User manual FUNAI LT850-M22 SERVICE MANUAL

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Manual abstract: user guide FUNAI LT850-M22SERVICE MANUAL

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[. . . ] SERVICE MANUAL This Service Manual is for the LT850-M22 (A0C70EP) / LT851-M22 (A0C71EP) model. For the LT850-M22 (A0C70EP) / LT851-M22 (A0C71EP) model, the letter (A0C70EP) / (A0C71EP) is printed on the Serial Number Label on the back of the unit. Label "A0C70EP" "A0C71EP" 22 COLOR LCD TELEVISION LT850-M22 / LT851-M22 22 COLOR LCD TELEVISION LT850-M22 / LT851-M22 TABLE OF CONTENTS Specifications . 15-1 The LCD panel is manufactured to provide many years of useful life. [. . . ] Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. If Main Fuse (F601) is blown , check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply. Otherwise it may cause some components in the power supply circuit to fail. NOTE: The voltage for parts in hot circuit is measured using hot GND as a common terminal. For continued protection against fire hazard, replace only with the same type fuse. J1026 BC1002 D1557 D1552 D1555 D1563 R1507 R1506 C1554 LC8. 5 EU 22W 2 CN301 10 C312 +7. 5V BA0C70F0101 2 J271 P-ON+3. 3V D649 BL-ADJ VCOM-PWM BL-SW 28 P-ON+5V J206 P-ON-H2 D513 J210 J264 PANEL+12. 5V J1080 P-ON+3. 3V D508 C1553 D1501 1 C1552 D1553 R1031 R1030 Q1007 D510 J249 J248 R1074 J247 J277 J230 J275 Q303 Q305 P-ON+3. 3V Q1008 PON+11V CN1550 R1005 GND J324 R1029 D1503 R1505 J1002 R1504 D1500 D1502 J218 C301 R1027 C1502 R1012 R1028 Q1004 J1058 J1055 J1028 GND C319 J292 GND R1026 J1053 GND R1509 J1016 J1054 Q1011 D1003 Q1001 D1005 J205 Q1010 C1012 R1042 J1062 J1061 GND BL-ADJ D509 POW-for-1. 1V J252 J261 ALL+3. 3V J334 GND J250 C318 GND D301 L11 C641 15 1 C27 J1003 D1550 C1551 J1027 GND C1504 INV+33V J1006 J1007 INV+33V J1018 J1024 D1664 R1004 C1402 PANEL+12. 5V C639 J266 C1550 D1556 C1500 C1555 INV+33V D1561 J1009 J1010 J1011 J1008 INV+33V Q1501 D1564 D1551 Q1601 D1652 D1663 J1004 R1050 C617 D660 D1660 D1657 J1012 J1013 GND D1602 D1603 GND J1052 GND D1011 J376 BLUE LED +12. 5V D1653 J1014 C1605 C1657 R1606 C1014 J1005 D1764 C1653 R1049 D1010 Q615 Q404 Q10 J196 SIF-N Q1701 D1045 Q406 D653 R652 D1654 C1652 D1601 4 T1600 D1405 R1608 Q1012 D642 L405 C430 JS400 D1012 R1053 R1048 D1403 J1029 D1604 R680 D636 C622 D631 R641 Q605 D646 C1403 C1603 R669 R646 C1404 D643 R670 J293 GND J294 GND D511 Q405 R471 +15V R1609 C1602 R663 J257 ON/OFF-H1 +15V POW-for-1. 1V P-ON-H1 J251 PANEL-5. 5V D629 R640 ALL+3. 3V R1605 Q613 R635 R1604 D617 D624 D620 J222 GREEN LED +25. 6V D632 Q604 PON+11V D638 R639 J193 J269 J204 A-MUTE Protect-1 J239 J208 J229 D1650 D1656 C1651 D1655 D1662 Q612 C1600 J1023 J313 GND J1033 INV+33V C1001 +15V C613 C628 D612 J336 C619 D622 D637 D616 D506 J371 C1754 J258 D1763 D1754 D1753 D1756 J1035 J1036 D1761 GND J1037 J1038 GND GND C614 GND 1 J374 J375 J235 J245 J260 C808 J232 GND J325 GND 9 D802 C814 R684 RESET C1705 C1752 D1703 C7A3 A3 2 1 28 1 CN401 J304 J305 COMP-Y GND 29 R420 2 J370 L406 GND C812 D1701 BC1005 BC1006 D648 J1039 C634 C618 J226 P-ON+3. 3V GND C1703 C616 R817 OUT R818 D618 D674 R1707 D613 J255 L408 C1753 D1704 C620 J364 R685 R697 D803 T601 R689 Q614 J317 T1700 R1706 J253 P-ON+3. 3V Q803 D1752 IC801 C640 J369 GND C422 J190 CVBS J297 J365 GND GND D1702 5. 0mm 7. 5mm D619 J366 J341 GND J231 SP-L J234 Q606 C637 JK402 J223 J207 R690 ALL+3. 3V GND R463 R427 R457 COMP-Pr COMP-Pb R1708 J1041 J1040 D623 J330 C651 R624 R686 D614 D671 R675 R676 Q611 SCART C1702 D1762 J310 2 C1700 D1757 C612 SLOW-SW-IN JK410 R425 JK401 D416 R456 D420 J302 C1751 D1750 INV+33V INV+33V GND C1704 J1043 J1044 C611 AG AG CN1750 D1755 D1751 R1704 C605 R1709 C1755 R1705 J314 R614 BC603 D673 JK403 D419 JK404 C1750 JK405 D672 R617 J295 R661 J273 J320 D414 R698 J192 R401 D1760 BC1008 S-SW D1700 J1042 C1701 D415 J338 D417 GND GND D670 D640 D641 J337 R451 D610 C606 COLD L601 BC1007 D606 BC602 R612 C615 BC802 J191 SLOW-SW-IN R452 R453 D421 R458 D425 J227 J298 COMP-L COMP-R D424 R442 R459 D422 D608 D600 C632 C645 J316 R601 SA601 Q610 HOT SW601 J1021 J1020 BC401 JK413 BC801 J279 Q601 BC604 D603 D410 D411 J299 J240 GND D423 J339 GND D645 D635 Q607 C806 R615 R613 D605 J321 C601 AG J1019 C807 J303 D633 J284 BC601 J300 1 R609 D601 R682 R637 C609 Q603 D628 R616 D805 D404 D413 J307 D406 R441 C602 R445 R610 C804 Q608 J372 J246 J309 D412 2 T 4A H/250V /BLUE 2 CN801 1 AC601 TM601 F601 J322 AG R611 C607 D609 R659 J211 C621 J373 J368 GND BC402 R447 R438 D430 R436 D428 COMP D427 D402 CN103 J1022 FH602 1 L407 J367 GND Q602 C608 /BROWN TM602 FH601 D607 BC605 R449 D408 J283 IC605 D627 Q617 J311 D814 J312 GND D429 1 CN102A R157 ALL+3. 3V J306 6 J329 R602 D604 GND D602 SHOCK WARNING:TO PREVENT ELECTRIC AND FIRE HAZARD. DISCONNECT MAINS PLUG BEFORE FUSE REPLACEMENT ONLY AND REPLACE WITH MARKED. R156 D151 CN802 TOOL NO. 123456789 10 GND D812 D811 D813 D804 C805 10 11 A B C D E F 2 1 10-16 R421 CN404 3 C1650 J1034 D1661 GND D1651 C1658 R806 J1015 +15V/+12V D639 D801 Q802 D815 R805 D502 J328 GND D501 C630 J259 R619 D621 C1604 J1032 J1017 R653 R651 J267 P-ON+3. 3V CN1650 J377 C1601 INV+33V D615 R620 R638 J241 28 J194 J238 D634 BLUE LED +12. 5V D1600 C626 +7. 5V R656 Q804 PON+11V +33V D650 J268 J201 J242 AMP-R Q801 J243 GND J244 AMP-L J236 VDACOUT1 2 J1030 J202 C629 Q609 18 10 29 1 P-ON-H1 J318 J335 GND J200 PON+11V J225 GND R1607 R644 J265 CN403 GND J1060 D1404 J197 TU-CVBS D644 Q616 29 J195 SIF-P 28 D1562 C1003 C1013 J1025 R1002 R11 D1554 C623 R660 J326 TU10 2 1 C14 J198 J1063 L10 P-ON+5V C1501 Q1009 PANEL-5. 5V Protect-3 J262 P-ON-H2 CN402 J1048 R1022 J270 P-ON+5V D1004 J274 J1047 D1006 J1065 BL-SW Q301 Q1006 C18 GND J1046 GND J278 Protect-1 J276 J1066 VCOM R311 Protect-1 PANEL+12. 5V J1072 GND Protect-3 J323 J1045 Q1005 J214 R308 T1500 J1001 C1503 R1508 R1071 R1072 R1019 D1007 C1006 D503 D1504 GND 29 C1505 J1056 GND J1057 J1059 5 D1560 11 GND R1018 J1069 GND R309 Q302 BC1001 D1401 J1068 VCOM-PWM Q1002 J263 +3. 5V BA0C70F01012 Main CBA Bottom View Because a hot chassis ground is present in the power supply circuit, an isolation transformer must be used when repairing. Also, in order to have the ability to increase the input slowly, when troubleshooting this type of power supply circuit, a variable isolation transformer is required. CAUTION !Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. If Main Fuse (F601) is blown , check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply. Otherwise it may cause some components in the power supply circuit to fail. NOTE: The voltage for parts in hot circuit is measured using hot GND as a common terminal. For continued protection against fire hazard, replace only with the same type fuse. D1563 J1026 D1557 R1506 C1554 R1507 BC1002 D1552 D1555 BA0C70F0101 2 C316 J271 P-ON+3. 3V R323 VCOM-PWM BL-ADJ 28 J206 P-ON-H2 BL-SW P-ON+5V LC8. 5 EU 22W P-ON+3. 3V J210 J264 PANEL+12. 5V D508 10 CN301 2 R1551 R314 R1037 C310 +7. 5V J1059 R1036 R1074 R1075 Q1014 Q1013 D1501 C309 C312 C1553 D649 R313 R309 C303 IC301 4 1 R303 11 C311 GND J1069 1 R1030 R1021 R1020 C1007 J1080 R1003 +3. 5V J263 Q302 J214 R304 5 8 J1068 VCOM-PWM Q1002 D1401 C1006 C1021 Protect-3 J278 Protect-1 J275 Q303 R311 PANEL+12. 5V J1072 GND J1066 VCOM J218 BL-SW PANEL-5. 5V Protect-3 GND J1056 GND J1057 R1018 R1071 Q1005 R1072 R1019 BC1001 D1504 J1045 C1009 D1560 C1505 R1508 C1503 J1001 1 Q1500 8 5 C1552 D1553 R1031 C302 Q1007 D513 D510 C1506 29 R318 C315 C314 CN402 C317 C644 1 2 P-ON+5V GND D1007 D503 C313 PON+11V Protect-1 J276 J324 GND J274 C18 C19 T1500 R308 R301 P-ON+3. 3V J249 H. V CAUTION R1502 R1501 R1500 R1503 J323 J248 Q1008 J247 J277 J230 R305 CN1550 Q305 R1005 R1007 GND R310 GND J1046 D1006 Q1006 J1047 J1048 D1503 4 C1502 R1505 J1002 5 R307 Q301 R319 R320 R1029 P-ON+5V L10 J270 P-ON-H2 J262 C301 J1065 R1006 C1008 R1025 R321 R1023 C306 D1004 R1022 C304 R1076 R306 R1012 C1010 R312 R1027 D1502 J1063 Q1009 C1501 R302 J198 1 R1028 R1024 Q1004 J1058 C305 GND D301 C27 15 C641 ALL+3. 3V J334 GND GND J250 J261 J1055 L11 J1028 GND R1504 D509 POW-for-1. 1V C318 J252 C319 BL-ADJ J1062 J1061 R1017 Q1001 C1005 R1016 D1005 R1064 D1500 R1026 J292 J205 R1015 Q1011 D1003 Q1010 C1507 J1054 J1053 GND R1509 J1016 R1042 C1012 R1014 C14 16 IC1001 J1018 J1007 INV+33V C1504 INV+33V J1006 J1027 GND R1058 J1003 R1043 PANEL+12. 5V R22 R13 C15 R18 C1004 C639 GND C24 R12 D1550 C1049 WF8 PIN 29 OF CN404 WF9 PIN 28 OF CN404 Q1024 J1024 C21 C22 R16 R15 9 C1551 J266 R1060 R21 D1664 C623 J326 R660 R1004 C1402 R1002 J1008 INV+33V C1550 R322 TU10 R26 C10 R24 R14 C11 J1009 J1010 J1011 INV+33V D1561 C1500 D1556 C1018 C485 28 C1555 R1560 R1110 C1558 R1062 D1554 R11 Q1501 R1061 D1564 C1661 J1025 1 C1013 R19 R20 8 C1003 C17 D1551 D1562 D1652 R27 J1004 R1760 R1107 Q1601 R1660 J195 SIF-P J196 SIF-N J197 TU-CVBS C617 R1050 R1105 R1550 R1651 C12 R28 Q10 R25 29 CN403 C643 R687 R683 Q404 J376 BLUE LED +12. 5V R473 C1017 R1558 R1658 R1051 GND J1052 R1559 R666 GND J1013 D1660 GND J1014 D1602 C1605 C1657 D1663 D660 D1657 R29 R31 R30 C1758 J1012 C433 R1049 D1010 Q615 C1014 D1011 Q1023 C1015 R1106 D1653 R1406 R472 Q406 R1055 R1008 J1005 C1653 R1407 R467 R468 R462 R469 D653 C432 R1659 R667 C636 D1764 Q1701 D1603 R681 R1032 C1011 D1045 Q1402 R1759 D1654 C1652 R1601 R1600 R1603 R1602 R1758 D644 Q616 J265 L405 C430 R644 GND J1060 D1404 R1403 R1606 T1600 Q1003 Q1012 D1405 4 R474 R652 D1601 R1056 R648 R668 R1046 R1034 R1045 R1035 R1044 R1009 R1065 C1020 C1045 R1063 GND R1608 R1607 D642 R1047 C1606 WF10 PIN 26 OF CN404 1 2 D1012 R1053 R1048 R1052 C1016 D1403 D1604 C1603 R1609 4 C1602 Q405 GND J294 GND J293 R670 R663 C1404 1 J1029 Q1600 R1054 R1059 D643 J225 C815 J202 A-MUTE R464 R1033 R680 8 D636 R646 R1405 C1403 R669 R411 C406 R412 PON+11V J204 R808 C817 R413 R816 J200 PON+11V J335 GND C29 PON+11V J201 R827 D631 R641 C622 Q605 H. V J1030 R1605 5 JS400 R471 R826 R830 C431 D511 D638 R656 Q804 R829 R1109 +15V D646 R643 P-ON-H1 J318 P-ON-H1 J257 J222 GREEN LED +25. 6V ON/OFF-H1 POW-for-1. 1V R639 D620 D632 Q604 D624 R635 CAUTION CN1650 D1650 J269 Protect-1 C1607 J193 +15V PANEL-5. 5V ALL+3. 3V D629 R640 BLUE LED +12. 5V D650 +33V Q613 D617 R674 R642 C625 J268 WF6 PIN 8 OF CN404 WF5 PIN 6 OF CN404 C403 J242 AMP-R J243 GND J244 AMP-L J236 VDACOUT1 C626 +7. 5V J194 D634 D1600 R1604 J238 R1700 C823 J267 R651 P-ON+3. 3V R673 J241 R1701 28 J239 R638 D615 R619 R620 Q801 Q609 C629 J1017 R653 C1601 J377 J229 J208 R501 J251 R823 29 CN404 R671 R672 C630 D639 INV+33V C1604 J1032 D1656 R801 D621 J259 C501 Q802 J328 GND R824 Q612 D501 C1651 D1655 R820 R819 R805 D502 D815 10 18 R806 J1015 +15V/+12V J1023 C1600 R802 J313 GND D801 +15V D506 D616 IC801 GND J336 C619 D622 D612 D637 C613 C628 INV+33V C1001 J1033 D1662 C824 R825 C1658 J1034 D1661 D1651 C1650 GND J371 R1650 3 J369 GND C825 R814 C1754 J258 R1751 C640 D1752 Q803 J245 GND GND J1037 GND J1038 D1703 J1035 J1036 D1761 D1763 C803 C814 D802 9 C808 1 J232 GND J374 C614 D1754 D1756 C1705 C1752 D1753 GND J325 R807 J260 WF4 PIN 4 OF CN404 WF1 PIN 2 OF CN404 R831 C820 C811 RESET C402 2 1 C486 J370 L406 C413 R421 R420 28 29 C442 R427 J235 J375 R684 C812 C819 J317 J253 P-ON+3. 3V Q614 R689 R697 R685 T601 J364 R1706 T1700 C1753 R813 C414 L408 D1701 C647 BC1005 BC1006 R809 D803 C620 D1704 D613 R695 GND H. V CAUTION R810 D674 J255 C634 C618 9 16 D619 D618 C1703 C616 1 R1707 R694 R662 R818 R815 R817 C813 C638 C435 C1706 R812 J1039 D648 R696 OUT R811 R699 L407 P-ON+3. 3V SP-L J231 GND J234 J226 D420 C422 Q1700 8 GND J366 C646 D1702 5. 0mm J341 GND J190 CVBS J297 7. 5mm GND C410 J365 GND R426 C642 R678 R463 R1708 R1703 SCART Q606 4 C1707 5 J1041 CN401 J1040 R505 R457 C481 R1702 COMP-Pr COMP-Pb R424 C409 WF3 PIN 29 OF CN401 WF2 PIN 27 OF CN401 WF7 PIN 22 OF CN401 C637 JK402 J223 D671 R677 R675 R676 J207 R690 R698 D673 J314 D672 GND D670 J295 Q611 D623 C651 C612 J330 SLOW-SW-IN C441 R485 COMP-Y J305 R504 R503 JK410 R624 R686 D614 JK401 R425 C1702 2 GND J304 J310 J303 J302 GND D416 ALL+3. 3V 6 5 3 1 BC1008 C611 C1701 INV+33V INV+33V GND C1704 D1700 J1042 J1043 J1044 D1762 S-SW J192 C405 C1700 D1757 J338 R456 D415 R657 R403 C1751 D1750 R401 C437 C480 D1760 C631 D414 D417 R422 R484 JK405 C408 CN1750 D1755 R1704 C605 R1709 R1705 C1755 AG J320 AG D1751 R1750 JK404 JK403 C1750 D419 R423 R488 J191 SLOW-SW-IN J273 R614 D610 BC603 R604 R617 R661 R452 1 C404 R658 R605 GND 2 C438 J227 COMP-L COMP-R J298 J299 GND J240 R480 J337 D640 R453 R612 D641 C615 D606 COLD L601 BC1007 C606 R443 R481 R451 BC602 R458 D421 BC802 D425 R459 D424 C443 D608 C645 C632 D600 R688 R606 D422 C424 R442 C425 R655 C652 D410 R487 C444 D411 BC401 JK413 J316 D423 J279 R615 Q601 HOT SW601 R654 R601 Q610 SA601 C427 C421 BC801 D645 C434 R450 GND J339 R486 C806 Q607 R625 R626 R627 R628 R629 D603 D635 R649 J368 GND BC402 R502 C482 R437 C418 C484 R436 D428 COMP R446 J1020 J1021 BC604 R613 R607 D605 AG J321 R650 C809 C601 J1019 C807 J1022 C423 C428 C483 R448 R440 R444 C426 R630 D609 C607 J322 AG R611 C810 C429 R803 D633 C621 J373 R659 1 C801 FH602 C602 J284 BC601 J300 D601 R609 R438 R447 R682 R637 J211 R804 2 1 CN103 D402 11 CN802 1 2 C609 Q603 R445 R441 J367 D430 D412 D413 C804 C821 D628 D406 R610 D404 D805 J246 R616 J372 Q608 J283 J307 D408 R449 BC605 D427 R439 6 C420 D429 CN102A Q602 J309 C608 1 D602 2 AC601 CN801 D604 D607 FH601 C151 C155 ALL+3. 3V R618 J329 GND GND C153 D627 Q617 J311 R157 IC605 R602 1 D151 R156 10 C152 C822 C802 J306 C154 D804 D813 C805 D814 J312 GND D811 D812 F E D C B A 10-17 BA0C70F01012 Jack CBA, Function CBA & Junction CBA Top View Function CBA Junction CBA Jack CBA 10-18 BA0C70F01021 Jack CBA, Function CBA & Junction CBA Bottom View Junction CBA Function CBA Jack CBA 10-19 BA0C70F01021 WAVEFORMS WF1 ~ WF6 = Waveforms to be observed at Waveform check points. (Shown in Schematic Diagram. ) Input: PAL Color Bar Signal (with 1kHz Audio Signal) WF1 Pin 2 of CN404 WF4 Pin 4 of CN404 VIDEO 0. 2V 20µs 20 VIDEO-Y 0. 2V 20 20µs WF2 Pin 27 of CN401 WF5 Pin 6 of CN404 S-VIDEO-Y 0. 2V 20µs 20 VIDEO-Pb 0. 2V 20µs 20 WF3 Pin 29 of CN401 WF6 Pin 8 of CN404 S-VIDEO-C 0. 2V 20µs 20 VIDEO-Pr 0. 2V 20µs 20 11-1 LC8. 5PWF WF7 ~ WF10 = Waveforms to be observed at Waveform check points. (Shown in Schematic Diagram. ) Input: PAL Color Bar Signal (with 1kHz Audio Signal) WF7 Pin 22 of CN401 WF10 Pin 26 of CN404 AUDIO(L) 0. 5V 0. 5ms 0. 5m VIDEO-R 0. 5V 20µs 20 WF8 Pin 29 of CN404 VIDEO-B 0. 5V 20µs 20 WF9 Pin 28 of CN404 VIDEO-G 0. 5V 20µs 20 11-2 LC8. 5PWF DIGITAL MAIN CBA UNIT CN1550 1 2 BACK LIGHT HDMICONNECTOR-1 TUNER UNIT BACK LIGHT CN1650 1 2 HDMICONNECTOR-2 MAIN CBA CN1750 1 2 BACK LIGHT S-VIDEO -IN VIDEO-IN D-SUB CONNECTOR AUDIO(L) -IN AUDIO(R) -IN CL3901 STV XA0 OE1 CPV POL TP GND LLV5(+) LLV5(-) LLV4(+) LLV4(-) LLV3(+) LLV3(-) GND LLVCLK(-) LLVCLK(+) GND LLV2(+) LLV2(-) LLV1(+) LLV1(-) LLV0(+) LLV0(-) GND CI CARD SLOT PCAUDIO-IN CN403 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 CN401 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 CN301 1 2 3 4 5 6 7 8 9 10 11 CL301 GND PANEL+12. 5V PANEL+12. 5V PANEL+25. 6V GND P-ON+3. 3V P-ON+3. 3V LCD-5. 5V GND VCOM GND CN3901 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 CN801 SP(R) 1 CL801 SP-GND 2 SP801 SPEAKER R-CH AC601 AC CORD USB JACK CL303 BACKLIGHT-ADJ BACKLIGHT-SW GND VCOM-PWM NU SCART-OUT-SEL(NU) GND AMP(R)-OUT GND AMP(L)-OUT KEY-IN1 AUDIO-MUTE REMOTE LED1 GND DIF-OUT2 GND DIF-OUT1 GND IF-AGC GND SDA SCL GND SIF(-) SIF(+) GND GND TU-CVBS CN3703 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 CN3704 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 CL401 NU HEADPHONE-DET HEADPHONE(L) HEADPHONE(R) GND RGB-AUDIO(L)-OUT RGB-AUDIO(R)-OUT GND RGB-AUDIO(R)-IN RGB-AUDIO(L)-IN GND NU NU GND NU NU GND COM-AUDIO(R) COM-AUDIO(L) GND AUDIO(R) AUDIO(L) GND PC-AUDIO(R) PC-AUDIO(L) GND S-VIDEO-Y-IN GND S-VIDEO-C-IN WIRING DIAGRAMS 12-1 CN802 SP(L) 1 CL802 SP-GND 2 SP802 SPEAKER L-CH COMPONENT -Y-IN COMPONENT -Pb-IN HEADPHONE JACK LCD MODULE ASSEMBLY SCART JACK COMPONENT -Pr-IN COMPONENTAUDIO(L)-IN JACK CBA COMPONENTAUDIO(R)-IN HEADPHONE JACK CN402 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 CN404 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 CN103 1 2 3 4 5 6 7 8 9 10 11 COM-VIDEO-Y-IN GND COM-VIDEO-Pb-IN COM-VIDEO-Pr-IN GND COM-AUDIO(L) COM-AUDIO(R) GND HEADPHONE-DET HEADPHONE(R) HEADPHONE(L) CN452 1 2 3 4 5 6 7 8 9 10 11 CN102A 1 2 3 4 5 6 GND REMOTE AL+3. 3V LED1 PANEL+24V KEY-IN1 CN102B 1 2 3 4 5 6 CN101A 1 2 3 4 5 6 GND REMOTE AL+3. 3V LED1 PANEL+24V KEY-IN1 CN101B 1 2 3 4 5 6 CL302 P-ON-H1 P-ON-H2 RESET PROTECT3 PROTECT1 P-ON+11V GND GND GND AL+3. 3V GND GND P-ON+3. 3V P-ON+3. 3V P-ON+3. 3V P-ON+3. 3V GND GND AL+3. 5V AL+3. 5V AL+3. 5V GND GND AL+5. 5V GND AL+5. 5V P-ON+5V P-ON+5V P-ON+5V CN3701 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 CN3702 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 CL404 S-SW VIDEO-IN GND COM-VIDEO-Y-IN GND COM-VIDEO-Pb-IN GND COM-VIDEO-Pr-IN GND SLOW-SW2(NU) GND NU GND MU GND NU GND SLOW-SW GND FBIN GND RGB-VIDEO-IN GND VIDEO-OUT GND VIDEO-R GND VIDEO-G VIDEO-B A0C70WI JUNCTION CBA FUNCTION CBA EXPLODED VIEWS Cabinet A14 L3 Digital Main CBA Unit B9 B1 L3 B9 CL302 CL303 CL404 CL3901 A5 Junction CBA SP802 B7 L1 SP801 CL801 B8 L8 A3 L9 LCD1 L13 B2 B27 L1 B23 L3 L3 Main CBA B14 L13 L1 AC601 B13 L13 L3 L3 B3 L1 CL802 B8 B4 L3 CL103 Jack CBA L2 B3 Function CBA L8 B12 L3 B3 L2 CL301 CL401 B18 L11 X3301 L19 L3 A16 A1 L19 A17 L3 A4 L1 L1 L1 L4 L5 See Electrical Parts List for parts with this mark. L1 L9 L1 Stand Assembly L1 A6 S5 L17 13-1 A0C70_71CEX Packing L17 S6 Tape X3 Stand Assembly X2-1 X2-2 X4 X1 S2 S4 Tape Packing Tape S3 Packing Tape FR ON T FR ON T S5 S1 Packing Tape Some Ref. Numbers are not in sequence. 13-2 A0C70_71PEX MECHANICAL PARTS LIST PRODUCT SAFETY NOTE: Products marked with a !Before replacing any of these components, read carefully the product safety notice in this service manual. Don't degrade the safety of the product through improper servicing. NOTE: Parts that are not assigned part numbers (---------) are not available. Comparison Chart of Models and Marks Model LT850-M22 LT851-M22 Mark A B Ref. Mark A1 A1 A3 A3 A4 A4 A5 A5 A14 A16 A16 A17 A17 B1 B2 B3 B4 B7 B8 B9 B18 B27 CL103 CL301 CL302 CL303 CL401 CL404 CL801 CL802 CL3901 L1 L2 L3 L8 L9 L11 L19 LCD1 SP801 A B A B A B A B A B A B Description STAND ASSEMBLY A0CN0EZ FRONT CABINET A9372EP FRONT CABINET A9371EP CONTROL PLATE A91N0UH CONTROL PLATE A93N1EP REAR CABINET A0C70EP REAR CABINET A0C71EP DECORATION PLATE A0C70EP DECORATION PLATE A0C71EP POP LABEL A0CN0EP JACK HOLDER A0C70EP JACK HOLDER A0C71EP HP JACK HOLDER A0C70EP HP JACK HOLDER A0C71EP SHIELD BOX A93N2EP STAND HOLDER A9170UH WALL MOUNT BRACKET A84N0UH PCB STUD A0C70EP GASKET A8AF0UH SPEAKER HOLDER A94N0UH GASKET(4X15XT3. 0) A0CN0EP TUNER SHIELD A93N2EP SEPARATION SHEET A9370EP WIRE ASSEMBLY 11PIN FFC 11PIN 60MM WIRE ASSEMBLY 11PIN FFC 11PIN 90MM WIRE ASSEMBLY 29PIN FFC 29PIN 50MM WIRE ASSEMBLY 29PIN FFC 29PIN 50MM WIRE ASSEMBLY 29PIN FFC 29PIN 50MM WIRE ASSEMBLY 29PIN FFC 29PIN 50MM WIRE ASSEMBLY 2PIN 2PIN 100MM RED GLAY WIRE ASSEMBLY 2PIN 2PIN 100MM RED GLAY WIRE ASSEMBLY 24PIN FFC 24PIN 80MM SCREW P-TIGHT 3X10 BIND HEAD+ SCREW P-TIGHT M3X8 BIND HEAD+ SCREW S-TIGHT M3X6 BIND HEAD+ ASSEMBLED SCREW M3X10 DOUBLE SEMS SCREW M4X10 + BLK HEX SCREW #4-40 7MM S-TIGHT SCREW M3X6 BIND HEAD+BLACK LCD MODULE 6BIT NORMAL GRADE SPEAKER S0307F03 Part No. 1ESA23370 1EM123573 1EM123753 1EM325762 1EM326657 1EM124413 1EM124433 1EM224403 1EM224404 ---------1EM327437 1EM327439 1EM327438 1EM327440 1EM123594A 1EM325637 1EM323797 1EM431017 1EM425861 1EM325677 1EM431762 1EM326238 1EM326237 WX1A9370-101 WX1A9170-107 WX1A94F0-101 WX1A94F0-101 WX1A94F0-101 WX1A94F0-101 WX1A9370-203 WX1A9370-203 WX1A9170-101 GBHP3100 GBJP3080 GBJS3060 1EM420633A FPH34100 1EM430139 GBHS3060 UJ22MXA DS08070XQ001 L17 X1 X2-1!X4 S1 S1 S2 S3 S5 A B L4 L5 L9 A B Description RATING LABEL A0C70EP RATING LABEL A0C71EP SCREW P-TIGHT 3X10 BIND HEAD+ SCREW S-TIGHT M3X6 BIND HEAD+ SCREW S-TIGHT M3X8 BIND HEAD+ SCREW TAP TIGHT M3X10 BIND HEAD+BLK NI DOUBLE SEMS SCREW M4X10 + BLK Part No. ------------------GBHP3100 GBJS3060 GBHS3080 GBHS3100 FPH34100 1EM431950 1EM431956 1EM024145 1EM024146 ---------1ESA21092 0EM408420A 1EMN25761 1EMN25762 XB00M00MS001 Ref. Mark SP802 X3301 S4 S6 X3 X3 A B Description SPEAKER S0307F03 THERMOSTAR TMS-L-2(12*12HC) Part No. DS08070XQ001 XK10000X4003 1EM322872A 1EM424597 NH201RD NH203RD PACKING SET BAG A81N0UH STAND BAG A81N0UH ACCESSORIES REMOTE CONTROL NH201RD REMOTE CONTROL NH203RD PACKING CARTON A0C70EP CARTON A0C71EP STYROFOAM TOP A9372EP STYROFOAM BOTTOM A9372EP SERIAL NO. [. . . ] ! Description TRANS INVERTER HVT-179 or TRANS INVERTER TK. 7610A. 101 or TRANS INVERTER HVT-179 or TRANS INVERTER TK. 7610A. 101 or TRANS INVERTER HVT-179 or TRANS INVERTER TK. 7610A. 101 or Part No. LTZ3PZ0XB012 LTZ3PZDAR008 LTZ3PZ0XB012 LTZ3PZDAR008 LTZ3PZ0XB012 LTZ3PZDAR008 BC601 BEADS INDUCTOR FBR07HA121SB-00 LLBF00STU030 or BEAD INDUCTOR B29 RID 2. 3X7. 5X7. 5T LLEF0S0XM002 BEADS INDUCTOR FBR07HA121SB-00 LLBF00STU030 or BEAD INDUCTOR B29 RID 2. 3X7. 5X7. 5T LLEF0S0XM002 BEADS INDUCTOR FBR07HA121SB-00 LLBF00STU030 or BEAD INDUCTOR B29 RID 2. 3X7. 5X7. 5T LLEF0S0XM002 WIRE CP STP-S-0. 50 or WIRE CP STP-S-0. 60 or WIRE CP 6113-05603-0220 or WIRE CP CP0. 56 XZ40F0REN001 XZ40F0REN002 XZ40F0SHG001 XZ40F0XRC001 BC602 BC603 JACK ASSEMBLY Ref. Description JACK ASSEMBLY Consists of the following: JACK CBA FUNCTION CBA JUNCTION CBA Part No. A0C70MJC-001 ---------------------------- BC604 BC605 BEADS INDUCTOR FBR07HA121SB-00 LLBF00STU030 or BEAD INDUCTOR B29 RID 2. 3X7. 5X7. 5T LLEF0S0XM002 WIRE CP STP-S-0. 50 or WIRE CP STP-S-0. 60 or WIRE CP 6113-05603-0220 or WIRE CP CP0. 56 XZ40F0REN001 XZ40F0REN002 XZ40F0SHG001 XZ40F0XRC001 XZ40F0REN001 XZ40F0REN002 XZ40F0SHG001 XZ40F0XRC001 JACK CBA Ref. [. . . ]

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