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LC-20A2M

No part of this publication may be reproduced,
stored in a retrieval system, or transmitted in
any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, without
prior written permission of the publisher.

SHARP CORPORATION
AV Systems Group
Quality & Reliability Control Center
Yaita, Tochigi 329-2193, Japan

D JAPAN P JAPAN

TQ0000-S

May. 2001 Printed in Japan

NA. KG

Содержание LC-20A2M

Страница 1: ...o its original condition and only parts identical to those specified should be used MODEL LC 20A2M Example of suffix symbol The component parts of this model are partially different depending on their suffix symbols Before servicing the units be sure to check the suffix symbol on the model label that is applied on the back of the unit LCD COLOUR TV MODEL LC 20A2M 13V 3 7A 48W SERIAL NO SHARP CORPO...

Страница 2: ...y create shock fire or other hazards WARNING 1 For continued safety no modification of any circuit should be attempted 2 Disconnect AC power before servicing BEFORE RETURNING THE RECEIVER Fire Shock Hazard Before returning the receiver to the user perform the following safety checks 1 Inspect all lead dress to make certain that leads are not pinched and check that hardware is not lodged between th...

Страница 3: ...3 LC 20A2M Specifications ...

Страница 4: ...4 LC 20A2M Operation Manual Main unit front view Remote control Main unit rear view ...

Страница 5: ...5 LC 20A2M Dimensions Unit mm ...

Страница 6: ...pieces of tape Disconnect the connection cables Note Some pieces of tape are located below the PWBs To access such tape detach the PWBs peel off the tape and disconnect the cables 8 Disconnect the connectors from the PWBs 2 Table Stand Table Stand Cover Cabinet B Cabinet A 5 4 1 Terminal Cover 6 7 6 8 6 9 6 6 6 5 6 4 6 3 6 2 6 1 3 3 Speaker Assembly Left Speaker Assembly Right SC1201 SC1202 P753 P...

Страница 7: ...lock screws from the MAIN PWB 10 Remove the four lock screws from the Y C SEPARATION PWB 11 Remove the three lock screws from the INVERTER PWB 12 Remove the lock screw from the TERMINAL PWB and the lock screw from the grounding terminal Detach the reinforcement plate too 13 Remove the two lock screws from the LCD display unit 14 Remove the three lock screws from the OPERATION PWB ...

Страница 8: ...lection sheets 17 Detach the top and bottom fluorescent lamps 18 Remove the photoconductive plate 19 Detach the top and bottom reflection sheets 20 Detach the ITO sheet 21 Detach the diffusion sheet and reflection deflection plate Fluorescent Lamp Top KLMP 0101CEZZ Lamp Reflector PSHEP0223CEZZ LCD Display Unit Fluorescent Lamp Bottom KLMP 0102CEZZ Lamp Reflector Bottom PSHEP0224CEZZ Diffusion Shee...

Страница 9: ...eck the tuner and its peripheral parts No Is input at pin 1 of IC402 as specified Check the line in question Yes Check IC402 and its peripheral parts Yes No Are pins 2 and 4 of IC402 at H and L respectively Are pins 65 and 66 of IC2001 at H and L respectively No VIDEO 1 output Yes No Is input at pin 1 of IC402 as specified Check the line in question Yes No Are pins 2 and 4 of IC402 both at L No VI...

Страница 10: ...able Replace F3701 and F3702 Check S4701 and connection cable Check the secondary side load of T701 Fluorescent lamp Yes No Does F7751 function Yes No Is Pin 34 of IC1201 at H Yes No Are the oscillation waveforms at the primary side of T7751 6 as specified Yes Replace F7751 No Is input at pin 71 of IC802 as specified Check SC3301 SC line and peripheral parts Yes Check the line IC1201 and its perip...

Страница 11: ...its peripheral parts Check the line in question IC7305 and its peripheral parts Yes Check the speakers and their peripheral parts No sound from headphone Yes No Is pin 55 of IC2001 at L Check the headphone and its peripheral parts Check Q306 J4001 and their peripheral parts No sound from output line Yes No Is pin 52 of IC2001 at L No Are outputs at pins 1 and 7 of IC902 as specified Yes Check the ...

Страница 12: ...s are skipped up to the next receivable channel Adjustments All the items can be adjusted one by one with the MENU CH and VOL keys on the set and the remote controller The MENU key serves to toggle between adjustment items the next item is selected Let s suppose that the item at the bottom line is now selected Press the MENU key and the item at the top line on the next page will be selected The TV...

Страница 13: ...to get the Y reading in the range of BB thru CA 3 Then enter the above setting if made in the NTSC TAMP adjustment in the following items in the manual mode PAL TAMP SECAM TAMP PAL M TAMP and PAL N TAMP 0 1 2 3 4 5 6 7 8 9 10 11 12 13 0 1 2 2 C N P S P P T R G B G G 3 O T A E A A V C C C 3 1 4 M S L C L L U U U 5 C A H T T T 6 B T M M N O O O B B 7 I T A P F F F 3 4 8 A A M T T T E F F F 9 S M P A...

Страница 14: ...5 14 LC 20A2M 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H CHASSIS LAYOUT MAIN Unit Side A Y C SEPARATION Unit Side A MAIN Unit Side B Y C SEPARATION Unit Side B OPERATION Unit INVERTER Unit TERMINAL Unit ...

Страница 15: ...17 16 LC 20A2M 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H BLOCK DIAGRAM ...

Страница 16: ...TION OF RESISTOR CAPACITOR RESISTOR 1 The unit of resistance Ω is omitted K kΩ 1000 Ω M MΩ 2 All resistors are 5 unless otherwise noted J 5 F 1 D 0 5 3 All resistors are Carbon type unless otherwise noted C Solid W Cement S Oxide Film T Special N Metal Coating CAPACITOR 1 All capacitors are mF unless otherwise noted P pF mmF 2 All capacitors are Ceramic type unless otherwise noted ML Mylar TA Tant...

Страница 17: ...19 6 5 4 3 2 1 A B C D E F G H LC 20A2M Ë OPERATION Unit ...

Страница 18: ...21 20 LC 20A2M 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H Ë MAIN Unit 1 2 ...

Страница 19: ...23 22 LC 20A2M 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H Ë MAIN Unit 2 2 ...

Страница 20: ...25 24 LC 20A2M 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H Ë TERMINAL Unit ...

Страница 21: ...27 26 LC 20A2M 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H Ë Y C SEPARATION Unit ...

Страница 22: ...28 6 5 4 3 2 1 A B C D E F G H LC 20A2M Ë INVERTER Unit ...

Страница 23: ...29 6 5 4 3 2 1 A B C D E F G H LC 20A2M Y C SEPARATION Unit Side A Y C SEPARATION Unit Side B PRINTED WIRING BOARD ASSEMBLIES ...

Страница 24: ...30 6 5 4 3 2 1 A B C D E F G H LC 20A2M MAIN Unit Side A ...

Страница 25: ...31 6 5 4 3 2 1 A B C D E F G H LC 20A2M MAIN Unit Side B ...

Страница 26: ...32 6 5 4 3 2 1 A B C D E F G H LC 20A2M OPERATION Unit Wiring Side TERMINAL Unit Wiring Side ...

Страница 27: ...33 6 5 4 3 2 1 A B C D E F G H LC 20A2M INVERTER Unit Wiring Side ...

Страница 28: ...TC4W66F AE IC2004 VHiBR24C08F 1 J BR24C08F E2 AF IC2005 VHiBA7046F 1 J BA7046F AF TRANSISTORS Q201 VS2SC2712Y 1 J 2SC2712Y AB Q202 VS2SC2712Y 1 J 2SC2712Y AB Q203 VSFMY3 1 J FMY3 AB Q204 VS2SC2712Y 1 J 2SC2712Y AB Q302 VS2SA1162Y 1 J 2SA1162Y AB Q303 VSDTC314TK 1 J DTC314TK AC Q304 VSDTC314TK 1 J DTC314TK AC Q306 VSDTC144EE 1 J DTC144EE AA Q308 VSDTC144EE 1 J DTC144EE AA Q701 VS2SA1162Y 1 J 2SA116...

Страница 29: ...EZZ J 1 0 10V Ceramic AB C806 RC KZ1025CEZZ J 1 0 10V Ceramic AB C807 VCKYCY1HB331K J 330p 50V Ceramic AA C808 VCKYCY1HB331K J 330p 50V Ceramic AA C809 VCEAPK1CN107M J 100 16V Electrolytic AD C810 VCKYCY1EF104Z J 0 1 25V Ceramic AA C811 VCKYCY1HB331K J 330p 50V Ceramic AA C812 RC KZ1025CEZZ J 1 0 10V Ceramic AB C813 RC KZ1025CEZZ J 1 0 10V Ceramic AB C814 VCKYCY1HB102K J 1000p 50V Ceramic AA C815 ...

Страница 30: ... VRS CY1JF473F J 47k 1 16W Metal Oxide AA R209 VRS CY1JF123F J 12k 1 16W Metal Oxide AA R210 VRS CY1JF242F J 2 4k 1 16W Metal Oxide AA R211 VRS CY1JF332F J 3 3k 1 16W Metal Oxide AA R212 VRS CY1JF332F J 3 3k 1 16W Metal Oxide AA R213 VRS CY1JF682F J 6 8k 1 16W Metal Oxide AA R214 VRS CY1JF122F J 1 2k 1 16W Metal Oxide AA R215 VRS CY1JF102J J 1 0k 1 16W Metal Oxide AA R216 VRS CY1JF153J J 15k 1 16W...

Страница 31: ... 1 16W Metal Oxide AA R917 VRS CY1JF105J J 1 0M 1 16W Metal Oxide AA R918 VRS CY1JF822F J 8 2k 1 16W Metal Oxide AA R919 VRS CY1JF822F J 8 2k 1 16W Metal Oxide AA R920 VRS CY1JF822F J 8 2k 1 16W Metal Oxide AA R921 VRS CY1JF822F J 8 2k 1 16W Metal Oxide AA R922 VRS CY1JF223J J 22k 1 16W Metal Oxide AA R923 VRS CY1JF223J J 22k 1 16W Metal Oxide AA R924 VRS CY1JF473J J 47k 1 16W Metal Oxide AA R925 ...

Страница 32: ... J 22k 1 16W Metal Oxide AA R2060 VRS CB1JF101J J 100 1 16W Metal Oxide AA R2061 VRS CY1JF223J J 22k 1 16W Metal Oxide AA R2062 VRS CY1JF333J J 33k 1 16W Metal Oxide AA R2063 VRS CY1JF333J J 33k 1 16W Metal Oxide AA R2067 VRS CY1JF101J J 100 1 16W Metal Oxide AA R2068 VRS CY1JF101J J 100 1 16W Metal Oxide AA R2069 VRS CY1JF000J J 0 1 16W Metal Oxide AA R2074 VRS CY1JF000J J 0 1 16W Metal Oxide AA ...

Страница 33: ...EAPF1CN476M J 47 16V Electrolytic AD C7344 VCEAPF1CN476M J 47 16V Electrolytic AD C7345 VCEAPH1CN106M J 10 16V Electrolytic AD C7347 VCEAPK1CN107M J 100 16V Electrolytic AD C7348 VCEA4A1CN228M J 2200 16V Electrolytic AF C7349 VCKYTV1CF105Z J 1 0 16V Ceramic AB C7350 VCKYTV1CF104Z J 0 1 16V Ceramic AA C7351 VCKYTV1CF104Z J 0 1 16V Ceramic AA C7352 VCKYCY1CF104Z J 0 1 16V Ceramic AA C7353 VCEAPF0JN1...

Страница 34: ...C3453 VHiBA09T FP 1 J BA09FP E2 AG IC3454 VHiMM1031XM 1 J MM1031XMR AF TRANSISTORS Q3201 VSDTC144EE 1 J DTC144EE AA Q3202 VSDTC144EE 1 J DTC144EE AA Q3203 VSDTC144EE 1 J DTC144EE AA Q3204 VS2SC2712Y 1 J 2SC2712Y AB Q3205 VS2SC2712Y 1 J 2SC2712Y AB Q3301 VS2SC2712Y 1 J 2SC2712Y AB Q3401 VS2SC2712Y 1 J 2SC2712Y AB Q3402 VS2SC2712Y 1 J 2SC2712Y AB Q3403 VSDTC144EE 1 J DTC144EE AA Q3404 VS2SK1467 1 J ...

Страница 35: ...1 16W Metal Oxide AA R3431 VRS CY1JF104J J 100k 1 16W Metal Oxide AA R3432 VRS CY1JF104J J 100k 1 16W Metal Oxide AA R3435 VRS CY1JF103J J 10k 1 16W Metal Oxide AA R3461 VRS CY1JF104J J 100k 1 16W Metal Oxide AA R3462 VRS CY1JF104J J 100k 1 16W Metal Oxide AA R3463 VRS CY1JF102J J 1 0k 1 16W Metal Oxide AA R3464 VRS CY1JF102J J 1 0k 1 16W Metal Oxide AA R3465 VRS TV1JD1R0J J 1 0 1 16W Metal Oxide ...

Страница 36: ...1808CEZZ J Cover LED AE 1 3 GCOVA1798CESA J Cover Front L AF 1 4 GCOVA1917CEKA J Cover Front R AG 1 5 GCOVA1932CESA J Cover IR Filter AC 1 6 GDORF2048CEKA J Front Door AF 1 7 HDECA0759CESA J Decoration Panel BW 1 8 HiNDP5645CESA J Indication Plate AD Cabinet Side 1 9 HiNDP5666CESA J Indication Plate AD Door Side 1 10 JBTN 2057CEKA J Power Button AF 1 11 LX HZ3111CEFN J Screw x4 AB 1 12 MSPRC0203CE...

Страница 37: ...5 6 17 58 25 62 36 47 52 50 2 11 2 11 2 10 2 17 2 1 47 52 33 45 41 44 3 52 52 34 50 56 39 22 19 19 19 19 21 13 9 10 8 24 7 7 2 13 23 26 2 6 2 6 2 5 2 13 2 5 2 8 2 7 2 13 2 12 18 2 9 52 20 29 Terminal Unit Inverter Unit Y C Separation Unit Main Unit Operation Unit 1 11 1 12 1 8 1 14 1 20 1 4 1 15 1 2 1 3 1 1 1 11 1 9 1 6 1 7 1 5 1 10 1 4 31 52 37 46 1 17 1 16 1 19 1 19 1 18 1 13 1 21 ...

Страница 38: ...CEZZ J Core AH 52 XBBSD30P06000 J Screw x12 AA 53 XBBSF30P04000 J Screw x4 AA 54 XBBSF30P08000 J Screw x6 AA 55 XBBSF40P25000 J Screw x4 AA 56 XBPSD30P06JS0 J Screw AA 57 XEBSD30P08000 J Screw x8 AA 58 XEBSD40P10000 J Screw x2 AA 59 XEBSF30P08000 J Screw x4 AA 60 XEBSF40P16000 J Screw x5 AA 61 XTBSF30P12000 J Screw x4 AA 62 CZETK0093CE02 J Insulating Sheet AN SUPPLIED ACCESSORIES CPNLS1031CE03 J S...

Страница 39: ...G OF THE SET Packing Case AC Cord AC Adaptor Buffer Material Reinforcing Pad Speaker Net Reinforcing Pad Wireless Remote Conrol Antenna Cable Wrapping Paper Caution Card Accessories Operation Manual Cable Clamp Batteries ...

Страница 40: ...a retrieval system or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise without prior written permission of the publisher SHARP CORPORATION AV Systems Group Quality Reliability Control Center Yaita Tochigi 329 2193 Japan D JAPAN P JAPAN TQ0000 S May 2001 Printed in Japan NA KG ...

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