Sharp LC-32DH57E-GY User manual

SERVICE MANUAL
LC-32DH57E-GY/RU-GY/S-GY
No. S79B1LC32DH57
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.
SAFETY PRECAUTION
IMPORTANT SERVICE SAFETY PRE-
CAUTION ............................................................i
Precautions for using lead-free solder ...............ii
OUTLINE AND MODIFIED PARTS LIST
OUTLINE........................................................... iii
MODIFIED PARTS LIST ................................... iii
Parts Guide
TopPage
CONTENTS
LCD COLOUR TELEVISION
LC-32DH57E-GY
LC-32DH57RU-GY
LC-32DH57S-GY
MODELS
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.
This Service Manual covers the differences from LC-32DH57E-BK/RU-BK/S-BK or other technical information, refer to
the (No. S59Z3LC32DH57 ) Service Manual.
OUTLINE
LC-32DH57E-BK/RU-BK/S-BK

i
LC19D1RU-BK Service Manual
SAFETY PRECAUTION
IMPORTANT SERVICE SAFETY PRECAUTION
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:
3. Inspect all lead dress to make certain that leads are not pinched,
and check that hardware is not lodged between the chassis and
other metal parts in the receiver.
4. Inspect all protective devices such as non-metallic control knobs,
insulation materials, cabinet backs, adjustment and compartment
covers or shields, isolation resistor-capacitor networks, mechanical
insulators, etc.
5. To be sure that no shock hazard exists, check for leakage current in
the following manner.
• Plug the AC cord directly into a 220~240 volt AC outlet.
• Using two clip leads, connect a 1.5k ohm, 10 watt resistor paral-
leled by a 0.15 F capacitor in series with all exposed metal cabinet
parts and a known earth ground, such as electrical conduit or elec-
trical ground connected to an earth ground.
• Use an AC voltmeter having with 5000 ohm per volt, or higher, sen-
sitivity or measure the AC voltage drop across the resistor.
• Connect the resistor connection to all exposed metal parts having a
return to the chassis (antenna, metal cabinet, screw heads, knobs
and control shafts, escutcheon, etc.) and measure the AC voltage
drop across the resistor.
All checks must be repeated with the AC cord plug connection
reversed. (If necessary, a nonpolarized adaptor plug must be used
only for the purpose of completing these checks.)
Any reading of 1.05 V peak (this corresponds to 0.7 mA peak AC.)
or more is excessive and indicates a potential shock hazard which
must be corrected before returning the monitor to the owner.
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
SAFETY NOTICE
Many electrical and mechanical parts in LCD color television have
special safety-related characteristics.
These characteristics are often not evident from visual inspection, nor
can protection afforded by them be necessarily increased by using
replacement components rated for higher voltage, wattage, etc.
Replacement parts which have these special safety characteristics are
identified in this manual; electrical components having such features
are identified by “ ” and shaded areas in the Replacement Parts
List and Schematic Diagrams.
For continued protection, replacement parts must be identical to those
used in the original circuit.
The use of a substitute replacement parts which do not have the same
safety characteristics as the factory recommended replacement parts
shown in this service manual, may create shock, fire or other hazards.
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and the
servicing guidelines which follow:
CAUTION:
FOR CONTINUED PROTECTION AGAINST A
RISK OF FIRE REPLACE ONLY WITH SAME
TYPE FUSE.
F7001, F7002 (3.15A/250V)
DVM
AC SCALE
1.5k ohm
10W
TO EXPOSED
METAL PARTS
CONNECT TO
KNOWN EARTH
GROUND
0.15 µ F
TEST PROBE
LC-32DH57E-GY/RU-GY/S-GY

ii
Precautions for using lead-free solder
Employing lead-free solder
• “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.
Example:
Using lead-free wire solder
• When fixing the PWB soldered with the lead-free solder, apply lead-free wire solder. Repairing with conventional lead wire solder may cause dam-
age or accident due to cracks.
As the melting point of lead-free solder (Sn-Ag-Cu) is higher than the lead wire solder by 40 C, we recommend you to use a dedicated soldering
bit, if you are not familiar with how to obtain lead-free wire solder or soldering bit, contact our service station or service branch in your area.
Soldering
• As the melting point of lead-free solder (Sn-Ag-Cu) is about 220 C which is higher than the conventional lead solder by 40 C, and as it has poor
solder wettability, you may be apt to keep the soldering bit in contact with the PWB for extended period of time. However, Since the land may be
peeled off or the maximum heat-resistance temperature of parts may be exceeded, remove the bit from the PWB as soon as you confirm the
steady soldering condition.
Lead-free solder contains more tin, and the end of the soldering bit may be easily corroded. Make sure to turn on and off the power of the bit as
required.
If a different type of solder stays on the tip of the soldering bit, it is alloyed with lead-free solder. Clean the bit after every use of it.
When the tip of the soldering bit is blackened during use, file it with steel wool or fine sandpaper.
• Be careful when replacing parts with polarity indication on the PWB silk.
Lead-free wire solder for servicing
LFa
Indicates lead-free solder of tin, silver and copper.
LF a/a
Indicates lead-free solder of tin, silver and copper.
Part No. Description Code
ZHNDAi123250E J 0.3mm 250g (1roll) BL
ZHNDAi126500E J 0.6mm 500g (1roll) BK
ZHNDAi12801KE J 1.0mm 1kg (1roll) BM
LC-32DH57E-GY/RU-GY/S-GY

iii
LC19D1RU-BK Service Manual
OUTLINE AND MODIFIED PARTS LIST
OUTLINE
MODIFIED PARTS LIST
Ref. No. Description
(Base Models)
LC-32DH57E-BK/RU-BK/S-BK
(These Models) Remarks
PRINTED WIRING BOARD ASSEMBLIES
N MAIN Unit DUNTKF111FM08 No Change
N LED Unit DUNTKF115FM02 No Change
N KEY Unit DUNTKF069FM05 No Change
N POWER Unit DUNTKF063FM01 No Change
N INVERTER Unit DUNTKF071FM04 No Change
N LCD CONTROL Unit RUNTKA561WJZZ No Change
LCD PANEL
N 32" LCD Panel Module R1LK315T3GW40Y No Change
CABINET PARTS
Refer to Parts List.
SUPPLIED ACCESSORIES
Refer to Parts List.
PACKING PARTS
Refer to Parts List.
Service Jigs
No Change
LC-32DH57E-GY/RU-GY/S-GY
N GND PWB Unit RUNTKA550WJZZ No Change
DUNTKF111FM08
DUNTKF115FM02
DUNTKF069FM05
DUNTKF063FM01
DUNTKF071FM04
RUNTKA561WJZZ
R1LK315T3GW40Y
RUNTKA550WJZZ
This Service Manual covers the differences from LC-32DH57E-BK/RU-BK/S-BK or other technical information, refer to
the (No. S59Z3LC32DH57 ) Service Manual.
LC-32DH57E-BK/RU-BK/S-BK
LC-32DH57E-GY/RU-GY/S-GY

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.
[1] PRINTED WIRING BOARD
ASSEMBLIES
[2] LCD PANEL
[3] CABINET AND MECHANICAL
[4] SUPPLIED ACCESSORIES
[5] PACKING PARTS
CONTENTS
LCD COLOUR TELEVISION
No. S79B1LC32DH57
LC-32DH57E-GY
LC-32DH57RU-GY
LC-32DH57S-GY
MODELS
LC-32DH57E-GY/RU-GY/S-GY
PARTS
[6] SERVICE JIGS

2
NO. PARTS CODE PRICE
RANK
NEW
MARK
PART
DELIVERY
DESCRIPTION
[1] PRINTED WIRING BOARD ASSEMBLIES
NDUNTKF111FM08 CB P MAIN Unit (B3KU2H57CG)
NDUNTKF115FM02 AH P LED Unit (B3KU2H57CJ)
NDUNTKF069FM05 AP P KEY Unit (B3KU2A47CK)
NDUNTKF063FM01 BH V POWER Unit
NDUNTKF071FM04 BF V INVERTER Unit
NRUNTKA561WJZZ N P LCD CONTROL Unit
NRUNTKA550WJZZ AR V GND PWB Unit
[2] LCD PANEL
NR1LK315T3GW40Y CQ P 32" LCD Panel Module
LC-32DH57E-GY/RU-GY/S-GY
BK

3
[3] CABINET AND MECHANICAL PARTS
1
22
25
26
2-1
2-2
2-4
2-2
2-2
2-2
4-1
4-2
4-3
33
7
34
2
32
1-4
27
32
34
35
5
1-1
29
28 1-3
1-2
10
10
9
8
4
35
21
24
35
15
34
34
3-2 3-1
6
35
17
12
18
19
20
35 11
35
16
30
31
23
3
31
36
LC-32DH57E-GY/RU-GY/S-GY
14
37
2-3
2-3

4
NO. PARTS CODE PRICE
RANK
NEW
MARK
PART
DELIVERY
DESCRIPTION
[3] CABINET AND MECHANICAL PARTS
1CCABAC243WJ08 N P Front Cabinet Ass'y
1-1 Not Available - N - Front Cabinet
1-2 Not Available - N - LED Cover
1-3 Not Available - N - Decoration
1-4 XEBS730P08000 AA J Screw
2CCABBB470WJ01 BA N P Rear Cabinet Ass'y
2-1 Not Available - N - Rear Cabinet
2-2 Not Available - - VESA Holder, x4
2-3 Not Available - N - Spacer (0.5x10x30), x6
2-4 XEBS730P08000 AA J Screw (for VESA), x4
3CANGKC130WJ01 AK P Terminal Angle Ass'y
3-1 Not Available - - Terminal Label
3-2 Not Available - - Terminal Angle
4CANGKC165WJ02 AS N P Stand Angle Ass'y
4-1 Not Available - N -
Support Angle
4-2 Not Available - N -
Bottom Angle
4-3 Not Available - N - Screw (4x55), x4
5JBTN-A812WJ1A AE N P Control Button
6LANGKC138WJFW AF N P AC Inlet Angle
7LHLDFA036WJKZ AB J Wire Holder, x4
8LHLDWA143WJKZ AC J Wire Holder
9LHLDWA175WJUZ AC J Wire Holder
10 LX-HZA003WJFN AC J Screw (for Speaker), x2
11 NSFTZA243WJFN AB J Shaft, x4
12 PSLDMB578WJFW AL N P Main PWB Shield
14 PSPAKA423WJKZ AA N P Spacer (0.3x3x8)
15 PSPANA032WJKZ AC J Spacer (for PWB)
16 QCNW-J026WJQZ AH J Connecting Cord (KM)
17 QCNW-J088WJQZ AK J Connecting Cord
18 QCNW-J206WJQZ AH N P Connecting Cord (LP)
19 QCNW-J207WJQZ AY N P Connecting Cord (LW)
20 QCNW-J208WJQZ AK N P Connecting Cord (LB)
21 QCNW-J211WJQZ AG N P Connecting Cord, x2
22 QCNW-J550WJPZ AH N P Connecting Cord (SP)
23 QEARPA339WJFW AC P Earth Plate
24 RCORFA064WJZZ AE P Core (for LCD FFC), x2
25 RSP-ZA391WJZZ AP J Speaker-L
26 RSP-ZA392WJZZ AP J Speaker-R
27 TLABNC117WJZZ AA P Model Label
28 TLABZB406WJZZ AC P ECO Label (for Europe)
29 TLABZC169WJZZ AF N P POP Label (for Europe)
29 TLABZC170WJZZ AF N P POP Label (for Russia)
30 XBBS730P04000 AA J Screw (for Tuner)
31 XBPS830P06000 AA J Screw (for HDMI), x3
32 XEBS730P08000 AA J Screw, x2
33 XEBS740P16000 AA P Screw (for Rear Cabinet), x9
34 XEBSN40P10000 AB N J Screw (for LCD Module), x6
35 XHPS730P06WS0 AA J Screw (for PWB Angle), x25
LC-32DH57E-GY/RU-GY/S-GY
36 PSPAKA425WJKZ P Spacer (for RS232C Terminal)
N
37 XHPS730P08WS0 AA J Screw (for Rear Cabinet), x3
AV
BD

5
[4] SUPPLIED ACCESSORIES
NO. PARTS CODE PRICE
RANK
NEW
MARK
PART
DELIVERY
DESCRIPTION
[4] SUPPLIED ACCESSORIES
X1 CDAi-A542WJ08 N P Stand Unit
X1-1 Not Available - N - Stand Base
X1-2 Not Available - N - Screw Ass'y
!
X2 QACCKA024WJPZ AP P AC Cord (except U.K. and Ireland)
!
X2 QACCBA073WJPZ AS P AC Cord (for U.K. and Ireland)
X3 RRMCGA779WJSA AQ N P Remote Control Unit
X4 TCAUSA034WJZZ AA P Caution Sheet (for East Europe)
X5 TCAUZA222WJN1 AB P Caution Card (for Europe)
X6 TGAN-A801WJZZ AB P Warranty Card (for U.K. and Ireland)
X7 TGAN-A077WJZZ AE J Warranty Card (for Russia)
X8 TGAN-B078WJZZ AB P Warranty Card (for East Europe)
X9 TGAN-B079WJZZ AB P Warranty Coupon (for East Europe)
X10 TGAN-A802WJZZ AB P AQUOS_Card Plan (for U.K. and Ireland)
X11 TiNS-E056WJZZ AG N P Operation Manual (for Europe except East Europe)
X12 TiNS-E059WJZZ AC N P Operation Manual (for Russia)
X13 TiNS-E057WJZZ AH N P Operation Manual (for Northern Europe)
X14 TiNS-E058WJZZ AK N P Operation Manual (for East Europe)
X15 Not Available - - "AA" Size Battery
X3 X2 X1
X1-1 X1-2
X11 X12 X13 X14 X15
LC-32DH57E-GY/RU-GY/S-GY
BC

6
[5] PACKING PARTS (NOT REPLACEMENT ITEM)
S8
S7
S2
S1
S7
S10
S7
S7
S3
S4
S6
S9
LC-32DH57E-GY/RU-GY/S-GY
S5

7
NO. PARTS CODE PRICE
RANK
NEW
MARK
PART
DELIVERY
DESCRIPTION
[5] PACKING PARTS (NOT REPLACEMENT ITEM)
S1 SPAKCE791WJZZ - N - Packing Case
S2 SPAKAA373WJZZ - - Cover Sheet
S3 SPAKFB838WJZZ - N - Mirror Mat Sup
S4 SPAKFB732WJZZ - N - Stand Case
S5 SPAKPA382WJZZ - - Wrapping Paper
S6 SPAKPB304WJZZ - - Mirror Mat Base
S7 SPAKXC379WJZZ - N - Packing Add.
S8 SSAKAA111WJZZ - - Polyethylene Bag
S9 SSAKHA049WJZZ - N - Polyethylene Bag (for Screw)
S10 TLABM5584BMZZ - - No. Label
[6] SERVICE JIGS
NQCNW-G616WJQZ BK J Connecting Cord Main - LCD Control (LW)
NQCNW-H347WJQZ AY J Connecting Cord Main - LCD Control (LP)
NQCNW-J413WJPZ AQ J Connecting Cord Main - Speaker (SP)
NQCNW-J415WJPZ AT J Connecting Cord Main - Key/LED (RA/KM)
NQCNW-J416WJQZ CE J Connecting Cord LCD - LCD Control
NQCNW-J835WJQZ AY J Connecting Cord Main - Power (PD/LB)
LC-32DH57E-GY/RU-GY/S-GY

COPYRIGHT © 2009 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.
SHARP CORPORATION
AV Systems Group
CS Promotion Center
Yaita,Tochigi 329-2193, Japan
July. 2009
YT
LC-32DH57E-GY/RU-GY/S-GY