1

37GQ-20H

SERVICE MANUAL

SHARP CORPORATION

CONTENTS

PAL SYSTEM COLOUR TELEVISION

SEJB37GQ20H02

SQUAD CHASSIS

In the interests of user safety (required by safetyregulations in some countries) the set should restoredto its original condition and only parts identical tothose specified should be used.

MODEL 37GQ-20H

Issued: 9th June ‘00

This document has been published to be used for after sales service only.

ELECTRICAL SPECIFICATION.......................2IMPORTANT SERVICE NOTES.......................3SERVICE ADJUSTEMENTS.............................4PRINTED WIRING BOARDS...........................11

SCHEMATIC DIAGRAM, WAVE FORMS..... .13PART LIST.......................................................18TROUBLESHOOTING TABLES......................22

2

37GQ-20H

ELECTRICAL SPECIFICATIONS

•Power Input .......................220V-240 Volts AC 50Hz

•Power Consumption

•Audio Power Output Rating .....................2W (MPO)

Speaker............................32Ω 2W, 8cm Round, 1pc

Normal Operating...................................30W

Stand-by Operating................................7.5W(Method IEC60107)

•White LevelSet brightness control to get total picture tube cathode current of 600 milliamperes under no signal condition.Maximum necessary correction of each picture tube cathode current to get 8950 degree K-20 MPCD screentemperature should not exceed 15% of its original value.

X=0.290 Y=0.284

WARNINGThe chassis in this receiver is partially live, always use an isolation transformer whenservicing this chassis.To prevent electric shock, do not remove cover. No user-serviceable parts inside. Referservicing to qualified service personnel.

Convergence.........................Self Converging System

Focus....................................Bi-Potencial Electrostatic

Sweep Deflection...........................................Magnetic

Specifictions are subject to change without prior notice.

•Aerial Input ImpedanceVHF/UHF...........................75 ohm Unbalanced

•Tuning Ranges ............471.25MHz thru 855.25 MHz (CH21-CH69)•Picture Intermediate Frecuencie..............38.9MHz

• Sound Carrier Trap.............................32.9MHz

•Adjacent Sound Carrier Trap................40.9MHz

•Adjacent Picture Carrier Trap...............30.9MHz

3

37GQ-20H

IMPORTANT SERVICE NOTES

SERVICING OF HIGH VOLTAGE SYSTEM AND PICTURE TUBE

Maintenance and repair of this receiver should be done by qualified service personnel only.

When servicing the high voltage system, remove static charge from it by connecting a 10K ohmresistor in series with an insulated wire (such as test probe) between picture tube ground tag andhigh voltage lead. (AC line cord should be disconnected from AC outlet).

1. The Picture tube in this receiver employs Integral Implosion protection.2. Replace with tube of the same type number for continued safety.3. Do not lift picture tube by the neck.4. Handle the picture tube only when wearing shatterproof goggles and after discharging the high voltage completely.

X-RAYThis receiver is designed so that any X-Ray radiation is kept to an absolute minimum. Since certainmalfunctions and servicing may produce potentially hazardous radiation with prolonged exposure atclose range, the following precautions should be observed:

1. When repairing the circuit, be sure not to increase the high voltage to more than 25.5 KV, (at beam 1000µΑ) for the set.2. To keep the set in a normal operation, be sure to make it function on 22.4KV±1.5KV (at beam 800µΑ) in the case of the set. The set has been factory - adjusted to the above mentioned high voltage. Always check the high voltage if there is any possibility that it might have changed as a result of the repair.3. Do not substitute a picture tube with unauthorized types and/or brands which may cause excess X-Ray radiation.

BEFORE RETURNING THE RECEIVERIn addition to the above checks, the following safety checks should also be carried out before returningthe unit to the user.

1. Inspect all leads and dress to make certain that the leads are not pinched or that hardware is not lodged between the chassis and other metal parts.2. Inspect all protective devices such as non-metallic control knobs, insulating fish papers, cabinet backs, adjustment and compartment covers or shields, insolation resistor-capacity networks, mechanical insulators etc.

4

37GQ-20H

SERVICE ADJUSTMENT•SERVICE MODE FUNCTION

This mode funtion is provided to assist with the settings of those adjustments that may vary from onePicture Tube to another, or between models.

In order to use the Service Mode1. Press main switch to OFF.2. Connect Test Pattern signal to antenna terminal.

3. Press ∨ , CH ∨ and main switch to ON simultaneosly or

press ∧ , CH ∧ and main switch to ON simultaneosly.4. -SERVICE- will appear on screen. Service mode is now entered.

5. Select adjustment using buttons ∧ CH ∧ .

To exit Service Mode, press main switch to OFF or press MENU button on R/C.

a.b.c.d.e.

f.

g.h.i.j.k.l.m.n.

SERVICENVMAGC GAINAGC STRPLLPAL

AUTO

B-GAING-GAING-DCR-GAINR-DCHOR POSVERT POSVERT AM

Displayedon screen

Hexadecimal /Decim. Range Function

00 ∼ 03H00 ∼ 63H

S, L, VL, N4-43, 3-58,

SECAM, NTSC4-43,NTSC 3-58,

AUTO PNS,AUTO PN

AUTO, 50HZ,60HZ

0 ∼ 63d0 ∼ 63d0 ∼ 63d0 ∼ 63d0 ∼ 63d0 ∼ 63d0 ∼ 63d0 ∼ 15d

Indicates operative Service Mode.Access to NVM memoryAuto Gain ControlAuto Gain Starting PointLine PLL time constantColour system.

Field Frequency

Blue GainGreen GainGreen CutRed GainRed CutHorizontal Position shiftVertical Position shiftVertical Amplitude shift

6. For « a » Selection:NVM storage location settings variants.

BANK POS VALUE X XXH XXH Assigned value

Storage location

Memory Bank

In order to have access to NVM «MENU» button should be pressed. To obtain a higher or lower Memory

Bank, buttons ∨ ∧ should be pressed respectively. To have access to the desired Storage Location,

buttons ∨ CH ∧ should be pressed, as required to obtain a higher or lower location, respectively.

5

37GQ-20H

Bear in mind that, for storage location indication a hexadecimal numerical system is used, instead of adecimal system.0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F, 10, 11, ......19, 1A, 1B, 1C, 1D, 1E, 1F, 20, 21, ....., 99, 9A, 9B,9C, 9D, 9E, 9F, A0, A1, ....., B0, ....., C0, ....., D0, .....E0, ....., F0, F1, F2, F3, F4, F5, F6, F7, F8, F9, FA,FB, FC, FD, FE, FF.From the last location FF to the first 00 can be reached by increasing and from first to last by decreasing.Once the storage location to be varied has been selected, its value can be modified by the bits that formpart of the storage location numerical buttons, numbers «0» to «7», respectively. This swithches the binarynumber from and between 0 and 1 each time one of the buttons is pressed.

«0»:20=1, «1»: 21=2, «2»: 22=4, ...

7. For «b,c» and «g» thru «n» selections:

Adjustment to a selection can be made by pressing buttons ∨ ∧.

8. For «d» thru «f» selections:

Adjustment to a selection can be made by pressing button ∧.

NVM LIST DESCRIPTION

BANK ADDRESS DESCRIPTION VALUE00H 00H ZONE FOR TUNNING INFORMATION (BEGIN) CAH

3BH ZONE FOR TUNNING INFORMATION (END) 10H3CH STAND BY: 44H -> ON

40H -> OFF44H

3DH OPTION BYTE: 10XXXXXX -> HOTEL MODE 1 (START IN PRG1. NO TUNNING OPTION. VOLUME LIMITATION). 11XXXXXX -> HOTEL MODE 2 (START IN PRG 1. NO TUNING OPTION. VOLUME LIMITATION. START IN SCART MODE. OUT FROM STDBY WITH SSW. XXDDDDDD -> VOLUME ATTENUATION: 0AH -> 100%, 00H -> 0%

0AH

3EH DIODE_NVM: XXXXXXX0 -> SYMBOLIC OSD. XXXXXXX1 -> CHARACTER OSD XXXXX1XX -> ENGLISH LANGUAGE.

05H

3FH DIODE2_NVM: XXXXXXX1 -> FRENCH STANDARD XXXXX01X -> BG STANDARD XXXXX10X -> L/L’ STANDARD XX1XXXXX -> AUDIO FOR UK X1XXXXXX -> AUTOINSTALLATION ON 1XXXXXXX -> ONLY UHF BAND.

A0H

01H 00H ZONE FOR TUNNING INFORMATION (BEGIN) 10H3BH ZONE FOR TUNNING INFORMATION (END) 10H3DH UHFLOW: LOW WINDOW LIMIT FOR UHF BAND 80H3EH VHF3LOW: LOW WINDOW LIMIT FOR VHF3 BAND 80H3FH VHF1LOW: LOW WINDOW LIMIT FOR VHF1 BAND 80H

02H 00H RESERVED ZONE FOR PROGRAMME NAMES (BEGIN) 24H3FH RESERVED ZONE FOR PROGRAMME NAMES (END) 24H

6

37GQ-20H

03H 00H ONE CHIP REGISTER 00: 80H01H ONE CHIP REGISTER 01: 05H02H ONE CHIP REGISTER 02: 9FH03H ONE CHIP REGISTER 03: 20H04H ONE CHIP REGISTER 04: 00H05H ONE CHIP REGISTER 05: BAH06H ONE CHIP REGISTER 06: 42H07H ONE CHIP REGISTER 07: 32H08H ONE CHIP REGISTER 08: 19H09H ONE CHIP REGISTER 09: 99H0AH ONE CHIP REGISTER 0A: 32H0BH ONE CHIP REGISTER 0B: B2H0CH ONE CHIP REGISTER 0C: 32H0DH ONE CHIP REGISTER 0D: 20H0EH ONE CHIP REGISTER 0E: 20H0FH ONE CHIP REGISTER 0F: 18H10H ONE CHIP REGISTER 10: 1FH11H ONE CHIP REGISTER 11: 00H12H ONE CHIP REGISTER 12: 00H13H ONE CHIP REGISTER 13: 20H14H ONE CHIP REGISTER 14: 20H15H ONE CHIP REGISTER 15: 00H16H ONE CHIP REGISTER 16: 1FH17H ONE CHIP REGISTER 17: 20H18H ONE CHIP REGISTER 18: 2BH19H ONE CHIP REGISTER 19: 00H1AH ONE CHIP REGISTER 1A: 90H1BH ONE CHIP REGISTER 1B: 90H1CH ONE CHIP REGISTER 1C: 90H1DH ONE CHIP REGISTER 1D: 00H1EH ONE CHIP REGISTER 1E: 00H1FH ONE CHIP REGISTER 1F: 00H20H VPOS_50 (VERTICAL POSITION) 4/3 50 Hz. 12H21H VAMP_50 (VERTICAL AMPLITUDE) 4/3 50 Hz 0FH22H VPOS_60 (VERTICAL POSITION) 4/3 60 Hz 0FH23H VAMP_60 (VERTICAL AMPLITUDE) 4/3 60 Hz 0FH24H HSHIFT_60 (HORIZONTAL SHIFT) 60Hz 1DH25H HSHIFT_50 (HORIZONTAL SHIFT) 50Hz 22H26H FINVFH: STEP FOR FINE TUNING IN VHF BAND 00H27H VHF1_STEP: THICK TUNING STEP FOR VHF1 BAND A4H28H VHF3_STEP: THICK TUNING STEP FOR VHF3 BAND 85H29H UHF_STEP: THICK TUNING STEP FOR UHF BAND 64H2AH LP_COARSE: THICK TUNING ADJUSTMENT FOR L’ 02H2BH BG_COARSE: THICK TUNING ADJUSTMENT FOR L AND BG 0AH2CH BG_FINE: FINE TUNING ADJUSTMENT FOR L AND BG 00H2DH LP_FINE: FINE TUNING ADJUSTMENT FOR L’ 00H2EH DELAY SEARCH:

XXXXXXX0 -> SHOWS ‘PROGRAMME –‘ DURING AUTOSEARCH. XXXXXXX1 -> DHOWS ‘AUTO SEARCH’ DURING AUTOSEARCH

00H

2FH VHF1_SP: STEP FOR AUTO SEARCH IN VHF1 BAND 0AH30H VHF3_SP: STEP FOR AUTO SEARCH IN VHF3 BAND 05H31H UHF_SP: STEP FOR AUTO SEARCH IN UHF BAND 03H32H OLD_PROGRAM: FOR FLASHBACK RETURN 00H33H UHFHIGH: UPPER WINDOW LIMIT FOR UHF 00H34H VHF3HIGH: UPPER WINDOW LIMIT FOR VHF3 00H

7

37GQ-20H

35H VHF1HIGH: UPPER WINDOW LIMIT FOR VHF1 00H36H PRG_NUMBER: CURRENT PROGRAMME NUMBER 01H37H WAITSUP: UPPER LIMIT DELAY TIME FOR AUTOSEARCH. 0FH38H WAITINF: LOWER LIMIT DELAY TIME FOR AUTOSEARCH 03H3Bh SCART BLOKING:

- 00H = NO SCARTBLOCKING- 01H = SCART BLOCKING WHEN ANY PR. IS IN CHILD

LOCK MODE.

00HV2 µProc.Version orupper.

3CH RET_COL: DELAY IN COLOUR IDENTIFICATION IN AUTO MODE.

40H

3FH CHECKSUM 7EH

04H 00H ONE CHIP REGISTER 00: 80H01H ONE CHIP REGISTER 01: 05H02H ONE CHIP REGISTER 02: 9FH03H ONE CHIP REGISTER 03: 20H04H ONE CHIP REGISTER 04: 00H05H ONE CHIP REGISTER 05: BAH06H ONE CHIP REGISTER 06: 42H07H ONE CHIP REGISTER 07: 32H08H ONE CHIP REGISTER 08: 19H09H ONE CHIP REGISTER 09: 99H0AH ONE CHIP REGISTER 0A: 32H0BH ONE CHIP REGISTER 0B: B2H0CH ONE CHIP REGISTER 0C: 32H0DH ONE CHIP REGISTER 0D: 20H0EH ONE CHIP REGISTER 0E: 20H0FH ONE CHIP REGISTER 0F: 18H10H ONE CHIP REGISTER 10: 1FH11H ONE CHIP REGISTER 11: 00H12H ONE CHIP REGISTER 12: 00H13H ONE CHIP REGISTER 13: 20H14H ONE CHIP REGISTER 14: 20H15H ONE CHIP REGISTER 15: 00H16H ONE CHIP REGISTER 16: 1FH17H ONE CHIP REGISTER 17: 20H18H ONE CHIP REGISTER 18: 2BH19H ONE CHIP REGISTER 19: 00H1AH ONE CHIP REGISTER 1A: 90H1BH ONE CHIP REGISTER 1B: 90H1CH ONE CHIP REGISTER 1C: 90H1DH ONE CHIP REGISTER 1D: 00H1EH ONE CHIP REGISTER 1E: 00H1FH ONE CHIP REGISTER 1F: 00H20H VPOS_50 (VERTICAL POSITION) 4/3 50 Hz. 12H21H VAMP_50 (VERTICAL AMPLITUDE) 4/3 50 Hz 0FH22H VPOS_60 (VERTICAL POSITION) 4/3 60 Hz 0FH23H VAMP_60 (VERTICAL AMPLITUDE) 4/3 60 Hz 0FH24H HSHIFT_60 (HORIZONTAL SHIFT) 60Hz 1DH25H HSHIFT_50 (HORIZONTAL SHIFT) 50Hz 22H26H FINVFH: STEP FOR FINE TUNING IN VHF BAND 00H27H VHF1_STEP: THICK TUNING STEP FOR VHF1 BAND A4H28H VHF3_STEP: THICK TUNING STEP FOR VHF3 BAND 85H29H UHF_STEP: THICK TUNING STEP FOR UHF BAND 64H2AH LP_COARSE: THICK TUNING ADJUSTMENT FOR L’ 02H2BH BG_COARSE: THICK TUNING ADJUSTMENT FOR L AND BG 0AH2CH BG_FINE: FINE TUNING ADJUSTMENT FOR L AND BG 00H2DH LP_FINE: FINE TUNING ADJUSTMENT FOR L’ 00H2EH DELAY SEARCH:

XXXXXXX0 -> SHOWS ‘PROGRAMME –‘ DURING AUTOSEARCH. XXXXXXX1 -> DHOWS ‘AUTO SEARCH’ DURING AUTOSEARCH

00H

8

37GQ-20H

2FH VHF1_SP: STEP FOR AUTO SEARCH IN VHF1 BAND 0AH30H VHF3_SP: STEP FOR AUTO SEARCH IN VHF3 BAND 05H31H UHF_SP: STEP FOR AUTO SEARCH IN VHF BAND 03H32H OLD_PROGRAM: FOR FLASHBACK RETURN 00H33H UHFHIGH: UPPER WINDOW LIMIT FOR UHF 00H34H VHF3HIGH: UPPER WINDOW LIMIT FOR VHF3 00H35H VHF1HIGH: UPPER WINDOW LIMIT FOR VHF1 00H36H PRG_NUMBER: CURRENT PROGRAMME NUMBER 01H37H WAITSUP: UPPER LIMIT DELAY TIME FOR AUTOSEARCH. 0FH38H WAITINF: LOWER LIMIT DELAY TIME FOR AUTOSEARCH 03H3Bh SCART BLOKING:

- 00H = NO SCARTBLOCKING- 01H = SCART BLOCKING WHEN ANY PR. IS IN CHILD

LOCK MODE.

00HV2 µProc.Version orupper.

3CH RET_COL: DELAY IN COLOUR IDENTIFICATION IN AUTO MODE.

40H

3FH CHECKSUM 7EH

05H 00H ONE CHIP REGISTER 00: 80H01H ONE CHIP REGISTER 01: 05H02H ONE CHIP REGISTER 02: 9FH03H ONE CHIP REGISTER 03: 20H04H ONE CHIP REGISTER 04: 00H05H ONE CHIP REGISTER 05: BAH06H ONE CHIP REGISTER 06: 42H07H ONE CHIP REGISTER 07: 32H08H ONE CHIP REGISTER 08: 19H09H ONE CHIP REGISTER 09: 99H0AH ONE CHIP REGISTER 0A: 32H0BH ONE CHIP REGISTER 0B: B2H0CH ONE CHIP REGISTER 0C: 32H0DH ONE CHIP REGISTER 0D: 20H0EH ONE CHIP REGISTER 0E: 20H0FH ONE CHIP REGISTER 0F: 18H10H ONE CHIP REGISTER 10: 1FH11H ONE CHIP REGISTER 11: 00H12H ONE CHIP REGISTER 12: 00H13H ONE CHIP REGISTER 13: 20H14H ONE CHIP REGISTER 14: 20H15H ONE CHIP REGISTER 15: 00H16H ONE CHIP REGISTER 16: 1FH17H ONE CHIP REGISTER 17: 20H18H ONE CHIP REGISTER 18: 2BH19H ONE CHIP REGISTER 19: 00H1AH ONE CHIP REGISTER 1A: 90H1BH ONE CHIP REGISTER 1B: 90H1CH ONE CHIP REGISTER 1C: 90H1DH ONE CHIP REGISTER 1D: 00H1EH ONE CHIP REGISTER 1E: 00H1FH ONE CHIP REGISTER 1F: 00H20H VPOS_50 (VERTICAL POSITION) 4/3 50 Hz. 12H21H VAMP_50 (VERTICAL AMPLITUDE) 4/3 50 Hz 0FH22H VPOS_60 (VERTICAL POSITION) 4/3 60 Hz 0FH23H VAMP_60 (VERTICAL AMPLITUDE) 4/3 60 Hz 0FH24H HSHIFT_60 (HORIZONTAL SHIFT) 60Hz 1DH25H HSHIFT_50 (HORIZONTAL SHIFT) 50Hz 22H26H FINVFH: STEP FOR FINE TUNING IN VHF BAND 00H27H VHF1_STEP: THICK TUNING STEP FOR VHF1 BAND A4H28H VHF3_STEP: THICK TUNING STEP FOR VHF3 BAND 85H29H UHF_STEP: THICK TUNING STEP FOR UHF BAND 64H2AH LP_COARSE: THICK TUNING ADJUSTMENT FOR L’ 02H

9

37GQ-20H

•••••PIF/AGC Adjustement •••••Screen Adjustement

Apply mains voltage of 220V AC/50HZ to TV.1. Receive Philips pattern signal to a levelbetween 60 and 80 dBµV.

2.

Set contrast to 10/10, brightness to 5/10and colour 0/10.

3.

Adjust focus potentiometer to obtainmaximum definition.

4.

3. Focus Adjustment1. B/G AFT Adjustment

Connect the output of SSG (Standard SignalGenerator) to the tuner IF output terminal.•SSG output 38.9 MHz (CW) ± 5 KHz.•SSG output level: approx. 90 dBµV.

1.

Enter into Service Mode.2. Push «2» key on R/C. «FI OK» will appear.3. Switch set OFF and ON again, setting is nowmemorized.

4.

Receive the «CROSS HATCH» signal (Channel I-42). Signal strength: 57 dBµV.

1.

Enter into Service Mode.2.

2. RF-AGC STR Adjustment

Push CH until AGC STR appears on screen.3.4. Push «7» key of R/C.«AGC OK» will appear.

Switch set OFF and ON again, setting is nowmemorized.

5.

4. G2 AdjustmentApply mains voltage of 220V AC/50HZ to TV.1.

Receive the «CROSS HATCH» pattern signal to alevel between 60 and 80 dBµV.

2.

Apply High Voltage Probe to Pin 8 of CRT socket3.4. Adjust G2 potentiometer until obtaining 525V

±10%.

5. Check BKGD. If it is necessary adjust BKGDaccording to instructions detailed in the nextpage.

2BH BG_COARSE: THICK TUNING ADJUSTMENT FOR L AND BG 0AH2CH BG_FINE: FINE TUNING ADJUSTMENT FOR L AND BG 00H2DH LP_FINE: FINE TUNING ADJUSTMENT FOR L’ 00H2EH DELAY SEARCH:

XXXXXXX0 -> SHOWS ‘PROGRAMME –‘ DURING AUTOSEARCH. XXXXXXX1 -> DHOWS ‘AUTO SEARCH’ DURING AUTOSEARCH

00H

2FH VHF1_SP: STEP FOR AUTO SEARCH IN VHF1 BAND 0AH30H VHF3_SP: STEP FOR AUTO SEARCH IN VHF3 BAND 05H31H UHF_SP: STEP FOR AUTO SEARCH IN VHF BAND 03H32H OLD_PROGRAM: FOR FLASHBACK RETURN 00H33H UHFHIGH: UPPER WINDOW LIMIT FOR UHF 00H34H VHF3HIGH: UPPER WINDOW 00H35H VHF1HIGH: UPPER WINDOW LIMIT FOR VHF1 00H36H PRG_NUMBER: CURRENT PROGRAMME NUMBER 01H37H WAITSUP: UPPER LIMIT DELAY TIME FOR AUTOSEARCH. 0FH38H WAITINF: LOWER LIMIT DELAY TIME FOR AUTOSEARCH 03H3Bh SCART BLOKING:

- 00H = NO SCARTBLOCKING- 01H = SCART BLOCKING WHEN ANY PR. IS IN CHILD

LOCK MODE.

00HV2 µProc.Version orupper.

3CH RET_COL: DELAY IN COLOUR IDENTIFICATION IN AUTO MODE.

40H

3FH CHECKSUM 7EH

10

37GQ-20H

1. HOR POSa) Receive Philips pattern signal.

b) When ∧ button is pressed, picture moves to the left.

c) When ∨ button is pressed, picture moves to the right.d) Adjust the horizontal location to obtain picture centering (Fig.1).

•GEOMETRY ADJUSTMENT PROCEDURE

2. VERT POSa) Receive Philips pattern signal.b) When ∧ button is pressed, picture moves up.

c) When ∨ button is pressed, picture moves down.d) Adjust the vertical location to obtain picture centering (Fig.2).

3. VERT AMa) Receive Philips pattern signal.b) When ∧ button is pressed, vertical size of picture increases.

c) When ∨ button is pressed, vertical size of picture decreases.d) Adjust the vertical size to obtain picture overscan (Fig.3).

The following adjustments are required when the Picture Tube or IC801 are replaced, ormay be necessary after adjustment of the G2 voltage.

1. «B-GAIN», «G-GAIN»a) Adjust G2.b) Tune a grey scale pattern.c) Adjust colour to minimum.d) Fix R-GAIN value to 50.e) Position colourmeter in the the left point of Fig.4.f) Using brightness and contrast buttons, select a luminance of ≈120 nits.g) Operate again in Service Mode and select location B-GAIN andG-GAIN to obtain colour coordinates:

X = 0.290 ± 0.015Y = 0.284 ± 0.015

h) Exit Service Mode and check colour coordinates «X» and «Y» at 20 and 120 nits. It may benecessary to repeat the same procedure or re-adjust the cuts as show the be below one.

2. «G-DC», «R-DC»a) Adjust G2, in the case that it has not been made previously.b) Tune a grey scale pattern.c) Adjust colour to minimum.e) Position colourmter in the the right point of Fig.4.f) Using brightness and contrast buttons, select a luminance of ≈20 nits.g) Operate again in Service Mode and select location G-DC and R-DC to obtain colourcoordinates:

X = 0.290 ± 0.015Y = 0.284 ± 0.015

h) Exit Service Mode and check colour coordinates «X» and «Y» at 20 and 120 nits. It may benecessary to repeat the same procedure or the previous one.

•COLOUR ADJUSTMENT (BKGD) PROCEDURES

NOTE: Locations «R» alter «X» coordinates; «G» alter «Y» coordinates; «B» alter «X» and «Y»coordinates.

Fig. 2

Fig. 1

Fig. 3

Fig. 4

3 7 4 0

6 5 4 3 2 1 0

(0: Black ... 7: White)

Gain point

DC point

11

37GQ-20H

J50

(K)

1

5

J94

C22

3

C726

C10

14

FB801

JL3.

JL3

L5 FB

403

FB402

F401

Q703

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JF14

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S1

J40

D801

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R816 JL2

JL2.

JL1.

J67

J82

R1013

R511

J39

J58

J57

J90

J35

J34

J21

J3

J89

+

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+

R71

6

D717

C878

+

C72

1

R70

1

C718

J88

B

Q502

E

+

C815

J48

+

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C814

+

+

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L801

J87

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+C819

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J1

J85

C E

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J5

R51

6

R53

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(S)

1

+

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4

FB

301

J302

426

5317

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E

Q885

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21

S701

+

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C60

3

+

R710

J16

J52

C1001

+

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C508

J22

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9

J72

R604

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E

C

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Q601

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D606

(F)

1 2 3 4 5

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CRT

R866E

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(L3)

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1

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5

++

C208

SF

202

15

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SF201

R61

0

R60

3

R607

T601

10

9

8

7

65

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AGC

TU

AS

CL

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IF1

IF2

SC401

BQ602

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R605

R609

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L601

R606

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5+

J68

J64

+

C801

J55

C805 + +

C82

0

C207

+

RMC001

S1004S1003S1002S1001K

D1001

C1009+

J6

J43

J44

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F7287BMN1

F7288BMN1

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8

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J47

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+1 (H).4

C604

+

C60

5

J73

R71

4

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2

D702

PR

701

C704

R406

J65

C70

3

D701D703

(A)

3

2

1

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2

R61

7

C601

C609

R616

+

C608

TP

601

TP

602

R611

C713

+

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G2

C876

BQ883E

R885

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(SH)(S).

B

Q87

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+C307

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+

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R502

E

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B

R1011R1012

R718R709R301

J12

D709

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J7

+

C714

D711

J84

IC1003

C

Q10

01

E

R615

JF10

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8

L100

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1 3

IC1004

+

C705

C701

(L2)

R88

7

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+

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2

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3

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0

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R61

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(SE

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ICE

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LK

SC

L

SD

A

SE

R

DA

T

GN

D

FB701

JF15

L701

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R1028

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+

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7

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B

Q503

E

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JL6.

C728

JL10

JL10

.

C82

2

PRINTED WIRING BOARD (01 A Version)Component side.

1

I

H

G

F

E

D

C

B

A

2 3 4 5 6 7

12

37GQ-20H

J51

J50C823 C825

C82

4

R815

J97R88

8

(K)

5

1

R405

R404

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3

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4

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8

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8

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R811

R810

R809

R808

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K

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20

C1011

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24

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FB

404

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(S)1

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301

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D60

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2

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(G)

S701

+

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1

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3

+

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R82

5

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J16

J52

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01

+

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8

K D506

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C602

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12345

X1001

C10

06

R10

09

C10

10

1

R708R707

T701

C709

Q702CE

J38

3

45

6

7

8

9

CRT

D860K

C86

0

C871

R866

Q871EB

R879

R894

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1

CF201

+

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9

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+ +C20

8

SF

202

5

5

L203

C214

C213

C212

C211

R61

0

R60

3

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Q604

T601

IF2

IF1

33V

B+

TU

AGC

TU201

SC401

BE

Q602

R605

R609

Q603

EB

L601

R606

R40

2

1

16

3233

48

IC801

L802

C215

+

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J64

C203

J56

C21

0 C202

R204

+C801

J55

C20

1

L201

C80

5

++C820

C80

2

+ C20

6

RMC001

S1004 S1003 S1002 S1001

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01

C1009

+

J6

IC1001

R10

16

R10

17

R1002

R1001

J43

J44

C71

5

C207 SF201

R60

8

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C30

1

+

F7287BMN1

F7288BMN1

A

A

+

C40

6

D40

1K

R512

R513

L100

2

C10

03C

1002

R802R801R803

J54

C80

9

X801

C219

R216

R218

C220C21

8 R217

Q203

R21

5

R20

7

R20

6

R21

4C204

L205

R21

0 D20

2Q

202

Q201

R20

9R

208

L204

R20

5C21

7

D602

J45

J47

J53

L602

C401+

4

(H).

C60

4

+

C60

5

K

D402

R401

C404C405

1

IC1002J73

R71

4C702

D702

PR701

C704

KD404

K

D40

5

K

D406

D40

7

K

R406

R40

7

J65

R805R806R807

C703

D701

D703

3

2

1

(A)

R61

2

R61

7

C601

C609

R616

+C608

R611

C713

D710

Q887EB

R88

1C

873

Q872 E

B

C874K

D812

R883C876

BE

Q883R892

C862

D861

K

R885

1

4

(H)

C310

R31

7

L302

1

(SH

)

(S).

R31

6

C31

1

R88

0

C87

2

B

E

Q87

0

R864

R893

D862K

C861

R898

R305+R313

+C307C302

+

R304

R303R306

R312

Q30

3

EC Q301

R307

C309

R311

C308

FB601

R10

23

R10

08R

1018

D10

02

K

L202

C408+

R219

C313

C314

L303

R319

R536

J17

J15

D60

5

C607

+

D503

R515

R52

3

C50

9

R51

0

Q501 E

B

R1011

R1012R718

R709 R301

J12

D709C712

+Q706

J7+

C714 D711J84

R719

IC10

03

R10

10

Q1001R1025

R1019

R615

JF10

R618

L100

1C

1012

IC1004

R10

26

R1021

R10

22

D1003K

R1014

C10

13

+C705

C701

R88

7

C87

9

L861

+C707 R70

2

R703

C725

R10

05

R10

06

J24

J29

J28J30

R81

9

R82

0

Q50

6

J86

R613

D60

4

C606

K

D60

7

J79

C81

7

Q707

Q70

3

R502

J77

J78

J80

J91

Q40

2

R41

9R

420

R418

Q40

1

R403

C61

0

Q701

R72

2

FB701

C708

JF15

L701

JF12

R1027

R1028

R1029R

1031

R1030

C710

+

FB702

D70

7

JF16

R320

R704

SD

A

SC

L

CLK

SER

DA

T

GND

J92

C1008

R10

15R

211

Q507

J81

R537

J19

B E

Q503

D409 K

R222

R41

3

D410K

D41

1

K

D41

2

K

R414

C1015

C10

05

C10

04

R1034R1033

Q10

03

Q10

02

R524

R52

5

J93

C72

8

R72

6

C216

C22

4C

225

J96D81

1

K

J103

R89

9

J98

PRINTED WIRING BOARD (N1 A Version)Copper side.

1

I

H

G

F

E

D

C

B

A

2 3 4 5 6 7

13

37GQ-20H

WAVEFORM MEASUREMENT CONDITION:Colour bar genetator signal of 70 dB from RF input.

1. The unit of resistance «ohm»is omitted (K=1000ohms. M= Megaohm).2. All resistors are 1/8 watt. unless otherwise noted.3. All capacitors are µF, unless otherwise noted (P=µµF).4. The capacitor with Part No. RC-FZ9XXXBMNJ isdesigned to with stand 63V.

NOTE:

SERVICE PRECAUTION:

DESCRIPTION OF SCHEMATIC DIAGRAM

SAFETY NOTE:1. DISCONNECT THE AC PLUG FROM THE ACOUTLET BEFORE REPLACING PARTS.

2. SEMICONDUCTOR HEAT SINKS SHOULD BEREGARDED AS POTENTIAL SHOCK HAZARDSWHEN THE CHASSIS IS OPERATING.

IMPOTANT SAFETY NOTE:

PARTS MARKED WITH « » ( ) AREIMPORTANT FOR MAINTAINING THE SAFETYOF THE SET. BE SURE TO REPLACE THESEPARTS WITH SPECIFIED ONES FORMAINTAINING THE SAFETY AND PERFORMAN-CE OF THE SET.

!

CAUTIONThis circuit diagram is original one,therefore there may be slight differencefrom yours.

1 2 3 4 5

6 7 8 9 10

11 12 13 14 15

CH1 100V A 2µs 200V VERT

CH1 FREQ = 100KHzCH1 P-P = 504 V

CH1 100V A 2µs 100V VERT

CH1 FREQ = 100KHzCH1 P-P = 472 V

CH1 2V A 10µs -1.00V VERT

CH1 FREQ = 15.6KHzCH1 P-P = 8.56 V

CH1 200V A 10µs 200V VERT

CH1 FREQ = 15.6KHzCH1 P-P = 1.00 kV

CH1 1V A 10µs 1.00V VERT

CH1 FREQ = 15.6KHzCH1 P-P = 5.40 V

CH1 1V A 5ms 2.50 V VERT

THE AREA ENCLOSED BY THIS LINE ( )IS DIRECTLY CONNECTED WITH AC MAINSVOLTAGE.WHEN SERVICING THE AREA, CONNECT ANISOLATING TRANSFORMER BETWEEN TVRECEIVER AND AC LINE TO ELIMINATEHAZARD OF ELECTRIC SHOCK.

CH1 FREQ = 50.0 HzCH1 P-P = 4.80 V

CH1 500mV A 5ms 1.00V VERT

CH1 FREQ = 50.0 HzCH1 P-P = 1.48 V

CH1 500mV A 5ms -500mV VERT

CH1 FREQ = 50.0 HzCH1 P-P = 1.94 V

CH1 10V A 5ms -10.0mV VERT

CH1 FREQ = 50.0 HzCH1 P-P = 38.4 V

CH1 1V A 5ms 2.50 V VERT

CH1 FREQ = 1.00 KHzCH1 P-P = 4.44 V

CH1 5V A 500µs 0.0 V VERT

CH1 FREQ = 412 HzCH1 P-P = 16.8 V

CH1 500mV A 10µs TVFLD 25

CH1 FREQ = 15.6 KHzCH1 P-P = 1.84 V

CH1 20V A 10µs 150 V VERT

CH1 FREQ = 15.6 KHzCH1 P-P = 74.4 V

CH1 20V A 10µs 150 V VERT

CH1 FREQ = 15.6 KHzCH1 P-P = 72.8 V

CH1 FREQ = 15.6 KHzCH1 P-P = 70.4 V

CH1 20V A 10µs 150 V VERT

gndgnd

gnd gnd gnd

gnd

gnd

gnd

gnd

gnd

gnd

gnd gnd gnd gnd

14

37GQ-20H

2

25

3

3

FOCU

S

1

1

L3

4

4

-10V

+10V

JF13

JF15

QPWBF7287BMN0

-2

+20V

+8V

+10V

+105

V

S100

1

K007

9GE

S100

2

K007

9GE

C702

10nF

(250

V)KZ

0029

C703

10nF

(250

V)KZ

0029

C704

10nF

(250

V)KZ

0029

D701

DX05

71

D702

DX05

71

D703

DX05

71

D704

DX05

71

R702

470K

(1/2

W)

D707

DX05

05

D708

DX05

61

D709

DX05

90BM

MBR

1100

RL

D710

DX05

04

T701

Z058

0BM

8 3

16 15 11 1312

D8 D9 D10 D11 1212 VCC13 GND14

L701

CILF

0160

BM(G

)N0

207C

E

PR70

1

P002

8

C507

220n

F

R524

3K9

D717

1N49

37

R880 47

0

C862

470p

F

(L2)

QTIP

M00

17CE

FM

R888

0

Q87

0TX

0181

BF42

2

9

F701

T3.1

5

R879

470

Q87

2TX

0181

BF42

2

(H)

QCN

W-2

834B

MZZ

5

C874

1nF

(500

V)12

R894

1K

R885

2K7

(1/2

W)

R883

2K7

(1/2

W)

L861

12uH

C860

470p

FR8

6615

K(2

W)

R862

15K

(2W

)

7

R899

0

8

R887

2K7

(1/2

W)

Q88

5TX

0180

BM

C701

470n

F(2

75V)

FZ01

60BM

C871

470p

F

6

R892

1K

C876

4.7n

F(2

KV)

R864 15

K

(2W

)

D811

DX05

51

D862

DX05

51

(A)

N030

4CE

R893

1K

R881

470

C861

470p

F

D861

DX05

51

4

Q88

3TX

0180

BM

C872

470p

F

(L3)

QTIP

M00

17CE

FM

R898

0

S701

P058

8

C873

470p

F

Q87

1TX

0181

BF42

2

3

D860 DX

0551

Q88

7TX

0180

BM

(K)

QCN

W-2

835B

MZZ

D812

DX05

51

C878

10uF (200

V)

C715

100n

F

Q70

2TX

0218

BC33

7-40

R710

220

(1/2

W)

JF11

C707

10uF

(16V

)

C710

220u

F(2

5V)

C705 47uF

(400

V)EZ

0140

BM

C879

100p

F

Q70

5

2SA1

037

R716

47K

(1/2

W)

C718

47nF

400V

R701

470K

(1/2

W)

R724

150

R725

390

R502

1K

C723

100p

F

FB70

2BL

N-00

37CE

CRT

7 5 4 9 3

68

1

C711

100u

F(1

60V)

R718

4K7

C728

220p

F(2

Kv)

C713

220u

F(1

6V)

C712

220u

F(1

6V)

FB70

1D7

16DX

0551

BMR7

1510

R703 22

D705

DX05

51

R726 0 (TQ)

D721

DX05

04

D722

DX05

041

2

13

15

14

SCH

EMAT

IC D

IAG

RA

M (0

1 Ve

rsio

n).

Page 16Page 15

1

I

H

G

F

E

D

C

B

A

2 3 4 5 6 7

15

37GQ-20H

H.V.

FOCO

G2

1 2 3 4

1

+8V

+8V

+5V

B

-10V

SERJ77

+7V

-10V

+5V

A

-25V

+10V

PC3

+105

V

+105

V

.

.

C708

15nF

C709

2n2

(4Kv

)

C603

220u

F(1

0V)

C604

220u

F(1

0V)

D706 C6

V2EX

0584

R704

100

R705

330

(TQ)

R707

8M2

(1/2

W)

(UA)

R708

8M2

(1/2

W)

(UA)

D711

DX05

03

1N49

33

D710

DX05

04

1N49

34

D714

B5V6

Q70

12S

C241

2

Q70

3TX

0218

BC33

7-40

R512

10K

R513

68K

Q50

1BC

636

R604

470

(1/2

W)

R606

6.8

(1/2

W)

R607

1 (1/2

W)

R610

27 (1/2

W)

R611

27 (1/2

W)

R612

2.7

(1W

)

R615

10 (1/2

W)

R616

3K3

(1/2

W)

C608 1u

F(1

60V)

C609

470n

F(2

50V)

FZ01

74BM

Q60

1TX

0132

BU50

8D

Q60

42S

C241

2

L601

4.7u

F(C

F)

L602

22uH

(CF)

D601

DX05

51

D602

DX05

051N

4935

D604

DX05

061N

4936

D6 DX 1N

R614

560

11 7 10

3

8

5 6

1413 9 10

IC70

1TD

A168

33

GND1

FB2

33

D4

D5

D6

D7D8 D

9 D10 D11 1212 VCC13 GND14

(H)

QCN

W-2

834B

MZZ

(F)

N050

5CE

R714 82

0(1

/2W

)

R517

180K

C503

330n

F

Q50

52S

A103

7

+VS

-VS_ +

IC50

1UA

741

8 7 6 54321

220n

F

R519

8K2

R617

1K

Q50

2BC

635

D503

1N49

33

C717

10uF

(16V

)

R603

330

(1/2

W)

R609

2.2

(1/2

W)

Q60

3TX

0112

BC63

6

R605

6.8

(1/2

W)

Q60

2BC

635

TX01

08BM

R523

560

R536

4K7

R516 1K

D605

DX05

041N

4934

R613

15K

C606

22nF

R706

680

R710

220

(1/2

W)

C607

100u

F(3

5V)

C722

10uF

(16V

)

R722

120

C610

22nF

D607

EX05

49BM

7V5

R510

1 (1/2

W)

R533

120K

Q50

92S

A103

7

R535

820K

Q70

7TX

0217

BC33

7

D718

5V6

R721

22

R720

560

(1/2

W)

R719 2K

7

Q70

8

2SC2

412K

Q

R502

1K

R530 180K

C510

100p

F

C724

100p

F

C723

100p

F

R509

1K

R537

15K

C726

2.2u

F

R102

7

100

R

J67

1uF

Q50

72S

C241

2KQ

C601

6n8

1K5

R718

4K7

R534

1K5

D603

DX00

45R6

0818

K

R538

2K2

C725

2n2

(4Kv

)

Q50

62S

A103

7

R525

120

C713

220u

F(1

6V)

220u

F(1

6V)

R723

1K

C605

100n

F

T601 NF

2072

BM4 2 5

6

9

D712

6V2

(2%

)

R711

22

FB70

1

BLN-

0020

D716

DX05

51BM

R715

10

Q70

62S

A103

7

D723

DX05

03

C714

470u

F(1

0V)

D721

DX05

04

3

4

7

8

Page 17Pa

ge 1

4

8 9 10 11 12 13 14

I

H

G

F

E

D

C

B

A

SCHEMATIC DIAGRAM (01 Version).

16

37GQ-20H

RMC0

01

12

34

5

+20V

JF16

AUDI

O VT BH BU

VERT

B G

G

B

G

B

G

B

+20V

BG

VERT

I

I

-25V

+105

V

+5V

B

R

R

R

R

R

BL

+105

V

VSYN

C

VSYN

C

SDA AG

C

FB

VSYN

C

SS

FLB

SCL

FLB

L/L'

FB

PC5

.

3

2

CU02

22CE

1

S100

2

K007

9GE

S100

3

K007

9GE

S100

4

K007

9GE

C805

1uF

C806

100n

FC8

0710

0nF

C808

100n

F

C809

100n

F

C810

100n

F

C811

100n

F

C901

100n

F X801

R801

220

R802

220 R8

0322

0

R804

1K

R809

47K

R810 10

0

R811 10

0

R812

100

R822

330K

C819

1uF

R301

4K7

(1/2

W)

R304

2.2

(1/2

W)

R305

4K7

(1/2

W)

R306

100K

R307

10K

R310

100

R311

100K

R313

560

R314

1K

C302

1uF

C304

100u

F(1

6V)

C307

47uF

(16V

)

Q30

1BC

337

TX02

17

Q30

2BC

327

TX02

16

Q30

3

2SA1

037

Q30

42S

C241

2

L301

3.3u

H(D

F)

C820

L100

110

uH(D

F)

R100

91K

R101

027

KR101

14K

7

(1/2

W)

R101

24K

7

(1/2

W)

R101

34K

7

(1/2

W)

R101

422

K

C100

2

22pF

C100

3

22pF

C100

622

pF

R101

633

0

R101

7

270

D100

1PX

0104

BM

C309

10nF

C308

1uF

R101

522

K

(K)

QCNW

-283

5BM

ZZ

C100

515

pF

R302

4K7

(1/2

W)

R823

1K

R102

24K

7

R102

05K

6

C101

122

0nF

(25V

)

R808

1K

(S)

FB30

1BL

N003

7

IC10

04PS

T529

22

11

33

R303

33K

Q30

52S

C241

2

R221

R222

220K

D805 5V6

CVBS

IN2

28

BS29

BEXT

30

GEXT

31

REXT

32

XTAL

53

BTUN

52

HALF

CTR

51

FBOS

D50

ROSD

49

FB33

Y/C34

CHR35

APR36

UIN37

VIN38

YIN39

YOUT40

VOUT41

UOUT42

BOUT43

GOUT44

ROUT45

ISENS46

BOSD47

GOSD48

R321

1K

R318

15K

D301

DX00

45BM

R312

10K

C303

1uF

(160

V)

C312

220u

F(1

0V)

C315

100p

F

Q50

3

TX01

08BM

BC63

5

R824 75

R825 75

R826

75

Q10

032S

A103

7KQ

C101

5

330n

F

R103

415

0K

R103

34K

7

C101

410

uF(1

6V)

C101

0

100n

FR1

023

4K7

R806

1K

R101

810

K

R100

4

100

L100

268

uH

R315

10K

R100

5

100

C100

415

pF

R102

54K

7

R100

710

0

R102

60

R100

610

0

R102

44K

7 R807

1K

R102

14K

7

R100

83K

3

X100

18M

Hz

R100

110

0

C100

147

0uF

(6.3

V)

R100

2

100

R805

1K

D100

25V

6

R101

91K

5

R100

3

100

Q10

022S

C241

2

D807

5V6

Q10

01PH

2369

IC10

03IX

1003

7

C101

210

0nF

IC10

01S

T638

7T1/

FMI/T

R

DA444

DA343

DA242

DA141

DA040

VDD39

SCL38

SDA37

PC236

PC335

PC434

DA5

1

PB1

2

PB2

3

PB3

4

PB4

5

PB5

6

PB6

7

PA0

8

PA1

9

PA2

10

PA3

11

1212

PA413

PA514

PA615

PA716

VSS17

R18

G19

B20

BLANK21

HSYNC22

PC5

33

PC6

32

PC7

31

VS30

RESE

T29

XTAL

28

XTAL

27

2626

OSD

25

OSD

24

VSYN

C23

R103

239

K

J19

3K3

D804

5V6

D806

5V6

C222

C100

847

nF

C100

947

uF(1

0V)

C100

722

nF

6

11

10

Page 14

1 2 3 4 5 6 7

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Page 17SCHEMATIC DIAGRAM (01 Version).

17

37GQ-20H

R OUT

R IN

L OUT

L IN

SS

FS

V OUT

V IN

IFOU

T

IF O

UT

5V BL BH BU VT AGC

RG

B

SHARP

ELEC

TRON

ICA

ESPA

NA S

.A.

NOMB

RECO

DIGO

ESCA

LA

MODE

LOFE

CHA

REVI

SION

ESN

123456

FECH

A

1:1

QK

ITP

7B

MN

2

08-03-2000

87

*SQUAD

12

34

5

37GQ-20H

TU201

RTUNH0125BMZZ

RE

ALI

ZAD

OV

ER

IFIC

AD

OA

PR

OB

AD

O

DA

TE:

DA

TE:

DA

TE:

+5V

A

+8V

08-03-2000

MOD. HASTA No. 81

SERVICIO

SER

CLK

DAT

SCL

SDA

GND

J77

J80

J79

J91

J78

J92

JF17

JF18

SCART

TUNER

01-06-00

MOD. HASTA No.98

01-06-00

MOD. HASTA No.59

11-02-2000

MOD. HASTA No.76

24-02-2000

07-03-2000

MOD. HASTA No.79

MOD. HASTA No.100

AUDI

O

+5VA

G

B

BH

BU

VT

B

+5V

A

+5V

A

+8V

+8V

R

BL

PC3

PC2

SDA

SCL

PC5

FB

SS

AGC

..

..

.

1234561011

17

19

13

15

9

11

5

7

1

3

2

4

6

8

10

12

14

16

18

20

C202

1nF

L801

3.3u

H

(DF)

L802

3.3u

H

C805

1uF

C808

100n

F

C901

100n

F X801

B024

34.

43M

Hz

C211

10nF

C212

10nF

C213

10nF

C214

10nF

R201

220

R204

150

R212

4K7

R804

1K

R813

27K

R815

22K

R817

2K2

R818

27K

R601

2K2

R602

470

R821

8K2

C301

3.3u

F

C820

1uF

D801

DX00

45BM

D802

DX05

51

R211

47K

R512

10K

R513

68K

D505

DX05

51D5

06DX

0551

C609

470n

F(2

50V)

FZ01

74BM

D606

DX05

051N

4935

R403

220

R408

10K

R410

100K

R411

6K8

R412

6K8

R413 22

0(T

Q)

R414

220

(TQ)

F401

LN00

37

C401

1uF

C404

1nF

C405

1nF

C406

22uF

C408 47

uF(1

6V)

D401

7,5V D4

02

7,5V

Q401

2SC2

412

SC40

1CZ

2107

BM

21

(F)

N050

5CE

C201

33pF

L201

390m

H

R529

150

(1/2

W)

D404

7,5V

D405

7,5V

D406

7,5V

D407

7,5V

C205

1uF

C815

2.2u

F

C508

330n

F

C208

1uF

C207

10uF

(16V

)

R416

47

R407

75 (TQ)

R401

75 (TQ)

R219

2K2R2

20 100

L202

12uH

(DF)

R221 (0

)

R202

1K

C221

100p

FQ2

042S

C241

2

R814 1M

IC80

1S

TV22

36

IFPL

L17

GND

IF18

AM/F

MOUT

19

VCC

20

CVBS

21

AUDI

N22

IF1

23

IF2

24

VCC

25

CVBS

IN1

26

GND

27

CVBS

IN2

28

BS29

BEXT

30

AGC16

SAW15

PIFIN14

PIFIN13

AGC12

VIF11

AGC10

SIFIN9

SIFIN8

FMCAP7

AUDIO6

GND5

VCC4

SDA3

SCL2

SLPF1

SSC

64

HOUT

63

VERT

62

BCL

61

CVBO

UT2

60

VCC

59

CVBS

OUT1

58

GND

57

VAMP

56

CLPF

55

XTAL

54

XTAL

53

BTUN

52

HALF

CTR

51

0 )

R402

68 (1/2

W)

R420

0

R418 0

R417

2.2u

H

C409

1nF

D409

EX05

49BM

7V5

D410

EX54

9BM 7V

5

D411

EX05

49BM

7V5

27R1

028

100

R102

9

100

R103

0

100

R103

1

100

Q503

TX01

08BM

BC63

5

R819

100

R820

100

R826

75

C223

8,2p

F(5

00V)

SF20

1G1

952M

54

3

1 2

R515

100

D810 6V

8

R511

1.8

(1/2

W)

R404

75 (TQ)

C206

22nF

R409

22K

D808

5V6

D403

C5V6

D412

EX05

49BM

7V5

R816

2K7

C216

220n

F

R405

75 (TQ)

C822

100u

F(1

6V)

C802

100n

F

C801

470u

F(1

0V)

C804

100n

F

C210

100n

F

C812

100n

F

C203

330n

F(2

5V)

C813

4n7

C209

100u

F(6

.3V)

C803

470u

F(1

0V)

C817

100u

F(6

.3V)

R406 75

(1/4

W)

C818

100n

F

C814

1uF

D803

C5V1

CF20

1

FILC

0023

R415

100K

C816

4n7

C222

100n

F

C215

47uF

(10V

)

C224

220n

F

R213

33K

R203

1K

5

12

9

Page 15

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16

SCHEMATIC DIAGRAM (01 Version).

18

37GQ-20H

MARK *: SPARE PARTS DELIVERY SECTION

REF No. PARTS DESCRIPTION * CODE

PICTURE TUBE

VB34EAC0136*N CRT 14" A34EAC01X36 S BZ

RCILG0415BMZZ DEGAUSSING COIL 14" S AM

PRINTED WIRING BOARDS

PWB-A DUNTK7287CJV3 ADJUST CHASSIS 37GQ20H S --

PWB-B DUNTK7288CJV3 ADJUST CRT 37GQ20H S --

DSETU7287CJV3 ADJUST MOTHER SET 37GQ20H S BV

PWB-A MOTHER UNIT

TUNER

TU 0201 RTUNH0125BMZZ UV134/IEC UHF BALANCED S AY

INTEGRATED CIRCUITS

IC 0501 RH-IX1783BMZZ IC UA741CDR TEXAS INSTRUMENTS S AD

IC 0701 RH-IX1782BMZZ IC TDA16833 SIEMENS S AL

IC 0801 RH-IX1792BMZZ IC STV2236 SGS-THOMSON -PAL S AX

IC 1001 RH-IX1780BMZZ IC ST6387 SGS-THOMSON S BB

IC 1003 RH-IX0037CEZZ IC UPC574J 33V NEC S AD

IC 1004 VHIPST529C2-1 IC PST529C2 MITSUMI S AE

TRANSISTORS

Q 0204 VS2SC2412KQ-1 TRT 2SC2412 ROHM S AA

Q 0301 RH-TX0217BMZZ TRT BC337 PHILIPS S AB

Q 0302 RH-TX0216BMZZ TRT BC327 S AA

Q 0303 VS2SA1037KQ-1 TRT BC807 SMD S AA

Q 0304 VS2SC2412KQ-1 TRT 2SC2412 ROHM S AA

Q 0305 VS2SC2412KQ-1 TRT 2SC2412 ROHM S AA

Q 0401 VS2SC2412KQ-1 TRT 2SC2412 ROHM S AA

Q 0501 RH-TX0112BMZZ TRT BC636 S AB

Q 0502 RH-TX0108BMZZ TRT BC635 S AC

Q 0503 RH-TX0108BMZZ TRT BC635 S AC

Q 0505 VS2SA1037KQ-1 TRT BC807 SMD S AA

Q 0506 VS2SA1037KQ-1 TRT BC807 SMD S AA

Q 0507 VS2SC2412KQ-1 TRT 2SC2412 ROHM S AA

Q 0509 VS2SA1037KQ-1 TRT BC807 SMD S AA

Q 0601 RH-TX0132BMZZ TRT BU508DFI S AM

Q 0602 RH-TX0108BMZZ TRT BC635 S AC

Q 0603 RH-TX0112BMZZ TRT BC636 S AB

Q 0604 VS2SC2412KQ-1 TRT 2SC2412 ROHM S AA

Q 0701 VS2SC2412KQ-1 TRT 2SC2412 ROHM S AA

Q 0702 RH-TX0218BMZZ TRT BC337-40 PHILIPS S AA

Q 0703 RH-TX0218BMZZ TRT BC337-40 PHILIPS S AA

Q 0705 VS2SA1037KQ-1 TRT BC807 SMD S AA

Q 0706 VS2SA1037KQ-1 TRT BC807 SMD S AA

Q 0707 RH-TX0217BMZZ TRT BC337 PHILIPS S AB

!

!

PART LIST REPLACEMENT PARTS

Replacement parts which have special safety characteristics are identi-fied in this manual. Electrical components having such features are iden-tified by in the Replacement Part List.The use of a substitute replacement part which does not have the samesafety characteristics as the factory recommended is not permitted.Replacement parts not shown in this service manual may create shockfire, or other hazards.

HOW TO ORDER REPLACEMENT PARTSTo have your order completed promplty and corretly please supply thefollowing information.

1. MODEL NUMBER3. PART NO.5. CODE

2. REF. NO.4. DESCRIPTION6. QUANTITY

REF No. PARTS DESCRIPTION * CODE

Q 0708 VS2SC2412KQ-1 TRT 2SC2412 ROHM S AA

Q 1001 RH-TX0111BMZZ TRT PH-2369 PHILIPS S AB

Q 1002 VS2SC2412KQ-1 TRT 2SC2412 ROHM S AA

Q 1003 VS2SA1037KQ-1 TRT BC807 SMD S AA

DIODES

D 0301 RH-DX0045BMZZ DIODE 1N4148 S AA

D 0401 RH-EX0549BMZZ ZENER DIODE TZMC7V5 TFK SMD S AA

D 0402 RH-EX0549BMZZ ZENER DIODE TZMC7V5 TFK SMD S AA

D 0403 RH-EX0546BMZZ ZENER DIODE TZMC5V6 TFK SMD S AA

D 0404 RH-EX0549BMZZ ZENER DIODE TZMC7V5 TFK SMD S AA

D 0405 RH-EX0549BMZZ ZENER DIODE TZMC7V5 TFK SMD S AA

D 0406 RH-EX0549BMZZ ZENER DIODE TZMC7V5 TFK SMD S AA

D 0407 RH-EX0549BMZZ ZENER DIODE TZMC7V5 TFK SMD S AA

D 0409 RH-EX0549BMZZ ZENER DIODE TZMC7V5 TFK SMD S AA

D 0410 RH-EX0549BMZZ ZENER DIODE TZMC7V5 TFK SMD S AA

D 0411 RH-EX0549BMZZ ZENER DIODE TZMC7V5 TFK SMD S AA

D 0412 RH-EX0549BMZZ ZENER DIODE TZMC7V5 TFK SMD S AA

D 0503 RH-DX0503BMZZ DIODE 1N4933 S AB

D 0505 RH-DX0551BMZZ DIODE LL4148 TFK SMD S AA

D 0506 RH-DX0551BMZZ DIODE LL4148 TFK SMD S AA

D 0601 RH-DX0551BMZZ DIODE LL4148 TFK SMD S AA

D 0602 RH-DX0505BMZZ DIODE 1N4935 S AE

D 0603 RH-DX0045BMZZ DIODE 1N4148 S AA

D 0604 RH-DX0506BMZZ DIODE 1N4936 S AB

D 0605 RH-DX0504BMZZ DIODE 1N4934 S AB

D 0606 RH-DX0505BMZZ DIODE 1N4935 S AE

D 0607 RH-EX0549BMZZ ZENER DIODE TZMC7V5 TFK SMD S AA

D 0701 RH-DX0571BMZZ DIODE 1N4005 ACPA S AA

D 0702 RH-DX0571BMZZ DIODE 1N4005 ACPA S AA

D 0703 RH-DX0571BMZZ DIODE 1N4005 ACPA S AA

D 0704 RH-DX0571BMZZ DIODE 1N4005 ACPA S AA

D 0705 RH-DX0551BMZZ DIODE LL4148 TFK SMD S AA

D 0706 RH-EX0584BMZZ ZENER DIODE TZMBC6V2 TFK SMD 2% S AA

D 0707 RH-DX0505BMZZ DIODE 1N4935 S AE

D 0708 RH-DX0561BMZZ DIODE RGP15J FAGOR S AD

D 0709 RH-DX0590BMZZ DIODE MBR1100RL MOTOROLA S AD

D 0710 RH-DX0504BMZZ DIODE 1N4934 S AB

D 0711 RH-DX0503BMZZ DIODE 1N4933 S AB

D 0712 RH-EX0547BMZZ ZENER DIODE TZMC6V2 TFK SMD S AA

D 0714 RH-EX0546BMZZ ZENER DIODE TZMC5V6 TFK SMD S AA

D 0716 RH-DX0551BMZZ DIODE LL4148 TFK SMD S AA

D 0717 RH-DX0507BMZZ DIODE 1N4937 S AB

D 0718 RH-EX0546BMZZ ZENER DIODE TZMC5V6 TFK SMD S AA

D 0721 RH-DX0504BMZZ DIODE 1N4934 S AB

D 0722 RH-DX0504BMZZ DIODE 1N4934 S AB

D 0723 RH-DX0503BMZZ DIODE 1N4933 S AB

D 0801 RH-DX0045BMZZ DIODE 1N4148 S AA

D 0802 RH-DX0551BMZZ DIODE LL4148 TFK SMD S AA

D 0803 RH-EX0545BMZZ ZENER DIODE TZMC5V1 TFK SMD S AA

D 0804 RH-EX0546BMZZ ZENER DIODE TZMC5V6 TFK SMD S AA

D 0805 RH-EX0546BMZZ ZENER DIODE TZMC5V6 TFK SMD S AA

D 0806 RH-EX0546BMZZ ZENER DIODE TZMC5V6 TFK SMD S AA

D 0807 RH-EX0546BMZZ ZENER DIODE TZMC5V6 TFK SMD S AA

D 0808 RH-EX0546BMZZ ZENER DIODE TZMC5V6 TFK SMD S AA

D 0810 RH-EX0548BMZZ ZENER DIODE TZMC6V8 TFK SMD S AA

D 1001 RH-PX0104BMZZ LED ROJO S AC

D 1002 RH-EX0546BMZZ ZENER DIODE TZMC5V6 TFK SMD S AA

PACKAGED CIRCUITS

PR 0701 RMPTP0028CEZZ PTC RESISTOR S AE

X 0801 RCRSB0243BMZZ CRYSTAL 473.000.6835 (4,43 MHZ) A AE

COILS

L 0201 RCILP0227BMZZ COIL SMD 390NH LQN1HR39J S AE

L 0202 VP-DF120K0000 PEAK COIL 12UH 10% S AA

L 0301 VP-DF3R3K0000 PEAK COIL 3,3UH 10% S AA

L 0601 VP-CF4R7K0000 PEAK COIL 4,7UH 10% S AA

L 0602 VP-CF220K0000 PEAK COIL 22UH 10% S AA

L 0701 RCILF0160BMZZ AC.FILTER 30MH MURATA S AF

19

37GQ-20H

REF No. PARTS DESCRIPTION * CODE

L 0801 VP-DF3R3K0000 PEAK COIL 3,3UH 10% S AA

L 0802 VP-NM3R3MR19N COIL 3,3UH SMD S AC

L 1001 VP-DF100K0000 PEAK COIL 10UH 10% S AA

L 1002 VP-NM680K3R5N COIL 68UH SMD S AD

CERAMIC FILTERS

CF 0201 RFILC0023CEZZ SOUND FILTER (TAPED) S AC

SF 0201 RFILC0282BMZZ SAW FILTER J1952M 38.90MHZ S AM

X 1001 RFILC0121GEZZ FILTER CST8.00MTW MURATA S AD

TRANSFORMERS

T 0601 RTRNF2072BMZZ SMT 8228 001 3493 PHILIPS 14" S AW

T 0701 RTRNZ0580BMZZ SMT 8228 001 3500 PHILIPS 14" S AL

CAPACITORS

C 0201 VCCCTV1HH220J CERAM C 22PF 50V 2125SMD S AA

C 0202 VCKYTV1HB102K CERAM C 1NF 50V 2125SMD S AA

C 0203 VCKYTV1EF334Z CERAM C 330NF 25V 2125SMD S AB

C 0205 VCEAGA1HW105M ELEC C 1UF 20% 50V S AA

C 0206 VCKYTV1HF223Z CERAM C 22NF 50V 2125SMD S AA

C 0207 VCEAGA1CW106M ELEC C 10UF 20% 16V S AA

C 0208 VCEAGA1HW105M ELEC C 1UF 20% 50V S AA

C 0209 VCEAGA0JW107M ELEC C 100UF 20% 6,3V S AA

C 0210 VCKYTV1HF104Z CERAM C 100NF 50V 2125SMD S AA

C 0211 VCKYTV1HF103Z CERAM C 10NF 50V 2125SMD S AA

C 0212 VCKYTV1HF103Z CERAM C 10NF 50V 2125SMD S AA

C 0213 VCKYTV1HF103Z CERAM C 10NF 50V 2125SMD S AA

C 0214 VCKYTV1HF103Z CERAM C 10NF 50V 2125SMD S AA

C 0215 VCEAGA1AW476M ELEC C 47UF 20% 10V S AA

C 0216 VCKYTV1HF224Z CERAM C 220NF 50V 2125SMD S AB

C 0221 VCCCTV1HH101J CERAM C 100PF 50V 2125SMD S AA

C 0222 VCKYTV1HF104Z CERAM C 100NF 50V 2125SMD S AA

C 0223 VCCWPA2HL8R2C C 8,2PF 0,25 N1500 500V S AB

C 0224 VCKYTV1HB104K CERAM C 100NF 50V 2125SMD S AA

C 0225 VCKYTV1HB104K CERAM C 100NF 50V 2125SMD S AA

C 0301 VCEAGA1HW225M ELEC C 2,2UF 20% 50V S AA

C 0302 VCEAGA1HW105M ELEC C 1UF 20% 50V S AA

C 0303 VCEAGA2CW105M ELEC C 1UF 20% 160V S AB

C 0304 VCEAGA1CW107M ELEC C 100UF 20% 16V S AA

C 0307 VCEAGA1CW476M ELEC C 47UF 20% 16V S AA

C 0308 VCEAGA1HW105M ELEC C 1UF 20% 50V S AA

C 0309 VCKYTV1HF103Z CERAM C 10NF 50V 2125SMD S AA

C 0312 VCEAGA1AW227M ELEC C 220UF 20% 10V S AA

C 0315 VCCCTV1HH101J CERAM C 100PF 50V 2125SMD S AA

C 0401 VCEAGA1HW105M ELEC C 1UF 20% 50V S AA

C 0404 VCKYTV1HB102K CERAM C 1NF 50V 2125SMD S AA

C 0405 VCKYTV1HB102K CERAM C 1NF 50V 2125SMD S AA

C 0406 VCEAGA1HW226M ELEC C 22UF 20% 50V S AA

C 0408 VCEAGA1CW476M ELEC C 47UF 20% 16V S AA

C 0409 VCKYTV1HB102K CERAM C 1NF 50V 2125SMD S AA

C 0503 RC-FZ9334BMNJ POL FILM C 330NF 5% 63V S AB

C 0507 VCKYTV1HF224Z CERAM C 220NF 50V 2125SMD S AB

C 0508 RC-FZ9334BMNJ POL FILM C 330NF 5% 63V S AB

C 0510 VCCCTV1HH101J CERAM C 100PF 50V 2125SMD S AA

C 0601 RC-FZ0135BMZZ POLIP C B32650 6N8 1,5KV S AE

C 0603 VCEAGA1AW227M ELEC C 220UF 20% 10V S AA

C 0604 VCEAGA1AW227M ELEC C 220UF 20% 10V S AA

C 0605 RC-FZ9104BMNJ POL FILM C 100NF 5% 63V S AA

C 0606 VCKYTV1HF223Z CERAM C 22NF 50V 2125SMD S AA

C 0607 VCEAGA1VW107M ELEC C 100UF 20% 35V S AA

C 0608 VCEAGA2CW105M ELEC C 1UF 20% 160V S AB

C 0609 RC-FZ0174BMZZ POLIP C B32652 470NF 250V S AC

C 0610 VCKYTV1HB223K CERAM C 22NF 50V 2125SMD S AA

C 0701 RC-FZ0160BMZZ CAP B1133-D1474-M SIEMENS S AF

C 0702 RC-KZ0029CEZZ CERAM C 10NF 80,20% 250V S AB

C 0703 RC-KZ0029CEZZ CERAM C 10NF 80,20% 250V S AB

C 0704 RC-KZ0029CEZZ CERAM C 10NF 80,20% 250V S AB

C 0705 RC-EZ0140BMZZ ELEC C 47UF 400V TROBO S AK

C 0707 VCEAGA1CW106M ELEC C 10UF 20% 16V S AA

C 0708 VCKYTV1HB153K CERAM C 15NF 50V 2125SMD S AA

!

!

!

REF No. PARTS DESCRIPTION * CODE

C 0709 RC-KZ0160BMZZ CERAM C 2,2NF 4KV X1Y1 S AC

C 0710 VCEAGA1EW227M ELEC C 220UF 20% 25V S AA

C 0711 VCEAGH2CW107M ELEC C 100MF 20% 160V S AE

C 0712 VCEAGA1CW227M ELEC C 220UF 20% 16V S AA

C 0713 VCEAGA1CW227M ELEC C 220UF 20% 16V S AA

C 0714 VCEAGA1AW477M ELEC C 470UF 20% 10V S AA

C 0715 VCKYTV1HF104Z CERAM C 100NF 50V 2125SMD S AA

C 0717 VCEAGA1CW106M ELEC C 10UF 20% 16V S AA

C 0718 RC-FZ0156BMZZ C B32529-B6473K SIEMENS S AC

C 0722 VCEAGA1CW106M ELEC C 10UF 20% 16V S AA

C 0723 VCCCTV1HH101J CERAM C 100PF 50V 2125SMD S AA

C 0724 VCCCTV1HH101J CERAM C 100PF 50V 2125SMD S AA

C 0725 RC-KZ0160BMZZ CERAM C 2,2NF 4KV X1Y1 S AC

C 0726 VCEAGA1HW225M ELEC C 2,2UF 20% 50V S AA

C 0728 RC-KZ0035CEZZ CERAM C 220PF 2KV S AC

C 0801 VCEAGA1AW477M ELEC C 470UF 20% 10V S AA

C 0802 VCKYTV1HF104Z CERAM C 100NF 50V 2125SMD S AA

C 0803 VCEAGA1AW477M ELEC C 470UF 20% 10V S AA

C 0804 VCKYTV1HF104Z CERAM C 100NF 50V 2125SMD S AA

C 0805 VCEAGA1HW105M ELEC C 1UF 20% 50V S AA

C 0806 VCKYTV1HF104Z CERAM C 100NF 50V 2125SMD S AA

C 0807 VCKYTV1HF104Z CERAM C 100NF 50V 2125SMD S AA

C 0808 VCKYTV1HF104Z CERAM C 100NF 50V 2125SMD S AA

C 0809 VCKYTV1HF104Z CERAM C 100NF 50V 2125SMD S AA

C 0810 VCKYTV1HF104Z CERAM C 100NF 50V 2125SMD S AA

C 0811 VCKYTV1HF104Z CERAM C 100NF 50V 2125SMD S AA

C 0812 VCKYTV1HF104Z CERAM C 100NF 50V 2125SMD S AA

C 0813 VCKYTV1HB472K CERAM C 4,7NF 50V 2125SMD S AA

C 0814 VCEAGA1HW105M ELEC C 1UF 20% 50V S AA

C 0815 VCEAGA1HW225M ELEC C 2,2UF 20% 50V S AA

C 0816 VCKYTV1HB472K CERAM C 4,7NF 50V 2125SMD S AA

C 0817 VCEAGA0JW107M ELEC C 100UF 20% 6,3V S AA

C 0818 VCKYTV1HF104Z CERAM C 100NF 50V 2125SMD S AA

C 0819 VCEAGA1HW105M ELEC C 1UF 20% 50V S AA

C 0820 VCEAGA1HW105M ELEC C 1UF 20% 50V S AA

C 0901 VCKYTV1HF104Z CERAM C 100NF 50V 2125SMD S AA

C 1001 VCEAGA0JW477M ELEC C 470UF 20% 6,3V S AA

C 1002 VCCCTV1HH220J CERAM C 22PF 50V 2125SMD S AA

C 1003 VCCCTV1HH220J CERAM C 22PF 50V 2125SMD S AA

C 1004 VCCCTV1HH150J CERAM C 15PF 50V 2125SMD S AA

C 1005 VCCCTV1HH150J CERAM C 15PF 50V 2125SMD S AA

C 1006 VCCCTV1HH220J CERAM C 22PF 50V 2125SMD S AA

C 1007 VCKYTV1HF223Z CERAM C 22NF 50V 2125SMD S AA

C 1008 VCKYTV1HF473Z CERAM C 47NF 50V 2125SMD S AA

C 1009 VCEAGA1AW476M ELEC C 47UF 20% 10V S AA

C 1010 VCKYTV1HF104Z CERAM C 100NF 50V 2125SMD S AA

C 1011 VCKYTV1EF224Z CERAM C 220NF 25V 2125SMD S AA

C 1012 VCKYTV1HF104Z CERAM C 100NF 50V 2125SMD S AA

C 1014 VCEAGA1CW106M ELEC C 10UF 20% 16V S AA

C 1015 VCKYTV1EF334Z CERAM C 330NF 25V 2125SMD S AB

RESISTORS

R 0201 VRS-TV1JD221J 2125 220 OHM 5% 1/10W SMD S AA

R 0202 VRS-TV1JD102J 2125 1KOHM 5% 1/10W SMD S AA

R 0203 VRS-TV1JD102J 2125 1KOHM 5% 1/10W SMD S AA

R 0204 VRS-TV1JD151J 2125 150 OHM 5% 1/10W SMD S AA

R 0211 VRS-TV1JD473J 2125 47KOHM 5% 1/10W SMD S AA

R 0212 VRS-TV1JD472J 2125 4.7KOHM 5% 1/10W SMD S AA

R 0213 VRS-TV1JD333J 2125 33KOHM 5% 1/10W SMD S AA

R 0219 VRS-TV1JD222J 2125 2,2KOHM 5% 1/10W SMD S AA

R 0220 VRS-TV1JD101J 2125 100 OHM 5% 1/10W SMD S AA

R 0221 VRS-TV1JD000J 2125 0 OHM 5% 1/10W SMD S AA

R 0222 VRS-TV1JD224J 2125 220KOHM 5% 1/10W SMD S AA

R 0301 VRD-RA2HD472J RES 4.7KOHM 5% 1/2W S AA

R 0302 VRD-RA2HD472J RES 4.7KOHM 5% 1/2W S AA

R 0303 VRD-RA2BE333J RES 33KOHM 5% 1/8W S AA

R 0304 RR-XZ0204BMZZ FUS RES 2R2 TAP 5% 1/2W S AA

R 0305 VRD-RA2HD472J RES 4.7KOHM 5% 1/2W S AA

R 0306 VRS-TV1JD104J 2125 100KOHM 5% 1/10W SMD S AA

R 0307 VRS-TV1JD103J 2125 10KOHM 5% 1/10W SMD S AA

!

!

20

37GQ-20H

REF NoPARTS DESCRIPTION * CODE

R 0310 VRS-TV1JD101J 2125 100 OHM 5% 1/10W SMD S AA

R 0311 VRS-TV1JD104J 2125 100KOHM 5% 1/10W SMD S AA

R 0312 VRS-TV1JD103J 2125 10KOHM 5% 1/10W SMD S AA

R 0313 VRS-TV1JD561J 2125 560 OHM 5% 1/10W SMD S AA

R 0314 VRS-TV1JD102J 2125 1KOHM 5% 1/10W SMD S AA

R 0315 VRD-RA2BE103J RES 10KOHM 5% 1/8W S AA

R 0318 VRS-TV1JD153J 2125 15KOHM 5% 1/10W SMD S AA

R 0321 VRS-TV1JD102J 2125 1KOHM 5% 1/10W SMD S AA

R 0401 VRS-TQ2BD750J OX RE 75 OHM 5% 1/8W SMD S AA

R 0402 VRD-RA2HD680J RES 68 OHM 5% 1/2W S AA

R 0403 VRS-TV1JD221J 2125 220 OHM 5% 1/10W SMD S AA

R 0404 VRS-TQ2BD750J OX RE 75 OHM 5% 1/8W SMD S AA

R 0405 VRD-RA2EE750J RES 75 OHM 5% 1/4W S AA

R 0406 VRD-RA2EE750J RES 75 OHM 5% 1/4W S AA

R 0407 VRS-TQ2BD750J OX RE 75 OHM 5% 1/8W SMD S AA

R 0408 VRS-TV1JD103J 2125 10KOHM 5% 1/10W SMD S AA

R 0409 VRS-TV1JD223J 2125 22KOHM 5% 1/10W SMD S AA

R 0410 VRS-TV1JD104J 2125 100KOHM 5% 1/10W SMD S AA

R 0411 VRS-TV1JD682J 2125 6.8KOHM 5% 1/10W SMD S AA

R 0412 VRS-TV1JD682J 2125 6.8KOHM 5% 1/10W SMD S AA

R 0413 VRS-TQ2BD221J OX RE 220 OHM 5% 1/8W SMD S AA

R 0414 VRS-TQ2BD221J OX RE 220 OHM 5% 1/8W SMD S AA

R 0415 VRS-TV1JD104J 2125 100KOHM 5% 1/10W SMD S AA

R 0416 VRS-TV1JD470J 2125 47 OHM 5% 1/10W SMD S AA

R 0417 VP-NM2R2MR16N COIL 2,2UH SMD S AC

R 0418 VRS-TV1JD000J 2125 0 OHM 5% 1/10W SMD S AA

R 0420 VRS-TV1JD000J 2125 0 OHM 5% 1/10W SMD S AA

R 0502 VRD-RA2BE102J RES 1KOHM 5% 1/8W S AA

R 0509 VRS-TV1JD102J 2125 1KOHM 5% 1/10W SMD S AA

R 0510 RR-XZ0200BMZZ FUS RES 1R0 TAP 5% 1/2W S AB

R 0511 VRD-RA2HD1R8J RES 1,8 OHM 5% 1/2W S AA

R 0512 VRS-TV1JD103J 2125 10KOHM 5% 1/10W SMD S AA

R 0513 VRS-TV1JD683J 2125 68KOHM 5% 1/10W SMD S AA

R 0515 VRS-TV1JD101J 2125 100 OHM 5% 1/10W SMD S AA

R 0516 VRD-RA2BE102J RES 1KOHM 5% 1/8W S AA

R 0517 VRS-TV1JD184J 2125 180KOHM 5% 1/10W SMD S AA

R 0519 VRS-TV1JD822J 2125 8,2KOHM 5% 1/10W SMD S AA

R 0523 VRD-RA2BE561J RES 560 OHM 5% 1/8W S AA

R 0524 VRS-TV1JD392J 2125 3.9KOHM 5% 1/10W SMD S AA

R 0525 VRS-TV1JD121J 2125 120 OHM 5% 1/10W SMD S AA

R 0529 VRD-RA2HD151J RES 150 OHM 5% 1/2W S AA

R 0530 VRD-RA2BE184J RES 180KOHM 5% 1/8W S AA

R 0533 VRS-TV1JD124J 2125 120KOHM 5% 1/10W SMD S AA

R 0534 VRS-TV1JD152J 2125 1.5KOHM 5% 1/10W SMD S AA

R 0535 VRS-TV1JD824J 2125 820KOHM 5% 1/10W SMD S AA

R 0536 VRD-RA2BE472J RES 4,7KOHM 5% 1/8W S AA

R 0537 VRD-RA2BE153J RES 15KOHM 5% 1/8W S AA

R 0538 VRS-TV1JD222J 2125 2,2KOHM 5% 1/10W SMD S AA

R 0601 VRS-TV1JD222J 2125 2,2KOHM 5% 1/10W SMD S AA

R 0602 VRS-TV1JD471J 2125 470 OHM 5% 1/10W SMD S AA

R 0603 VRD-RA2HD331J RES 330 OHM 5% 1/2W S AA

R 0604 VRD-RA2HD471J RES 470 OHM 5% 1/2W S AA

R 0605 VRD-RA2HD6R8J RES 6,8 OHM 5% 1/2W S AA

R 0606 VRD-RA2HD6R8J RES 6,8 OHM 5% 1/2W S AA

R 0607 RR-XZ0200BMZZ FUS RES 1R0 TAP 5% 1/2W S AB

R 0608 VRD-RA2BE183J RES 18KOHM 5% 1/8W S AA

R 0609 VRD-RA2HD2R2J RES 2.2 OHM 5% 1/2W S AA

R 0610 VRD-RA2HD270J RES 27 OHM 5% 1/2W S AA

R 0611 VRD-RA2HD270J RES 27 OHM 5% 1/2W S AA

R 0612 VRN-VV3AB2R7J MET FILM R 2.7 OHM 5% 1W S AA

R 0613 VRD-RA2BE153J RES 15KOHM 5% 1/8W S AA

R 0614 VRS-TV1JD561J 2125 560 OHM 5% 1/10W SMD S AA

R 0615 RR-XZ0212BMZZ FUS RES 10R TAP 5% 1/2W S AB

R 0616 RR-XZ0242BMZZ FUS RES 3K3 TAP 5% 1/2W S AB

R 0617 VRD-RA2BE102J RES 1KOHM 5% 1/8W S AA

R 0701 VRD-RA2HD474J RES 470KOHM 5% 1/2W S AA

R 0702 VRD-RA2HD474J RES 470KOHM 5% 1/2W S AA

R 0703 VRD-RA2BE220J RES 22 OHM 5% 1/8W S AA

R 0704 VRS-TV1JD101J 2125 100 OHM 5% 1/10W SMD S AA

R 0705 VRS-TQ2BD331F OX RE 330 OHM 1% 1/8W SMD S AA

!

!

!

!

REF No PARTS DESCRIPTION * CODE

R 0706 VRS-TV1JD681J 2125 680 OHM 5% 1/10W SMD S AA

R 0707 VRC-UA2HG825K SOLID R 8,2MOHM 10% 1/2W S AB

R 0708 VRC-UA2HG825K SOLID R 8,2MOHM 10% 1/2W S AB

R 0710 VRD-RA2HD221J RES 220 OHM 5% 1/2W S AA

R 0711 VRS-TV1JD220J 2125 22 OHM 5% 1/10W SMD S AA

R 0714 VRD-RA2HD821J RES 820 OHM 5% 1/2W S AA

R 0715 VRS-TV1JD100J 2125 10 OHM 5% 1/10W SMD S AA

R 0716 VRD-RA2HD473J RES 47KOHM 5% 1/2W S AA

R 0718 VRD-RA2BE472J RES 4,7KOHM 5% 1/8W S AA

R 0719 VRS-TV1JD272J 2125 2,7KOHM 5% 1/10W SMD S AA

R 0720 VRD-RA2HD561J RES 560 OHM 5% 1/2W S AA

R 0721 VRS-TV1JD220J 2125 22 OHM 5% 1/10W SMD S AA

R 0722 VRS-TV1JD121J 2125 120 OHM 5% 1/10W SMD S AA

R 0723 VRS-TV1JD102J 2125 1KOHM 5% 1/10W SMD S AA

R 0724 VRS-TV1JD151J 2125 150 OHM 5% 1/10W SMD S AA

R 0725 VRS-TV1JD391J 2125 390 OHM 5% 1/10W SMD S AA

R 0726 VRS-TQ2BD000J 3216 0 OHM 5% 1/8W SMD S AA

R 0801 VRS-TV1JD221J 2125 220 OHM 5% 1/10W SMD S AA

R 0802 VRS-TV1JD221J 2125 220 OHM 5% 1/10W SMD S AA

R 0803 VRS-TV1JD221J 2125 220 OHM 5% 1/10W SMD S AA

R 0804 VRS-TV1JD102J 2125 1KOHM 5% 1/10W SMD S AA

R 0805 VRS-TV1JD102J 2125 1KOHM 5% 1/10W SMD S AA

R 0806 VRS-TV1JD102J 2125 1KOHM 5% 1/10W SMD S AA

R 0807 VRS-TV1JD102J 2125 1KOHM 5% 1/10W SMD S AA

R 0808 VRS-TV1JD102J 2125 1KOHM 5% 1/10W SMD S AA

R 0809 VRS-TV1JD473J 2125 47KOHM 5% 1/10W SMD S AA

R 0810 VRS-TV1JD271J 2125 270 OHM 5% 1/10W SMD S AA

R 0811 VRS-TV1JD271J 2125 270 OHM 5% 1/10W SMD S AA

R 0812 VRS-TV1JD271J 2125 270 OHM 5% 1/10W SMD S AA

R 0813 VRS-TV1JD273J 2125 27KOHM 5% 1/10W SMD S AA

R 0814 VRS-TV1JD105J 2125 1MOHM 5% 1/10W SMD S AA

R 0815 VRS-TV1JD223J 2125 22KOHM 5% 1/10W SMD S AA

R 0816 VRD-RA2BE272J RES 2,7KOHM 5% 1/8W S AA

R 0817 VRS-TV1JD222J 2125 2,2KOHM 5% 1/10W SMD S AA

R 0818 VRS-TV1JD153J 2125 15KOHM 5% 1/10W SMD S AA

R 0819 VRD-RA2BE101J RES 100 OHM 5% 1/8W S AA

R 0820 VRD-RA2BE101J RES 100 OHM 5% 1/8W S AA

R 0821 VRS-TV1JD822J 2125 8,2KOHM 5% 1/10W SMD S AA

R 0822 VRS-TV1JD334J 2125 330KOHM 5% 1/10W SMD S AA

R 0823 VRS-TV1JD102J 2125 1KOHM 5% 1/10W SMD S AA

R 0824 VRS-TV1JD750J 2125 75 OHM 5% 1/10W SMD S AA

R 0825 VRS-TV1JD750J 2125 75 OHM 5% 1/10W SMD S AA

R 0826 VRS-TV1JD750J 2125 75 OHM 5% 1/10W SMD S AA

R 1001 VRS-TV1JD101J 2125 100 OHM 5% 1/10W SMD S AA

R 1002 VRS-TV1JD101J 2125 100 OHM 5% 1/10W SMD S AA

R 1003 VRS-TV1JD101J 2125 100 OHM 5% 1/10W SMD S AA

R 1004 VRS-TV1JD101J 2125 100 OHM 5% 1/10W SMD S AA

R 1005 VRS-TV1JD101J 2125 100 OHM 5% 1/10W SMD S AA

R 1006 VRS-TV1JD101J 2125 100 OHM 5% 1/10W SMD S AA

R 1007 VRS-TV1JD101J 2125 100 OHM 5% 1/10W SMD S AA

R 1008 VRS-TV1JD332J 2125 3.3KOHM 5% 1/10W SMD S AA

R 1009 VRS-TV1JD102J 2125 1KOHM 5% 1/10W SMD S AA

R 1010 VRS-TV1JD273J 2125 27KOHM 5% 1/10W SMD S AA

R 1011 VRD-RA2HD472J RES 4.7KOHM 5% 1/2W S AA

R 1012 VRD-RA2HD472J RES 4.7KOHM 5% 1/2W S AA

R 1013 VRD-RA2HD472J RES 4.7KOHM 5% 1/2W S AA

R 1014 VRS-TV1JD223J 2125 22KOHM 5% 1/10W SMD S AA

R 1015 VRS-TV1JD223J 2125 22KOHM 5% 1/10W SMD S AA

R 1016 VRS-TV1JD331J 2125 330 OHM 5% 1/10W SMD S AA

R 1017 VRS-TV1JD271J 2125 270 OHM 5% 1/10W SMD S AA

R 1018 VRS-TV1JD103J 2125 10KOHM 5% 1/10W SMD S AA

R 1019 VRS-TV1JD102J 2125 1KOHM 5% 1/10W SMD S AA

R 1020 VRS-TV1JD562J 2125 5,6KOHM 5% 1/10W SMD S AA

R 1021 VRS-TV1JD472J 2125 4.7KOHM 5% 1/10W SMD S AA

R 1022 VRS-TV1JD472J 2125 4.7KOHM 5% 1/10W SMD S AA

R 1023 VRS-TV1JD472J 2125 4.7KOHM 5% 1/10W SMD S AA

R 1024 VRS-TV1JD472J 2125 4.7KOHM 5% 1/10W SMD S AA

R 1025 VRS-TV1JD472J 2125 4.7KOHM 5% 1/10W SMD S AA

R 1026 VRS-TV1JD000J 2125 0 OHM 5% 1/10W SMD S AA

R 1027 VRD-RA2BE101J RES 100 OHM 5% 1/8W S AA

!

!

21

37GQ-20H

1.6

1

1.41.31.21.5

2

REF No PARTS DESCRIPTION * CODE

R 1028 VRD-RA2BE101J RES 100 OHM 5% 1/8W S AA

R 1029 VRD-RA2BE101J RES 100 OHM 5% 1/8W S AA

R 1030 VRS-TV1JD101J 2125 100 OHM 5% 1/10W SMD S AA

R 1031 VRS-TV1JD101J 2125 100 OHM 5% 1/10W SMD S AA

R 1032 VRS-TV1JD393J 2125 39KOHM 5% 1/10W SMD S AA

R 1033 VRS-TV1JD472J 2125 4.7KOHM 5% 1/10W SMD S AA

R 1034 VRS-TV1JD154J 2125 150KOHM 5% 1/10W SMD S AA

MISCELLANEOUS PARTS

F 0701 QFS-C3226CEZZ FUSE T3.15AH 250V S AE

F 0701 QFSHD1001BMZZ FUSE HOLD.EYF52BC=PANASON S AA

F 0701 QFSHD1002BMZZ FUSE HOLD.EYF52BC=PANASON S AA

FB 0301 RBLN-0037CEZZ BALUN FBA04HA90088-00 T/Y S AA

FB 0701 RBLN-0020CEZZ BALUNE S AB

FB 0702 RBLN-0037CEZZ BALUN FBA04HA90088-00 T/Y S AA

F 0401 RBLN-0037CEZZ BALUN FBA04HA90088-00 T/Y S AA

(H) QCNW-2834BMZZ WIRE (H) 14" S AD

(K) QCNW-2835BMZZ WIRE (K) 14" S AE

A 0000 QPLGN0304CEZZ PLUG S AB

F 0000 QPLGN0505CEZZ PLUG S AB

G 0000 QPLGN0207CEZZ PLUG S AA

J 0019 VRS-TV1JD332J 2125 3.3KOHM 5% 1/10W SMD S AA

J 0054 VRS-TV1JD000J 2125 0 OHM 5% 1/10W SMD S AA

J 0056 VRS-TQ2BD000J 3216 0 OHM 5% 1/8W SMD S AA

J 0061 VRS-TV1JD000J 2125 0 OHM 5% 1/10W SMD S AA

J 0062 VRS-TV1JD000J 2125 0 OHM 5% 1/10W SMD S AA

J 0067 RC-FZ4105BMNJ POL FILM C 1MF 50V 5% ECQ-V AE

JF 0016 VRS-TV1JD000J 2125 0 OHM 5% 1/10W SMD S AA

JF 0017 VRS-TV1JD000J 2125 0 OHM 5% 1/10W SMD S AA

JF 0018 VRS-TV1JD000J 2125 0 OHM 5% 1/10W SMD S AA

JL 0005 QCNW-3055BMZZ WIRE BETWEEN GNDS CA-1 S AB

RMC0001 RRMCU0222CEZZ R/C RECEIVER S AG

S 0000 QPLGN0241CEZZ PLUG S AA

S 0701 QSW-P0588CEZZ SWITCH ESB91632A-V S AM

S 1001 QSW-K0079GEZZ TACTILE SWITCH S AA

S 1002 QSW-K0079GEZZ TACTILE SWITCH S AA

S 1003 QSW-K0079GEZZ TACTILE SWITCH S AA

S 1004 QSW-K0079GEZZ TACTILE SWITCH S AA

SC 0401 QSOCZ2107BMZZ SOCKET S AE

PWB-B SOCKET UNIT

TRANSISTORS

Q 0870 RH-TX0181BMZZ TRT BF422 TOSHIBA S AB

Q 0871 RH-TX0181BMZZ TRT BF422 TOSHIBA S AB

Q 0872 RH-TX0181BMZZ TRT BF422 TOSHIBA S AB

Q 0883 RH-TX0180BMZZ TRT BF421 TOSHIBA S AB

Q 0885 RH-TX0180BMZZ TRT BF421 TOSHIBA S AB

Q 0887 RH-TX0180BMZZ TRT BF421 TOSHIBA S AB

DIODES

D 0811 RH-DX0551BMZZ DIODE LL4148 TFK SMD S AA

D 0812 RH-DX0551BMZZ DIODE LL4148 TFK SMD S AA

D 0860 RH-DX0551BMZZ DIODE LL4148 TFK SMD S AA

D 0861 RH-DX0551BMZZ DIODE LL4148 TFK SMD S AA

D 0862 RH-DX0551BMZZ DIODE LL4148 TFK SMD S AA

COILS

L 0861 VP-CF120K0000 PEAK COIL 12UH 10% S AC

CAPACITORS

C 0860 VCCCTV1HH471J CERAM C 470PF 50V 2125SMD S AA

C 0861 VCCCTV1HH471J CERAM C 470PF 50V 2125SMD S AA

C 0862 VCCCTV1HH471J CERAM C 470PF 50V 2125SMD S AA

C 0871 VCCCTV1HH471J CERAM C 470PF 50V 2125SMD S AA

C 0872 VCCCTV1HH471J CERAM C 470PF 50V 2125SMD S AA

C 0873 VCCCTV1HH471J CERAM C 470PF 50V 2125SMD S AA

C 0874 VCKYPA2HB102K CERAM C 1NF 10% 500V S AA

C 0876 VCKYPB3DE472Z C DE1110-1E472Z2K MURATA S AC

!

!

REF No PARTS DESCRIPTION * CODE

C 0878 VCEAGA2DW106M ELEC C 10UF 20% 200V S AC

C 0879 VCCCPA1HH101J C CAPACITOR S AA

RESISTORS

R 0862 VRS-PU3DB153J MET OX RES 15 KOHM 5% 2W S AC

R 0864 VRS-PU3DB153J MET OX RES 15 KOHM 5% 2W S AC

R 0866 VRS-PU3DB153J MET OX RES 15 KOHM 5% 2W S AC

R 0879 VRS-TV1JD471J 2125 470 OHM 5% 1/10W SMD S AA

R 0880 VRS-TV1JD471J 2125 470 OHM 5% 1/10W SMD S AA

R 0881 VRS-TV1JD471J 2125 470 OHM 5% 1/10W SMD S AA

R 0883 VRD-RA2HD272J RES 2,7KOHM 5% 1/2W S AA

R 0885 VRD-RA2HD272J RES 2,7KOHM 5% 1/2W S AA

R 0887 VRD-RA2HD272J RES 2,7KOHM 5% 1/2W S AA

R 0888 VRS-TV1JD471J 2125 470 OHM 5% 1/10W SMD S AA

R 0892 VRS-TV1JD102J 2125 1KOHM 5% 1/10W SMD S AA

R 0893 VRS-TV1JD102J 2125 1KOHM 5% 1/10W SMD S AA

R 0894 VRS-TV1JD102J 2125 1KOHM 5% 1/10W SMD S AA

R 0898 VRS-TV1JD471J 2125 470 OHM 5% 1/10W SMD S AA

R 0899 VRS-TV1JD471J 2125 470 OHM 5% 1/10W SMD S AA

MISCELLANEOUS PARTS

SC 0881 QSOCV0842CEZZ CRT SOCKET S AG

L 0003 QTIPM0017CEFM TIP S AA

MISCELLANEOUS PARTS

CACCB5007BMV0 A.C CORD S AU

VSP0080PBL6YS SPEAKER 2.0W 32 OHM DAIWA S AH

TINS-6825BMN0 OWNERS MANUAL 37GQ20H S AC

TINS-6833BMN0 QUICK GUIDE (ENGLISH) S AA

RRMCG1059BMSA REMOTE CONTROL UNIT S AS

QANTL0001BMZZ LOOP ANTENNA ELDOR S AM

CABINET PARTS

1 CCABA1284BMV0 CABINET SET 37GQ20SDE S AX

1.2 HBDGB1017BMSB SHARP BADGE(37EM-24S) S AC

1.3 HDECQ0036BMSA R/C DECORATION S AB

1.4 HDECQ0035BMSA LED DECORATION S AB

1.5 JBTN-1047BMSA UP/DOWN BUTTON(37EM-24S) S AD

1.6 JBTN-1046BMSA POWER BUTTON(37EM-24S) S AB

2 GCABB1107BMKA REAR CAB. 37GQ-20S S AU

!

!

!

22

37GQ-20H

TROUBLESHOOTING TABLES.

NO PICTURE

NO

Check Q1001, IC1001, IC1003

Check the tuner supply and band biases. Both

must be approx. 5V DC

Normal

YESIs tuning voltage

normal at Pin (2) of Tuner?

Check Picture setting by R/C. Signal

should be received.

-Check the AGC Voltage: Pin (1) of Tuner.-Check the SAW Filter: SF201

23

37GQ-20H

NO SOUND

Check Sound setting byR/C. Signal should be

received.

NO YES

Check D707, C710

NO

IsAudio Amplifier

muted?

Check R304, Q301, Q302

NO

Check IC801, C301

YES

YES

Check IC1001, Q305

Does Sound Signal

appear at Pin(6) of IC801?

Does approx. 20V DC

appear on C710?

24

37GQ-20H

NO RASTER

Check F701 NormalFuse Blown

Normal

Replace Fuse

Fuse Blown again

Check IC701

Normal

Abnormal

Check Q601, C711

Check D708, D717

Normal

Check R705, R706,R715, D706

Normal

Check CRT connectorK1... K5 bias

Normal Abnormal

Check C878 Check IC801Check Q601, C711

Check Voltage on C705(Approx. 325V DC)

Check D701, D702, D703,D704, C705.

Check Voltage on C711(Approx. 105V DC)

Approx. 0V

25

37GQ-20H

NO VERTICAL SCAN

YES NO

Check D709, D710, IC501

DEFECTIVE VERTICAL AMP.

AND VERTICAL LINEARITY

Readjust Vertical Size.

Check D505, D506Check Q505, Q507, Q509

NEITHER VERTICAL NOR

HORIZONTAL SYNCHRONIZATION

Check IC801, C815, C816, R818

Vertical size is abnormal Vertical linearity is abnormal

Is IC501bias normal?

Check R510, Q501,Q502, Q503

26

37GQ-20H

NO SPECIFIC COLOUR

Issome colour

produced in B/W Broadcast reception?

YESNO

Check IC801, C812,C813, R813, X801

Is the white

balance properly adjusted?

YES NO

Readjust The White Balance.

The Picture Colour isBlue or Yellow.

The Picture Colour isgreen or magenta.

The Picture Colour isRed or cyan.

Check Q871, Q883 and their adjacent circuits.

Check Q870, Q885 and their adjacent circuits.

Check Q872, Q887 and their adjacent circuits.

UNLOCKED COLOUR

(NO COLOUR SYNCHRONIZATION)

Check setting of Colour Standard in Service

Mode.

Normal

Check IC801, C812,C813, R813, X801

27

37GQ-20H

NOTES:

22

37GQ-20FP

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