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Sharp 81GF-63E Service Manual
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Sharp 81GF-63E Service Manual

Sharp 81GF-63E Service Manual

Pal b/g, i / secam l/l’, b/g, d/k system colour television
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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
1
DA-50W
SYSTEM COLOUR TELEVISION
81GF-63E
SCHEMATIC DIAGRAM.................................14
BLOCK DIAGRAM..........................................22
PART LIST......................................................23
This document has been published to
be used for after sales service only.
81GF-63E
SEJB81GF63E00
Issued: 27th July '00
CHASSIS

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  • Page 1: Service Manual

    81GF-63E SERVICE MANUAL SEJB81GF63E00 Issued: 27th July ‘00 DA-50W CHASSIS / SECAM SYSTEM COLOUR TELEVISION B/G, I L/L’, B/G, D/K 81GF-63E 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-63E ELECTRICAL SPECIFICATIONS •Intermediate Frecuencies •Power Input .......220V-240 Volts AC 50Hz L’............33.9MHz L, B/G, D/K, I........38.9MHz •Power Consumption Normal Operating........92W •Sound Carrier Trap L’............40.4MHz Stand-by Operating........1W L, D/K...........32.4MHz B/G............33.4MHz I............32.9MHz •Audio Power Output Rating •Adjacent Sound Carrier Trap Internal Left Speaker.....10W (MPO) L’............32.4MHz...

  • Page 3: Important Service Notes

    81GF-63E 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-63E 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. 140 V 2. Set contrast to 80/100 and brightness to 40/100.

  • Page 5: A) Internal Pattern Signal Will Be Displayed

    81GF-63E 1− 1− 1− 1− HORIZONTAL SHIFT 1− 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: Colour Adjustment

    81GF-63E 9− 9− 9− 9− S-CORRECTION 9− a) Internal pattern signal will be displayed. b) When volume-up button is pressed, upper and lower scanning decreases, and center scanning increases. c) When volume-down button is pressed, upper and lower scanning increases, and center scanning decreases.

  • Page 7: Printed Wiring Boards

    81GF-63E DINAMIC FOCUS UNIT PRINTED WIRING BOARDS. C1601 R1603 Q1601 FOCO DYN.INPUT...
  • Page 8 81GF-63E MOTHER UNIT PRINTED WIRING BOARD. Component side. K7240BM QKIT IC1008 R778 LP701 R703 D1001 D1002 (SW2) S702 S704 S703 S705 C701 FB1002 R791 R721 J344 C707 R790 C706 (OPC) (ST) L701 R792 Q711 R1036 CF701 IC701 C724 JF53 JF54 (K).
  • Page 9 81GF-63E MOTHER UNIT PRINTED WIRING BOARD. Component side. ITP7240BMNF L317 C353 L352 J401 C363 C361 (CC) (SS) C356 (HD) C352 L318 IC301 (FV). C351 C368 C373 L350 C431 C430 R1003 L351 C341 F7240BMNF C372 L315 L316 IC302 (K). IC2401 R359...
  • Page 10 81GF-63E MOTHER UNIT PRINTED WIRING BOARD. Copper side. QKITP7240BMNF L317 R353 IC301 C337 L352 C359 R308 C381 J401 C336 (SS) (CC) R310 C356 R352 C354 J345 R317 C451 R351 C350 C364 Q305 C352 C351 L318 R362 (HD) L353 C375 C373...
  • Page 11 81GF-63E MOTHER UNIT PRINTED WIRING BOARD. Copper side. J313 M1000 R778 LP701 D1002 R789 R703 D724 K C733 C732 C731 C730 R751 R738 S701 C1015 R791 J344 R790 R788 R721 IC702 R787 C707 Q708 R735 JF47 Q712 R792 R754 R1036...
  • Page 12 81GF-63E POWER SWITCH UNIT PRINTED WIRING BOARDS. R6751 D6702 D6701...
  • Page 13 81GF-63E CENTRAL SPEAKER UNIT PRINTED WIRING BOARDS. FRONT A/V UNIT PRINTED WIRING BOARDS. (VS) (SF) (SF) C1306 (VS) IC1302 C1314 L1303 L1303 D1303 D1303 C1306 (CS) L1301 (CS) C1315 L1302 C1315 L1302 C1316 C1309 D1304 D1304 C1312 C1310 C1308 C1305...

  • Page 14: Description Of Schematic Diagram

    81GF-63E 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 15 81GF-63E DINAMIC FOCUS UNIT SCHEMATIC DIAGRAM. (FF) 0505 0505 FOC IN T1602 NZ0575BM C1601 C1602 330pF 470pF R-Z0001BM C1603 1000 pF (EW) R1601 GN0241 180. 1/2W D1601 EX0431BM Q1601 TIP32 D1602 EX0411BM POWER SWITCH UNIT SCHEMATIC DIAGRAM. M6701 RRMCU0228CEZZ S6702...
  • Page 16 81GF-63E Page 18 MOTHER UNTI SCHEMATIC DIAGRAM (00 Version). +3.3V PROT PAFT AFT1 AFT2 ALCLOCK TLTXT...
  • Page 17 81GF-63E Page 19 MOTHER UNTI SCHEMATIC DIAGRAM (00 Version). SC1OUTR SC1OUTL SC3INL SC3INR +13V +175V...
  • Page 18 81GF-63E MOTHER UNTI SCHEMATIC DIAGRAM (00 Version). PROT HEADR HEADL RES2 ISEN MUTE VFRONT RES2 TLTXT MUTE HEADR HEADL SELV...
  • Page 19 81GF-63E MOTHER UNTI SCHEMATIC DIAGRAM (00 Version). SC2OUTR SC2OUTL SC2NR SC2INL VPROT VERT RES1 SC1OUTR SC1INR SC1OUTL SC1INL ALCLOCK...
  • Page 20 81GF-63E DINAMIC FOCUS UNIT SCHEMATIC DIAGRAM.
  • Page 21 81GF-63E FRONT AV UNIT SCHEMATIC DIAGRAM. JAKJ0047CEZZ J401 0015B R449 (1/4W) C428 C429 C336 10nF L318 3.3uH C337 L317 R317 10nF 3.3uH R316 (DF) (FV) GN0241 (HD) (SS) (CC) GN0341 GN0341 GN0241 CENTRAL SPEAKER UNIT SCHEMATIC DIAGRAM. (VS) D1303 GN0341...

  • Page 22: Block Diagram

    81GF-63E BLOCK DIAGRAM...

  • Page 23: Part List

    81GF-63E PART LIST PARTS DESCRIPTION SN CODE EX CODE REPLACEMENT PARTS Q 0304 VS2SA1037KQ-1 TRT BC807 SMD S AA Q 0305 VS2SC2412KQ-1 TRT 2SC2412 ROHM S AA Replacement parts which have special safety characteristics are identi- Q 0306 VS2SC2412KQ-1 TRT 2SC2412 ROHM S AA fied in this manual.
  • Page 24 81GF-63E PARTS DESCRIPTION PARTS DESCRIPTION SN CODE EX CODE SN CODE EX CODE D 0421 RH-EX0544BMZZ ZENER DIODE TZMC4V7 TFK SMD S AA L 0203 VP-CF6R8K0000 PEAK COIL 6.8UH 10% S AA D 0502 RH-DX0551BMZZ DIODE LL4148 TFK SMD S AA...
  • Page 25 81GF-63E PARTS DESCRIPTION PARTS DESCRIPTION SN CODE EX CODE SN CODE EX CODE C 0315 VCEAGA1HW335M ELEC C 3,3UF 20% 50V S AA C 0419 VCCCTV1HH391J CERAM C 390PF 50V 2125SMD S AA C 0316 VCKYTV1HF104Z CERAM C 100NF 50V 2125SMD...
  • Page 26 81GF-63E PARTS DESCRIPTION PARTS DESCRIPTION SN CODE EX CODE SN CODE EX CODE C 0712 VCCCTV1HH101J CERAM C 100PF 50V 2125SMD S AA C 2404 VCKYTV1HF104Z CERAM C 100NF 50V 2125SMD S AA C 0713 RC-FZ4683BMNJ POL FILM C 68nF 50V 5% ECQ-B PANASONIC...
  • Page 27 81GF-63E PARTS DESCRIPTION PARTS DESCRIPTION SN CODE EX CODE SN CODE EX CODE R 0352 VRS-TV1JD123J 2125 12KOHM 5% 1/10W SMD S AA R 0503 VRD-RA2BE102J RES 1KOHM 5% 1/8W S AA R 0353 VRS-TV1JD151J 2125 150 OHM 5% 1/10W SMD...
  • Page 28 81GF-63E PARTS DESCRIPTION PARTS DESCRIPTION SN CODE EX CODE SN CODE EX CODE R 0646 VRS-TV1JD274J 2125 270KOHM 5% 1/10W SMD S AA R 0811 VRS-TV1JD103J 2125 10KOHM 5% 1/10W SMD S AA R 0647 VRS-TV1JD224J 2125 220KOHM 5% 1/10W SMD...
  • Page 29 81GF-63E PARTS DESCRIPTION PARTS DESCRIPTION SN CODE EX CODE SN CODE EX CODE QPLGN0541CEZZ PLUG S AA JL 0012 QCNW-2803BMZZ COAXIAL WIRE 1 WAY S AA QPLGN0341CEZZ PLUG S AA JL 0014 QCNW-2736BMZZ WIRE 1 WAY S AB QPLGN0841CEZZ PLUG...
  • Page 30 81GF-63E PARTS DESCRIPTION PARTS DESCRIPTION SN CODE EX CODE SN CODE EX CODE JF 0003 VRS-TV1JD000J 2125 0 OHM 5% 1/10W SMD S AA C 1802 VCCCTV1HH150J CERAM C 15PF 50V 2125SMD S AA C 1803 VCCCTV1HH150J CERAM C 15PF 50V 2125SMD...
  • Page 31 81GF-63E PARTS DESCRIPTION PARTS DESCRIPTION SN CODE EX CODE SN CODE EX CODE R 1839 VRS-TV1JD100J 2125 10 OHM 5% 1/10W SMD S AA RESISTORS R 1840 VRS-TV1JD822J 2125 8,2KOHM 5% 1/10W SMD S AA R 1301 VRS-TV1JD123J 2125 12KOHM 5% 1/10W SMD...
  • Page 32 37GQ-20FP RECICLED PAPER PRINTED BY:...

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