SERVICE MANUAL LC-37D42U LC-37D43U LC

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LC-37D42U/LC-37D43U/LC-C3742U
SERVICE MANUAL
No. S47G3LC37D42U
SUPPLEMENT
LCD COLOR TELEVISION
MODELS
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 original condition and only parts identical to those specified should be used.
OUTLINE
In this Service Manual, only parts in the LCD module are shown. For the other points, refer to the LC-37D42U/LC37D43U/LC-C3742U (S06X9LC32D42U/SX6Y9LC37D43U/SX6Y7LCC3742U) Service Manual.
New panel modules are incorporated in LC-37D42U/LC-37D43U/LC-C3742U with the Serial No. "****51112~".
How to distinguish the model labels of new and old panel modules.
As to the new panel module, the mark A is printed on the model label.
Old panel module
New panel module
No A mark on the right side of the model name
Example
A mark on the right side of the model name
Example
No Mark
A
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
LC-37D42U (A)
OUTLINE AND ADJUSTMENT
Service Manual
[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.
New panel modules are incorporated in LC-37D42U/LC-37D43U/LC-C3742U with the Serial No. "****51112~".
How to distinguish the model labels of new and old panel modules.
As to the new panel module, the mark A is printed on the model label.
Old panel module
New panel module
No A mark on the right side of the model name
A mark on the right side of the model name
Example
Example
No Mark
A
[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.
Jig connection
Fig. 1 Jig connecting location
Fig. 2 Test pattern selection screen
i
Fig. 3 VCOM adjustment jig (RUNTZA059WJZZ)
LC-37D42U/LC-37D43U/LC-C3742U
PartsGuide
PARTS GUIDE
LCD COLOR TELEVISION
MODELS
LC-37D42U
LC-37D43U
LC-C3742U
CONTENTS
[1]
LCD MODULE Assembly
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
[1] LCD MODULE Assembly
31
1
25
30
24
30
23
22
21
20
9
15
14
16
17
11
19
18
12
30
16
13
15
7
8
26
30
10
4
27
2
6
28
27
5
27
4
3
27
29
2
LC-37D42U/LC-37D43U/LC-C3742U
NO.
PARTS CODE
PRICE NEW PART
RANK MARK DELIVERY
DESCRIPTION
[1] LCD MODULE Assembly
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
30
31
R1LK370T3LZ6CZ
CANGTA274WJ01
CANGTA277WJ01
CANGTA275WJ01
CHLDZA701WJ01
CHLDZA711WJ01
PSLDK2674TPGZ
PSLDK2677TPGZ
CHLDZ3412TP01
CHLDZ3413TP01
CLMPCA003WJ02
LHLDZ3414TPZZ
LHLDZ3415TPZZ
LHLDZA709WJKZ
LHLDZ3410TPZZ
LHLDZ3411TPZZ
LHLDZ3614TPZZ
PREFL2390TPZZ
CANGK3715TP01
PZETE3991TPZZ
RDENC2300TPZA
LANGK3716TPZZ
CPWBX3547TPZB
PSLDMA893WJFW
QPWBMD670WJGZ
LX-LZA101WJZZ
LX-BZ2102TPZZ
XEPS930P10000
XBPSN30P14000
XBPS730P06WS0
XBPS730P06000
EZ
AX
AW
AN
BD
AD
N
N
N
N
N
N
N
N
N
N
N
N
N
AC
BR
AK
AC
AB
AA
AA
AA
AA
N
N
N
N
N
N
N
N
N
N
N
N
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
LCD Module Ass'y
Vessel (Top)
Vessel (Bottom)
Vessel (L, R), x2
Panel Holder Ass'y
Spacer Ass'y, x2
Reflection Sheet, x2
Diffusion Panel
Lamp Holder-L
Lamp Holder-R
Lamp Unit, x8
Lamp Holder (Bottom-A)
Lamp Holder (Bottom-B)
Sheet Holder, x6
Lamp clip A, x2
Lamp clip B, x2
Lamp clip C, x2
Reflection Mirror
Chassis
Insulation Sheet
INVERTER Unit
Shield Plate (for Inverter)
LCD CONTROL Unit
Shield Plate (for LCD CONTROL Unit)
CS-FPC1, x2
Clip, x4
Screw, x8
Screw, x10
Screw, x12
Screw, x12
Screw, x4
3
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
any from or by any means, electronic, mechanical,
photocopying, recording, or otherwise, without
prior written permission of the publisher.
TQ2187-S YT. DS
SHARP CORPORATION
AV Systems Group
CS Promotion Center
Yaita,Tochigi 329-2193, Japan