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Sharp 81GF-66E Service Manual
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Sharp 81GF-66E Service Manual

Sharp 81GF-66E Service Manual

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PAL
B/G, I
ELECTRICAL SPECIFICATION.......................2
IMPORTANT SERVICE NOTES.......................3
SERVICE ADJUSTEMENTS.............................4
PRINTED WIRING BOARDS............................7
SHARP CORPORATION

SERVICE MANUAL

/ SECAM
L/L', B/G, D/K
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..................................16
BLOCK DIAGRAM...........................................28
PART LIST........................................................29
1
DA-100W
SYSTEM COLOUR TELEVISION
81GF-66E
This document has been published to
be used for after sales service only.
81GF-66E
SEJB81GF66E00
Issued: 25th July '00
CHASSIS

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Summary of Contents for Sharp 81GF-66E

  • Page 1: Service Manual

    81GF-66E SERVICE MANUAL SEJB81GF66E00 Issued: 25th July ‘00 DA-100W CHASSIS / SECAM SYSTEM COLOUR TELEVISION B/G, I L/L’, B/G, D/K 81GF-66E 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.

  • Page 2: Electrical Specifications

    81GF-66E ELECTRICAL SPECIFICATIONS •Intermediate Frequencies •Power Input .......220V-240 Volts AC 50Hz L’............33.9MHz L, B/G, D/K, I..........38.9MHz •Power Consumption Normal Operating........110W •Sound Carrier Trap (Method IEC 60107) L’............40.4MHz Normal Operating........200W L, D/K...........32.4MHz (1800uA, S-out Max.) B/G.............33.4MHz Stand-by Operating.........0,9W I..............32.9MHz •Audio Power Output Rating •Adjacent Sound Carrier Trap...

  • Page 3: Important Service Notes

    81GF-66E IMPORTANT SERVICE NOTES Maintenance and repair of this receiver should be done by qualified service personnel only. SERVICING OF HIGH VOLTAGE SYSTEM AND PICTURE TUBE When servicing the high voltage system, remove static charge from it by connecting a 10K ohm resistor in series with an insulated wire (such as test probe) between picture tube ground tag and high voltage lead.

  • Page 4: Service Adjustments

    81GF-66E SERVICE ADJUSTMENTS All the adjustments required for this chassis will be done in Service Mode, except G2 and Focus. • • • • • G2 ADJUSTMENT 1. Receive cross hatch pattern signal. 155 V 2. Set contrast to 80/100 and brightness to 40/100.
  • Page 5 81GF-66E 1− 1− 1− 1− 1− HORIZONTAL SHIFT a) Internal pattern signal will be displayed. b) When volume-up button is pressed, picture moves to the left. c) When volume-down button is pressed, picture moves to the right. d) Adjust the horizontal location to obtain picture centering (fig. 2).
  • Page 6 81GF-66E 10− 10− 10− VERTICAL AMPLITUDE 10− 10− a) Internal pattern signal will be displayed. b) When volume-up button is pressed, vertical size of picture increases. c) When volume-down button is pressed, vertical size of picture decreases. d) Adjust the vertical size to obtain overscan (fig. 11).

  • Page 7: Description Of Schematic Diagram

    81GF-66E DESCRIPTION OF SCHEMATIC DIAGRAM NOTE: SAFETY NOTE: 1. The unit of resistance «ohm»is omitted 1. DISCONNECT THE AC PLUG FROM THE AC (K=1000 ohms. M= Megaohm). OUTLET BEFORE REPLACING PARTS. 2. All resistors are 1/8 watt. unless otherwise noted.
  • Page 8 M6701 RRMCU0228CEZZ OPC1 TSL235 R6739 R6738 S6702 S6703 S6704 S6705 LP6701 P0001 KZ0079 KZ0079 KZ0079 KZ0079 GN0304 D6751 PX0105 D6752 PX0105 C6715 (16V) F6701 FS-C3226 R6751 S6701 P0600 R6701 120K 1/2W R6702 120K 1/2W (ST) (RC) (OPC) GN0341 GN0341 GN0341 GN0207 (SW1) (SW2)
  • Page 9 (OPC) GN0341 (SW1) (SW2) (RC) (AA) GN0341 GN0341 GN0341 CM0672FC FB1002 RBLN-0037 C730 C731 10nF 10nF C732 10nF C733 10nF D707 D708 DX0502 DX0502 R770 R708 1N4005 1N4005 C728 (1/2W) 100nF XZ0229 R771 C701 470K 0,1uF (1W) 470nF D729 IC701 250V PST529 EX0568...
  • Page 10 Page 18 BYT52M FB703 B0214 MR826 LN0037 C723 R1008 R716 20.48MHz 180pF Q701 2200uF +140V TX0198 (10V) R2408 S5F10N80 Q505 C720 2SC2412 R717 C712 EZ0258 D712 R1061 Q2401 100pF 100uF R2403 EX0419 2SC2412 (200V) R766 INTQ R526 R514 C714 TSCQ I2CEN L705 82nF...
  • Page 11 L350 3.3uH (CF) +16V IC301 R375 TDA7480 C351 C352 R350 R352 C354 220uF 100nF 100pF (25V) C350 (ST) (HD) (SS) (FV) (CC) 100nF GN0341 GN0341 GN0341 GN0241 GN0241 R377 R351 L352 C353 P0278 C381 100nF 680nF 0037 C360 560pF C361 C359 C356 470nF...
  • Page 12 C218 D417 100pF 100uF C6V2 TH201 (10V) EX0547 RTUNH0139BM CZ2107BM REALIZADO VERIFICADO APROBADO NOMBRE CODIGO MOTHER BOARD U N T K 7 B M V FECHA 17-02-2000 SHARP ESCALA 08.02.2000 Hasta INFO A-2/A-1 MODELO 81GF66E ELECTRONICA ESPANA S.A. FECHA REVISIONES...
  • Page 13 81GF-66E CRT MODULE SCHEMATIC DIAGRAM. +12V R5438 C891 100pF R854 R855 R857 Q853 TX0142 R1801 Q855 TX0143 Q852 R860 TX0142 R858 C854 10pF +12V C892 R864 R867 R5439 +12V SENS R869 Q857 100pF TX0142 Q858 TX0143 Q856 GN0841CE TX0142 R873...
  • Page 14 81GF-66E CRT MODULE SCHEMATIC DIAGRAM. IC850 TDA6111Q H.V. 27.5 KV C871 R865 D864 DX0045 C881 V1012CE 10nF R887 R888 C887 68LPF350X 560pF D865 FB850 R850 C5V1 R862 R863 EX0408 220uF (1/2W) (16V) R880 C880 C861 33nF (2W) (250V) D861 R872...
  • Page 15 81GF-66E 7295 DIGITAL MODULE SCHEMATIC DIAGRAM. L6009 Q6006 +3.3V +3.3V C6044 C6045 3.3uH 2SC2412 27pF 27pF C6006 X6002 C6034 470uF C6033 10uF L6001 27 MHz C6041 (16V) 3.3uH R6118 B0242BM (6.3V) 10nF 100nF L6003 100K 3.3uH R6117 C6007 C6001 R6082...
  • Page 16 81GF-66E 7295 DIGITAL MODULE SCHEMATIC DIAGRAM. C6018 R6005 15nF C6019 R6006 15nF C6020 R6007 C6014 15nF 3.3uF (KA) L6006 3.3uH GN0842 C6016 C6015 22uF 100nF (16V) C6017 22nF D6013 EX0540BM R6128 BOUT GOUT D6014 ROUT R6089 R6032 SVMOUT XREF IC6003...
  • Page 17 +16V L1301 +16V K0000 IC1302 TDA7480 GN0341CE C1349 C1350 100uF C1301 R1324 C1348 100nF 1000uF (25V) C1347 100pF (25V) 100nF GN0241 R1334 C1366 680nF C1351 R1321 100nF L1306 R1323 P0278 68uH C1357 C1353 560pF C1303 3,3nF C1358 1000uF 470nF (25V) R1322 (FZ) C1356...
  • Page 18 81GF-66E DINAMIC FOCUS SCHEMATIC DIAGRAM. (FF) 0505 0505 FOC IN T1602 NZ0575BM C1601 C1602 330pF 470pF R-Z0001BM C1603 1000 pF R1602 (EW) R1601 GN0241 180. 1/2W D1601 R1603 EX0431BM Q1601 TIP32 D1602 EX0421BM A/V FRONT SCHEMATIC DIAGRAM. JAKJ0047CEZZ J401 0015B...
  • Page 19 81GF-66E BLOCK DIAGRAM CENTRAL +16V SPEAKER MODULE SF 201 IC 305 IC1302 CENTER TH 201 FM AUDIO -16V MSP 3410 D SF 202 IC 201 TUNER CVBS +16V TDA 4470 PERIPHERICS SF 203 AUDIO L/R IC 301 AUDIO OUT L...

  • Page 20: Part List

    81GF-66E PART LIST PARTS DESCRIPTION SN CODE EX CODE Q 0306 VS2SC2412KQ-1 TRT 2SC2412 ROHM S AA REPLACEMENT PARTS Q 0403 VS2SC2412KQ-1 TRT 2SC2412 ROHM S AA Replacement parts which have special safety characteristics are identi- Q 0404 VS2SC2412KQ-1 TRT 2SC2412 ROHM S AA fied in this manual.
  • Page 21 81GF-66E PARTS DESCRIPTION PARTS DESCRIPTION SN CODE EX CODE SN CODE EX CODE D 0508 RH-DX0551BMZZ DIODE LL4148 TFK SMD S AA L 0301 VP-DF100K0000 PEAK COIL 10UH 10% S AA D 0509 RH-DX0551BMZZ DIODE LL4148 TFK SMD S AA...
  • Page 22 81GF-66E PARTS DESCRIPTION PARTS DESCRIPTION SN CODE EX CODE SN CODE EX CODE C 0320 VCKYTV1HB102K CERAM C 1NF 50V 2125SMD S AA C 0420 VCCCTV1HH101J CERAM C 100PF 50V 2125SMD S AA C 0321 VCKYTV1HF104Z CERAM C 100NF 50V 2125SMD...
  • Page 23 81GF-66E PARTS DESCRIPTION PARTS DESCRIPTION SN CODE EX CODE SN CODE EX CODE C 0702 RC-FZ0173BMZZ POL C 47NF 400V PHIL.365 S AN R 0216 VRS-TV1JD151J 2125 150 OHM 5% 1/10W SMD S AA C 0703 RC-KZ0165BMZZ CERAM C DE0905-979E332ZAC250...
  • Page 24 81GF-66E PARTS DESCRIPTION PARTS DESCRIPTION SN CODE EX CODE SN CODE EX CODE R 0406 VRS-TV1JD101J 2125 100 OHM 5% 1/10W SMD S AA R 0524 VRS-TV1JD820J 2125 82 OHM 5% 1/10W SMD S AA R 0408 VRD-RA2EE750J RES 75 OHM 5% 1/4W...
  • Page 25 81GF-66E PARTS DESCRIPTION PARTS DESCRIPTION SN CODE EX CODE SN CODE EX CODE R 0744 VRS-TQ2BD473F OX RE 47KOHM 1% 1/8W S AA R 1057 VRS-TV1JD102J 2125 1KOHM 5% 1/10W SMD S AA R 0745 VRS-TV1JD182F 2125 1,8KOHM 1% 1/10W SMD...
  • Page 26 81GF-66E PARTS DESCRIPTION PARTS DESCRIPTION SN CODE EX CODE SN CODE EX CODE J 0065 VRS-TV1JD000J 2125 0 OHM 5% 1/10W SMD S AA DIODES J 0098 VRS-TV1JD000J 2125 0 OHM 5% 1/10W SMD S AA J 0126 VRS-TV1JD000J 2125 0 OHM 5% 1/10W SMD...
  • Page 27 81GF-66E PARTS DESCRIPTION PARTS DESCRIPTION SN CODE EX CODE SN CODE EX CODE C 5426 VCEAGA1HW106M ELEC C 10UF 20% 50V S AA R 5445 VRD-RA2BE151J RES 150 OHM 5% 1/8W S AA R 5446 VRD-RA2BE100J RES 10 OHM 5% 1/8W...
  • Page 28 81GF-66E PARTS DESCRIPTION PARTS DESCRIPTION SN CODE EX CODE SN CODE EX CODE L 6012 VP-NM3R3MR19N COIL 3,3UH SMD S AA C 6068 VCKYTV1HB102K CERAM C 1NF 50V 2125SMD S AA L 6013 VP-NM3R3MR19N COIL 3,3UH SMD S AA C 6069...
  • Page 29 81GF-66E PARTS DESCRIPTION PARTS DESCRIPTION SN CODE EX CODE SN CODE EX CODE R 6081 VRS-TV1JD101J 2125 100 OHM 5% 1/10W SMD S AA C 1337 VCKYTV1HB472K CERAM C 4,7NF 50V 2125SMD S AA R 6082 VRS-TV1JD101J 2125 100 OHM 5% 1/10W SMD...
  • Page 30 81GF-66E PARTS DESCRIPTION PARTS DESCRIPTION SN CODE EX CODE SN CODE EX CODE R 6702 VRD-RA2HD124J RES 120KOHM 5% 1/2W S AA QPLGN0505CEZZ PLUG S AA R 6738 VRS-TV1JD101J 2125 100 OHM 5% 1/10W SMD S AA (FF) QPLGN0505CEZZ PLUG...