz.In normal operation mode the internal oscillator is about 40kHz. This frequency is controlled by C2531 at pin 10 of IC7520and by R3537 at pin 16 of IC7520. In standby mode the internaloscillator is about 20 kHz.; this frequency is controlled byR3536 at pin 15 of IC7520.

9.3.12 FET 7518 gate regulation

D6514 prevents pin 3 of IC7520 of becoming negative becausethis will destroy the IC due to stray inductance in the gate part.


The safety resistor R3525 limits the drive current to the gate ofFET 7518. In a stable situation Vpin 14 is typical 2V4.

9.3.13 Typical values for the L7.3 chassis

9.4 Protections

9.4.1 Over voltage protection of the secondary voltages

After start-up the supply voltage pin 1 will be take over bypositive winding 8 - 9 and after start up pin 1 is the measuringpoint for the secondary output voltage. After start-up via aninternal switch pin 1 is internally tapped (voltage divider) to avoltage which can be measured at pin 6; pin 6 is also ameasuring point for the secondary output voltages. If thevoltage at pin 6 > 2.5 Volts, the logic in IC 7520 will shut downthe output pin 3. This 2.5 Volts threshold at pin 6 is equivalentto 16 Volts DC which is equivalent to a voltage at the supplyvoltage (V BATT of approx. 108 Volts DC in normal operationand 130 Volts DC in standby. After switching "off", the IC startsup again because of over voltage protection; see slow-start.

REMARK: In case an overvoltage situation is sensed at thesecondary output voltages, the SMPS will go in protection; incase the overvoltage situation remains present the SMPS willstart slow, etc.; this is a very good audible hick-up mode.

9.4.2 Under voltage protection of the secondary voltages

If the supply voltage at pin 1 < 9 Volts DC the output pulse atpin 3 will be shut down.

Note: The DC voltage at pin 1 is equivalent to a voltage at VBATT of approx. 70V DC in normal operation and the voltageat pin 1 of 7.5 Volts is equivalent to a voltage at (V BATT ofapprox. 55V DC in normal operation and 65V DC in standby.In case an over voltage situation is sensed at the secondaryoutput voltages, the SMPS will first switch "off" the pulses andlater the complete IC 7520 will be switched "off". In case the IC7520 is switched "off" also the SMPS will switch "off". In casethe under voltage situation remains present, the SMPS will giveunder voltage protection like slow-start, etc; this is a very goodaudible hick-up mode.

9.4.3 Unload protection

In case the load goes down e.g. the line goes down because ofstand-by mode or some failure in the line circuitry this will be

detected by IC7520 via I-prim and secondary output voltagessensing. In case the load decreases below a certain thresholdthe SMPS will switch in "reduced frequency mode" of about 20kHz ; this threshold is determined by the voltage level at pin 12of IC 7520.

REMARK: In case of an unload situation the set will switch to"low frequency mode" or standby mode. Whether this unloadsituation of the SMPS is caused by the standby command or bya failure e.g. in the line circuitry this can be determined byswitching on the set again which the remote control. In case ofstandby mode the TV will switch "on" again; in case of unloadsituation the set will NOT switch "on".

9.4.4 Overload (short-circuit) protection

If the secondary load becomes too high, I-prim also becomestoo high; this is sensed by the current sense voltage at pin 7.This voltage at pin 7 is not allowed to exceed 1 Volts DC and ithas current limiting. As the I-prim is limited, the secondaryoutput voltages will drop and supply voltage at pin 1 will alsodrop. As soon as pin 1 < 9Volts DC the driving pulses at pin 3will stop. As a result of these two mechanisms in case of anoverload the secondary voltages will drop very fast, this iscalled the foldback mechanism. The foldback point can beadjusted by pin 5 of IC7520 and this point is adjusted to amaximum tolerable output power of 85W at 90 Volts AC and165W at 276Volts AC. After this foldback the IC starts up again(see slow-start); in case the overload situation remainspresent, the SMPS will give foldback again, slow-start, etc.: asa result in case of short-circuit or overload the TV will be in agood audible hick-up mode.

9.5 Secondary side

9.5.1 Output voltages

See 9.1.2 for output voltages.

9.5.2 Regulator IC TDA 8319 (7541)

This is a low-dropout regulator. This IC has an output voltageof +5 Volts , +8 Volts and RESET signal; the input is 11 Volts.

The Pin configuration of this IC is listed below:

Pin 1 of the IC is input 1 and the output 1 pin 9 that is +5Volts DC.

Pin 2 of the IC is input 2 and the output 1 pin 8 that is +8Volts DC.

Pin 3 of the IC is a timing capacitor input and controls theturn-on delay of the reset signal.

Pin 4 of the IC is a disable pin connected to standby pin ofthe microcontroller, if the voltage below 0.5 Volts the +8Volts output will be disabled.

Pin 5 of the IC is a common ground . Pin 6 of the IC is a reset voltage output connected to the

microcontroller. This reset output is developed with respect+5 Volts output level of 4.95 Volts.

Pin 7 of the IC is a program pin for output 2, in this circuitthis output pin 8 is programmed to +8.2 Volts by resistors3552, 3553 and 3554.

Other features of this IC:

Built-in thermal protection. Built-in over current and short circuit protection for +5 Volts

and +8Volts. Low dropout voltage

Mains Voltage:

90 - 276V multi voltage 150 - 276V single voltage

Mains frequency: 50 Hz , 60 Hz

Power consumption in normal mode:

25" 75W + /- 10%

29" 90W +/- 10%

Power Consumption in stand-by mode: 11W


9.6 SINGLE CHIP PROCESSOR IC7225 (=TDA8374)

Introduction :

In this chip most of the video, audio and sync circuits areintegrated and in the diagrams the IC is split up into 5 parts:5A,5B,5C,5D and 5E.

IC7225-5A, video detector ,see diagram A4. IC7225-5B, source select en PAL demodulator ,see

diagram A6. IC7225-5C, video control, see diagram A4. IC7225-5D, horizontal and vertical sync, see diagram A3. IC7225-5E, mono sound demodulator, see diagram A4.

9.6.1 IC7225-5A, IF video detector, see diagram A4

Tuning system

For the tuner 1000 there are two possibilities: VST type or PLLtype and in both cases the tuner is controlled by the uC. TheVST tuner is controlled via V_TUNE, AFC and the BS1, BS2band switching signals; the PLL tuner is fully I2C controlled. IC7225-5A contains the IF amplifier and the IF detector, the IFsignal is present at the output pin 11 of the tuner. BS1 and BS2(pin 17-18) switching signals used for band switching of a VSTtuner.

IF bands pass filter , the IF bands pass characteristic isdetermined by the band-pass of the SAW filter 1015, listedbelow you will find the possibilities :

For PAL BG sets a SAW filter with 5.5 MHz bandwidth isused (33.4 to 38.9 MHz).

For PAL 1 sets a SAW filter with a bandwidth of 6.0 MHz isused (32.9 to 38.9 MHz).

For PAL BG/SECAM BG/LL' sets a SAW filter with 6.5 MHzband switch is used to enable BG/I/LL' reception (33.9 to40.4 MHz).

For PAL BG/SECAM BG/DK sets a SAW filter with abandwidth of 6.5 MHz is used (32.4 to 38.9 MHz).

IF-demodulator

IF-demodulation is done with reference circuit L5260 at pin 3and 4 of IC7225-5A; AGC control of tuner via pin 54 IC7225-5A. Top sync level is used for AGC inside IC7225-5A. AGCadjustment is done by 1(C control via entry into the SAMservice menu. C2202 at pin 53 determines time constant of theAGC. Base band CVBS signal at pin 6 of IC7225-5A (normal -3V2) is fed to the sound trap filters (1206, 1207, 1208, 1209and 5206) and returns to pin 13 of IC7225-5B for sourceselection and video processing (diagram A6). The NTSC_ SWsignal from the control microprocessor switches on transistors7216 and 7217 to activate filter 1209 when an NTSC signal isreceived. Demodulation for sound IF takes place for the varioussignals as follows: For single mono signal, the CVBS_Soundsignal goes to filter 1104 for 4.5 MHz and filter 1102 for5.5MHz. The sound _IF is connected to pin 1 of IC7225-5E fordemodulation.

9.6.2 PAL/NTSC Processing (IC7225-5B, see diagram A6)

IC7225-5B contains : source selector and PAL/NTSC colourdecoder.

The main functions are :

Source SelectionThe input selector has CVBS_INT 1CHARGE voltage (VBCL) at pin 22 will decrease.For beam current limiter contrast reduction begins if VBCL 4V OSD can be inserted at theRGB-out pins


X-ray protection. If the EHT will become too high, the tubewill radiate too much X-ray, this is detected by monitoringthe flyback pulses at pin 11 of the LOT.

Beam current protection. If the beamcurrent becomes toohigh the Bimos is able to reduces this by making theEHT_info line low. The circuitry around transistor 7481 incircuit diagram A2, will detect this and create a PROTsignal.

The E/W amplifier has two protections. One protection forovercurrent, for exampleshort circuit of E/W FET and oneprotection for overvoltage; like interrupted capacitor inlower half of the diode modulator.

Start-up of the horizontal oscillator via the (8V gives a start-upcurrent to pin 37; if the voltage on pin 37 exceeds 5V6 thehorizontal oscillator starts to oscillates at approx. 25kHz. Onlyif the supply pin of IC 7225 (= pin 12 at IC 7225-5A in diagramA4) becomes 8V the line frequency will change to 15625 Hz.The horizontal synchronization separator separates horizontalpulses out of CVBS signals and synchronizes the free-runninghorizontal sawtooth generator. The horizontal oscillatorsawtooth is converted into a square wave voltage with variableduty cycle. This square wave at pin 40 is fed to the line outputstage. The time constant of the synchronization circuit isautomatically internally determined by IC 7225-5D. Pin 41 isSANDCASTLE output and also HORIZONTAL FLYBACKinput.

The SANDCASTLE has an output current a some mA, theamplitudes of sandcastle pulse is : burst 5V3, line blanking3V and during frame blanking 2V.

If the input acts as a HORIZONTAL FLYBACK pulse, theinput has a current of 100-300 mA. This horizontal flybackpulse compares the phase of flyback pulse with phase ofthe horizontal oscillator; if the phase is not correct the dutycycle of horizontal oscillator will be adjusted.

Flash protection: The BCI info is applied to pin 42 ofIC7225-5D. If due to a flash in the picture tube the voltageat pin 42 is > 6V, the horizontal drive will be switched offimmediately. If the voltage is again < 6V the horizontaldrive will be switched on again via the slow start procedure.

EHT over voltage protection. The BCI info is also applied topin 50 of IC7225-5D. First the BCI will compensate verticalpicture amplitude variations due to beam currentvariations. The control range is between 1.2V and 2.8V.However if the voltage at pin 50 exceeds 3.9V the EHTovervoltage protection will be activated and the horizontaldrive is switched off.

The line output circuitryIn principle the line output stage pin 40 of IC 7225-5D drivesthe line output stage consisting of TS 7445 and transformer5445 via drivers TS 7440-7441. The line output stage suppliesthe deflection current and the following supply voltages (seealso the power supply block diagram ) :

Output voltage (See diagram A2) LOT (5445 Line outputtransformer) output voltage

EHT, + 200V, Vg2, focus and ff for the picture tube. 200V for the CRT drive + 5V for the control and tuner supply + 9V for the tuner supply + 11V for the control and vertical drive output - 11V for the vertical drive output

Vertical synchronization IC 7225-5D and the frameamplifier IC 7401The vertical oscillator (= 50Hz) is controlled by the incomingvideo signal. The vertical output is driven in anti-phase via thepins 46 and 47. At pin 41 the so called "Sandcastle " pulse is

present; the sandcastle pulse is applied to several parts of thecircuits for timing purposes.

Frame amplifierIn principal the frame output stage IC 7401 (TDA9302H) isused for the vertical deflection. This IC is controlled at pins 1and 3 by the vertical control signal of IC 7225-5D and adeflection current is generated at pin 5. The vertical flybacksignal is generated at pin 3 of this IC.

Protection of IC 7401; depending on +11V and -11V supply todrive the vertical deflection CRT. In case of supply voltage+11V or -11V needs a too high current, the VFL pin 3 of IC7401 voltage will drop < 6.5V. As a result the VFL will feedbackthis to pin 37 of 7600 micro processor and this will switch thesupply to stand-by mode.

9.6.5 Sound detector (IC7225-5E, diagram A4)

Single FM-mono sound for demodulation will take place inIC7225-5E. No adjustment are required because of automaticPLL tuning from 4.2 to 6.8 MHz .

9.7 Information of NVRam, tuners, video and audioI.C.'s.

The following components are also applied in this chassis:

IC7620 in circuit diagram A5: NVRAM : ST24W04B1 (Non-Volatile Memory). The ST24W04B1 is a 4k bit EEPROMdevice. The enable pins E1 and E2 selects betweenmaximal four different ST24W04B ICs. Last status of a setis stored in the EEPROM and can be retrieved wheneverthere is a power interruption

Tuner 1000 in circuit diagram A4: UV1355 or UV1336 isapplied :The list of tuners is as follows:For 25 and 29 AP, tuner type UV1335 is used; Type oftuning is VST.For 25 and 29 Latam, tuner type UV1336 is used; Type oftuning is PLL.

Audio IC's: IC7310: TDA9860, Audio processor IC IC7315: TDA9850, BTSC DBX decoder with SAP IC7312: AN 7312, AVC= automatic Volume Correction IC7202: MSP3410D, Nicam stereo decoder IC7202: MSP3400C, 2CS Korea and 2CS German

decoder IC7313: HEF4052, switch function IC IC7311: TDA7057A , 2X3W stereo sound amplifier

For European and A/P sets we can have 2CS, mono/stereo/dual sound: this is decoded by IC7202(=MSP3400/MSP3410)on Nicam sound panel "C". Also Nicam mono/stereo/dualsound is decoded by IC7202.

For A/P, Latam and USA we use the BTSC decoding ; seeIC7315 in circuit diagram A8.

NTSC/SECAM sound system IC (BTSC decoding IC)

General description of BTSC specifications

The BTSC sound system is based on the AM-FM method andis capable of broadcasting:

MONO information {only MONO Carrier modulated} STEREO information {MONO C -> 1/2(L+R) and STEREO

SC -> 1/2(L-R)} DUAL information {MONO C -> language A and SAP SC -

> language B}


STEREO & SAP information STEREO: {MONO C -> 1/2(L+R) and STEREO SC-> 1/

2(L-R)} and SAP:{second audio channel}

The sinlge FM-mono sound decoding will take place in IC7225-E; see circuit diagram A4.

IC7312 (= AN7318S) in diagram A7 is an Automatic VolumeCorrection (AVC) present. Automatic volume correction (AVC)function provides a constant output level of -18dBFS for inputlevels between 0dBFS and -24dBFS. In this way it is possible

to adjust different sound sources (eg Terrestric/SAT channels,SCART) to equal volume level. The increased volume ofadvertising is compensated as well. The volume correctionstep width is quasi continuosly. The filter maximum isperformed with an attack time of 16ms and a programmabledecay time i.e 8,4,2 sec and 20ms

IC7311: TDA7057AQ in circuit diagram A7 is a 2X3W stereosound amplifier.

Figure 9-1

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DEMAGNETIZATIONMANAGEMENT

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ection of headphones.

t volume level. Press these 2 keyseously will call up the 1st levelress these 2 keys again will exitorks as cursor left (VOLUME L) orLUME K) in a menu.

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Connecting peripheral equipment

Equipment such as VCR, Laser disc player, VCD etc. could be connected tothe video and audio (AV) sockets at the back of the TV. Switch off the TVand equipment before making any connection.

Connection for playback

VCR

VCD

1. Connect to AV sockets connect the corresponding sockets of

the equipment to that of the TV. to view the playback, select a channel

named AV1 (if connection is made tosockets at VIDEO 1 in) or AV2 (ifconnection is made to sockets atVIDEO 2 in).

Note : If you have connected a computergame set to VIDEO 1 in, select a channelnamed GAME1 to playback. If yourconnection is made to VIDEO 2 in, thenselect GAME2 to playback.

2. Connect to aerial socket(only for VCR)

The playback on your VCR is considered aTV channel by your TV if you connect viathe aerial socket. You must tune in toyour VCRs test signal and assign thechannel number 0 to it. Refer to yourVCRs instruction manual for moredetails. connect the RF cable to the VCRs RF

in and connect the RF out of the VCRto the aerial socket of the TV.

select channel 0 and tune in to to yourVCRs signal.

to view the playback, select channel 0.

VCR

Laser discplayer

VIDEO 2in

MONITOR out

VIDEO 1 in

AUDIO

VIDEO

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MONITOR out

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all up 1st level menu with the MENU

ey.

croll up with the key to highlightSTALLATION.

elect INSTALLATION with the or key.

ANGUAGE is highlighted.

elect the language of your choice withe or key.

rom now on, all menus and screenformation will be in the language that

ou have chosen.

xit with the OSD

key.

automatically (by AUTO STORE) or

storeto tune in channels automatically.all up 1st level menu with the MENU

ey.

croll up with the key to highlightSTALLATION.

elect INSTALLATION with the or key.

croll down with the key toighlight AUTO STORE.

elect AUTO STORE with the or ey.ing bar appears and the TV will

matically store all available channels.nels will be stored starting from the

channel number .
1
CHILD LOCK BSURF A/CHINSTALLATION BBRIGHTNESS 44COLOUR 28

Installing the TV

Selecting the menu languag

1. Ck

2. SIN

3. S

L

4. SthFiny

5. E


Tuning in the TV channelsThere are 2 ways to tune in channels :manually (by MANUAL menu).

AutoUse 1. C

k

2. SIN

3. S

4. Sh

5. Sk

A tunautoChannext

LANGUAGE ENGAUTO STORE BSWAP B

LANGUAGE ENGAUTO STORE BSWAP BSKIP B

AUTO STORE 15

10

To call up the 1st level menu :

Press MENU key.

To use the menus: Press the cursor keys.

scroll up scroll down select or execute

To exit from a menu: Press MENU key to go back to the previous level.OR Press

OSD

key to exit.

GAME

VOL VOLCH

CH

SMART

PICTURE SOUND

MENU

2OSD

H AV

1 2 3

4 5 6

7 8 9

0 A/CH

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1st level

BRIGHTNESS 44COLOUR 28CONTRAST 55SHARPNESS 53HUE 0COLOUR TEMP COOLCONTRAST PLUS OFF VOLUME 19BALANCE 0TREBLE 50BASS 50INCREDIBLE ST OFFAVL OFFSLEEPTIMER OFFCHILD LOCK BSURF A/CHINSTALLATION B

2nd level

CODE CHANNEL 4LOCK NO

LANGUAGE ENGAUTO STORE BSWAP BSKIP BMANUAL B

3rd level

FROM 3TO 4EXCHANGE B

CHANNEL 7SKIP NO

SYSTEM AUTOSEARCH VHF1BFINE TUNECHANNEL 2STORE B

VOL VOLCH

CH

MENU

VOL VOLCH

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or CH keys.

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or key.ighted.

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he key to

e or key.D appears toannel is skipped.peat step 3 to 5 butES.

ey.

14

installing the tv

How to deal with poor picture receptionYou can use these 3 ways to deal with poor picture rece Skip channels System selection (for multi and dual system sets on Fine tuning

Do the following steps to go into INSTALLATION 1. Call up 1st level menu with the MENU key.2. Scroll up with the key to highlight INSTALLATIO3. Select INSTALLATION with the or key.

Skip channelsThis menu enables yowhich have bad recepwhich you do not watchannel is skipped, yoselect it with the

CH

1. Scroll down with thighlight SKIP.

2. Select with the CHANNEL is highl

3. Enter a channel nu

4. Scroll down with thighlight SKIP.

5. Select YES with thCHANNEL DELETEconfirm that the ch

To unskip channels, reselect NO instead of Y

6. Exit with the OSD

k

AUTO STORE BSWAP BSKIP BMANUAL B

CHANNEL 6SKIP NO

CHANNEL 6SKIP NO

CHANNEL 6SKIP YESCHANNEL DELETED


13


installing the tv

ManualThis menu enables you to search and storeevery available channel manually.1. Call up 1st level menu with the MENU key.

2. Scroll up with the key to highlightINSTALLATION.

3. Select INSTALLATION with the or key.

4. Scroll down with the key to high-light MANUAL .

5. Select MANUAL with the or key.

6. Scroll down with the key to high-light SEARCH.

7. Select the band (UHF, VHF1 or VHF3)with the key.

8. Press the key to start searching.Searching stops once a channel isavailable. If you decide to store thechannel, proceed to the next step. If not,press the key to start searchingagain.

9. If you wish to fine tune the channel,scroll down to highlight FINE TUNE.Press the or key to fine tune.

10. Scroll down with the key to high-light CHANNEL and assign a channelnumber to the channel that you found.

11. Scroll down with the key to high-light STORE and press the or keyto store the channel.


key.

SWAP BSKIP BMANUAL B

SYSTEM AUTOSEARCH VHF1BFINE TUNE

SYSTEM AUTOSEARCH VHF1BFINE TUNECHANNEL 6

SYSTEM AUTOSEARCH VHF1BFINE TUNECHANNEL 6STORE B

SEARCH VHF1BFINE TUNECHANNEL 4STORE B

FINE TUNECHANNEL 4STORE B

FINE TUNECHANNEL 4STORED

10D

irection for use42

L7.3A

9

ALANCE, TREBLE and BASS of aent on treble and bass will auto-

mode of the SMART SOUND feature.

U key. key to highlight the item that you

key.

justment done will automatically beSMART SOUND feature.U key.ghlight INCREDIBLE ST.

COLOUR 28CONTRAST PLUS OFFVOLUME 19BALANCE OTREBLE 50

E 30CE 10

5050

IBLE ST OFF

4050

T OFFOFFOFF

TREBLE 40BASS 50INCREDIBLE ST ONAVL OFFSLEEPTIMER OFF

VOLUME 30BALANCE OTREBLE 50BASS 50INCREDIBLE ST OFF

1

Sound settings

Personal settingsYou can do adjustment on VOLUME, Bpicture via the 1st level menu. Adjustmmatically be stored in the PERSONAL

How to do adjustment1. Call up 1st level menu with the MEN

2. Scroll up or down with the or wish to adjust.

3. Select or adjust with the or 4. Exit with the

OSD key.

Incredible stereoA feature to enhance stereo sound. Adstored in the PERSONAL mode of the 1. Call up 1st level menu with the MEN2. Scroll down with the key to hi3. Select ON with the or key.4. Exit with the

OSD key.

SURF A/CHINSTALLATION BBRIGHTNESS 44COLOUR 28CONTRAST 55

VOLUMBALANTREBLEBASSINCRED

BALANCE 10TREBLE 40BASS 50INCREDIBLE ST OFFAVL OFF

GAME

VOL VOLCH

CH

SMART

PICTURE SOUND

MENU

2OSD

H AV

1 2 3

4 5 6

7 8 9

0 A/CH

h

b

ey f 4

SURF


TREBLEBASSINCREDIBLE SAVLSLEEPTIMER

15

installing the tv

System selectionFor multi system sets:This feature enables you to select eitherPAL-BG, PAL-I, PAL-DK, SECAM-DK, NTSCM or AUTO. If AUTO is selected, it meansthat the system is automatically selectedaccording to the current transmission.

For dual system sets:This feature enables you to select eitherPAL-DK or PAL-I.

For single system sets:This feature is not selectable.

1. Scroll down with the key tohighlight MANUAL .SYSTEM is highlighted.

2. Press the or key to select asuitable system.


key.

SWAP BSKIP BMANUAL B

SYSTEM PAL-DKSEARCH VHF1BFINE TUNE

10D

irection for use43

L7.3A

inutes to a maximum of

u do not wish othersl channels (inclusive ofm of 5 channels). Once

6 keys on the TV, there

led

trol. A messagereen each time you try topass the lock mode,he 4-digit confidential

el menu with the MENU

ith the key toPTIMER.

riod with the or

OSD

key.

23

Other features

SleeptimerSets timer to switch TV to standby in steps of 15 m120 minutes. To disable timer, set to OFF.


INCREDIBLE ST OFFAVL OFFSLEEPTIMER OFFCHILD LOCK BSURF SURF

INCREDIBLE ST OFFAVL OFFSLEEPTIMER 30CHILD LOCK BSURF SURF

Child LockThis feature enables you to lock channels which yoe.g. children to watch. You have a choice to lock alAV1 or AV2) or individual channel (up to a maximua channel is locked: if you call channels up with the CHANNEL 7 or

will be no picture and sound. access to the INSTALLATION sub-menu is disab

You can only call up channels with your remote conLOCKED and CODE appears on the sccall up a channel with the controls on the TV. To byyou will need to use your remote control to key in tcode that you have entered when you locked it.

To set timer1. Call up 1st lev

key.

2. Scroll down whighlight SLEE

3. Select time pekey.

4. Exit with the

20

sound settings

AVL-Auto Volume LevellerThis feature if switched on will automatically adjust any sudden changes inthe TVs volume to a preset level.1. Call up 1st level menu with the MENU key.2. Scroll down with the key to highlight AVL.3. Select ON with the or key.4. Exit with the

OSD

key.

Smart SoundThese are some sound presets on the TV for your viewing pleasure. Pressthe

SMART

SOUND

key repeatedly to select VOICE, MUSIC, THEATRE or PERSONAL*.

(Note *: NORMAL for certain model)


BASS 50INCREDIBLE ST OFFAVL OFFSLEEPTIMER OFFCHILD LOCK B

BASS 50INCREDIBLE ST OFFAVL ONSLEEPTIMER OFFCHILD LOCK B

GAME

VOL VOLCH

CH

SMART

PICTURE SOUND

MENU

2OSD

H AV

1 2 3

4 5 6

7 8 9

0 A/CH

h

b

ey f 4

SURF

VOICE

MUSIC

THEATRE

PERSONAL

Emphasizes speechfrequency.

Emphasizes bass frequencyso that music is dynamic.

Emphasizes low andhigh frequencies to givesensation to the actionand a wider soundambience.

Your personalsound settings.

10 Direction for use44 L7.3A

25

SURF

A/C

HIN

STA

LLAT

ION

BB

RIG

HTN

ESS

44CO

LOU

R28

CON

TRA

ST55

AVL

OFF

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PTIM

ERO

FFCH

ILD

LO

CKB

SURF

A/C

HIN

STA

LLAT

ION

B

COD

Ex

x x

xCH

AN

NEL

7LO

CKN

O

To u

nlo

ck c

han

nel

s1.

Cal

l up

1st

leve

l men

u w

ith

th

e M

ENU

key.

2.S

cro

ll d

ow

n w

ith

th

e k

ey t

oh

igh

ligh

t C

HIL

D L

OC

K.

3.P

ress

o

r k

ey t

o e

nte

r m

enu

.

4.K

ey in

th

e 4-

dig

it c

on

fid

enti

al c

od

ew

hic

h y

ou

hav

e en

tere

d w

hen

yo

uac

tiva

te C

HIL

D L

OC

K m

od

e.If

yo

u k

ey in

an

inco

rrec

t co

de,

all

item

s in

the

child

lock

men

u c

an b

e se

lect

ed, b

ut

itis

no

t p

oss

ible

to

ch

ang

e an

y o

ne

of

them

.If

yo

u k

ey in

a c

orr

ect

cod

e, C

HA

NN

EL

will

be

auto

mat

ical

ly h

igh

ligh

ted

.Ti

ps

: If

you

fo

rget

yo

ur

con

fid

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al c

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ter

the

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iver

sal c

od

e 88

88.

5.K

ey in

a c

han

nel

nu

mb

er w

hic

h y

ou

wis

h t

o u

nlo

ck.

6.S

cro

ll d

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n w

ith

th

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oh

igh

ligh

t LO

CK

.

7.P

ress

o

r k

ey t

o s

elec

t N

O t

ou

nlo

ck t

he

sele

cted

ch

ann

el.

8.R

epea

t st

eps

5 to

7 f

or

oth

er c

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nel

sw

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nlo

ck. O

nce

yo

uh

ave

com

ple

ted

, pro

ceed

to

th

e n

ext

step

.

9.E

xit

wit

h t

he

OSD

key

.

COD

E

CH

AN

NEL

5LO

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S

COD

E

CH

AN

NEL

5LO

CKN

O

o

ther

fea

ture

s

24

To lo

ck c

han

nel

s1.

Cal

l up

1st

leve

l men

u w

ith

th

e M

ENU

key.

2.S

cro

ll d

ow

n w

ith

th

e k

ey t

oh

igh

ligh

t C

HIL

D L

OC

K.

3.P

ress

o

r k

ey t

o e

nte

r m

enu

.

4.K

ey in

th

e u

niv

ersa

l co

de

8888

.If

yo

u d

o n

ot

key

in t

he

cod

e, y

ou

will

no

tb

e ab

le t

o c

han

ge

anyt

hin

g o

n t

his

men

u.

5.P

ress

o

r k

ey t

o s

elec

t A

LL (

tolo

ck a

ll ch

ann

els)

or

ente

r a

chan

nel

nu

mb

er (

to lo

ck in

div

idu

al c

han

nel

s).

6.S

cro

ll d

ow

n w

ith

th

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ey t

oh

igh

ligh

t LO

CK

.

7.P

ress

o

r k

ey t

o s

elec

t Y

ES

to

lock

th

e se

lect

ed c

han

nel

/s.

8.R

epea

t st

eps

5 to

7 f

or

oth

er c

han

nel

sw

hic

h y

ou

wis

h t

o lo

ck. O

nce

yo

uh

ave

com

ple

ted

, pro

ceed

to

th

e n

ext

step

.

9.S

cro

ll u

p w

ith

th

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ey t

o h

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ligh

tC

OD

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ey in

yo

ur

ow

n 4

-dig

itco

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tial

co

de.

C

ON

FIR

M C

OD

E

app

ears

.

10.K

ey in

th

e 4

dig

its

agai

n t

o c

on

firm

and

use

it w

hen

ever

yo

u w

ant

toac

cess

to

lock

ed c

han

nel

s.

11.E

xit

wit

h t

he

OSD

key

.

SURF

A/C

HIN

STA

LLAT

ION

BB

RIG

HTN

ESS

44CO

LOU

R28

CON

TRA

ST55

AVL

OFF

SLEE

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ILD

LO

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SURF

A/C

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LLAT

ION

B

o

ther

fea

ture

s

COD

E

CH

AN

NEL

ALL

LOCK

NO

COD

Ex

x x

xCH

AN

NEL

ALL

LOCK

NO

COD

E x

x x

xCH

AN

NEL

7LO

CKYE

S

COD

Ex

x x

xCH

AN

NEL

ALL

LOCK

YES

CON

FIRM

CO

DE

CHA

NN

ELA

LLLO

CKYE

S

10 Direction for use 45L7.3A

27

Del

etin

g c

han

nel

s fr

om

a s

urf

list

1.P

ress

th

e A

/CH

SURF

key

to

cal

l up

ch

ann

els

in t

he

surf

list

.

2.A

s so

on

as

you

fin

d t

he

chan

nel

yo

uw

ish

to

del

ete,

pre

ss t

he

A/C

HSU

RF

key

wit

hin

4 s

eco

nd

s o

r w

hile

th

e ch

ann

eln

um

ber

is s

till

bei

ng

dis

pla

yed

.D

ELE

TE

D

app

ears

bel

ow

th

ech

ann

el n

um

ber

. Th

is m

ean

s th

ech

ann

el is

del

eted

fro

m t

he

surf

list

.

3.R

epea

t st

ep 1

to

2 f

or

oth

er c

han

nel

sw

hic

h y

ou

wis

h t

o d

elet

e fr

om

th

esu

rf li

st.

Sel

ecti

ng

alt

ern

ate

chan

nel

(A

/CH

)1.

Cal

l up

1st

leve

l men

u w

ith

th

e M

ENU

key.

2.S

cro

ll u

p w

ith

th

e k

ey t

o h

igh

ligh

tS

UR

F.

3.S

elec

t A

/CH

wit

h t

he

or

key

.

4.E

xit

wit

h t

he

OSD

key

.

Wh

en y

ou

are

vie

win

g a

ch

ann

el (

e.g

chan

nel

nu

mb

er 6

) an

d if

yo

u w

ish

to

go

bac

k to

th

e p

revi

ou

s ch

ann

el (

e.g

.ch

ann

el n

um

ber

3),

pre

ss t

he

A/C

HSU

RF

key

on

ce.

If y

ou

wis

h t

o g

o b

ack

to c

han

nel

nu

mb

er 6

ag

ain

, pre

ss t

he

A/C

HSU

RF

key

agai

n.

3

3 DEL

ETED

o

ther

fea

ture

s

SURF

A/C

HIN

STA

LLAT

ION

BB

RIG

HTN

ESS

44CO

LOU

R28

CON

TRA

ST55

CHIL

D L

OCK

BSU

RFA

/CH

INST

ALL

ATIO

NB

BRI

GH

TNES

S44

26

o

ther

fea

ture

s

Su

rfT

her

e ar

e 2

sele

ctab

le f

un

ctio

ns:

1.S

urf

: C

reat

e a

list

of

chan

nel

s (m

axim

um

8)

wh

ereb

y w

hen

yo

u p

ress

the

A/C

HSU

RF

key

on

th

e re

mo

te c

on

tro

l, yo

u a

re a

ble

to

qu

ickl

y vi

ewth

rou

gh

all

thes

e ch

ann

els.

2.A

/CH

: W

hen

th

is is

sel

ecte

d a

nd

if y

ou

pre

ss t

he

A/C

HSU

RF

key

on

th

ere

mo

te c

on

tro

l, yo

u a

re a

ble

to

see

th

e p

revi

ou

sly

wat

ched

ch

ann

el.

Cre

atin

g a

su

rf li

st1.

Cal

l up

1st

leve

l men

u w

ith

th

e M

ENU

key.

2.S

cro

ll u

p w

ith

th

e k

ey t

o h

igh

ligh

tS

UR

F.

3.S

elec

t S

UR

F w

ith

th

e o

r k

ey.

4.E

xit

wit

h t

he

OSD

key

.

5.S

elec

t a

chan

nel

. Pre

ss t

he

SU

RF

key

wit

hin

4 s

eco

nd

s o

r w

hile

th

e ch

ann

eln

um

ber

is s

till

bei

ng

dis

pla

yed

.A

DD

ED

ap

pea

rs b

elo

w t

he

chan

nel

nu

mb

er. T

his

mea

ns

the

chan

nel

isad

ded

to

th

e su

rf li

st.

6.R

epea

t st

ep 5

fo

r o

ther

ch

ann

els

wh

ich

yo

u w

ish

to

ad

d t

o t

he

surf

list

.

Ho

w t

o c

all u

p c

han

nel

s in

th

e su

rflis

t1.

Pre

ss t

he

A/C

HSU

RF

key

on

ce a

nd

th

e T

Vw

ill s

wit

ch t

o t

he

nex

t ch

ann

el w

hic

his

on

th

e su

rf li

st O

R

Pre

ss a

nd

ho

ld t

he

A/C

HSU

RF

key

to c

ycle

thro

ug

h a

ll th

e ch

ann

els

on

th

e su

rflis

t.

SURF

A/C

HIN

STA

LLAT

ION

BB

RIG

HTN

ESS

44CO

LOU

R28

CON

TRA

ST55

CHIL

D L

OCK

BSU

RFSU

RFIN

STA

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BB

RIG

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44

5 AD

DED

3 SURF

5 SURF

11 Abbreviations46 L7.3A11 Abbreviations(R-Y)_OUT R-Y output from chroma demodulatoruC MicrocomputerAQUA Aquadaq layer on the outside of the picture

tubeAV_MUTE Signal to mute the sound on the Audio-out

cinchAVL_AV2/AVL Switching signal from UP to the Auto Volume

leveller on the ITT on BTSC Panel or RearCinch I/P 2 width CVBS. R and Sound

B_TXT_OSD Blue TXT or OSD signal from (C to the videocontroller IC7225-5C

BASS Control signal for BASSBCI Beam Current informationBG/1_or_BG/0 K Monochrome TV system sound carrier + 5.5

MHz (BG), Sound carrier + 6 MHz(I), Soundcarrier + 6.5 MHz (DK)

BL_TXT_OSD Fast blanking signal to IC7725-5C to displayOSD and TXT

BLACKSTR_SW Black stretch switchBS1 TV band selection 1 signalBS2 TV band selection 2 signalCHROMA_O/NTSC_SW Switch on signal for NTSC chroma oscillator

(3.575 MHz)CHROMA_1/BG/L Switch on signal for BG/L chroma oscillator

(3.582 MHz)CHROMA_1/STATUS Switch on signal for NTSC chroma oscillator

(3.579 MHz)CHROMA_2/STATUS Signal to select the correct system in case of

trinormaCVBS_EXT1 CVBS external 1 input signalCVBS_EXT2 CVBS external 2 signalCVBS_IN CVBS internal 1 (from tuner)CVBS_OUT CVBS output signalCVBS_OUT_1 CVBS output signal 1CVBS_SOUND CVBS for inter carrier sound detectorCVBS_TXT CVBS for TXT processing in uCDISCHARGE To have a fast discharge after switching off

the setEAR EarthEEPROM Electrical Erasable Programmable Read Only

MemoryESD Electrical Static Dischargeff Filament (heater voltage) from LOT to the

picture tubeFL_A Filament voltage for CRTG_TXT_OSD Green TXT or OSD signal from the uC to

IC7225-5CGND GroundGRD_LOT Ground of LOTHOR.FLYBACK Horizontal flyback pulse used for looking the

horizontal oscillator12C Digital Control bus of the microcomputerIF Intermediate frequency signal for sound

processingINT/EXT Switching signal for Internal or external audio +

video switchingL_EXT1 Audio left external 1LEFT_OUT Audio left outMOD_L_1N1 SCART I/P 1 in leftMOD_L_1N2 SCART I/P 2 in leftMOD_R_1N1 SCART I/P 1 in righMOD_L_1N2 SCART I/P 2 in leftMONO/STROBE/BG_L Strobe signal for HEF 4094 on multi-mono

sound panelMONO_OUT Audio mono outNTSC NTSC colour systemPAL/SECAM PAL or SECAM colour systemR_TXT_OSD Blue TXT or OSD signal from the uC to the

video controller IC7225 5C

RAM Random Access MemoryRESET1 Reset signal for the uCRF_AGC Automatic gain control signal I for tunerRIGHT_OUT Audio right ouROM Read Only MemorySAM Service Alignment ModeSANDCASTLE Sand castle signal from IC7225-5D to delay

line IC7255 and SECAM chrominancedecoder IC7241.

SCL Clock line of the 12C-busSDA Data line of the 12C-busSDM Service Default Mode; predefined mode for

faultfindingSECAM_REF SECAM referenceSID/STA/LL Sound identification / stereo available / france

system "L"SIF Sound IF signal for FM demodulatorSTANDBY Switching signal from uC "low" for standby

(power supply will be switched to stand-bymode), "high" for normal operation

TREBLE Treble control signalV_TUNE Tuning voltage for tunerVFB Vertical flyback pulseVFL 50Hz vertical flyback pulse used to inform the

uC that flyback takes place. This is importantfor OSD and TXT

VG2 Voltage on grid 2 of the picture tubeVOLUME Control signal (from uC, but on DC level via RC

nework) for volume control of soundprocessing in sound panel

12 Spareparts list 47L7.3A
12 Spareparts listMainpanel
Various

0136 4822 492 70289 SPRING K120139 4822 276 13603 SWITCH,MAINS0140 4822 256 92053 FUSE HOLDER

CLICK (PROM)0141 4822 265 20723 B2P3-VH0142 4822 265 20723 B2P3-VH0151 4822 256 10336 LED HOLDER0177 4822 492 70788 FIX IC0189 4822 402 10844 PCB RELIEF

BRACKET0191 4822 267 31014 HEADPHONE

SOCKET0191 4822 267 51391 F PHONE 3.5MM

STEREO0210 4822 492 70289 SPRING K120211 4822 492 70289 SPRING K120231 4822 265 10453 9P1000 4822 210 10737 UV1355/I1000 4822 210 10771 UV1355S/I1000 4822 210 10803 UV1336B/AIS1000 4822 210 10804 UV1336B/AFS1000 4822 210 10814 UV1336B/A F1007 4822 212 11691 FRAME 29"1015 4822 242 10357 OFWK2960M1015 4822 242 10874 45.750 000 MHz1015 4822 242 81556 B39380-K2953-

M1001015 4822 242 81964 B39389-G1984-

M1001102 4822 242 10316 SFSF6,5MHz B-

TF211104 4822 242 10314 SFSH5,5MHz B-

TF211104 4822 242 10362 SFSH6,0MHz B-

TF211104 4822 242 10363 SFSH4,5MHz B-

TF211206 4822 242 81572 TPS6,0MB-TF211207 4822 242 81712 TPWA04B1207 4822 242 81978 TPS4,5MB-TF211208 4822 242 81301 TPS6,5MB-TF211209 4822 242 81978 TPS4,5MB-TF211275 4822 242 10327 HC49/U 3M5756111275 4822 242 10356 4,433619MHz HC49/

U1275 4822 242 10695 4 433 619 MHz1277 4822 242 10355 3,579545MHz HC49/

U1277 4822 242 10776 3.579 545 MHz1278 4822 242 10326 HC49/U 3M5820561300 4822 242 10359 CSB503F581500 4822 070 35002 218005.(5A)1572 4822 071 51002 19372(1A)1600 4822 276 13775 SWITCH1601 4822 276 13775 SWITCH1602 4822 276 13775 SWITCH1603 4822 276 13775 SWITCH1670 4822 218 11573 GP1U28QP1681 4822 242 10694 12 000 000 MHz

g

2002 4822 124 80791 F 470F 16V 20%85C DXH=8X11.5

2050 4822 126 13486 F 15pF 2% 63V2128 5322 126 10465 F 3.9nF 10% 50V2198 4822 122 33805 F 330pF 10% 63V2199 4822 122 33805 F 330pF 10% 63V2209 4822 126 13473 F 220nF 80-20%

50V2215 4822 126 13061 F 220nF 20% 25V2224 4822 124 11576 F 220F 20% 25V2275 4822 126 13486 F 15pF 2% 63V2277 4822 126 13486 F 15pF 2% 63V2278 4822 126 13486 F 15pF 2% 63V2283 4822 126 12944 F 47nF 10% 50V2284 4822 126 12944 F 47nF 10% 50V2285 4822 126 12944 F 47nF 10% 50V2315 4822 126 13482 F 470nF 80/20%

16V2316 4822 126 13482 F 470nF 80/20%

16V2323 4822 121 43823 F 470nF 5% 50V2324 4822 121 43823 F 470nF 5% 50V2325 4822 121 43823 F 470nF 5% 50V2326 4822 121 43823 F 470nF 5% 50V2327 4822 126 13482 F 470nF 80/20%

16V2328 4822 126 13482 F 470nF 80/20%

16V2337 4822 122 32646 F 5.6nF 10% 50V2339 4822 126 14043 F 1F 20% 16V2342 4822 124 80061 F 1000F 20% 25V2346 4822 126 14043 F 1F 20% 16V2347 4822 126 14043 F 1F 20% 16V2348 4822 126 14043 F 1F 20% 16V

2349 4822 126 13473 F 220nF 80-20%50V

2351 4822 126 13482 F 470nF 80/20%16V

2353 4822 124 81151 F 22F 50V2354 4822 126 13473 F 220nF 80-20%

50V2355 4822 126 14043 F 1F 20% 16V2357 4822 126 13482 F 470nF 80/20%

16V2359 4822 126 13482 F 470nF 80/20%

16V2369 4822 126 12944 F 47nF 10% 50V2383 4822 126 14043 F 1F 20% 16V2385 4822 126 14043 F 1F 20% 16V2387 4822 126 13482 F 470nF 80/20%

16V2388 4822 122 32646 F 5.6nF 10% 50V2401 5322 121 42386 F 100nF 5% 63V2402 5322 121 42386 F 100nF 5% 63V2403 4822 124 40255 F 100F 20% 63V2404 4822 126 12171 F 3.3nF 20% 1KV2409 4822 121 42408 F 220nF 5% 63V2409 4822 121 42868 F 220nF 5% 50V2422 5322 122 32331 F 1nF 10% 100V2426 5322 121 42386 F 100nF 5% 63V2448 4822 122 31173 F 220pF 10% 500V2450 4822 124 41739 F 47F 20% 160V2451 4822 122 30103 F 22nF 80% 63V2451 4822 126 13513 F 8.2nF 10% 50V2456 4822 121 43526 F 47nF 5% 250V2457 4822 121 10518 F 250V 390nF 5%2457 4822 121 43888 F 360nF 5% 250V2458 4822 124 41984 F 10F 250V2459 4822 126 13185 F 680pF 10% 500V2460 4822 126 12638 F 6.8nF 10% B 50V2461 4822 122 31175 F 1nF 10% 500V2462 4822 121 43526 F 47nF 5% 250V2463 4822 126 12239 F 560pF 10% 2KV2463 4822 126 14053 F 1nF 10% 2KV2463 4822 126 14184 F 820pF 10% 2KV2464 4822 121 10739 F 2.2F 5% 160V

MPP4792465 4822 121 70637 F 8.2nF 5% 1600V2465 4822 121 70649 F 9.1nF 5% 1.6KV2466 4822 121 40483 F 10nF 10% 400V2467 4822 121 40488 F 22nF 10% 400V2468 5322 121 42532 F 18nF 10% 400V2468 5322 121 44151 F 33nF 10% 400V2469 4822 121 51319 F 1F 10% 63V2470 4822 122 31177 F 470pF 10% 500V2471 4822 121 51252 F 470nF 5% 63V2472 5322 124 41379 F 2.2F 20% 50V2475 4822 126 14096 F 560nF 5% 250V2480 4822 121 40518 F 100nF 10% 250V2481 4822 121 43823 F 470nF 5% 50V2484 5322 121 42386 F 100nF 5% 63V2485 4822 124 11534 F 4.7F 20% 250V2486 4822 124 80791 F 470F 16V 20%

85C DXH=8X11.52487 4822 124 11769 F 220F 20% 50V2488 4822 124 80791 F 470F 16V 20%

85C DXH=8X11.52489 4822 124 80062 F 470F 20% 35V2490 4822 122 31177 F 470pF 10% 500V2491 4822 122 31177 F 470pF 10% 500V2500 4822 126 13589 F 470nF 275V2501 4822 121 70141 F 33nF 5% 400V2502 4822 126 12793 F 2.2nF 10% 2KV2504 4822 126 12793 F 2.2nF 10% 2KV2505 4822 126 12793 F 2.2nF 10% 2KV2507 4822 126 11524 F 1.5nF 10% 1KV2508 4822 121 10486 F 330F 20% 450V2508 4822 124 41748 F 220F 20% 400V2508 4822 124 42168 F 330F 400V2510 4822 126 11524 F 1.5nF 10% 1KV2511 4822 126 13337 F 220pF 10% 1KV2517 5322 122 32331 F 1nF 10% 100V2518 4822 122 50116 F 470pF 10% 1KV2524 4822 122 33805 F 330pF 10% 63V2530 4822 124 11571 F 1F 20% 50V2531 4822 121 10738 F 1nF 2% 50V2540 4822 124 80059 F 100F 20% 25V2541 4822 124 81089 F 2.2F 20% 160V2545 4822 126 14049 F 1.5nF 20% 250V2550 4822 126 14149 F 330pF 10%R 1KV2551 4822 124 42336 F 47F 20% 160V2554 4822 126 13061 F 220nF 20% 25V2560 4822 126 14149 F 330pF 10%R 1KV2561 4822 124 81145 16V S 1000F PM202562 4822 124 41097 F 220F 20% 16V2563 4822 124 80499 F 100F 20% 16V2571 4822 124 80707 F 2200F 20% 25V2575 4822 126 14087 F 100nF 10% 63V2601 4822 126 13061 F 220nF 20% 25V2610 4822 126 13473 F 220nF 80-20%

50V2615 4822 126 13473 F 220nF 80-20%

50V2650 4822 126 13482 F 470nF 80/20%

16V2660 5322 126 10184 F 680P 5% 50V.2661 5322 126 10184 F 680P 5% 50V.2680 4822 126 13061 F 220nF 20% 25V

2684 4822 126 13061 F 220nF 20% 25V

f

3171 4822 051 20394 390k 5% 0.1W3178 4822 051 20394 390k 5% 0.1W3234 4822 052 10228 22 5% 0.33W3249 4822 051 20106 10M 5% 0.1W3277 4822 117 11437 8k2 1% 0.1W3342 4822 051 20475 4M7 5% 0.1W3346 4822 051 20121 120 5% 0.1W3360 4822 051 20121 120 5% 0.1W3401 4822 111 31051 33 5%3402 4822 111 31051 33 5%3403 4822 111 31051 33 5%3405 4822 050 21802 1k8 1% 0.6W3405 4822 050 22202 2k2 1% 0.6W3407 4822 050 21802 1k8 1% 0.6W3407 4822 050 22202 2k2 1% 0.6W3409 4822 052 10158 15 5% 0.33W3430 4822 052 10478 47 5% 0.33W3443 4822 051 20684 680k 5% 0.1W3451 4822 053 11479 47 5% 2W3453 4822 117 12822 47 5% 5W3454 4822 053 11333 33k 5% 2W3462 4822 117 12514 6k8 5% 5W3465 4822 052 10109 10 5% 0.33W3480 4822 050 22703 27k 1% 0.6W3481 4822 050 24303 43k 1% 0.6W3481 4822 050 28203 82k 1% 0.6W3482 4822 050 24303 43k 1% 0.6W3482 4822 050 25603 56k 1% 0.6W3485 4822 052 10478 47 5% 0.33W3486 4822 052 11108 1 5% 0.5W3487 4822 052 11108 1 5% 0.5W3488 4822 052 10478 47 5% 0.33W3490 4822 052 10338 33 5% 0.33W3491 4822 052 11108 1 5% 0.5W3492 4822 052 11108 1 5% 0.5W3501 4822 117 12181 470 20% 0.5W3502 4822 053 21225 2M2 5% 0.5W3504 4822 117 12728 9 200V S 100R3505 4822 252 60151 SURGE PROTECT

DSP-510N-A21F A3507 4822 116 82776 223509 4822 117 11488 33k 5% 3W3510 4822 117 11488 33k 5% 3W3511 4822 117 12568 RESISTOR 7

WATT(MOX)3513 4822 117 11719 180k3514 4822 050 28204 820k 1% 0.6W3515 4822 117 12765 47 20% 3W13518 4822 116 83027 R22 5% 3W3525 4822 052 10339 33 5% 0.33W3542 4822 053 21475 4M7 5% 0.5W3552 4822 051 20332 3k3 5% 0.1W3553 4822 051 20121 120 5% 0.1W3554 4822 117 11139 1k5 1% 0.1W3571 4822 050 21504 150k 1% 0.6W3571 4822 050 21604 160k 1% 0.6W3572 4822 101 11186 470 30%LIN 0.1W3601 4822 116 90885 8k2X63602 4822 117 12168 2k2 X 63603 4822 117 12167 8k2 X 123685 4822 051 20683 68k 5% 0.1W

b

5003 4822 157 11518 5.6H 5% 2.3X3.45040 4822 157 70439 FOR MK2 AND

ANUB S.5051 4822 152 20547 IND FXD LAL04 A

0U68 PM20 A5054 4822 157 11519 1.2H 5% 2.3X3.45101 4822 157 11515 12H 5% 2.3X3.45101 4822 157 11516 15H 5% 2.3X3.45101 4822 157 11526 22H 5% 2.3X3.45205 4822 157 11517 10H 5% 2.3X3.45206 4822 157 11518 5.6H 5% 2.3X3.45206 4822 157 11524 8.2H 5% 2.3X3.45260 4822 157 11326 IF COIL 77.8mH z5260 4822 157 11514 76mH z5260 4822 157 11527 IFT COIL 91.5mH z5260 4822 157 11528 IFT COIL 77.8mH z5445 4822 146 10961 FLYBACK

TRANSFORMER5445 4822 146 10963 FLYBACK

TRANSFORMER5445 4822 146 10966 FLYBACK

TRANSFORMERPOWER

5451 4822 157 11521 33H 10% 8X105451 4822 157 71266 27H5457 4822 157 11522 LIN. CORRECTOR

COIL5457 4822 157 11546 LINEARITY

CORRECTOR COIL5461 4822 142 40351 LINE DRIVE TRAFO

-CU155463 4822 157 71405 BRIDGE COIL -CI155465 4822 140 10509 BRIDGE COIL U155470 4822 158 10728 TRANSF. 11H

5471 4822 157 11547 1000H 10% 8X105480 5322 157 51687 FXDIND A 04 39H

PM10 (UAW)5500 4822 157 11523 LINE 5mH /2A5502 4822 157 10476 DMF-2820H5502 4822 157 11538 10mH 2A5515 4822 157 11477 LAL02TB2R2J5516 4822 157 60171 HF70BTL3.5X9R5518 4822 526 10704 100mH z5520 4822 526 10704 100mH z5540 4822 157 71249 IND FXD LAL02 A

4U7 PM5 A5545 4822 146 10964 TFM SMT 130V5545 4822 157 11529 SMT LAYER WIRE5550 4822 157 60171 HF70BTL3.5X9R5551 4822 157 71401 27H5572 4822 157 60171 HF70BTL3.5X9R5573 4822 157 60171 HF70BTL3.5X9R5574 4822 157 11327 1U 20%5574 4822 157 11408 2.2H 10% 8X105603 4822 157 11524 8.2H 5% 2.3X3.45620 4822 157 11525 6.8H 5% 2.3X3.4

d

6040 5322 130 34955 BA4826112 4822 130 83757 BAS2166114 4822 130 83757 BAS2166263 4822 130 83757 BAS2166264 4822 130 83757 BAS2166265 4822 130 83757 BAS2166401 4822 130 42488 BYD33D6402 4822 130 31024 BZX79-B186403 4822 130 42488 BYD33D6421 4822 130 34258 BZX79-B566460 4822 130 41275 BY2286461 4822 130 41602 BYW95C6465 4822 130 42606 BYD33J6466 4822 130 42606 BYD33J6470 4822 130 30862 BZX79-B9V16480 4822 130 34379 BZX79-B276485 4822 130 42488 BYD33D6486 5322 130 31938 BYV27-2006487 4822 130 42488 BYD33D6488 4822 130 42488 BYD33D6490 5322 130 31938 BYV27-2006505 4822 130 10741 GBU6J6505 4822 130 11185 GBU4J6507 4822 130 42606 BYD33J6508 4822 130 42606 BYD33J6511 4822 130 41487 BYV95C6514 4822 130 31024 BZX79-B186515 4822 130 42606

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CL 86532010 001.ai 160298 ServiceManual - …diagramasde.com/diagramas/otros2/Philips+L7.3A+AA.pdfServiceManual Published by LV 9864 ... 11 List of abbreviations 46 ... Picture In