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Sharp 66GF-64H Service Manual
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Sharp 66GF-64H Service Manual

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DOLBY SURROUND
PRO
LOGIC
ELECTRICAL SPECIFICATION.......................3
IMPORTANT SERVICE NOTES.......................4
ADJUSTMENTS PROCEDURES.....................5
PRINTED WIRING BOARDS..........................10
COMPONENT LOCATION TABLES...............18

SHARP CORPORATION

SERVICE MANUAL

PAL I SYSTEM COLOUR TELEVISION
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..................................27
BLOCK DIAGRAM...........................................37
PARTS LISTING..............................................38
STEREO LED FLASHING CODES.................50
1
SEJB66GF64H00
Issued: 19th Dec 2000
DA-50W
CHASSIS
DOLBY SURROUND
PRO
66GF-64H
This document has been published to
be used for after sales service only.
66GF-64H
LOGIC

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  • Page 1: Table Of Contents

    66GF-64H SERVICE MANUAL SEJB66GF64H00 Issued: 19th Dec 2000 DA-50W CHASSIS PAL I SYSTEM COLOUR TELEVISION DOLBY SURROUND LOGIC 66GF-64H MODEL DOLBY SURROUND LOGIC 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 OPERATION MANUAL Please read this operation manual carefully before using the colour television. If you require any advice or assistance regarding your Sharp product please visit our web-site www.sharp.co.uk/support. Customers without Internet access may telephone 0990 274277 during office hour.
  • Page 3 66GF-64H 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.

  • Page 4: Electrical Specification

    66GF-64H ELECTRICAL SPECIFICATIONS •Power Input ...... 220V-240 Volts AC 50Hz •Convergence Static (Centre) .. between any two colours Dynamic ....after static equals zero •Power Consumption •Focus ....High Bi-Potential Electrostatic Normal Operation ........105W •Sweep Deflection ....... Magnetic Stand-by Operation ........1W •Picture Intermediate frequency ..

  • Page 5: Important Servicing Notes

    66GF-64H 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 6: Adjustments Procedures

    66GF-64H 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.
  • Page 7 66GF-64H Note that the receiver should be set to FULL MODE before carrying out any geometry adjustments. This can be achieved by pressing the widescreen mode button on the remote control until FULL MODE appears on the OSD. This can only be done out of the service mode.
  • Page 8 66GF-64H barrel shape. • When the volume down button is pressed, side pincushion changes from pincushion to barrel shape. • Press the stand-by button on the remote control to store. Corner Symmetry Adjust the Corner Symmetry so that the picture is centred.
  • Page 9 66GF-64H Colour Adjustments To increase press volume-up button and to decrease press volume down button. The following adjustments should only be carried out when the CRT, IC801 or IC801 are replaced. RED CUT OFF alter «X» coordinate. GREEN CUT OFF alter «Y»...
  • Page 10 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. Procedure to re-set the NVM: Modify the NVM values as in the below table.

  • Page 11: Electrical Specifications

    66GF-64H ELECTRICAL SPECIFICATIONS •Power Input ...... 220V-240 Volts AC 50Hz •Convergence Static (Centre) .. between any two colours Dynamic ....after static equals zero •Power Consumption •Focus ....High Bi-Potential Electrostatic Normal Operation ........105W •Sweep Deflection ....... Magnetic Stand-by Operation ........1W •Picture Intermediate frequency ..

  • Page 12: Description Of Schematic Diagram

    66GF-64H DESCRIPTION OF SCHEMATIC DIAGRAM NOTE: SAFETY NOTE: 1. The unit of resistance «ohm»is omitted (K=1000 ohms. M= Megaohm). 1. DISCONNECT THE AC PLUG FROM THE AC 2. All resistors are 1/8 watt. unless otherwise noted. OUTLET BEFORE REPLACING PARTS.
  • Page 13 66GF-64H SCHEMATIC DIAGRAM OF MOTHER UNIT (K7240), 00 Version. Page 30 I2SOUT I2SCL I2SWS PROT I2SIN PAFT PROT AFT1 AFT2 ALCLOCK TLTXT...
  • Page 14 66GF-64H SCHEMATIC DIAGRAM OF MOTHER UNIT (K7240), 00 Version. Page 31 SC1OUTR SC1OUTL SC3INR SC3INL...
  • Page 15 66GF-64H SCHEMATIC DIAGRAM OF MOTHER UNIT (K7240), 00 Version. PROT HEADL HEADR RES2 MUTE VFRONT RES2 TLTXT MUTE HEADR HEADL SELV...
  • Page 16 66GF-64H SCHEMATIC DIAGRAM OF MOTHER UNIT (K7240), 00 Version. SC2OUTR SC2OUTL SC2INR SC2INL VPROT VERT RES1 SC1OUTR SC1INR SC1OUTL SC1INL ALCLOCK...
  • Page 17 66GF-64H SCHEMATIC DIAGRAM OF DYNAMIC FOCUS UNIT (F7314), 00 Version. (FF) 0505 0505 FOC IN T1602 NZ0575BM C1601 1000pF R-Z0001BM C1603 1000 pF (EW) R1601 GN0241 180. 1/2W D1601 EX0427BM Q1601 TIP32 D1602 SCHEMATIC DIAGRAM OF POWER SWITCH UNIT (F7317), 00 Version.
  • Page 18 66GF-64H SCHEMATIC DIAGRAM OF CRT SOCKET UNIT (F7273), 00 Version.
  • Page 19 66GF-64H SCHEMATIC DIAGRAM OF FRONT AV UNIT (F7318), 00 Version. 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 SCHEMATIC DIAGRAM OF CENTRAL SPEAKER UNIT (F7285), 00 Version.
  • Page 20 66GF-64H SCHEMATIC DIAGRAM OF DOLBY UNIT (F7243), 00 Version.
  • Page 21 66GF-64H SCHEMATIC DIAGRAM OF EXTERNAL SPEAKER UNITS (00 Version).

  • Page 22: Block Diagram

    66GF-64H BLOCK DIAGRAM.
  • Page 23 66GF-64H MOTHER UNIT PRINTED WIRING BOARD. Component side. K7240BM 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 24 66GF-64H MOTHER UNIT PRINTED WIRING BOARD. Component side. KITP7240BMNF L317 C353 L352 J401 C361 C363 (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 25 66GF-64H MOTHER UNIT PRINTED WIRING BOARD. Copper side. QKITP7240BMNF L317 R353 IC301 C337 L352 C359 R308 C381 J401 C336 (CC) (SS) R310 C356 R352 C354 J345 R317 C451 R351 C350 C364 Q305 C352 C351 L318 R362 (HD) L353 C375 C373...
  • Page 26 66GF-64H MOTHER UNIT PRINTED WIRING BOARD. Copper side. J313 M1000 R778 LP701 D1002 R789 R703 D724 C733 R751 C732 R738 C731 C730 S701 C1015 R791 J344 R790 R788 R721 IC702 R787 C707 Q708 R735 JF47 R792 Q712 R754 R1036 CF701...
  • Page 27 66GF-64H DYNAMIC FOCUS UNIT PRINTED WIRING BOARDS. R1601...
  • Page 28 66GF-64H FRONT A/V UNIT PRINTED CRT MODULE UNIT PRINTED WIRING BOARDS. WIRING BOARDS. K7273BM F7273BMN2 (RT) (MO) L1604 Comp. Side C1807 ESPA¥A J327 IC1801 (L2) R1821 Q912 R1832 (L3) R1820 C1814 C1825 D1809 C1811 D5405 R5428 R1841 Q5407 R5420 C5408...
  • Page 29 66GF-64H POWER SWITCH UNIT PRINTED WIRING BOARDS. Component Side D6751 D6752 LP6701 S6702 S6703 S6704 S6705 R6701 OPC1 K7317BM IC6701 S6701 F7317BMN0 T3.15AH R6702 ESPA¥A F6701 Copper Side R6738 LP6701 D6751 C6702 C6705 C6704 C6703 C6715 R6701 S6701 R6739 S6705...
  • Page 30 66GF-64H DOLBY UNIT PRINTED WIRING BOARDS. Copper Side Comp. Side C1323 R1310 F7243BMN3 D1301 R1320 R1312 C1334 R1340 C1359 R1319 C1335 C1356 C1337 C1367 C1330 C1329 C1339 IC1305 C1363 L1303 R1306 R1323 C1333 C1324 C1319 C1325 C1315 C1314 C1376 C1368...

  • Page 31: Component Location Tables

    66GF-64H MOTHER UNIT (F7240NF) PWB COMPONENT LOCATION TABLES. Component Side. Ref No Xmm Ymm Ref No Xmm Ymm Ref No Xmm Ymm Ref No Xmm Ymm Ref No Xmm Ymm Ref No Xmm Ymm 19558 182118 C218 293624 9906 C514...
  • Page 32 66GF-64H MOTHER UNIT (F7240NF) PWB COMPONENT LOCATION TABLES. Component Side. Ref No Xmm Ymm Ref No Xmm Ymm Ref No Xmm Ymm Ref No Xmm Ymm Ref No Xmm Ymm Ref No Xmm Ymm J191 211836 89154 J270 241554 39116...
  • Page 33 66GF-64H MOTHER UNIT (F7240NF) PWB COMPONENT LOCATION TABLES. Comp. Side. Copper Side. Ref No Xmm Ymm Ref No Xmm Ref No Xmm Ref No Xmm Ref No Xmm R611A 117602 15748 C1002 275590 143510 C2402 217932 163830 C408 159004 18542...
  • Page 34 66GF-64H MOTHER UNIT (F7240NF) PWB COMPONENT LOCATION TABLES. Copper Side. Ref No Xmm Ref No Xmm Ref No Xmm Ref No Xmm Ref No Xmm Ref No Xmm C824 207010 74676 D506 150622 70866 J132 69342 124206 JF21 207518 226060...
  • Page 35 66GF-64H MOTHER UNIT (F7240NF) PWB COMPONENT LOCATION TABLES. Copper Side. Ref No Xmm Ref No Xmm Ref No Xmm Ref No Xmm Ref No Xmm Ref No Xmm R215 319786 95504 R308 250444 235966 R417 211582 22352 R520 154940 75692...
  • Page 36 66GF-64H POWER SWITCH UNIT (F7317NOA) FRONT A/V UNIT (F7318NOA) PWB COMPONENT LOCATION TA- PWB COMPONENT LOCATION BLES: TABLES: Comp. side: Copper side: Comp. side: Copper side: Ref No Xmm Ymm Ref No Xmm Ymm Ref No Xmm Ymm Ref No Xmm...
  • Page 37 66GF-64H CRT UNIT (F7273N2A) PWB COMPONENT LOCATION TABLES: EXT. SPEAKER (7229N1) Component Side. Copper Side. PWB COMP. LOCATION TABLES: Ref No Xmm Ymm Ref No Xmm Ymm Ref No Xmm Ref No Xmm Component Side. 88392 13970 R1820 23114 37846...
  • Page 38 66GF-64H DOLBY UNIT (F7243N3) PWB COMPONENT LOCATION TABLES. Component Side. Ref No Xmm Ymm Ref No Xmm Ymm Ref No Xmm Ymm Ref No Xmm Ymm Ref No Xmm Ymm Ref No Xmm Ymm (BUS) 128778 7975 C1706 91186 28803...
  • Page 39 66GF-64H DOLBY UNIT (F7243N3) PWB COMPONENT LOCATION TABLES. EXT. SPEAKER (7319N0A) Copper Side. PWB COMP. LOCATION TABLES: Component Side. Ref No Xmm Ref No Xmm Ref No Xmm C1301 126492 55727 181864 20929 R1714 95250 20675 C1302 131572 53949 127254 65125...

  • Page 40: Parts Listing

    66GF-64H PARTS LISTING REF No. PARTS DESCRIPTION * CODE Q 0209 VS2SC2412KQ-1 TRT 2SC2412 ROHM S AA REPLACEMENT PARTS Q 0210 VS2SC2412KQ-1 TRT 2SC2412 ROHM S AA Replacement parts which have special safety characteristics are identified Q 0302 VS2SC2412KQ-1 TRT 2SC2412 ROHM S AA in this manual.
  • Page 41 66GF-64H REF No. PARTS DESCRIPTION * CODE REF No. PARTS DESCRIPTION * CODE D 0415 RH-EX0547BMZZ ZENER DIODE TZMC6V2 TFK SMD S AA D 1009 RH-DX0551BMZZ DIODE LL4148 TFK SMD S AA D 0416 RH-EX0547BMZZ ZENER DIODE TZMC6V2 TFK SMD...
  • Page 42 66GF-64H REF No. PARTS DESCRIPTION * CODE REF No. PARTS DESCRIPTION * CODE C 0222 VCCCTV1HH220J CERAM C 22PF 50V 2125SMD S AA C 0375 VCCCTV1HH561J CERAM C 560PF 50V 2125SMD S AA C 0223 VCKYTV1HB333K CERAM C 33NF 50V 2125SMD...
  • Page 43 66GF-64H REF No. PARTS DESCRIPTION * CODE REF No. PARTS DESCRIPTION * CODE C 0818 VCEAGA1CW107M ELEC C 100UF 20% 16V S AA C 0601 RC-FZ0171BMZZ C MKP 15NF 1700V PHILIPS S AE C 0819 VCKYTV1HB102K CERAM C 1NF 50V 2125SMD...
  • Page 44 66GF-64H REF No. PARTS DESCRIPTION * CODE REF No. PARTS DESCRIPTION * CODE R 0245 VRS-TV1JD152J 2125 1.5KOHM 5% 1/10W SMD S AA R 0416 VRS-TV1JD223F 2125 22KOHM 1% 1/10W SMD S AA R 0246 VRS-TV1JD224J 2125 220KOHM 5% 1/10W SMD...
  • Page 45 66GF-64H REF No. PARTS DESCRIPTION * CODE REF No. PARTS DESCRIPTION * CODE R 0530 RR-XZ0212BMZZ FUS RES 10R TAP 5% 1/2W S AB R 0724 VRS-TQ2BD271J OX RE 270 OHM 5% 1/8W SMD S AA R 0532 VRS-TV1JD822J 2125 8,2KOHM 5% 1/10W SMD...
  • Page 46 66GF-64H REF No. PARTS DESCRIPTION * CODE REF No. PARTS DESCRIPTION * CODE R 1026 VRS-TV1JD221J 2125 220 OHM 5% 1/10W SMD S AA (SS) QPLGN0341CEZZ PLUG S AA R 1027 VRD-RA2BE103J RES 10KOHM 5% 1/8W S AA (ST) QPLGN0341CEZZ...
  • Page 47 66GF-64H REF No. PARTS DESCRIPTION * CODE REF No. PARTS DESCRIPTION * CODE JL 0015 QCNW-2736BMZZ WIRE 1 WAY S AF D 1706 RH-EX0409BMZZ ZENER DIODE BZX79C5V6 S AA D 1708 RH-DX0587BMZZ DIODE MR826 PREFORM C6.3 S AP L 0002...
  • Page 48 66GF-64H REF No. PARTS DESCRIPTION * CODE REF No. PARTS DESCRIPTION * CODE C 1356 RC-FZ4104BMNJ POL FILM C 100nF 50V 5% ECQ-V PANASONIC S AA R 1318 VRS-TV1JD103J 2125 10KOHM 5% 1/10W SMD S AA C 1357 RC-FZ4334BMNJ POL FILM C 330nF 50V 5% ECQ-V PANASONIC...
  • Page 49 66GF-64H REF No. PARTS DESCRIPTION * CODE REF No. PARTS DESCRIPTION * CODE C 5415 VCEAGA2CW226M ELEC C 22UF 20% 160V S AC Q 0903 VS2SA1037KQ-1 TRT BC807 SMD S AA Q 0904 VS2SC2412KQ-1 TRT 2SC2412 ROHM S AA C 5417 RC-FZ4222BMNJ...
  • Page 50 66GF-64H REF No. PARTS DESCRIPTION * CODE REF No. PARTS DESCRIPTION * CODE R 5433 VRS-TV1JD101J 2125 100 OHM 5% 1/10W SMD S AA J 0002 VRS-TV1JD000J 2125 0 OHM 5% 1/10W SMD S AA R 5434 VRS-TV1JD102J 2125 1KOHM 5% 1/10W SMD...
  • Page 51 66GF-64H REF No. PARTS DESCRIPTION * CODE REF No. PARTS DESCRIPTION * CODE R 6738 VRS-TV1JD101J 2125 100 OHM 5% 1/10W SMD S AA R 3301 VRS-TQ2BD221J OX RE 220 OHM 5% 1/8W SMD S AA R 6739 VRS-TV1JD101J 2125 100 OHM 5% 1/10W SMD...

  • Page 52: Stereo Led Flashing Codes

    66GF-64H 1.6 1.7 1.5 1.8 1.3 1.2 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.
  • Page 53 66GF-64H NOTES:...
  • Page 54 66GF-63H RECYCLED PAPER PRINTED BY:...

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