TVP10_RA-3 & RA-4A Chassis.pdf

7/24/2019 TVP10_RA-3 & RA-4A Chassis.pdf

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S

Circuit Description and Troubleshooting

Course: TVP-10

ProjectionTelevisionRA-3 & RA-4A ChassisModels: KP-43T70 KP-53N74 KP-48V80

KP-46C70 KP-52S70 KP-53V80

KP-48S70 KP-61S70 KP-61V80

KP-48S72 KP-53XBR300

KP-61XBR300


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Sony Service CompanyA Division of Sony Electronics Inc

All Rights Reserved

Printed in U.S.A.

S is a trademark of Sony Electron


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Circuit Description

and TroubleshootingModels: KP-43T70 KP-53N74

KP-46C70 KP-52S70

KP-48S70 KP-61S70

KP-48S72 KP-53XBR30KP-61XBR300

Prepared by: National Training Department

Sony Service Company

A Division of Sony Electronics Inc.

Course presented by ________________________

Date______________________________________

Student Name ______________________________


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S

SEL Service Company

A Division of Sony Electronics Inc.1 Sony Drive

Park Ridge, New Jersey 07656

TVP100100


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Introduction 1

RA-3 Features 1

RA-3 and RA-2 Similarities 2

RA-3 and RA-4 Similarities 2

RA-3 New Circuitry 2

Power Supply Protection 3

Latch 3

+135 Volt Over Voltage 3

+135 Volt Over Current Protection 3

Standby Unregulated OVP 3

Standby +5 Volt OCP 3

V Model Video Path Block 5

Switching 5

Main Processing 5

P&P Processing 5

OSD 5

YCJ 5

KP-53V80 Video Switching 7

KP-53V80 Video 4 and Video 5 Inputs 7

Composite Video and Y Switching 7

Color Switching 7

Comb Filter (V Models) 9

Table of Contents

8-Bit A/D Con

Picture an

Main Y Signa

Main C Signa

Main Decode

Picture and P

Video Pro

YUV Controlle

YCJ

On Screen

Micro OSD

V Chip/CC O

PJ OSD

CRT Drive

Tube Bias

Ik Return

S Model VSwitching

Main Process

PIP Processi

OSD

YCJ


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Switching and Comb Filter (S Models) 21

Video Inputs 21

Switching and Comb Filter 21Picture in Picture (S Model) 23Sub Y Signal 23

Sub C Signal 23

Sub Decoder, PIP Processor and YUV Switch 23

RA-4 vs. RA-4A 25

RA-4A Features 25

1080I Capable 26

RA-4 and RA-4A Circuit Differences 26

Video Path Block 27

Inputs 27

Main Video 27

Sub-Video 27

Video Processor 27

DTV Video Processing Block 29

Component Input Selected 29

RGB Inputs Selected 29

DTV Video Processing 31

Circuit Description 31

VD Mute 33

RGB Mute 33

Appendix 1

Self-Diagn

Standby P

Converter OpRegulation

Over Current

Over Voltage

Secondary O

Checking Q6

Switching

Primary Rect

Oscillator

Regulation

Soft Start

Limit

Troubleshoot

Horizontal

Horizontal Sc

High Voltage

Vertical D

Vertical Drive

Protection

Converge

Convergence

Auto Focus (A


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Sensor Amp xxv

Auto Focus xxv

Circuit Description xxixBD Input xxxi

Digital Convergence xxxi

BD Output xxxiii

IC1701 Regi Correction xxxiii

Convergence Out xxxvRegi Mute xxxv

Convergence Amp xxxv

Appendix 2 - Service Bulletins


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4

5

6

2

3

7

1

8

4

8

9

R

R664

R663

R659

R661

D672

C662

C663

R691

D674

D675MTZJ10B

D6

D

Q65

D680

D676

MTZJ-3-9BC680

R686

C679R687

C676

D667

D651

R688D664

MTZJ-2-7A

IC655BAO5T

5V REG.

I

G

O

R689

R662

R657

R654

PARTOF T602

STB

+135V

FROM

D652/AAND D653/A

STANDBY 5V

RY DRIVEFROM

Q652/C

IC651

OVP/OCP

uPC393C

-

+

-

+

+135V BRIDGE

NEG.

POWER SUPPLY PROTECTIO

R681

R660


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6

CV

C

Y

COMPONENT

Y

UV4 UV5

Y/

CV

C

MY MY

SY

SC

SUV

SY

YUV

YUV

Y

UV

V MODELS VIDEO BLOCK

SUB YUV

U BOARD

3D

COMB

FILTER

Y

SWINPUTS

UV

SWITCH

CO

SWITCHING

SUB

DECODER

Y

SW

MAIN C

UV

Y


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7

KP-53V80 Video Switching

Overview

In this section we will look at the input-switching path for the KP-53V80.This includes switching of composite, S video and component video in-

puts.

KP-53V80 Video 4 and Video 5 Inputs

The Video 4 and Video 5 inputs accept component video only. The Yinputs from Video 4 and 5 are routed to IC1702 A/V Switch. The U and V

inputs are sent to IC1703 and IC1704. These ICs switch the U and V to

either the Main or Sub UV paths. You should note here that the Pb inputis called U in the rest of circuitry and that the Pr input is called V.

Composite

Composite vidor video 1,2 o

IC1702/53. ThOut and back inputs is chossignal is then

nects to CN40video inputs isto IC1702/56.

CN1701/18.

Color SwitComposite vidThe Comb Fil

video signal. T5 to IC1702/5will be switchthrough Q172

input is selecte

passes throug

If Video 4 or V

and IC1704. TThe Pb and PrThe logic levethese switche

or sub UV circ

U BOARD

IC1702

A/V SWITCHCXA 1845

15

14

16

21

22

PB

PR

L

R

Y

PB

PR

L

R

Y

J1703

J1704

TO IC1703 + IC1704

YUV SWITCH

Y4

L4

R4

Y5

L5

R5

KP53V80 VIDEO 4 AND 5 INPUTS

VIDEO 4

IN

VIDEO 5IN

AUDIO

AUDIO

20


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10

MAIN V/Y

MAIN C

18

6

24

4

11

12

10

16

Q201,204

INVERTER 76

60

59

61

75

Q228BUFFER

Q226,227PEEKING

Q1403

BUFFER

50 8

5

2220

17

13

67

74

28

13

TO IC1402/32

MAIN DECODER/C IN

TO IC206/64

YCJ/C IN

FROM U

BOARD

CN1701

CN401

SDA

SCL

SDA

SCL

VIN

DB1

DB8

CLK

PCL

ALTE

STO

CSI

IC203

A/D

CONVERTER

uPC659

DYC02

DYC0

9

MIO

0

MIO

15

FSCOUT

FROM

IC206/57YCJ

KILLER

FROM

IC002/30

CN201

FSC1

COMB FILTER (V MODELS)

Q210

BUFFER

Q206,212

BUFFER

FL203,

Q215,

216

B.P.F

FL201,Q

B.P

Q209BUF

COMB C

TO CN1703

U BOARD

A BOARD


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14

VIDEO PROCESSING (V MODE

7

8

64

23

19

13

18

6

8

9

Q1424

TV BUFFER

P-YDY FROM IC1405/86

Q1403 SYNC

BUFFER

P+P/DFB FROM

IC1405/ 93

Q1414, 1416

LEVEL SHIFT

63

55

12

5

4

3

10 10

TO

V CHIP

BGP

SDA

SCL

SDA

SCL

PB-Y

PR-Y

DVD B-Y

MAIN C

FROM IC1702/58

DU FROM IC1405/90

DV FROM IC1405/88

MAIN U FROMCN401/3

MAIN V FROM

CN401/1

MAIN Y FROM

Q1402

MAIN Y SW.

FROM IC1409/7

FULL DVD

FROM IC1409/1

COLOR FROM

IC1409/5

HUE FROM IC1409/6

DVD R-Y

DVD Y

TV IN

DL YSW

YSW

COLOR

HUE

YOUT

RYOUT

BYOUT

TVOUT

CLAMP

EY I

ERY

EBY

C IN

Y IN

CIC1407

YUV CONT.

CXA2039

16

17

Q1418

BUFFER 1

Q1420

BUFFER3

Q1419

BUFFER2

22

21

Q1422

YUVSW

59

X202Y


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16

Q1061

BUFFER

Q1601

BUFFER

17

7

18

2

3

IC1601

MAIN VCHIP/CC

28622912SSC

QQ013

Q012

Q021 Q023

Q022

Q020 Q018

Q019

RE-RRE-GRE-B

RE-YM

RE-YS

Y

FROM

Q1402MAIN Y

BUFFERVIDEO

R

G

B

BOX

1514

SDASCL

PJ OSDFROM ABOARD

PJEDBLOCK

OSD (ALL MODELS)

MICRO R FROM IC002/32

MICRO G FROM IC002/33

MICRO B FROM IC002/34

MICRO I FROM IC002/35

OSD YS FROM IC002/36

DISP YM FROMIC002/37

SCL

SDA


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18

7

1

3

1

D736

SG732

Q733

R741

R742

L731

R736R739

+200V

D732

C735

CN731

FROM

A BD.CN204

R736

C734

R737R746

Q734

R747

D735

R743

CN732

IkRIkB

9V

C737

CRT DRIVE (CG)

1

R733Q731

R735

CLK

C733

D731

Q722

D733 D734

CN733

G

IK


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20

MAIN

VCHIP

PJED

COMB

FILTER

CV

C

Y

SWITCHING

MONITOR OUT

CV

C

MC

RGB

RGB

CYUV

SW

YUV YUV YUV YUV

SUB DECODER

PIP

UV COMPONENTY

SC SY

M H SYNC

MY

Y

S MODELS VIDEO BLOCK

INPUTS

SUB UV

YUV SW


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22

SWITCHING AND COMB FILTER (S M

8

1

15

41

10

3

17 45

12

43

37

58

Q1102

BUFFER

56

MAIN V

OUT

YOUT2

YIN2

CIN2

COUT2

SYOUT

SCOUT

MTV V

V1

V2

V3

STV V6

Y1

Y2

Y3

Y4

C1

C2

C3

IC1101AV SWITCH

CXA2079Q

TO IC1903/1YUV SWITCH/DAND IC1602SUB V CHIP

FSC OUT FROM IC206/57

TO J1105 MONITOR OUT

YUV MUTE FROM Q1110

FROM MAIN TUNER

FROM J1102

FROM CN1702/5

FROM J1101

FROM SUB TUNER

S VIDEO

INPUTS

Q1701, FL

Q1702, Q

Q1103, 1104

BUFFER

15

19

60

24

39

63

COMPONENT Y

S VIDEOINPUTS

34

35

SDA

SCL

23


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23

Picture in Picture (S Model)

Overview

The PIP circuit is capable of taking any of the three types of inputs andcompressing them. The compressed output is sent to the YCJ to be

placed into the main picture. Only the sub input signals are needed for Smodels, unlike the V models which required sub and main picture inputs.The component video input can also be processed here for display as a

child picture.

Sub Y Signal

The sub Y signal from IC1101 A/V Switch is split to three different places.They are:

Through Q1914 Y Buffer for component when a component input isselected for the main or sub picture.

IC1602 Sub V Chip to determine if the child picture should be dis-played in the PIP window.

IC1902 Sub Decoder to decode the Y and C signals. Y is also usedfor H and V sync.

Sub Decod

IC1902 Sub Dand C signals

tively.

These signalsset of YUV sig

The Sub U anJ1106. IC190is a D/A Conv

receives. Thisture. The selIC1905/28, 30

IC1905 is the nals. It then cYUV at pins 8Decoder at pin

tal circuit and trol signals, Mcreate a gray

tions. The SEController.Sub C Signal

The Sub C signal is input through Q1906 Buffer to IC1902/32 C In. This

signal will be decoded to its component form.


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28

IC515

A/V SWITCH

TU501

MAIN

TUNER

TU502

SUB

TUNER

COMPOSITE

AND S VIDEO1 - 4

CM501

GLASS

COMB

SUB

Y

C

IC1301

SUBCHROMA

DECODER

IC14

SUB

CH

SUB C

YUVIC1302

YUV SWPIP OSD

MIX

SUB Y

SUB Y

MAIN Y/COMP

MAINC

IC1305

MAIN

CHROMA

DECODER

C

YUV

IC1008

MAIN

CPU

IC2402

3D COMB

FILTER

MAIN Y

MAIN Y

CCD + V CHIP OSD

Y FOR V CH

VIDEO 5

DTV

INPUT

Y

R

VIDEO 4

COMPONENT

RA-4A VIDEO PATH BLOCK

BA BOARD


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30

V4

YUVINPUT

IC1403

MAIN YUVSELECT

IC1307

MAIN YUVSW

IC1008

MAIN CPU

DTV

SYNC

V5

DTV

INPUT

IC511

VIDEO PROCESSOR

YUV

TO IC515

FOR AUDIO

SWITCHING

IVP

ODTV

VIN

DTV VIDEO PROCESSING BLO

YUV

Y


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32

IC511VIDEO PROCESSOR

CXA2101AQ

5

4

3

76

77

78

75

74

73

35

37

39

SELYOUTIN2V

IN2CB

IN2CR

SELCBOUT

SELCROUT

SELYIN

SELCBIN

SELCRIN

ROUT

GOUT

BOUT

FROM

DTVIN

J501

Y/G

PB/B

PR/R

DTV VIDEO PROCESSING

BUFFER

Q1308, 1309

IC1307MAIN YUV SW

CXA2119

7

6

5

IC1403MAIN YUV

SELECTMC14053BF

3

1

13

4

15

14

9 10 11 25

J503 YUV4

INPUT5 2 12

Q1420

O DTV

FROMOC1008/3


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34

2

9

15

7

111

3

4

5

6

2

12

1

3

4

5

6

9

1 7

HBLK (HP)

FROM

CN509/9

VDSP/VTMVBLK

FROM

IC512/36

OSD-CPU

O VCOMP

FROM

IC1009/59

CLR

LOAD

/CLR

IC1609

TC74HC1

63AFBLK

PULSE

CHANGE

RCO

ENT

ENP

CLR

LOAD

Q2

IC1608

TC74HC

163AF

BLK

PULSE

CHANGE

DEF

5V

10

10

Q16

V SAW

AMP OUT

FROM

IC514/1

VD MUTE

ENP

A

B

C

D

A

B

D

C

IC1623

/CLR

R1678

DEFLECT

7

11Q3

IC


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APPENDIX 1

i

S lf Di tiThe number o


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Self-Diagnostics

Overview

The RA-4 chassis employs a Self-Diagnostic system that uses the TimerLED and an on screen menu to help indicate where the problem with theset has occurred. You will generally have to use the flashing LEDs since

the set will be shut down. AC power must be disconnected in order to turnthe set off once shutdown has occurred.

When a failure occurs, all of the circuits covered by the Self-Diagnostics,except AKB, send a signal to the OSD CPU. The OSD CPU sends data

to the Main CPU that indicates how many times the Timer LED will flash.The AKB circuit located in the Video Processor IC sends data over theI2C bus directly to the Main CPU. In addition, each circuit, except AKB

and High Voltage, send a signal to the latch circuit to shut the set downwhen failure occurs.

EXAMPLE

+B overcurrent

+B overvoltage

Vertical deflection stop

< FRONT PANEL >

TIMER/STANDBY indicator

following table

2 times3 times

4 times

Lamp OFF :3.0 seconds

Lamp ON : 0.3 seconds

Lamp OFF : 0.3 seconds

If the problemdisplay a menis done by pre

Display Chan

The display w

SELF CHECK

2 : +B OCP 3 : +B OVP 4 : V STOP 5 : AKB 6 : H STOP 7 : HV 8 : AUDIO 9 : WDT

*: XX the range oand the number

Diagnosis Item

Power not ON+B OCP detectio+B OVP detectioV detectionAKB detectionH detectionHV abnormality dAudio abnormalitWDT (Syscon)


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ii


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iv

FB621

D621

D622FROMT601/1

AC HiSIDE

R639

4.7 OHMS

R640 C631

D623

Q6212SK2845

R635

C634

C629

R637FROMR623&R664 AC

Lo SIDE

R631

R636

Q622PROT. C699

C630 R632

D698

D624

D699

MTZ-T-77

-15 .

R633

R634

D626RD6.2ESB2

C635

R638

C633

D62

C6

STANDBY SUPPLY

D

D625

S

v

Over Current Protection (OCP) Secondary


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Monitoring the voltage across R637 is used for over current protection.This voltage is representative of the amount of current flowing through

Q621 Converter since it is in series with the transistor. If this voltage

should rise to .6 volts, it will cause Q622 to turn ON. If Q622 were to turnON, it would shunt Q621/G voltage to ground. This would cause Q621Converter to stop conducting.

Over Voltage Protection (OVP)

Over voltage protection is done by rectifying the voltage at T621/6 withD627. This voltage is filtered by C636 and applied to D626 through R638.If this voltage should rise above 6.2 volts, D626 begins to conduct. When

its conduction allows Q622 Protect to turn ON, over voltage protection isemployed. Q622 Protect turns ON and grounds Q621/G, which stops theconverter from switching.

D699 is also used for OVP. The signal from T621/4 is rectified by D698.This creates a negative voltage across C699. If this negative voltagebecomes great enough, D699 conducts and the Q621/G voltage is broughtlower.

The power cowhen rectified

constant due

This 7.2 volts tion by the reg

It is also applievolts. This 5 vpowers the Tu

Power Relay.

Checking

Testing a MOto each other presence of a

To prove the d

1. Connect th

2. Touch the3. Connect t

good you wSome DVMs d

diode check mmode, a low v


48/101

vi

FB621

D621

D622FROMT601/1

AC HiSIDE

R639

4.7 OHMS

R640 C631

D623

Q6212SK2845

R635

C634

C629

R637FROMR623&R664 AC

Lo SIDE

R631

R636

Q622PROT. C699

C630 R632

D698

D624

D699

MTZ-T-77

-15 .

R633

R634

D626RD6.2ESB2

C635

R638

C633

D62

C6

STANDBY SUPPLY

D

D625

S

vii

Switching Power Supply -Primary Rectifier

Start Up

The current path for initial start-up of the os


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When the set is turned ON System Control IC001/62 places a high onthe base of Q652 Relay Drive. Q652 turns ON and provides the groundreturn path for Power Relay RY601. With the relay closed, AC is ap-plied to a voltage doubler circuit comprised of bridge rectifier, D602 and

two capacitors, C607 and C608. This produces 300V at R608 withrespect to Hot Ground.

IC601

The switching transistors in previous power supply circuits have beenreplaced by an IC in this chassis. Basically this IC is two transistorsfabricated on the same piece of silicon. This gives us the advantage ofhaving the gain and other electrical characteristics matched. In additionthere is a zener diode and a regular diode across the base emitter

junction for protection purposes.

OscillatorIC601-1, C615, C618 and the winding between T604/4 and 5 form onesection of the oscillator for the switching regulator. IC601-2, C616, C617and the winding on T604 between pins 2 and 3 form the other leg. T604is the Power Regulating Transformer (PRT). The arrangement of thecircuit can be considered a Dual Tank Oscillator. The operating fre-quency is determined by the two LC circuits: C618, and the T604 wind-ing between pins 4 and 5; C617, and theT604 winding between pins 2and 3. IC601-1 and IC601-2 share in producing the oscillator signal.IC601-2 is ON during the positive half, and IC601-1 is ON during the

negative half. The oscillator frequency is 97kHz when the TV producesa white raster, and at 103kHz with a black raster.

The current path for initial start up of the osthrough the winding of pins 2 and 1 of T604of T605 and then through C621. When currmagnetic field is created in the windings of grow until C621 is fully charged. After C621

netic fields begin to collapse. This induces turns OFF IC601-2 through C616 and R613voltage is induced at T604/4 that turns IC60provides a discharge path for C621. Once Cthe whole cycle to repeat itself.

As the circuit oscillates it produces a 300VpTransformer T605/6. This waveform is indwindings of the T605, producing all of the s

Regulation

The power supply is regulated by the contro8, in the following manner:

An increase in voltage across the control wtance of T604 therefore increasing the oscoscillator frequency increases it moves furtfrequency of T605, reducing the voltage at opposite occurs when the voltage across p

A correction voltage is produced by IC651/4proportional to the 135V line. Pin 8 of the trconnected to the correction voltage The oth

(pin 7) is connected to the +18V line by D6across the control winding causes a dc curwinding.


50/101

viii

ix

Switching Power SupplyRegulation (contd)

As soon as a secondary voltage is producecauses the voltage at the positive capacitorQ654 to decrease conduction, less dc curreformer control winding; the oscillator freque


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The frequency of the power supply is dependent on the load that it sees.When the picture brightness increases the load increases which lowersthe voltage across T604/7 and 8. When this occurs the frequency of theoscillator decreases which allows T605 to supply more current to the

secondary windings which keeps the 135V line from lowering in voltage.Since the 135V line is the only one regulated there will be about a +/-5% variation in the other supply voltages.

The following chart shows what occurs with different loads on thesupply. Note that the oscillator frequency changes but the 135V lineremains constant.

Location White Raster No Input

V across pins 7+8/T604 2.58V 2.73V

Freq. ,at IC601/E2 97Khz 103KhzV at CN653 135V 135V

Soft Start

The soft start circuit prevents discharged capacitors on the secondarylines from drawing excessive current during power start up and short-ing the oscillator transistors. The soft start circuit brings the secondaryvoltages up slowly.

At power ON, C666, which is discharged, has a 0V potential at its +terminal. This biases Q654 ON, via R696. With this transistor ON, it

allows standby 12V from Q651/E to be applied across pins 7 and 8 ofT604. This increases the oscillator frequency and reduces efficiency.Therefore, the start up secondary voltages will be reduced considerably.The Standby 12V is switched through Q651 when Q652 Relay Driveturns ON.

former control winding; the oscillator frequesecondary voltage increases further.

C666 continues to charge and the secondauntil the capacitor charges to the point that

same as Q654/E, at this point the transistoIC651 to control the regulation process.

Limit

Limit transistor has two functions:

It acts as a non latching voltage limiter.

It is a soft start reset. It discharges C66OFF, preparing it for the next turn ON.

Voltage Limiter

Zener D664 is a 24V zener that is connecte18V line. During normal operation, the potelower than the zener voltage. Therefore, thesupply a base voltage to Q656 therefore Q6defect cause the 18V line to rise above 24Vand applies bias to Q656/B, turning it ON. Tvoltage across the transformer control windto 3.7V) and the oscillator frequency increadecrease in transformer efficiency and a dr

Soft Start Reset

Relay RY601 is powered by 12V produced and the relay is turned ON by Q652.

Q652 is OFF when the unit is turned OFF. Tpath from the relay, opening it up. It also alto flow through the relay coil, through R693transistor ON, and discharges C666.


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x


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xii

xiii


55/101

L601

T605/1

T604/1

IC651

CN653/1

IC655

RY601

T603/1

3 4

Hot Ground


56/101

xv

Horizontal DeflectionOverview

The horizontal deflection circuit has two main functions:

T501 induces a 12 vp-p signal onto its secothe base of Q502 Horizontal Output. (See W

Q502 and associated components amplify that 1000 vp-p spikes are output and applieTransformer T504


57/101

Control horizontal scanning of the CRT beams.

Along with the flyback transformer create high voltage for the picturetubes.

Horizontal Scanning

There are 3 circuits used to control Horizontal beam scan:

Horizontal Drive

Pincushion

Centering

Horizontal Drive

When +9V line is applied to the Y/C Jungle IC301 X304 begins tooscillate. This is a 32fh signal that is used as a reference for the hori-zontal oscillator inside the Y/C Jungle. When the Y/C Jungle IC confirmscommunication with System Control IC001 it begins to output 8vp-phorizontal drive pulses at pin 35. (See Waveform A)

These pulses are input to the base of Q501 and then a 90 vp-p signal isoutput at the collector and applied to T501 the Horizontal Drive Trans-former. (See Waveform B)

Transformer T504.

Also a sample of this pulse is sent back to tHoff. This pulse is compared to the referen

correction of the horizontal oscillator. The HSystem Control for OSD positioning and ICWaveform D)

Pincushion

The purpose of the pincushion circuit is to ction. This distortion occurs because of the linear beam scan. The result would be a picand bottom. We compensate for this problecorrection circuits. Pincushion correction foset is described below.

Pincushion correction is achieved by modu

current with a vertical parabola. The resultzontal scan current to be least at the top of increase to maximum as the beam reachesscreen. As the beam continues to move towscreen, the horizontal scan current gradualraster with straight sides.

A2v

5ms

B1v

50us

C1v5ms


58/101

xvi

xvii

In the RA-2 chassis a vertical parabola signal is output from IC301/31 toIC501/9. (See Waveform A)

At IC501 H pulses at pin 8 are pulse width modulated by the verticalparabola signal at pin 9. The result is output to and amplified by Q505.

High Voltage Development

High voltage is developed by taking the horplying them to the Flyback Transformer T5T504 steps up the horizontal pulses and r31Kv at its output This voltage goes to the


59/101

When the above signal (Waveform B) is applied to T502 PMT andT503 HLT it controls the return path of the horizontal yokes by inducinga voltage that causes more or less current to flow in accordance withthe waveform. This keeps the sides of the picture straight.

Centering

It should be noted here that centering of the horizontal yokes is done byusing one of the secondary coils of FBT T504 and attaching its centertap to the return of the Green yoke. The other windings are connectedthrough rectifiers to the other yokes. Horizontal centering is necessarybecause the red and blue tubes are at opposite angles to the screen inreference to the green tube which is straight. Therefore by applying DCvoltages of opposite polarities with reference to the center tap we arecentering red and blue to green. If you place the negative lead of your

DVM to pin 8 of T504 FBT and the positive lead on D514 Cathode orD515 anode you should read +4V and -4V respectively.

A

2v5ms

B

1v5ms

31Kv at its output. This voltage goes to thedistributed to the three picture tubes.

This is where the RA-2 chassis differs from

television sets. This chassis has no high volthave been various steps taken to compens


60/101

xvii

xix

CN503


61/101

CN502

CN503

CN504

Q505

CN653

Q501Q502

TVP)&


62/101

xx

T501/1

T502/1Q505

L505/1

CN504/1CN502/1

T504

CN503/1

Q502

Q501

TVP07G

xxi

VERTICAL DEFLECTION

Vertical Drive

IC301 Y/C Jungle contains a vertical oscillator whose frequency is deter-mined by C323 which is connected to IC301/33. This oscillator is used to

Protection

Since a loss of vertical deflection will damagvided in the event of deflection loss. Since Y/C Jungle we need another way to blank thtion. Since the VP pulse does go back to Sy


63/101

mined by C323 which is connected to IC301/33. This oscillator is used tocreate the drive signal for vertical deflection. It free-runs at approximately60Hz to maintain a raster under no signal conditions. When a video signal

is present it is locked to the videos vertical sync pulse which is input atIC301/43.

IC301 Y/C Jungle uses the vertical oscillator to generate two vertical drivesignals which are output at pins 29 and 30. These signals are sawtoothwaves and are 180 degrees out of phase. They are shown in Figures 1and 2. These signals are then input to IC1501 V Out where they are am-plified and output to the vertical yokes. You also notice that IC301 pins 29and 30 are input to the Vertical Zooming Amp IC1502. There they aremultiplied with a sample of the ABL signal. This is done to compensate forvertical size changes due to lack of high voltage regulation. The outputs

from IC1502 are then summed with the vertical drive signals at VerticalOutput IC1501/1 and 7. The vertical drive signal output from pin 5 is about55Vp-p. This is possible because IC1501 contains a voltage boost circuit.IC1501/3 is used as a flyback supply and boost the positive supply on theoutput to 45V. A sample of this pulse is used to create VP. The outputsignal swings from -10V to 45V. The vertical drive signal is then sentthrough L1501 to the three deflection coils via CN1501.The coils are con-nected in series. The return path to ground for the signal is through TH1501,R1501 and R1518. The return signal also applies negative feedback tothe input via C1524, C1502 and R1506.

data timing this line is used. When the VP the data and clock signals between System

are incorrect. Any time there is no commutween System Control IC001 and the Y/C Jcycles the power relay line pin 62 OFF and Ocauses loss of Vertical deflection will causeOFF and ON.


64/101

xxii


65/101


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xxiv

xxv

Sensor Amp

Overview

When Auto Fo

cession over sensor and Pa


67/101

Overview

The sensor amplifier is used when the customer or servicer presses theAuto Focus button. It amplifies the signal from the sensors and outputs

the signal to the D/A converter on the BD board.

Auto Focus

The Auto Focus system works by adjusting centering and skew conver-gence data to receive a memorized optimum level. The servicer can set

this level by performing the Auto Focus function in the Service Mode.This means that the system does not pick a new optimum value when the

customer uses it but rather changes centering and skew adjustment datato get an optimum sensor reading. The drawing below shows the position

of the sensors around the screen.

5

3

0

2

7

4

1

6

SCREEN

0 : UPPER SENSOR

1 : LEFT SENSOR

2 : RIGHT SENSOR

3 : LOWER SENSOR

4 : UL SENSOR

5 : UR SENSOR

6 : LL SENSOR

7 : LR SENSOR

P

[ O

1.

Varying the input to the convergence amplifiers changes the pattern. The

table below shows that the A and B patterns are output while the conver-gence data is changed. The changing of this data changes the conver-gence amplifiers input. The X axis shows the changing of the conver-


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xxvi

gence amplifiers input. The X axis shows the changing of the convergence data and the Y axis shows the value of the data output by the

sensor amplifier. The optimum value of the data is shown where thecurves cross. This data is memorized if the Auto Focus button is pressedin the Service Mode. When the customer uses the Auto Focus button thesystem will change the convergence data to receive the optimum value at

the A/D converter.

2501000

900

800

700

600

500

400

300

200

100

00 10 20 30 40 50 60

200

150

100

50

0

A

A

A + B

B

0.5mm

BV CENT

mesratio

A/Dd

ata

mes_data0

mes_data1mes_rati

xxvii

The flowchart on the previous page shows the sequence of operations for

the Auto Focus operation. The first operation is to set the initial settings.Then the H size is changed. This is done because the sensors are out-side of the screen. After the H size is enlarged, a dark current measure-

The flowchart

portion of the the convergeneach color. Th


69/101

g ,ment is performed. This means that a reading of the sensors is taken

with output from the tube in order to establish a room brightness offset.This measurement is subtracted from the readings taken later. After theV centering and skew adjustments are performed for each color, the Hsize is returned to normal and the V size is enlarged. A dark current

measurement is taken again and then H centering and skew adjustmentsare done. When these adjustments are complete, V size is returned tonormal. If an error occurred, the process will be repeated. If the error is

returned a second time then an error code is given.

START

YES

YES

YES

NO

NO

NO

END

Measure 2V+2V

ROUGHSTEP

ADJUST

CENTFINE STEP

ADJUST

SKEWFINE STEP

ADJUST

Measure 4V+4V

Measure 4V+4V

Did CENT & SKEWmeasurement exceed

center point?

4STEP change in CENT,SKEW

Did CENT measurementexceed center point?

1STEP change in CENT

Did SKEW measurementexceed center point?

1STEP change in SKEW

value is meas

the next step. second time th

The error syst

occurs while rdisplayed immthe error whentype of error th

for blue.

* Error cod

The following table shows the errors that may occur. You should note here that if the green

placed so there is no tilt. If it is not placed correctly, a repetitive 80 can occur.


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xxviii

* 60, 70 or 80 appears only in Service Mode.

* In case of multiple error, last error is displayed.

(EXAMPLE)

11B :Left sensor Blue level low. (Left sensor circuit may be faulty.)61R : RED CENT H offset overflow. ( PWM2 may be required adj

00 No Error

10 Sensor Output Level Low * Check wiring, beam positio

20 Sensor Output Level High * Check OP-amp circuit.

30 Adjustment Loop Counter Overflow 0 : CENT V

1 : CENT H

2 : SKEW V

3 : SKEW H

40 Regi Data Overflow Same as Loop Counter Overf

50 Regi Data Overflow Same as Loop Counter Overf

60 Offset Overflow Same as Loop Counter Overf

* Check beam position. If ne

V CENT (main) for V err

* PWM2 is usually 34 or

70 Offset Overdrow Same as Counter Overflow

* Check beam position. If ne

V CENT (main) for V err

80 Green V SKEW too tilt * Adjust Green beam righ or

ERRORDISCRIPTIONCODE

[ERROR CODE LIST]

xxix

Circuit Description

The sensor amplifier is responsible for taking the amount of light receivedby the sensors and outputting a DC value to the PJED CPU to represent

the amount of light received The optimal value achieved is memorized

4


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the amount of light received. The optimal value achieved is memorizedduring the Auto Focus function in the Service Mode.

As the patterns of flashing light are seen on the screen, the outputs of the

sensors are input to the A board at CN524, CN525 and CN501. Thesesensors are applied to IC1601 and IC1604. These ICs are current tovoltage converters. They are required because the sensors output a cur-

rent proportional to the amount of light they receive.

The outputs from IC1601 and IC1604 are output to peak hold circuits.These circuits consist of IC1605 and IC1606 and buffer transistors Q1609

through Q1616. To ensure precise measurements, each sensor also hasits own reset line that grounds the peak hold circuit every vertical blankingpulse. The top, left, right and bottom sensorsoutputs are applied directlyto the BD board. The four corner sensors are applied to a switch. The

switch is necessary because the PJED CPU only has six A/D inputs. Sincewe do not need to use the corner left and right sensors at the same time,they are switched. Pulses from CN1701/12 from the BD board are re-sponsible for switching the sensors. The two sensors selected then have

their outputs applied to the PJED CPU.

1

6

The picture ab

are the formul

V Center = 1+

V Skew = 1-2

H Center = 0+

H Skew = 0-3+


72/101

xxx


73/101


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xxxii

xxxiii

BD Output

Overview

The Green Ve

The analog sigcombined andthe GV signal

Th G H


75/101

The BD Output takes the digital outputs from IC1707 Regi Correction andconverts them to analog signals which are then output from the BD boardto the Convergence Amps on the D board. (Not shown)

IC1707 Regi Correction

IC1707 Regi Correction receives sync and data signals that allow it tooutput the correct waveforms to control the convergence of the three tubes.These signals are output in digital format along with BCLK (Bit Clock) andWCLK (Word Clock). The HBLK is output from IC1707/26 for use as a

compensation signal for blue to reduce corner distortions. There are sixdigital data streams output from IC1707 Regi Correction to the D/A Con-verters.

The Red Vertical Output is input to IC719/14 RSI and IC715/14 RSI. Theanalog signals are output from pin 6 of each of these ICs. They arecombined and input to IC1705/2. IC1705 is a filter amplifier which will

output the RV signal to CN523 on the A board.

The Red Horizontal Output is input to IC719/15 LSI and IC713/14 RSI.The analog signals are output from IC719/11 and IC713/6, combined andinput to IC1702/2. IC1702 is a filter amplifier outputs the RH signal to

CN523 on the A board.

The Green Ho

The analog sicombined andthe GH signal

The Blue Vertanalog signalsnals differ bec

IC1721. The problems. The

2. IC1710 is aA board.

The Blue HoriThe analog siand input to IC

signal to CN52


76/101

xxxiv

xxxv

Convergence Out

Overview

Convergen

IC5005 Conve

plifiers containput If we look


77/101

The Convergence Out circuit amplifies the horizontal and vertical conver-gence signals that are output by the BD Output circuit for each color. Thecircuit below shows the IC5005 Convergence Amp. IC5006 is another

Convergence Amp. It is not shown here because its circuitry is identicalto the IC5005 circuit.

Regi Mute

When the set is first turned ON, a Regi Mute signal is required becausethe BD board outputs a High signal from the six convergence outputs for

three seconds. If all Highs were output from the BD board simultaneously,it would probably result in a problem on the +/- 22 volt lines.

When the set is initially turned on, a LOW is output from the BD board to

the A board. The A board transfers this LOW through CN5011/8 to the Dboard. This LOW is applied to the base of Q5024, keeping it OFF. IfQ5024 is OFF, then Q5025 and Q5027 are also OFF. This causes IC5005/

12 and 13 Mute to be 0 volts. This will mute IC5005 and it will not output

any signals. After three seconds the Regi Mute output will go HIGH. Thiscauses Q5024 to turn ON. This will cause Q5025 and Q5027 to turn ON.This places 19 volts on IC5005/12 and 13 which enables the outputs of

IC5005.

put. If we look

green signal iIC5005/22 thrpasses througR5017. The odescribed abo


78/101

xxxvi


79/101

APPENDIX 2

Model:KP-43T70, KP-46C70, KP-48S70, KP-48S72, KP-48V80, KP-53N74,KP-53S70, KP-53V80, KP-61S70, KP-61V80 No. 430

csv-1

Sony Service CompanyNational Technical ServicesA Division of Sony Electronics Inc.


CONFIDENTIALService BulletinTV Products

SONY


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i

Subject: Dark Screen, Picture Is Barely Visible. Date: December 3, 1999

Symptom:(1321) The screen is extremely dark and the picture is barely visible. This symptom may be

caused by a defective Q801.

Solution: If the problem is caused by a defective Q801 replace it with a new type and changethe value of R830, R849, R850, and R851 as shown in the following table.

REF FORMER NEW

DESCRIPTION PART NUMBER DESCRIPTION PART NUMBER

Q801 TRANSISTOR,2SD601A

8-729-422-26 TRANSISTOR,DTC144EKA

8-729-027-59

R830 RESISTOR,100 OHM, CHIP

1-216-025-91 RESISTOR,470 OHM, CHIP

1-216-041-91



1-216-041-91



1-216-041-91



1-216-041-91

See next page for A-board component mounting locations.

Reference: F. Medeiros PRINTED IN USA


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ii

Q801

R830

R849

R851

R850

KP-43T70 Service Manual Page 83.KP-48V80 Service Manual Page 88.

A-board Mounting Diagram

Coordinates J-2.

IC805

Model: KP-43T70, KP-46C70, KP-48S70, KP-48S72KP-53N74, KP-53S70, KP-48V80, KP-53V80

No. 440R1

CSV-1Sony Service CompanyNational Technical ServicesA Division of Sony Electronics Inc.



SONY


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iii

KP-61S70, KP-61V80, KP-53XBR200KP-61XBR200, KP-53XBR300

Subject: Up Date of the NVM Jig Instruction ManualChassis List

Date: January 5, 2000

Symptom:(XXXX) If the need should arise that a circuit board needs to be replaced, It might contain an EEPROM. Ifthe EEPROM data is not written into the EEPROM of the replacement board all the service or customeradjustments will be lost.

Example: Convergence adjustments. This will then require additional time to re-converge a projection TV.

DATA information retrieval is especially important for the models covered in the SAYS program, sincethe turn around time is of the utmost importance.

Solution: Please refer to the list below for the EEPROM used in the different chassis. Alsorefer to the NVM Instruction Manual for operating instructions.

Rear ProjectionModels

Model ChassisType

CPUBoard

CPU Ref. # CPU Reset pin#

EEPROMIC Ref. #

DIPSwitch

#1

DIPSwitch

#2

DIPSwitch

#3

DIPSwitch #4

KWP-65HD1 DR-1 A IC1008 9 IC5703 ON OFF OFF OFF

DR-1 A IC1008 9 IC1007 ON OFF OFF OFF

DR-1 BD IC1703 9 IC1704 ON OFF OFF OFF

DR-1 BM IC009 9 IC005 ON OFF OFF OFF

KP41T15 RA-1 M IC002 36 IC003 * OFF OFF OFF OFF

KP41T25 RA-1 M IC002 36 IC003 * OFF OFF OFF OFF

KP46S15 RA-1 M IC002 36 IC003 * OFF OFF OFF OFF



KP46V25 RA-1 M IC002 36 IC003 * OFF OFF OFF OFF






Model ChassisType

CPUBoard

CPU Ref. # CPU Reset pin#

EEPROMIC Ref. #

DIPSwitch

#1

DIPSwitch

#2

DIPSwitch

#3

DIPSwitch #4

KP53V35 RA1 M IC002 36 IC003 * OFF OFF OFF OFF

KP53XBR45 RA-1 AB IC7001 36 IC7003 OFF OFF OFF OFF

RA-1 M IC3000 36 IC3002 OFF OFF OFF OFF

RA-1 X Not applicable Not applicable IC5004 OFF OFF ON ON



KP61XBR48 RA-1 AB IC7001 36 IC7003 OFF OFF OFF OFF


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iv

RA-1 M IC3000 36 IC3002 OFF OFF OFF OFFRA-1 X Not applicable Not applicable IC5004 OFF OFF ON ON

KP46C36 RA-2 A IC001 15 IC007 OFF OFF OFF OFF

KP41T35 RA-2 A IC001 15 IC007 OFF OFF OFF OFF

KP41T65 RA-2 A IC001 15 IC007 OFF OFF OFF OFF

KP46C65 RA-2 A IC001 15 IC007 OFF OFF OFF OFF

KP48S35 RA-2 A IC001 15 IC007 OFF OFF OFF OFF


KP48V45 RA-2 A IC001 15 IC007 OFF OFF OFF OFF


KP53S65 RA-2 A IC001 15 IC007 OFF OFF OFF OFFKP53V45 RA-2 A IC001 15 IC007 OFF OFF OFF OFF



KP61V45 RA-2 A IC001 15 IC007 OFF OFF OFF OFF

KP48V75 RA-2A A IC001 15 IC007 OFF OFF OFF OFF



KP43T70 RA-3 A IC002 12 (I OSC) IC004 OFF OFF OFF OFF

RA-3 A IC805 55 (WR PROT) IC810 ON OFF ON ON

KP46C70 RA-3 A IC002 12 (I OSC) IC004 OFF OFF OFF OFFRA-3 A IC805 55 (WR PROT) IC810 ON OFF ON ON

KP48S70 RA-3 A IC002 12 (I OSC) IC004 OFF OFF OFF OFF




KP53N74 RA-3 A IC002 12 (I OSC) IC004 OFF OFF OFF OFF




KP48V80 RA-3 A IC002 12 (I OSC) IC004 OFF OFF OFF OFF


KP53V80 RA-3 A IC002 12 (I OSC) IC004 OFF OFF OFF OFF



84/101

Direct ViewModels

Model ChassisType

CPUBoard

CPURef. #

CPU Resetpin #

EEPROMIC Ref. #

DIPSwitch

#1

DIPSwitch

#2

DIPSwitch

#3

DIPSwitch

#4

KV27S10 AA-1 M IC101 36 IC102 OFF OFF OFF OFF


KV27TS29 AA-1 M IC101 36 IC102 OFF OFF OFF OFF


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vi

KV27TS32 AA-1 M IC101 36 IC102 OFF OFF OFF OFFKV27TS36 AA-1 M IC101 36 IC102 OFF OFF OFF OFF

KV27TW28 AA-1 M IC101 36 IC102 OFF OFF OFF OFF



KV27V10 AA-1 M IC101 36 IC102 OFF OFF OFF OFF



KV27XBR37 AA-1 M IC101 36 IC102 OFF OFF OFF OFF



KV32S15 AA-1 M IC101 36 IC102 OFF OFF OFF OFFKV32S16 AA-1 M IC101 36 IC102 OFF OFF OFF OFF









KV32XBR37 AA-1 M IC101 36 IC102 OFF OFF OFF OFF

KV27XBR45 AA-1A M IC101 36 IC102 OFF OFF OFF OFF



KV27S20 AA-2 A IC001 15 IC002 OFF OFF OFF OFF



KV27V20 AA-2 A IC001 15 IC002 OFF OFF OFF OFF




KV32S25 AA-2 A IC001 15 IC002 OFF OFF OFF OFFKV32S35 AA-2 A IC001 15 IC002 OFF OFF OFF OFF

KV32TW25 AA-2 A IC001 15 IC002 OFF OFF OFF OFF



KV3500 AA-2 A IC001 15 IC002 OFF OFF OFF OFF

Model ChassisType

CPUBoard

CPURef. #

CPU Resetpin #

EEPROMIC Ref. #

DIPSwitch

#1

DIPSwitch

#2

DIPSwitch

#3

DIPSwitch

#4

KV27FV15 AA-2W A IC001 15 IC002 OFF OFF OFF OFF

KV32FS10 AA-2W A IC001 15 IC002 OFF OFF OFF OFF

KV32FV15 AA2W A IC001 15 IC002 OFF OFF OFF OFF

KV32XBR250 AA-2W A IC001 15 IC002 OFF OFF OFF OFF





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vii

KV13TR28 BA-1 A IC101 36 IC102 OFF OFF OFF OFF



KV13V50 BA-1 A IC101 36 IC102 OFF OFF OFF OFF


KV20M10 BA-1 A IC101 36 IC102 OFF OFF OFF OFF



KV20TS29 BA-1 A IC101 36 IC102 OFF OFF OFF OFF


KV20TS32 BA-1 A IC101 36 IC102 OFF OFF OFF OFFKV20TS50 BA-1 A IC101 36 IC102 OFF OFF OFF OFF




KV20S10 BA-2 A IC101 30 IC102 OFF OFF OFF OFF


KV13M20 BA3 A IC001 30 IC003 OFF OFF OFF OFF




KV20S20 BA3 A IC001 30 IC003 OFF OFF OFF OFF

Model ChassisType

CPUBoard

CPURef. #

CPU Resetpin #

EEPROMIC Ref. #

DIPSwitch

#1

DIPSwitch

#2

DIPSwitch

#3

DIPSwitch

#4



KV32FV15 AA2W A IC001 15 IC002 OFF OFF OFF OFF





KV13TR28 BA 1 A IC101 36 IC102 OFF OFF OFF OFF


87/101

viii

KV13TR28 BA-1 A IC101 36 IC102 OFF OFF OFF OFFKV13TR28 BA-1 A IC101 36 IC102 OFF OFF OFF OFF




















KV20S20 BA3 A IC001 30 IC003 OFF OFF OFF OFFKV20S21 BA3 A IC001 30 IC003 OFF OFF OFF OFF

KV20S30 BA3 A IC001 30 IC003 OFF OFF OFF OFF

KV20V60 BA3 A IC001 30 IC003 OFF OFF OFF OFF








KV27S40 BA-4 A IC001 30 IC003 OFF OFF OFF OFFKV27S45 BA-4 A IC001 30 IC003 OFF OFF OFF OFF




Model ChassisType

CPUBoard

CPURef. #

CPU Resetpin #

EEPROMIC Ref. #

DIPSwitch

#1

DIPSwitch

#2

DIPSwitch

#3

DIPSwitch

#4


KV20FV10 BA-4C A IC001 30 IC003 OFF OFF OFF OFF

KV24FV10 BA-4C A IC001 30 IC003 OFF OFF OFF OFF

KV13M42 BA-4D A IC001 30 IC003 OFF OFF OFF OFF



KV-20M42 BA-4D A IC001 30 IC003 OFF OFF OFF OFF

KV20S42 BA 4D A IC001 30 IC003 OFF OFF OFF OFF


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ix

KV20S42 BA-4D A IC001 30 IC003 OFF OFF OFF OFFKV20S43 BA-4D A IC001 30 IC003 OFF OFF OFF OFF

KV27S42 BA-4D A IC001 30 IC003 OFF OFF OFF OFF



KV27V42 BA-4D A IC001 30 IC003 OFF OFF OFF OFF

KV27V66 BA-4D A IC001 30 IC003 OFF OFF OFF OFF

KV9PT50 BN1 A IC101 36 IC102 OFF OFF OFF OFF

KV9PT60 BN1 A IC101 36 IC102 OFF OFF OFF OFF

KV13VM40 CN-141 MA IC1701 43 IC1705 OFF OFF ON ON



KV20VS40 CN-141 MA IC1701 43 IC1705 OFF OFF ON ON

KV32XBR100 DA1 AB IC7001 36 IC7003 OFF OFF OFF OFF

DA1 M IC0001 36 IC0004 OFF OFF OFF OFF

DA1 X Notapplicabl

e

Notapplicable

IC5004 OFF OFF ON ON

KW34HD1 HA-1 B IC3251 12 IC3252 OFF OFF OFF OFF

HA-1 M & B IC3251 12 IC1304 OFF OFF OFF OFF

HA-1 V IC527 30 IC526 OFF OFF OFF OFF

KV13VM20 None MA IC501 35 IC502 OFF OFF OFF OFF






Model: KV-27FV15, KV-32FS10, KV-36FS10KV-32FV15, KV-36FV15, KV-32XBR250KV-36XBR250

No. 441

D t N b

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Sony Service CompanyNational Technical ServicesA Division of Sony Electronics Inc.



SONY


89/101

x

Subject: S-Link, IR Headphone, OSD, and 3D CombFilter Mis-Operation

Date: November 22, 1999

Symptom:(172X) The following Symptoms may occur:

1. S-LinK: When the TV detects the S-Link signal in stand-by mode. TV issupposed to automatically turn on and select appropriate video input. It does turnon, but it does not select the appropriate input.

2. OSD: When customer tries to enter password for V-chip in Spanish menu,customer will see additional unnecessary letters Pr preceding correct OSD.

3. IR Headphone: In XBR models only. When customer swaps audio of mainpicture and PIP picture, customer can hear the audio of PIP picture even when itis supposed to be blocked.

4. 3D Comb Filter: In XBR model only, when customer changes video input from Sto composite, customer can see a Black & White picture, less than one second,then color returns.

Solution: If the customer should complain of the following symptoms please do the following:

27 inch models:

1. In the service Mode record on paper the following register information in both RF & Video mode:VP SHUE RF Data ______ Video Data:_______VP SCOL RF Data_______ Video Data:________VP SSHP RF Data_______ Video Data_________

2. 1) Replace the CPU (IC001)2) Enter the service Mode using the remote. Then press 8 then Enter. This will reset the CPU, turning the set off then back on automatically.

3) Re-enter the Service Mode.4) In the RF mode replace the data in the SHUE, SCOL, & SSHP with the recorded data from the original CPU.5) In the Video mode replace the data in the SHUE, SCOL, & SSHP with the recorded data from the original CPU.6) Change the Data of ID7 from 0 to 2.7) Write the new data into the CPU using the remote press the Mute then Enter key.

32/36 Non XBR Models:

Reference: Uchida, K. PRINTED IN USA

32/36 Non XBR Models:

1. In the service Mode record on paper the following register information in both RF & Video mode:VP SSHP RF Data ______ Video Data:_______

DA 2COL RF Data ______ Video Data:_______DA 2SHU RF Data ______ Video Data:________

2. 1) Replace the CPU (IC001)

2) Enter the service Mode using the remote. Then press 8 then Enter. This will reset the CPU, turning the set off then back on automatically.3) Re-enter the Service Mode.

4) In the RF mode replace the data in the 2SHU, 2COL, & SSHP with the

recorded data from the original CPU.


90/101

xi

recorded data from the original CPU.5) In the Video mode replace the data in the 2SHU, 2COL, & SSHP with the

recorded data from the original CPU.6) Change the Data of ID7 from 0 to 2.7) Write the new data into the CPU using the remote press the Mute then Enter key.

32/36 XBR models:

1. In the service Mode record on paper the following register information in both RF & Video mode:

VP SSHP RF Data ______ Video Data:_______DA 2COL RF Data ______ Video Data:_______DA 2SHU RF Data ______ Video Data:_______

2. 1) Replace the CPU (IC001)2) Enter the service Mode using the remote. Then press 8 then Enter. This will reset the CPU, turning the set off then back on automatically.

3) Re-enter the Service Mode.4) In the RF mode replace the data in the 2SHU, 2COL, & SSHP with the recorded data from the original CPU.

5) In the Video mode replace the data in the 2SHU, 2COL, & SSHP with the recorded data from the original CPU.6) Change the Data of ID7 from 9 to 11.

7) Write the new data into the CPU using the remote press the Mute then Enter key.

Model Ref Former New Part Number

KV-27FV15 IC001 CXP85856A-029S CXP85856A-035S 8-752-911-19

KV-32FS10 IC001 CXP85856A-024Q CXP85856A-035S 8-752-911-19

KV-36FS10 IC001 CXP85856A-024Q CXP85856A-035S 8-752-911-19

KV-32FV15 IC001 CXP85856A-024Q CXP85856A-035S 8-752-911-19

KV-36FV15 IC001 CXP85856A-024Q CXP85856A-035S 8-752-911-19

KV-32XBR250

IC001 CXP85856A-024Q CXP85856A-035S 8-752-911-19

KV-36XBR250

IC001 CXP85856A-024Q CXP85856A-035S 8-752-911-19

Model: KP-53XBR300, KP-61XBR300No. 442

Date: December 1 1999

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Sony Service CompanyNational Technical ServicesA Division of Sony Electronics Inc.Park Ridge, New Jersey 07656


SONY


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Subject: Picture Blinks Or Jitters Briefly; "VIDEO 5"And "DTV FORMAT: 480p" OR "DTV FORMAT:1080i" Appears On The Screen.

Date: December 1, 1999

Symptom:(F310) While watching a progressive-scan (480p) DVD movie through the Video 5 input, the

picture blinks or jitters briefly, and the on-screen display shows "VIDEO 5" in the topleft corner and "480p" in the bottom left corner. The problem is most likely to occurwhen large changes in brightness occur suddenly. A 1080i signal input to the Video 5input might also cause this problem to occur, and the bottom left corner would show

"DTV FORMAT: 1080i".

Solution: If the customer complains of this problem, change the value of R600 and R698 on theA-board as shown in the following table.

REF FORMER NEW

DESCRIPTION PART NUMBER DESCRIPTION PART NUMBER

R600 RESISTOR,CHIP,

470 OHM

1-216-041-91 RESISTOR,CHIP,

1K

1-216-049-91

R698 RESISTOR,CHIP,

1K

1-216-049-91 RESISTOR,CHIP,4.7K

1-216-065-91

Reference: F. Medeiros-PJA PRINTED IN USA

IC511

Q552 R600

R698

A-board Mounting DiagramService manual page 86,coordinates E-9 (shownhere rotated -180)

Model: KP-43T70, KP-46C70, KP-48S70, KP-48S72KP-48V80, KP-53N74, KP-53S70, KP-53V80KP-61S70, KP-61V80

No. 443

S bj t B i ht Pi t F ll d B Sh t dDate: December 1 1999

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Subject: Bright Picture Followed By Shut-down.Q706, Q733, Or Q764 May Be Damaged.

Date: December 1, 1999

Symptom:(1322) The picture goes bright then the set shuts-down.

Solution: If the customer should complain of the symptom above please replace three sparkgaps with the new type below. The CR, CG, and CB board might have one or more

of the following transistors fail: Q706, Q733, or Q764, so check them and replace anythat are found to be defective.

REF FORMER NEW

DESCRIPTION PARTNUMBER

DESCRIPTION PART NUMBER

SG702(CR BOARD)

SPARK GAP 1-519-422-11 SPARK GAP 1-517-729-31

SG732(CG BOARD)


SG762(CB BOARD)


Q706(CR BOARD)

TRANSISTOR,2SA1091-O

8-729-200-17 SAME ASFORMER PART

Q733(CG BOARD)



Q764(CB BOARD)



Reference: h. Iguchi PRINTED IN USA

Model: KP-43T70, KP-46C70, KP-48S70KP-48S72, KP-53N74, KP-53S70, KP-61S70 No. 446R1

Subject: Part Number CorrectionDate: January 18, 2000

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Subject: Part Number CorrectionReference No. 253, 254, 255

ate y ,

Symptom:(xxxx) The CRT part number listed on pages 106 and 130 of the Service Manual for Ref #

253, 254, and 255 is incorrect.

Solution: Please note the correct part number as shown below.

MODELS REF DESCRIPTION PART NUMBER

INCORRECT CORRECT

43T7046C70

253254255

CRT (R)CRT (G)CRT (B)

8-733-571-158-733-570-158-733-574-15

8-733-571-058-733-570-058-733-574-05

48S7048S72

253254255


8-733-572-158-733-570-158-733-575-15

8-733-572-058-733-570-058-733-575-05

53S70S/N

90XXX.

253254255


A-1501-526-AA-1501-522-AA-1501-527-A

53S70S/N

95XXX

253254255


8-733-572-058-733-570-058-733-575-05

53N74 253254255


8-733-572-158-733-570-158-733-575-15

8-733-572-058-733-570-058-733-575-05

61S70 253

254255

CRT (R)

CRT (G)CRT (B)

8-733-573-15

8-733-570-158-733-576-15

8-733-573-05

8-733-570-058-733-576-05

Note: Two types of CRTs are used in the KP-53S70. These CRT are not interchangeable.The CRT used will depend on the serial number. If the serial number begins with 90then use the P/N beginning with A . If the serial number begins with 95 then use theCRT P/N beginning with 8 .

Reference: FPR-U1675 PRINTED IN USA


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SETTING THE DIP SWITCH

Pins 1 and 2 will be dedicated to selecting between RA-4 XBR models and all other models due to NVM differ-ences.

Pins 3 and 4 will be dedicated to allowing pull up resistors for the target NVM chip if the chip is not getting poweron board.

There are diagrams for these selections located on page 5 of this manual.

CONNECTION TO THE NVM CHIP

For the prototype the following color wires should be connected to the following pins:


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For the prototype, the following color wires should be connected to the following pins:

PIN1 A0 BLUE/WHITEPIN2 A1 BLUEPIN3 A2 GROUNDING WIRE FOR RESET PINPIN4 GND ORANGE/WHITEPIN5 SDA BROWN/WHITEPIN6 SCL BROWNPIN7 WP GREENPIN8 VCC GREEN/WHITE

Plug in bus connector headshell and select first bus by moving switch in the up position, second bus is selected byplacing switch in the down position. +5 volts and gnd are supplied by the jig for power and signal setting purposes.

PLEASE NOTE:

Power and GND are provided from the JIG.

The RESET pin on the Microcontroller will need to be tied LOW. A test clip is provided on the connector for thispurpose.

There is a special note at the end of the manual for RA-3 suffix 12 & 13, RA-4 XBR models.

The READ and WRITEshould take only a maximum of 12 seconds.

The RA-4 XBRBD Board will take approximately 10 Seconds.

READ

To read from the NVM chip on the original board, clip the test clip to the NVM chip and pressthe read key. The NVM JIG will read contents of the original memory and program the JIG

memory with this information, the read (green) LED will then light up until the next key press.

WRITE

To write to the new board, after reading from the original board, clip the test clip to the newNVM chip and press the write key once. When the JIG has completed the write, the yellowLED will light.

ERROR INDICATION

If the JIG encounters a problem with communication to the NVM chip (i.e. no


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If the JIG encounters a problem with communication to the NVM chip (i.e. noacknowledgement on the line that a chip is there), the power LED will blink.

If there is an error indication ensure that the connector is attached properly.

That the Microprocessor on the board is disabled.

Try added or subtracting the pullup resistors on pins 3 and 4 of the DIP switch.

Turn the unit on and then back off again and try reading again.

This error will occur when the NVM has not acknowledged any of the addresses for ourNVMs. These addresses range from A0 hex to AE hex.

When communication has been interrupted between the JIG and NVM

And when the data does not compare properly between the JIG and Target NVM.

AFTER GETTING AN ERROR INDICATION

Press one of the keys once for a duration of approximately second. This will take you out ofthe blinking RED LED mode and a solid RED LED will again light. At this point you are back atthe starting point and may press either Write or Read buttons.

POWER DOWN

If the unit is powered for a period of time equal or greater than 5 minutes the JIG will powerdown. By turning the unit off and then back on again, you may restart your process.

DIP SWITCH

1 AND 2 designated for XBR toggle.

3 AND 4 designated for pull up resistors connected with the I2C lines.

SHIP TO MODE DIP (Regular NVM mode, NO pullups)

1 2 3 4

OFF OFF OFF OFF


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RA-4 XBR BD board NVM MODE, PULLUPS

REGULAR NVM MODE, PULLUPS FOR BOTH SCL AND SDAThis option will be needed for A boardand BM boardon RA-4 XBR.

As well as for NVMs on earlier models that require pullups.

NOTES

If you press either key the software will start the process of either writing or reading.

RA-4 XBR OPTIONS

With the RA4 you will need to ground the WP lines.

BD Board pin 55 IC1703 PJED-CPU

A Board pin 55 IC1008 Main CPU

BM Board Grounding 55 IC1009

Pull ups will be needed with the RA-4 model on all boards. There are no pullups closeto the NVM chip on any of the boards.

On earlier models of Rear Projection you will still need to Ground the RESETline of the Microcontrollers.

1 2 3 4

ON OFF ON ON

1 2 3 4

OFF OFF ON ON

RA-3 suffix 12 & 13 OPTIONS

With the RA3 PJED NVM you will need to ground the WP line pin 55 IC805 PJED-CPU andsupply +5 from the NVM reader/writer to pin 41 and 58 IC805 PJED-CPU.

With the RA3 Main CPU NVM you will need to ground the CPU crystal pin 12 IC002 MainCPU. Also it will be necessary to use the NVM reader/writer +5 supply for +5 standby pin 41IC002 Main CPU.


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Model: KP-53N74, KP-53S70, KP-61S70No. 451

Subject: Reference Numbers Are Pointing To TheW S


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Wrong Screens

Symptom:(XXXX) The reference numbers 102, 103, and 104 on page 103 of the Service Manual are

pointing to the wrong screens.

Solution: Please see the table below for the correct screen Ref., Description, and Part Number.

Model Ref. Description Part Number

KP-53N74 102 Contrast Screen 4-071-582-11

KP-53N74KP-53S70

103 Fresnel Screen 4-070-602-01

KP-61S70 103 Fresnel Screen 4-066-082-01

KP-53N74 104 Lenticular Screen 4-064-343-11

KP-53S70 104 Lenticular Screen 4-063-555-01



Model: KP-46C70, KP-48S70, KP-48S72No. 453

Subject: Reference Numbers Are Pointing To TheWrong Screens


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Wrong Screens

Symptom:(XXXX) The reference numbers 52, 53, and 54 on page 102 of the Service Manual are

pointing to the wrong screens.



KP-48S72 52 Contrast Screen 4-064-651-01

KP-46C70 53 Fresnel Screen 4-057-324-02

KP-48S70KP-48S72

53 Fresnel Screen 4-058-455-02

KP-46C70 54 Lenticular Screen 4-063-603-01




Model: KP-43T70 No. 454

Subject: Reference Numbers Are Pointing To TheWrong Screens Date:January 6, 2000

CSV-1Sony Service CompanyNational Technical ServicesA Division of Sony Electronics Inc.Park Ridge, New Jersey 07656


SONY


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Symptom:(XXXX) The reference numbers 2, 3, and 4 on page 101 of the Service Manual are pointing to

the wrong screens.



KP-43T70 2 Contrast Screen 4-070-286-01

KP-43T70 3 Fresnel Screen 4-070-285-11

KP-43T70 4 Lenticular Screen 4-070-284-11


Documents

TVP10_RA-3 & RA-4A Chassis.pdf