Sharp LC-13B4E Service Manual

Lcd colour television

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Operation manual (46 pages)

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Page 1: Table Of Contents
LC-13B4E 1st Edition LC-15B4E SERVICE MANUAL S53A6LC-13B4E LCD COLOUR TELEVISION LC-13B4E LC-15B4E MODELS 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: Description Of Schematic Diagram
LC-13B4E LC-15B4E 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 3: Important Service Safety Precaution
LC-13B4E LC-15B4E IMPORTANT SERVICE SAFETY PRECAUTION Ë Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and the servicing guidelines which follow: • Use an AC voltmeter having with 5000 ohm per volt, or...
Page 4 LC-13B4E LC-15B4E Precautions for using lead-free solder 1 Employing lead-free solder "All PWBs" 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 5: Block Diagram
LC-13B4E LC-15B4E BLOCK DIAGRAM L/R_IN ANA_IN1+ AUDIO ACTIVE FILTER AUDIO TUNER SIF1 ANTENNA P3301 IC1905 AI_L/R DACM_L/R FLSP/FRSP SPEAKER SC2_IN_L/R POWER AMP P3302 IC3301 IC1901 SCART SC1_OUT_L/R DACA_L/R AUDIO AMP SC3901 AUDIO AMP (AV1) IC1902 SC1_IN_L/R IC304 HL/R SC_L/RO HEADPHONE...
Page 6: Adjusting Procedure Of Each Section
LC-13B4E LC-15B4E 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 7 LC-13B4E LC-15B4E 4. Initialization When the microprocessor (IC2001) or the EEPROM (IC2008, IC2010) has been replaced or when the EEPROM has been initialized, readjust the each adjustments. 4-1. Connect the pins (81) and (82) of IC2001 (microprocessor) to GND, and turn on the power.
Page 8 LC-13B4E LC-15B4E 5. Adjustment 5-1. +B adjustment...Page 1 +B-ADJ Adjust the voltage of the pin (4) of P1902 to 5.00 ±0.02V with R3714. Note: Since 5.0V is a reference voltage of all power voltage, adjust it precisely. 5-2. Counter-bias adjustment Vary the "COM BIAS"...
Page 9 CONTROL MODE UART UPDATE MODE NORMAL Reset 0 TEXT RESET V E R R O M 1 . 1 0 A Afterwards, perform the operation check to confirm that the lamp error detection does not function. Note: 3 LC-13B4E=13, LC-15B4E=15...
Page 10: Trouble Shooting Table
LC-13B4E LC-15B4E TROUBLE SHOOTING TABLE...
Page 11 LC-13B4E LC-15B4E TROUBLE SHOOTING TABLE (Continued)
Page 12 LC-13B4E LC-15B4E TROUBLE SHOOTING TABLE (Continued)
Page 13 LC-13B4E LC-15B4E TROUBLE SHOOTING TABLE (Continued)
Page 14 LC-13B4E LC-15B4E TROUBLE SHOOTING TABLE (Continued)
Page 15 LC-13B4E LC-15B4E...
Page 16: Overall Wiring Diagram
LC-13B4E LC-15B4E OVERALL WIRING DIAGRAM...
Page 17: Schematic Diagram
LC-13B4E LC-15B4E SCHEMATIC DIAGRAM Ë R/C, LED and OPERATION Unit...
Page 18 LC-13B4E LC-15B4E Ë MAIN Unit-1/7...
Page 19 LC-13B4E LC-15B4E Ë MAIN Unit-2/7...
Page 20 LC-13B4E LC-15B4E Ë MAIN Unit-3/7...
Page 21 LC-13B4E LC-15B4E Ë MAIN Unit-4/7...
Page 22 LC-13B4E LC-15B4E Ë MAIN Unit-5/7...
Page 23 LC-13B4E LC-15B4E Ë MAIN Unit-6/7...
Page 24 LC-13B4E LC-15B4E Ë MAIN Unit-7/7...
Page 25 LC-13B4E LC-15B4E Ë TUNER Unit-1/4...
Page 26 LC-13B4E LC-15B4E Ë TUNER Unit-2/4...
Page 27 LC-13B4E LC-15B4E Ë TUNER Unit-3/4 (LC-13B4E)
Page 28 LC-13B4E LC-15B4E Ë TUNER Unit-3/4 (LC-15B4E)
Page 29 LC-13B4E LC-15B4E Ë TUNER Unit-4/4...
Page 30: Inverter Unit
LC-13B4E LC-15B4E Ë INVERTER Unit...
Page 31: Chassis Layout
LC-13B4E LC-15B4E CHASSIS LAYOUT OPERATION Unit INVERTER Unit MAIN Unit TUNER Unit R/C, LED Unit...
Page 32: Parts List
LC-13B4E LC-15B4E Ref. No. Part No. Description Code Ref. No. Part No. Description Code PARTS LIST DUNTKB750FE01:LC-13B4E DUNTKB750FE02:LC-15B4E PARTS REPLACEMENT MAIN UNIT INTEGRATED CIRCUITS Replacement parts which have these special safety characteristics IC701 VSUMX2N++++-1Y J UMX2N identified in this manual; electrical components having such features...
Page 33 LC-13B4E LC-15B4E Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKB750FE01:LC-13B4E C727 VCKYTV1CB105KY J 1 Ceramic DUNTKB750FE02:LC-15B4E C728 VCKYCY1HF103ZY J 0.01 Ceramic C801 RC-KZA041WJZZY J 10 Ceramic MAIN UNIT (Continued) C802 RC-KZA041WJZZY J 10 Ceramic DIODES C803 VCKYCY1EF104ZY J 0.1...
Page 34 LC-13B4E LC-15B4E Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKB750FE01:LC-13B4E C1629 VCKYCY1EF104ZY J 0.1 Ceramic DUNTKB750FE02:LC-15B4E C1630 VCKYCY1EF104ZY J 0.1 Ceramic C1631 VCKYCY1EF104ZY J 0.1 Ceramic MAIN UNIT (Continued) C1632 VCKYCY1EF104ZY J 0.1 Ceramic C1117 VCKYTV1CB105KY J 1...
Page 35 LC-13B4E LC-15B4E Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKB750FE01:LC-13B4E R1259 VRS-CY1JF182JY J 1.8k 1/16W Metal Oxide DUNTKB750FE02:LC-15B4E R1260 VRS-CY1JF000JY 1/16W Metal Oxide R1262 VRS-CY1JF101JY J 100 1/16W Metal Oxide MAIN UNIT (Continued) R1601 VRS-TX2HF2R2JY J 2.2...
Page 36 LC-13B4E LC-15B4E Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKB750FE01:LC-13B4E DUNTKB751FE01:LC-13B4E DUNTKB750FE02:LC-15B4E DUNTKB751FE02:LC-15B4E MAIN UNIT (Continued) TUNER UNIT TUNER R2050 VRS-CY1JF102JY J 1k 1/16W Metal Oxide R2051 VRS-CY1JF223JY J 22k 1/16W Metal Oxide NOTE: THE PARTS HERE SHOWN ARE SUPPLIED AS AN R2052 VRS-CY1JF512JY J 5.1k 1/16W Metal Oxide...
Page 37 LC-13B4E LC-15B4E Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKB751FE01:LC-13B4E C1924 VCKYCY1HB102KY J 1000p 50V Ceramic DUNTKB751FE02:LC-15B4E C1925 RC-EZ0417CEZZY J 150 Electrolytic C1926 VCKYCY1EF104ZY J 0.1 Ceramic TUNER UNIT (Continued) C1927 VCKYCY1HB682KY J 6800p 50V...
Page 38 LC-13B4E LC-15B4E Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKB751FE01:LC-13B4E R361 VRS-CY1JF562JY J 5.6k 1/16W Metal Oxide DUNTKB751FE02:LC-15B4E R362 VRS-CY1JF102JY J 1k 1/16W Metal Oxide R1901 VRS-CA1JF102JY J 1k 1/16W Metal Oxide TUNER UNIT R1902 VRS-CY1JF472JY J 4.7k 1/16W Metal Oxide...
Page 39 LC-13B4E LC-15B4E Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKB751FE01:LC-13B4E R3750 VRS-CY1JF391JY J 390 1/16W Metal Oxide DUNTKB751FE02:LC-15B4E R3751 VRS-CY1JF273FY J 27k 1/16W Metal Oxide R3752 VRS-CY1JF273FY J 27k 1/16W Metal Oxide TUNER UNIT R3753 VRS-CY1JF103FY...
Page 40: Operation Unit
LC-13B4E LC-15B4E Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKB751FE01:LC-13B4E DUNTKB752FE01:LC-13B4E DUNTKB751FE02:LC-15B4E DUNTKB752FE02:LC-15B4E TUNER UNIT R/C, LED UNIT TRANSISTORS J5002 QJAKJ0047CEZZ J Headphone J5003 QJAKEA047WJ04 J VIDEO(AV-IN2) Q4001 VSDTC144EE/-1Y J DTC144EE P1902 QPLGN1278GEZZ J Plug, 12-pin(MB)
Page 41 LC-13B4E LC-15B4E Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKB754FE01:LC-13B4E DUNTKB754FE02:LC-15B4E INVERTER UNIT TRANSISTORS Q6500 VS2SC5886++-1Y J 2SC5886 Q6501 VS2SC5886++-1Y J 2SC5886 Q6502 VS2SA1530AR-1Y J 2SA1530AR Q6503 VS2SC5886++-1Y J 2SC5886 Q6504 VS2SC5886++-1Y J 2SC5886 Q6505 VS2SA1530AR-1Y...
Page 42 J Screw, x4 1-11 RSP-Z0131CEZZ J Speaker(L) XEBSF30P14000 J Screw, x8 1-12 RSP-Z0132CEZZ J Speaker(R) TLABS0106TAZZ J GOST Label (LC-13B4E(R)) AD 1-13 XETSD40P12000 J Screw, x8 PSPAGA024WJZZ J Spacer, x2 CCABBA209WJ01 J Cabinet B Ass’y Not Available – Cabinet B —...
Page 43 LC-13B4E LC-15B4E CABINET AND MECHANICAL PARTS MAIN PWB INVERTER PWB OPERATION PWB 1-13 LC-15B4E 1-13 1-11 1-11 TUNER PWB LC-13B4E 1-13 1-12 LC-15B4E 1-13 5-12 1-12 LC-13B4E 5-10 1-10 5-17 R/C, LED PWB 5-11 5-13 5-14 5-15 5-16 3-13 3-2-1...
Page 44 Not Available – Cabinet A — QCNW-B322WJZZ J Connecting Cord(MR) GCOVA2020CEZZ J R/C, LED Cover QCNW-B543WJZZ J Connecting Cord(MS) HBDGBA012WJSA J ”SHARP” Badge QCNW-A385WJZZ J Connecting Cord(VE) PSPAG0406CEZZ J Spacer, x2 XBBSF30P05000 J Screw, x2 PSPAG0406CEZZ J Spacer, x2 XBBSF30P08000...
Page 45: Packing Parts
ACCESSORIES (NOT REPLACEMENT ITEM) LC-13B4E LC-13B4E LHLDWA002WJSA J Cable Clamp, x2 SPAKCA658WJZZ – Packing Case — QACCBA016WJPZ J AC Cord(LC-13B4E(K)) SPAKFA331WJZZ – Buffer Material(Accessories) — å QACCKA006WJPZ J AC Cord(LC13B4E/E(R)) SPAKPA211WJZZ – Wrapping Paper — å RRMCGA074WJSA J Infrared R/C Unit SPAKXA300WJZZ –...
Page 46: Removing Of Major Parts
Cabinet B Terminal cover (S) Stand OPERATION PWB P4004 P2001 P6501 SC1203 SC1202 P6500 INVERTER PWB P6502 MAIN PWB SC2002 SC1204 P701 SC3902 Tape P1902 TUNER PWB P3302 P3301 P3902 Only for LC-13B4E Only for LC-13B4E P3603 P3601 LED PWB...
Page 47 15. Remove the chassis frame fixing screws (2 pcs.). 16. Remove the LCD panel unit fixing screws (2 pcs.). INVERTER PWB MAIN PWB TUNER PWB Chassis frame Chassis frame cover OPERATION PWB LCD Panel unit Only for LC-13B4E Only for LC-13B4E R/C, LED PWB...
Page 48 19. Detach the four reflection mirrors. 20. Remove the lamp unit. 21. Detach the lamp guide plate. 22. Detach the two lamp reflection sheets. Reflection Mirror Back Shield Light Guide Plate (PSLDM4684CEFW): LC-13B4E (PGiDM0069CEZZ): LC-13B4E (PSLDM4689CEFW): LC-15B4E (PGiDM0070CEZZ): LC-15B4E Lamp Unit (KLMP-0120CEZZ): LC-13B4E (KLMP-0122CEZZ): LC-15B4E...
Page 49 OPERATION PWB Tape INVERTER PWB MAIN PWB SC2002 P701 SC3902 P1902 TUNER PWB Only for LC-13B4E Only for LC-13B4E R/C, LED PWB Step Part No. Description QCNW-A369WJZZ Extension Cable 50-pin Main (SC2002)-Tuner (SC3902) QCNW-B194WJZZ Extension Cable 12-pin Main (P701)-Tuner (P1902)
Page 50: Packing Of The Set
LC-13B4E LC-15B4E PACKING OF THE SET...
Page 51 LC-13B4E LC-15B4E COPYRIGHT © 2003 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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Sharp LC-13B4E Service Manual

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