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Sharp LC-22SV2E Service Manual
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Sharp LC-22SV2E Service Manual

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In the interests of user-safety (Required by safety regulations in some countries) the set should be restored
to its original condition and only parts identical to those specified should be used.
» IMPORTANT SERVICE SAFETY PRECAUTION ................................................................................... 2
» SPECIFICATIONS ................................................................................................................................... 4
» OPERATION MANUAL ............................................................................................................................ 5
» DIMENSIONS .......................................................................................................................................... 7
» REMOVING OF MAJOR PARTS ............................................................................................................. 8
» ADJUSTING PROCEDURE OF EACH SECTION ................................................................................. 11
» TROUBLE SHOOTING TABLE ............................................................................................................. 20
» CHASSIS LAYOUT ................................................................................................................................ 26
» BLOCK DIAGRAM ................................................................................................................................. 28
» OVERALL WIRING DIAGRAM .............................................................................................................. 30
» DESCRIPTION OF SCHEMATIC DIAGRAM ........................................................................................ 32
» SCHEMATIC DIAGRAM ........................................................................................................................ 33
» PRINTED WIRING BOARD ASSEMBLIES ........................................................................................... 56
» REPLACEMENT PARTS LIST .............................................................................................................. 67
» PACKING OF THE SET ......................................................................................................................... 83
SERVICE MANUAL
LCD COLOUR TELEVISION
MODEL
CONTENTS
SHARP CORPORATION
LC-22SV2E
LC-22SV2E
S02R9LC22SV2E
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Summary of Contents for Sharp LC-22SV2E

  • Page 1: Table Of Contents

    LC-22SV2E SERVICE MANUAL S02R9LC22SV2E LCD COLOUR TELEVISION LC-22SV2E MODEL In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its original condition and only parts identical to those specified should be used.

  • Page 2: Important Service Safety Precaution

    LC-22SV2E IMPORTANT SERVICE SAFETY PRECAUTION Ë Service work should be perfomed only by qualified service technicians who are thor- oughly familiar with all safety checks and the servicing guidelines which follow: ground, such as electrical conduit or electrical ground WARNING connected to an earth ground.
  • Page 3 LC-22SV2E Precautions for using lead-free solder 1 Employing lead-free solder "Inverter PWB" of this model employs lead-free solder. The LF symbol indicates lead-free solder, and is attached on the PWBs and service manuals. The alphabetical character following LF shows the type of lead-free solder.

  • Page 4: Specifications

    LC-22SV2E SPECIFICATIONS Item 22" LCD COLOUR TV, Model: LC-22SV2E LCD panel 22" Advanced Super View & BLACK TFT LCD Number of dots 1,229,760 dots (854 3 dots) Video colour system PAL/SECAM/NTSC 3.58/NTSC 4.43/PAL 60 TV-Standard (CCIR) B/G, I, D/K, L...

  • Page 5: Operation Manual

    LC-22SV2E OPERATION MANUAL...
  • Page 6 LC-22SV2E...

  • Page 7: Dimensions

    LC-22SV2E DIMENSIONS Unit: mm MENU TV/VIDEO 490.62 AV-IN 1 AV-IN 2 S-VIDEO AUDIO OUT VIDEO AUDIO POWER INPUT DC13V 165.4...

  • Page 8: Removing Of Major Parts

    LC-22SV2E REMOVING OF MAJOR PARTS 1. Remove the two terminal covers. 2. Remove the table stand fixing screws (4 pcs.). 3. Remove the cabinet B fixing screws (17 pcs.). 4. Remove the cabinet B after opening from the direction of an arrow.
  • Page 9 LC-22SV2E 7. Remove the top cover fixing screws (2 pcs.). 8. Remove the control PWB fixing screws (2 pcs.). 9. Remove the digital PWB fixing screws (4 pcs.). 10. Detatch the chassis frame cover fixing hooks (5 pcs.). 11. Remove the 21-pin terminal fixings screws (2 pcs.).
  • Page 10 LC-22SV2E » Precautions in handling the LCD panels 1. Work in a clean room (with humidities below 50%). 2. Be sure to wear an anti-static armband. 3. Handle the panels on an electroconductive mat. 4. Be careful not to fall, shake and shock the panels.

  • Page 11: Adjusting Procedure Of Each Section

    LC-22SV2E ADJUSTING PROCEDURE OF EACH SECTION The best adjustment is made before shipping. If any position deviation is found or after part replace is performed, adjust as follows. Preparation for adjustments Use the dedicated AC adaptor or stable DC power supply.
  • Page 12 LC-22SV2E 4. Adjustment 4-1. +B (5V) adjustment (R3750 : Main Unit) 1) Receive the colour bar signal. 2) Adjust the voltage of the positive (+) side of C3724 to 5.00 ±0.02V. Note: Since 5.0V is a reference voltage of all power voltage, adjust it precisely.
  • Page 13 LC-22SV2E 5. Lamp error detection 5-1. Functional description This LCD colour television has a function (lamp error detection) to be turned OFF automatically for safety when the lamp or lamp circuit is abnormal. If the lamp or lamp circuit is abnormal, or some other errors happen, and the lamp error detection is executed, the followings occur.
  • Page 14 LC-22SV2E Pin functions of microprocessor IC (IC2001) RH-iXA380WJZZQ Pin name Function Pin name Function N. C. Open REQ_OUT Completion output of external bus mode shift (H;Normal, L;External bus mode) N. C. Open HPMUTE Headphone mute output (H;On, L;off) SCL2 SMUTE I2C bus clock data output Audio mute output (H;On, L;Off)
  • Page 15 LC-22SV2E Adjustment process mode menus at a glance Page Item Initial setting Function Adjust/modify MODEL SV2E Model name NTSC PWM FREQ Dimmer frequency setting PAL PWM FREQ Dimmer frequency setting NTSC PWM DUTY Dimmer duty setting PAL PWM DUTY Dimmer duty setting...
  • Page 16 LC-22SV2E Page Item Initial setting Function Adjust/modify Comb filter setting Comb filter setting KILVL 08 Color killer level setting KILHY 05 Color killer hysteresis setting VSYNC DELAY Vsync delay control setting DVC0 -720 Crystal oscillator center frequency adjustment AUTO LCK...
  • Page 17 LC-22SV2E Page Item Initial setting Function Adjust/modify SECAM BRIGHTNESS Brightness setting(TV,composite,S-video) SECAM PEAKING FILTER Peaking filter setting(TV,composite,S-video) SECAM TV H-PEAKING Picture quality setting(TV) SECAM AV H-PEAKING Picture quality setting(composite,S-video) SECAM AVO START Horizontal position setting SECAM SFIF Horizontal position setting...
  • Page 18 LC-22SV2E Page Item Initial setting Function Adjust/modify PAL 01 Initial setting PAL 02 Setting PAL 03 Setting PAL 04 Start palse position PAL 05 Start palse position PAL 06 Horizontal display position PAL 07 Vertical display position PAL 09 Panel clock...
  • Page 19 LC-22SV2E Page Item Initial setting Function Adjust/modify EXT CONTROL External control select EXT MODE UART External mode select UPDATE MODE NORMAL Update mode select TEXT RESET Text reset NR DATA Noise reduction IC data sending NR 40H Noise reduction IC data...

  • Page 20: Trouble Shooting Table

    LC-22SV2E TROUBLE SHOOTING TABLE...
  • Page 21 LC-22SV2E TROUBLE SHOOTING TABLE (Continued)
  • Page 22 LC-22SV2E TROUBLE SHOOTING TABLE (Continued)
  • Page 23 LC-22SV2E TROUBLE SHOOTING TABLE (Continued)
  • Page 24 LC-22SV2E TROUBLE SHOOTING TABLE (Continued)
  • Page 25 LC-22SV2E TROUBLE SHOOTING TABLE (Continued)

  • Page 26: Chassis Layout

    LC-22SV2E OPERATION Unit CHASSIS LAYOUT DIGITAL Unit MAIN Unit R/C, LED Unit...
  • Page 27 LC-22SV2E INVERTER Unit...

  • Page 28: Block Diagram 1/2

    LC-22SV2E BLOCK DIAGRAM 1/2 DIGTAL BLOCK DIAGRAM TO MAIN (MA) SCALLER CONTROL SCSB,SCK,SSI,SRDYB,SSO SC401 CSYNC SYNC SEPARATER TO MAIN IC401 V2V0 V2V0 (ME) SC402 R/G/ B SCALLER V_AV1 Y/UV IC801 IC4101 CONTROLER PANEL IC4561 V1_S C V1_I N V2_V FSW1...
  • Page 29 LC-22SV2E BLOCK DIAGRAM 2/2 MAIN BLOCK DIAGRAM TUNER SPEAKER AUDIO SPEAKER IC1901 OUT AMP POWER AMP IC1903 IC3305 OUTPUT TV_ V L/R AUDIO L/R AUDIO OUT AMP OUTPUT J3902,J3903 INPUT IC3500 J2202 HEADPHONE HEADPHONE J2204 IC304 VIDEO IN J2203 V AV1...

  • Page 30: Overall Wiring Diagram

    LC-22SV2E OVERALL WIRING DIAGRAM...
  • Page 31 LC-22SV2E...

  • Page 32: Description Of Schematic Diagram

    LC-22SV2E DESCRIPTION OF SCHEMATIC DIAGRAM VOLTAGE MEASUREMENT CONDITION: 1. The voltages at test points are measured on exclusive AC adaptor and the stable supply voltage of AC 120V. Signals are fed by a color bar signal generator for servicing purpose and the above voltages are measured with a 20k ohm/V tester.

  • Page 33: Schematic Diagram

    LC-22SV2E SCHEMATIC DIAGRAM Ë OPERATION Unit...
  • Page 34 LC-22SV2E Ë DIGITAL Unit-1/5...
  • Page 35 LC-22SV2E...
  • Page 36 LC-22SV2E Ë DIGITAL Unit-2/5...
  • Page 37 LC-22SV2E...
  • Page 38 LC-22SV2E Ë DIGITAL Unit-3/5...
  • Page 39 LC-22SV2E...
  • Page 40 LC-22SV2E Ë DIGITAL Unit-4/5...
  • Page 41 LC-22SV2E...
  • Page 42 LC-22SV2E Ë DIGITAL Unit-5/5...
  • Page 43 LC-22SV2E...
  • Page 44 LC-22SV2E Ë MAIN Unit-1/5...
  • Page 45 LC-22SV2E...
  • Page 46 LC-22SV2E Ë MAIN Unit-2/5...
  • Page 47 LC-22SV2E...
  • Page 48 LC-22SV2E Ë MAIN Unit-3/5...
  • Page 49 LC-22SV2E...
  • Page 50 LC-22SV2E Ë MAIN Unit-4/5...
  • Page 51 LC-22SV2E...
  • Page 52 LC-22SV2E Ë MAIN Unit-5/5...
  • Page 53 LC-22SV2E...
  • Page 54 LC-22SV2E Ë INVERTER Unit...
  • Page 55 LC-22SV2E Ë R/C, LED Unit...

  • Page 56: Printed Wiring Board Assemblies

    LC-22SV2E PRINTED WIRING BOARD ASSEMBLIES DIGITAL Unit (Side-A) SC4902 SC4901 SC4562 C490 R4155 L4901 FB4116 R4671 R4672 R4673 R4674 R4675 R4676 R4677 R4678 R4679 R4680 R4681 R4682 FL4567 FL4568 FL4569 FL4510 FL4511 FL4512 FB4119 C491 C4914 C4910 C4915 C4909 C4912...
  • Page 57 LC-22SV2E C4145 X4101 IC4103 R4141 R4140 R4138 FB4106 C4908 C4906 C4109 C4118 L4901 L4902 C4116 C4115 C4104 FB4102 C4113 C4141 C4913 C4902 FB4111 FB4117 FB4110 FB4101 L805 IC4101 R816 C839 R810 R813 C818 C822 P4102 C4912 C4901 C838 C833 C4120...
  • Page 58 LC-22SV2E DIGITAL Unit (Side-B) FB4103 R4127 R4125 C4140 C4106 C4107 R4122 C4103 C4139 R4152 FB4115 R4134 C4119 IC4104 R4128 D4101 C4124 C4126 C4129 FB4105 C4136 C4135 IC4102 R4136 R4123 R4130 R4131 R4135 R4129 C4134 R4184 R4153 C4146 FB4113 R4183 FB4114...
  • Page 59 LC-22SV2E R4901 FL4903 R4904 R4902 FB4913 TP4570 R4691 R4693 R4627 R4725 R4717 R4692 R4608 R4780 R4771 R4783 R4773 R4786 R4775 R4618 Q4563 R4613 R4660 IC4708 IC4706 IC4704 Q4561 D4569 R4659 R4810 R4811 R4812 R4663 R4762 R4761 R4764 C4563 Q4566 R4666...
  • Page 60 LC-22SV2E INVERTER Unit (Side-A) C6580 D6554 FH6557 FH6558 C6572 R6565 R6561 R6562 D6553 R6564 C6578 C6577 C6570 C6569 C6575 P6554 P6553 INVERTER Unit (Chip Parts Side-A)
  • Page 61 LC-22SV2E FH6554 FH6553 FH6552 FH6551 D6551 R6554 D6552 R6558 Q6553 R6555 R6551 C6562 C6563 C6555 C6554 C6560 C6561 P6552 P6551...
  • Page 62 LC-22SV2E MAIN Unit (Side-A)
  • Page 63 LC-22SV2E...
  • Page 64 LC-22SV2E SC2201 SC2001 P2003 C1679 R1646 C1678 R1645 C1680 C1673 Q1601 R1615 IC2002 Q2029 C2221 C2212 R2007 C2225 R2084 Q2030 C2214 R2004 C2203 C2229 L2201 C2222 R2010 TP2003 R2062 C2228 R2208 C2204 Q2205 X2002 R2204 R2011 R2201 L2200 L2202 L2203...
  • Page 65 LC-22SV2E SC2202 P3706 C1641 C3406 C1646 R3405 C1640 R3495 C1674 R3456 C3407 IC3402 IC1615 C1645 Q1602 R3402 R3457 IC1605 IC1603 C1642 C1675 R1623 D3404 R1682 D3907 C1679 R1619 C3401 C1677 R1646 IC1614 C3410 C1678 C1676 C1639 C1644 IC3401 R3492 R1645...
  • Page 66 LC-22SV2E OPERATION Unit (Side-A) R133 R131 R130 SW136 OPERATION Unit (Chip Parts Side-A) R/C, LED Unit (Side-A) C101 D103 D102 D104 IC101 R116 R115 Q104 R103 R114 Q101 Q106 C104 R102 R113 Q105 R106 R/C, LED Unit (Chip Parts Side-A)

  • Page 67: Replacement Parts List

    LC-22SV2E Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKB522DE01 PARTS LIST MAIN UNIT PARTS REPLACEMENT TUNER NOTE: THE PARTS HERE SHOWN ARE SUPPLIED AS AN Replacement parts which have these special safety characteristics ASSEMBLY BUT NOT INDEPENDENTLY.
  • Page 68 LC-22SV2E Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKB522DE01 L2202 VP-1M4R7J1R2NY J Peaking 4.7µH L2203 VP-1M3R3JR93NY J Peaking 3.3µH MAIN UNIT (Continued) L2204 VP-1M5R6J1R2NY J Peaking 5.6µH L2205 VP-1M3R3JR93NY J Peaking 3.3µH Q2205 VS2SC3928AR-1Y J 2SC3928AR...
  • Page 69 LC-22SV2E Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKB522DE01 C1960 VCCCCY1HH101JY J 100p Ceramic C1961 VCCCCY1HH101JY J 100p Ceramic MAIN UNIT (Continued) C2004 VCKYCY1HB102KY J 1000p 50V Ceramic C2005 VCKYCY1HB102KY J 1000p 50V Ceramic C1647 VCKYCY1CF334ZY J 0.33 Ceramic C2006 VCKYCY1EF104ZY J 0.1...
  • Page 70 LC-22SV2E Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKB522DE01 R355 VRS-CY1JF000JY 1/16W Metal Oxide R358 VRS-CY1JF123JY J 12k 1/16W Metal Oxide MAIN UNIT (Continued) R726 VRS-CY1JF1R0JY 1/16W Metal Oxide R751 VRS-CY1JF1R0JY 1/16W Metal Oxide C3502 VCKYTV1CF105ZY J 1...
  • Page 71 LC-22SV2E Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKB522DE01 R2041 VRS-CY1JF101JY J 100 1/16W Metal Oxide R2042 VRS-CY1JF101JY J 100 1/16W Metal Oxide MAIN UNIT (Continued) R2045 VRS-CY1JF562JY J 5.6k 1/16W Metal Oxide R2046 VRS-CY1JF472JY J 4.7k 1/16W Metal Oxide...
  • Page 72 LC-22SV2E Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKB522DE01 R3753 VRS-CA1JF272JY J 2.7k 1/16W Metal Oxide R3754 VRS-CB1JF272JY J 2.7k 1/16W Metal Oxide MAIN UNIT (Continued) R3755 VRS-CA1JF272JY J 2.7k 1/16W Metal Oxide R3756 VRS-CB1JF334JY...
  • Page 73 LC-22SV2E Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKB522DE01 DUNTKB523DE01 MAIN UNIT (Continued) R/C, LED UNIT INTEGRATED CIRCUITS FB3708 RBLN-0095CEZZY J Ferrite Bead J2201 QSOCD0456CEZZ J S-VIDEO(AV-IN2) IC101 VHiTPS819++-1Y J TPS819 J2202 QJAKF0060CEZZ J AUDIO(L/R)(AV-IN2)
  • Page 74 LC-22SV2E Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKB524DE01 DUNTKB525FE01 OPERATION UNIT (Continued) DIGITAL UNIT DIODES INTEGRATED CIRCUITS D130 RH-EX0879CEZZY J Zener Diode, 12V IC801 VHiVPC3230D1EQ J VPC3230D-QA-B3 D131 RH-EX0879CEZZY J Zener Diode, 12V IC4101 VHiM66611FP-1Q...
  • Page 75 LC-22SV2E Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKB525FE01 C827 VCKYCY1EF104ZY J 0.1 Ceramic C830 VCKYCY1CF224ZY J 0.22 Ceramic DIGITAL UNIT (Continued) C831 VCKYCY1CF224ZY J 0.22 Ceramic C832 VCKYCY1CF224ZY J 0.22 Ceramic FL4511 RFiLNA021WJZZY J Filter...
  • Page 76 LC-22SV2E Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKB525FE01 C4730 VCKYCY1EF104ZY J 0.1 Ceramic C4732 VCKYCY1EF104ZY J 0.1 Ceramic DIGITAL UNIT (Continued) C4733 VCEAPF1CN107MY J 100 Electrolytic C4735 VCKYCY1EF104ZY J 0.1 Ceramic C4583 VCKYCY1HB103KY J 0.01...
  • Page 77 LC-22SV2E Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKB525FE01 R4665 VRS-TV1JD222JY J 2.2k 1/16W Metal Oxide R4666 VRS-TW2ED821JY J 820 1/4W Metal Oxide DIGITAL UNIT (Continued) R4667 VRS-CY1JF000JY 1/16W Metal Oxide R4671 VRS-CB1JF330JY J 33...
  • Page 78 LC-22SV2E Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKB525FE01 R4842 VRS-CY1JF330JY J 33 1/16W Metal Oxide R4843 VRS-CY1JF330JY J 33 1/16W Metal Oxide DIGITAL UNIT (Continued) R4844 VRS-CY1JF330JY J 33 1/16W Metal Oxide R4845 VRS-CY1JF330JY...
  • Page 79 LC-22SV2E Ref. No. Part No. Description Code Ref. No. Part No. Description Code MISCELLANEOUS PARTS DUNTKB526FE01 F6551 QFS-D0006CEZZ J Fuse, T1.25AL/250V å INVERTER UNIT F6552 QFS-D0006CEZZ J Fuse, T1.25AL/250V å F6553 QFS-D0006CEZZ J Fuse, T1.25AL/250V å TRANSISTORS å F6554 QFS-D0006CEZZ J Fuse, T1.25AL/250V...
  • Page 80 LC-22SV2E CABINET AND MECHANICAL PARTS Operation Unit Digital Unit 1-12 1-11 Inverter Unit Main Unit 1-12 1-11 1-10 R/C, LED Unit 5-20 5-11 5-19 5-13 5-21 5-12 5-14 5-19 5-17 5-10 5-16 5-15 5-18 3-14 3-10 5-19 3-13 3-12 3-15...
  • Page 81 JBTN-2084CEKA J Power Button PSPAG0427CEUZ J Spacer, x4 RCORFA008WJZZ J Ferrite Core PSPAG0432CEUZ J Spacer, x1 TLABNA117WJZZ J Serial No. Label(LC-22SV2E) AE PSPAH0678CEZZ J Spacer, x2 TLABNA139WJZZ J Serial No. Label(LC-22SV2K) AC PSPAH0726CEUZ J Spacer, x2 LANGK0782CEFW J Fixing Metal...
  • Page 82 J Cable Clamp, x2 SPAKCA241WJZZ – Packing Case — QACCB0016TAZZ J AC Cord(LC-22SV2K) SPAKPA108WJZZ – Wrapping Paper — å QACCK0006TAZZ J AC Cord(LC-22SV2E) SPAKXA173WJZZ – Buffer Material — å RCORFA008WJZZ J Ferrite Core SSAKA1111CEZZ – Polyethylene Bag — RRMCGA101WJSA J Wireless Remote Control TLABK0001TAZZ –...

  • Page 83: Packing Of The Set

    (TiNS-A341WJZZ) Cable Clamp (2pcs.) (LHLDW0109CESA) Polyethylene Bag "AAA" size Dry Battery (2pcs.) (SSAKA1111CEZZ) AC Adapter (UADP-0241CEPZ) AC Cord (LC-22SV2K) (QACCB0016TAZZ) AC Cord (LC-22SV2E) (QACCK0006TAZZ) Buffer Material (Top) Remote Control (SPAKXA173WJZZ) (RRMCGA101WJSA) Wrapping Paper (SPAKPA108WJZZ) Buffer Material (Bottom) (SPAKXA173WJZZ) Buffer Material (Stand Side)
  • Page 84 LC-22SV2E COPYRIGHT © 2002 BY SHARP CORPORATION ALL RIGHTS RESERVED. 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.

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