Sharp 70GS-64SDE Service Manual
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Sharp 70GS-64SDE Service Manual

Sharp 70GS-64SDE Service Manual

Pal system colour television da-100 chassis
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ELECTRICAL SPECIFICATION.......................3
IMPORTANT SERVICE NOTES.......................4
ADJUSTMENTS PROCEDURES.....................5
PRINTED WIRING BOARDS..........................10
COMPONENT LOCATION TABLES...............15

SHARP CORPORATION

SERVICE MANUAL

PAL SYSTEM COLOUR TELEVISION
70GS-64S
MODEL
In the interests of user safety (required by safety
regulations in some countries) the set should restored
to its original condition and only parts identical to
those specified should be used.
CONTENTS
SCHEMATIC DIAGRAM..................................21
STEREO LED FLASHING CODE...................29
BLOCK DIAGRAM...........................................30
PARTS LISTING..............................................32
ALTERNATIVE PARTS....................................41
1
70GS-64S
SEJB70GS64S00
Issued: 14th Dec 2001
DA-100
CHASSIS
This document has been published to
be used for after sales service only.
DE/IT

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  • Page 1: Table Of Contents

    SCHEMATIC DIAGRAM........21 ELECTRICAL SPECIFICATION.......3 STEREO LED FLASHING CODE....29 IMPORTANT SERVICE NOTES.......4 BLOCK DIAGRAM...........30 ADJUSTMENTS PROCEDURES.....5 PARTS LISTING..........32 PRINTED WIRING BOARDS......10 ALTERNATIVE PARTS........41 COMPONENT LOCATION TABLES....15 SHARP CORPORATION This document has been published to be used for after sales service only.
  • Page 2 70GS-64S SERVICE MANUAL UPDATE LOG SHEET Technical Report No. Application Cause / Solution Part No. Page No. Data /Serial No. Technical Bulletin No. Use this page to keep any special servicing information as Technical Report (Bulletin), Technical Information, etc. If only part number changes are required, just change part number directly the part number in the Parts Listing Section. If you need more information, please refer to the Technical Report (Bulletin).

  • Page 3: Electrical Specification

    X=0.290 Y=0.300 Specifications are subject to change without prior notice. MODEL DESTINATION (Operation Manual languages). 70GS-64SDE: Dutch 70GS-64SIT: Italian. WARNING The chassis in this receiver is partially hot. Use an isolation transformer between the line cord plug and power receptacle, when servicing this chassis.

  • Page 4: Important Servicing Notes

    70GS-64S IMPORTANT SERVICING NOTES Only qualified service personnel are allowed to carry out maintenance and repair of this receiver. SERVICING OF HIGH VOLTAGE SYSTEM AND CRT It is important that the static charge is removed from the high voltage system when carrying out work on the receiver.

  • Page 5: Adjustment Procedures

    70GS-64S ADJUSTMENT PROCEDURES All adjustments to this chassis, except for focus, are carried out in the service mode. • • • • • SERVICE MODE The service mode is provided to enable the engineer to correctly set up the receiver to the CRT fitted in the set. Note that these adjustments may vary from one receiver to another.
  • Page 6 70GS-64S The following geometry adjustments can be carried out. Detailed instructions on how to execute these are given on the following pages Horizontal Vertical • Horizontal Shift • Vertical Amplitude • E-W Width • S Correction • Pin Phase • Vertical Shift •...
  • Page 7 70GS-64S Lower Corner Correction Adjust the Lower Corner Correction so that the picture is centred. The effect of this adjustment is shown in figure 7. • When the volume up button is pressed, side pincushion changes from pincushion to barrel shape. •...
  • Page 8 70GS-64S • When the volume down button is pressed the top and bottom scanning decreases and the centre scanning increases. • Press the stand-by button on the remote control to store. Vertical Shift Adjust the Vertical Shift so that the picture is centred. The effect of this adjustment is shown in figure 13.
  • Page 9 5. If another NVM value has to be changed, use the channel down button to select the page or position and repeat as necessary. Note: DO NOT change any NVM data, unless you have been advised to do so by a Sharp representative. If data is incorrectly changed, serious damage may occur to the receiver. Contrast Adjustments Three types of contrast levels can be varied as listed below: •...
  • Page 10 70GS-64S MOTHER UNIT (F7240N7A) PRINTED WIRING BOARD. Component side. K7240BM R778 IC1008 LP701 R703 D1001 D1002 (SW2) S702 S704 S703 S705 C701 FB1002 R791 R721 Q718 J344 C707 R790 C706 (OPC) (ST) L701 R792 R1036 CF701 Q711 IC704 IC701 C724 JF53 JF54 J363...
  • Page 11 70GS-64S MOTHER UNIT (F7240N7A) PRINTED WIRING BOARD. Component side. ITP7240BMN7 L317 C353 L352 J401 C363 C361 (SS) C356 C352 L318 IC301 (FV). C351 C368 C373 L350 C431 C430 (CC) L351 C341 F7240BMN7 C372 L315 C377 (L3) L316 IC302 IC2401 R359 C365 R1027 C382...
  • Page 12 70GS-64S MOTHER UNIT (F7240N7A) PRINTED WIRING BOARD. Copper side. QKITP7240BMN7 L317 R353 IC301 C337 L352 C359 C338 C381 J401 C336 (SS) C387 R310 D426 C356 R352 C354 J345 R317 R351 C350 R311 C364 Q305 C352 C320 C351 L318 R362 R312 L353 C375 C373...
  • Page 13 70GS-64S MOTHER UNIT (F7240N7A) PRINTED WIRING BOARD. Copper side. J313 D724 M1000 LP701 R778 D1002 Q710 R789 R703 C733 C732 C731 C730 R738 S701 R1038 R791 J344 R788 R790 R721 Q718 IC702 R787 C707 Q708 R735 JF47 R792 R758 R1036 CF701 R752 Q711...
  • Page 14 70GS-64S DIGITAL MODULE UNIT PRINTED WIRING BOARD. C6034 C6069 (RGB) (KA) IC6002 X6001 C6035 C6021 C6030 R6050 C6027 ESPA¥A C6065 F7313BMN0 K7313BM C6023 X1003 Y(C) Y(A) Y(B) Component side. C6018 C6069 + C6232 C6230 (RGB) (KA) L6001 L6009 X6001 R6054 L6005 R6008 C6033...
  • Page 15 70GS-64S MOTHER UNIT (F7240N7A) PWB COMPONENT LOCATION TABLES. Component Side. 5HI 1R <XP 5HI 1R <XP 5HI 1R <XP 5HI 1R <XP 5HI 1R <XP 5HI 1R <XP   &   &   '   -   -  ...
  • Page 16 70GS-64S MOTHER UNIT (F7240N7A) PWB COMPONENT LOCATION TABLES. Component Side. 5HI 1R <XP 5HI 1R <XP 5HI 1R <XP 5HI 1R <XP 5HI 1R <XP 5HI 1R <XP -   -)   -)   /   5   5...
  • Page 17 70GS-64S MOTHER UNIT (F7240N7A) PWB COMPONENT LOCATION TABLES. Copper Side. 5HI 1R <XP 5HI 1R <XP 5HI 1R <XP 5HI 1R <XP 5HI 1R <XP 5HI 1R <XP &   &   &   &   '  ...
  • Page 18 70GS-64S MOTHER UNIT (F7240N7A) PWB COMPONENT LOCATION TABLES. Copper Side. 5HI 1R <XP 5HI 1R <XP 5HI 1R <XP 5HI 1R <XP 5HI 1R <XP 5HI 1R <XP -   -)   4   5   5  ...

  • Page 19: Component Location Tables

    70GS-64S MOTHER UNIT (F7240N7A) PWB PFC MODULE UNIT (F7336N2) PWB COMPONENT LOCATION TABLES. PARTS LOCATION TABLES. Component side. Copper side. Copper Side. Ref No Ref No 5HI 1R <XP 5HI 1R <XP (L6) 30226 66649 C1705 54864 42265 5   5   (PWA)
  • Page 20 70GS-64S DIGITAL MODULE (F7313N0A) PWB PARTS LOCATION TABLES. Component side. Copper Side. Ref No Ref No Ref No Ref No Ref No C6001 43180 45466 C6207 68326 5842 L6013 56642 8128 R6086 85090 18034 (KA) 115620 52527 (RGB) 138938 52527 C6002 16764 45212...

  • Page 21: Description Of Schematic Diagram

    70GS-64S DESCRIPTION OF SCHEMATIC DIAGRAM SAFETY NOTE: NOTE: 1. The unit of resistance «ohm»is omitted (K=1000 1. DISCONNECT THE AC PLUG FROM THE AC ohms. M= Megaohm). 2. All resistors are 1/8 watt. unless otherwise noted. OUTLET BEFORE REPLACING PARTS. 3.
  • Page 22 70GS-64S SCHEMATIC DIAGRAM OF MOTHER UNIT (K7240N7), 01 Version. Page 24 PAFT AFT1 AFT2 ALCLOCK TLTXT...

  • Page 23: Schematic Diagram

    70GS-64S SCHEMATIC DIAGRAM OF MOTHER UNIT (K7240N7), 01 Version. Page 25...
  • Page 24 70GS-64S SCHEMATIC DIAGRAM OF MOTHER UNIT (K7240N7), 01 Version. PROT HEADR HEADL RES2 MUTE RES2 TLTXT MUTE HEADR HEADL...
  • Page 25 70GS-64S SCHEMATIC DIAGRAM OF MOTHER UNIT (K7240N7), 01 Version. SC2OUTL SC2OUTR SC1INR SC1OUTR SC1OUTL SC1INL AVCLOCK...
  • Page 26 GN01285 REALIZADO VERIFICA Digitally signed by Castill Digitally signed by Adolfo Fernandez cn=Castillo, Fco., ou=SE cn=Adolfo Fernandez, ou=CAD GLOBAL NETWORK, o=SHARP, c=ES Date: 2001.11.14 13:13:47 Z Date: 2001.11.14 13:24:5 Reason: This document is ready for approval Reason: I have reviewed...
  • Page 27 HASTA INFO 1012 15-12-2000 HASTA INFO 989 20-06-2001 21-11-2000 HASTA INFO 948 FECHA ESCALA SHARP by Castillo, Fco. Digitally signed by Castillo, Fco. 21-07-2000 HASTA INFO 776 o., ou=SEES, o=Engineering Dept., c=ES cn=Castillo, Fco., ou=SEES, o=Engineering Dept., c=ES 14 13:24:53 Z Date: 2001.11.14 13:25:20 Z...
  • Page 28 70GS-64S SCHEMATIC DIAGRAM OF PFC UNIT (F7336N2), 00 Version.

  • Page 29: Stereo Led Flashing Code

    70GS-64S STEREO LED FLASHING CODES. If the TV set does not work and the stereo led is flashing, follow the sequence according to the information below, as a guide to fault finding. 1. Unable to read or write into NVM: 66% ON, 33% OFF twice and OFF for a second. 2.

  • Page 30: Block Diagram

    70GS-64S BLOCK DIAGRAM . 70GS-64S BLOCK DIAGRAM S F 2 0 1 S A W TH 201A PERIPHERICS FM AUDIO AUDIO L/R IC 201 TUNER CVBS TDA 4472 S F 2 0 2 S A W 21 PINS MAIN POWER 21 PINS  &+   92/ ...
  • Page 31 70GS-64S BLOCK DIAGRAM . IC 305 RICS M S P 3400 D +16V IC 301 A U D I O O U T L Q 304 -16V AUDIO Q 302 PROTECTOR Q 303 +16V IC 302 A U D I O O U T R -16V Q 305 Q 306...

  • Page 32: Parts Listing

    70GS-64S PARTS LISTING REF No. PARTS DESCRIPTION * SN CODE EX CODE Q 0502 RH-TX0201BMZZ TRT KSA928A SAMGUNG S AA REPLACEMENT PARTS Q 0503 RH-TX0239BMZZ TRT SUD15N06-90L SILICONIX S AA Replacement parts which have special safety characteristics are identified Q 0505 VS2SC2412KQ-1 TRT 2SC2412 ROHM S AA in this manual.
  • Page 33 70GS-64S REF No. PARTS DESCRIPTION * SN CODE EX CODE REF No. PARTS DESCRIPTION * SN CODE EX CODE D 0620 RH-DX0551BMZZ DIODE LL4148 TFK SMD S AA L 0701 RCILF0108BMZZ COIL 472839.00 THOMSON S AF D 0621 RH-DX0506BMZZ DIODE 1N4936 S AB L 0702 RCILP0110CEZZ COIL 3.3uH TDK...
  • Page 34 70GS-64S REF No. PARTS DESCRIPTION * SN CODE EX CODE REF No. PARTS DESCRIPTION * SN CODE EX CODE C 0343 VCEAGA1HW106M ELEC C 10UF 20% 50V S AA C 0517 VCKYTV1HB472K CERAM C 4,7NF 50V 2125SMD S AA C 0350 VCKYTV1HF104Z CERAM C 100NF 50V 2125SMD S AA C 0518...
  • Page 35 70GS-64S REF No. PARTS DESCRIPTION * SN CODE EX CODE REF No. PARTS DESCRIPTION * SN CODE EX CODE C 0743 VCKYTV1HF104Z CERAM C 100NF 50V 2125SMD S AA R 0313 VRS-TV1JD102J 2125 1KOHM 5% 1/10W SMD S AA C 0746 RC-FZ0192BMZZ C 330NF 275V X2 222233820334 PHILIPS S AA R 0314...
  • Page 36 70GS-64S REF No. PARTS DESCRIPTION * SN CODE EX CODE REF No. PARTS DESCRIPTION * SN CODE EX CODE R 0502 VRS-TV1JD472J 2125 4.7KOHM 5% 1/10W SMD S AA R 0713 VRC-MA2HG564J SOLID R 560KOHM 5% 1/2W S AA R 0503 VRD-RA2BE102J RES 1KOHM 5% 1/8W S AA R 0714...
  • Page 37 70GS-64S REF No. PARTS DESCRIPTION * SN CODE EX CODE REF No. PARTS DESCRIPTION * SN CODE EX CODE R 1031 VRS-TV1JD472J 2125 4.7KOHM 5% 1/10W SMD S AA J 0281 VRS-TV1JD000J 2125 0 OHM 5% 1/10W SMD S AA R 1032 VRS-TV1JD273J 2125 27KOHM 5% 1/10W SMD S AA...
  • Page 38 70GS-64S REF No. PARTS DESCRIPTION * SN CODE EX CODE REF No. PARTS DESCRIPTION * SN CODE EX CODE D 1809 RH-DX0501BMZZ DIODE 1N4004 S AA Q 6022 VS2SA1037KQ-1 TRT BC807 SMD S AA D 1810 RH-EX0546BMZZ ZENER DIODE TZMC5V6 TFK SMD S AA Q 6023 VS2SC2412KQ-1 TRT 2SC2412 ROHM S AA...
  • Page 39 70GS-64S REF No. PARTS DESCRIPTION * SN CODE EX CODE REF No. PARTS DESCRIPTION * SN CODE EX CODE C 6043 VCCCTV1HH151J CERAM C 150PF 50V 2125SMD S AA R 6041 VRS-TV1JD271J 2125 270 OHM 5% 1/10W SMD S AA R 6042 VRS-TV1JD222J 2125 2,2KOHM 5% 1/10W SMD S AA...
  • Page 40 70GS-64S REF No. PARTS DESCRIPTION * SN CODE EX CODE R 1704 VRS-TQ2BD564J RE OX 560KOHM 5% 1/8W SMD S AA R 1705 VRS-TQ2BD564J RE OX 560KOHM 5% 1/8W SMD S AA R 1706 VRS-TQ2BD564J RE OX 560KOHM 5% 1/8W SMD S AA R 1707 VRS-TV1JD101J 2125 100 OHM 5% 1/10W SMD...

  • Page 41: Alternative Parts

    70GS-64S ALTERNATIVE PARTS 1. CRT THOMSON: VB66EHJ4312*N or VB66EHJ1312*N. The original Philips CRT (VB66EAK0714*N) may be replaced by VB66EHJ4312*N or VB66EHJ1312*N depending on the stock of CRTs. Both Thomson CRTs are completely interchangeable (VB66EHJ4312*N has got a glass transmission (GT) of 48%, while VB66EHJ1312*N has got a GT of 52%). In case you receive any TV with one of the above Thomson CRTs it may perfectly be serviced thru Schematic Diagrams included in this Service Manual, the differences (in most cases of value) are below detailed.
  • Page 42 70GS-64S NOTES: Fig. 15 : IC2401-IC2402 configuration. Fig. 14 : How to assemble R536A (Vinyl tube for R536). X2401 R2402 B0214 180pF 20.48MHz Q2401 R2403 INTQ 2SC2412 I2CEN TSCQ M3LDA M3CLK R2404 CORQ XOUT BLAN CVBS VSS_1 VDD_1 RGB_GND VDDA VSSA_2 VSSA_1 C2405...
  • Page 43 70GS-64S NOTES...
  • Page 44 SHARP ELECTRONICA ESPAÑA S.A. PRINTED BY: TV Division Think Ecology, please use Engineering Dept.

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