Sharp LC-37D42U User manual

SERVICE MANUAL
No. S47G2LC37D42U
Parts marked with " " are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the
safety and performance of the set.
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
TopPage
LC-37D42U/LC-37D43U/LC-C3742U
In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its orig-
inal condition and only parts identical to those specified should be used.
In this Service Manual, only parts in the LCD module are shown. For the other points, refer to the LC-37D42U/LC-
37D43U/LC-C3742U (S06X9LC32D42U/SX6Y9LC37D43U/SX6Y7LCC3742U) Service Manual.
OUTLINE
LCD COLOR TELEVISION
LC-37D42U
LC-37D43U
LC-C3742U
MODELS
SUPPLEMENT

LC-37D42U/LC-37D43U/LC-C3742U
i
LC-37D42U Service Manual
OUTLINE AND ADJUSTMENT
[1] Outline
In this Service Manual, only parts in the LCD module are shown. For the other points, refer to the LC-37D42U/LC-37D43U/LC-C3742U
(S06X9LC32D42U/SX6Y9LC37D43U/SX6Y7LCC3742U) Service Manual.
[2] Adjustment
When replacing the LCD control PCB, follow these steps to adjust VCOM.
1) Remove the wire from the LCD control PCB CN3.
2) Connect a wire of the VCOM adjustment jig (electronic volume adjustment BOX) to CN3 (see Fig. 1).
3) Turn on the TV set.
4) Turn on the jig (connect to the AC).
5) Enter the process mode to display the item “LCD TEST PATTERN OFF” (see Fig. 2).
6) Press the volume up key once to display a flicker pattern.
7) Press the jig's UP/DOWN switch while looking at the screen to adjust the point so that the flicker is minimized (see Fig. 3).
8) After completing adjustment, press the WRITE switch and make sure the lamp of the WRITE button goes out. (Writing is complete when the lamp
goes out.)
9) Turn off the jig (turn the AC off).
10)Turn off the TV set.
11)Remove the jig’s wire connected to CN3.
12)Reconnect the wire of the set to CN3.
Fig. 1 Jig connecting location
Fig. 2 Test pattern selection screen
Fig. 3 VCOM adjustment jig (RUNTZA059WJZZ)
Jig connection

PARTS GUIDE
Parts marked with " " are important for maintaining the safety of the set. Be sure to replace these
parts with specified ones for maintaining the safety and performance of the set.
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
LC-37D42U/LC-37D43U/LC-C3742U
PartsGuide
[1] LCD MODULE Assembly
CONTENTS
LCD COLOR TELEVISION
LC-37D42U
LC-37D43U
LC-C3742U
MODELS

LC-37D42U/LC-37D43U/LC-C3742U
2
[1] LCD MODULE Assembly
1
9
18
13
11
16
17
10
19
21
30
20
25
23
31
22
30
30
30
29
27
27
27
27
28
3
2
4
5
78
4
26
6
24
12
15
14
14

LC-37D42U/LC-37D43U/LC-C3742U
3
NO. PARTS CODE PRICE
RANK
NEW
MARK
PART
DELIVERY
DESCRIPTION
[1] LCD MODULE Assembly
1R1LK370T3LZ5BW EZ N J LCD Module Ass'y
2CANGTA274WJ01 AX N J Vessel (Top)
3CANGTA277WJ01 AW N J Vessel (Bottom)
4CANGTA275WJ01 AN N J Vessel (L, R), x2
5CHLDZA701WJ01 BD N J Panel Holder Ass'y
6CHLDZA711WJ01 AD N J Spacer Ass'y, x2
7PSLDK2674TPNZ N J Reflection Sheet, x2
8PSLDK2677TPNZ N J Diffusion Panel
9CHLDZA704WJ01 N J Lamp Holder-L
10 CHLDZA703WJ01 N J Lamp Holder-R
11 CLMPCA003WJ01 N J Lamp Unit, x9
12 LHLDZA707WJKZ AF N J Lamp Holder (Bottom), x2
13 LHLDZA709WJKZ AC N J Sheet Holder, x6
14 LHLDZA713WJKZ AC N J Sheet Clip, x6
15 LHLDZA702WJKZ AC N J Lamp clip, x6
16 PREFL2378TPNZ N J Reflection Mirror
17 CCHSMA280WJ01 N J Chassis
18 PZETKA174WJKZ AL N J Insulation Sheet
19 RUNTKA216WJZZ BM N J INVERTER Unit A
20 RUNTKA217WJZZ BG N J INVERTER Unit B
21 PSLDMA892WJFW N J Shield Plate (for Inverter)
22 CPWBX3508TPZQ BR N J LCD CONTROL Unit
23 PSLDMA893WJFW AK N J Shield Plate (for LCD CONTROL Unit)
24 PSPAZB030WJKZ AB N J Spacer, x6
25 QPWBMD670WJNZ N J CS-FPC1, x2
26 LX-LZA101WJZZ AC N J Clip, x4
27 LX-BZ2102TPZZ N J Screw, x8
28 XEPS930P10000 AA J Screw, x10
29 XBPSN30P14000 AA J Screw, x12
30 XBPS730P06WS0 AA J Screw, x12
31 XBPS730P06000 AA J Screw, x4

LC-37D42U/LC-37D43U/LC-C3742U
COPYRIGHT © 2007 BY SHARP CORPORATION
ALL RIGHTS RESERVED.
No Part of this publication may be reproduced,
stored in a retrieval system, or transmitted in
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photocopying, recording, or otherwise, without
prior written permission of the publisher.
SHARP CORPORATION
AV Systems Group
CS Promotion Center
Yaita,Tochigi 329-2193, Japan
TQ2186-S YT. DS