SHARP LC-32PX5M-X, LC-37PX5M-X Service Manual

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LC-32PX5M/X/LC-37PX5M/X

SERVICE MANUAL

No. S17B1LC37PX5M

LCD COLOR TELEVISION

LC-32PX5M/X

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 be used.

LC-37PX5M/X

OUTLINE

This model is based on the LC-32BX5H/M, LC-37BX5H/M and partially modified.
For the contents not covered in this Service Manual, accordingly, please refer to the LC-32BX5H/M,
LC-37BX5H/M (S56T7LC32BX5M) Service Manual.

CONTENTS

DIFFERENCES FROM BASE MODEL

LIST OF CHANGED PARTS ............................. i

SAFETY PRECAUTION

IMPORTANT SERVICE SAFETY PRE-

CAUTION ......................................................... v

Precautions for using lead-free solder............. vi

CHAPTER 1. SPECIFICATIONS

[1] SPECIFICATIONS.........................................1-1

CHAPTER 2. OPERATION MANUAL

[1] OPERATION MANUAL.................................. 2-1

CHAPTER 3. DIMENSIONS

[1] DIMENSIONS................................................ 3-1

CHAPTER 4. REMOVING OF MAJOR PARTS

[1] REMOVING OF MAJOR PARTS................... 4-1

CHAPTER 5. BLOCK DIAGRAM/OVERALL WIRING
DIAGRAM

[1] BLOCK DIAGRAM..........................................5-1

[2] OVERALL WIRING DIAGRAM (LC-

32PX5M/X) .....................................................5-3

[3] OVERALL WIRING DIAGRAM (LC-

37PX5M/X) .....................................................5-5

CHAPTER 6. SCHEMATIC DIAGRAM

[1] DESCRIPTION OF SCHEMATIC DIA-

GRAM .............................................................6-1

[2] SCHEMATIC DIAGRAM .................................6-2

CHAPTER 7. PRINTED WIRING BOARD

[1] OPERATION UNIT PRINTED WIRING

BOARD ...........................................................7-1

[2] LED, R/C UNIT PRINTED WIRING

BOARD ...........................................................7-2

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-32PX5M/X/LC-37PX5M/X

LC-37PX5M

DIFFERENCES FROM BASE MODEL

Service Manual

LIST OF CHANGED PARTS

LC-32PX5M / LC-32PX5X

Ref. No. Description LC-32BX5M LC-32PX5M LC-32PX5X Note

PRINTED WIRING BOARD ASSEMBLIES (NOT REPLACE ITEM)

OPERATION Unit DUNTKD685FM03 DUNTKE097FM02 DUNTKE097FM02 Changes
MAIN Unit DUNTKD892FM03 DUNTKD892FM50 DUNTKD892FM51 Changes
SUB Unit DUNTKD893FM03 DUNTKD893FM50 DUNTKD893FM51 Changes
LED, R/C Unit DUNTKD897FM03 DUNTKE095FM02 DUNTKE095FM02 Changes
VIDEO-IN3 Unit DUNTKD898FM03 - - Delete
POWER Unit exchange RDENCA182WJQZ RDENCA182WJQZ RDENCA182WJQZ No Changes

LED, R/C UNIT (DUNTKD095FM02)

J101 Jack QJAKJA014WJZZ - - Delete
R111 Resistor 22 1/4W Metal Oxide VRS-TW2ED220JY - - Delete
R112 Resistor 100k 1/16W Metal Oxide VRS-CY1JF104JY - - Delete
R113 Resistor 22 1/4W Metal Oxide VRS-TW2ED220JY - - Delete
R114 Resistor 100k 1/16W Metal Oxide VRS-CY1JF104JY - - Delete

R115 Resistor 1k 1/16W Metal Oxide VRS-CY1JF102JY - - Delete
SUB UNIT (DUNTKD893FM50 / DUNTKD893FM51)
C1319 Capacitor 220 6.3V Electrolytic VCEASX0JN227MY - - Delete
C1320 Capacitor 10 16V Ceramic RC-KZA510WJPZY - - Delete
C1321 Capacitor 0.1 25V Ceramic VCKYCY1EF104ZY - - Delete
C1322 Capacitor 220 6.3V Electrolytic VCEASX0JN227MY - - Delete
C1326 Capacitor 1000p 50V Ceramic VCKYCY1HB102KY - - Delete
C1327 Capacitor 1000p 50V Ceramic VCKYCY1HB102KY - - Delete
C1328 Capacitor 1 10V Ceramic VCKYCY1AB105KY - - Delete
C1329 Capacitor 33 10V Electrolytic VCEASX1AN336MY - - Delete
C1330 Capacitor 0.1 25V Ceramic VCKYCY1EF104ZY - - Delete
C1337 Capacitor 1 10V Ceramic VCKYCY1AB105KY - - Delete
C1901 Capacitor 1 10V Ceramic VCKYCY1AB105KY - - Delete
C1902 Capacitor 1 10V Ceramic VCKYCY1AB105KY - - Delete
C3447 Capacitor 1 10V Ceramic VCKYCY1AB105KY - - Delete
C3448 Capacitor 1 10V Ceramic VCKYCY1AB105KY - - Delete
C3449 Capacitor 0.1 16V Ceramic VCKYCY1CB104KY - - Delete
C5002 Capacitor 0.01 50V Ceramic VCKYCY1HB103KY - - Delete
C5003 Capacitor 4700p 50V Ceramic VCKYCY1HB472KY - - Delete
C5004 Capacitor 4700p 50V Ceramic VCKYCY1HB472KY - - Delete
D1901 Diode DA221TL VHDDA221///-1Y - - Delete
FB5001 Ferrite Bead BLN-0051TA RBLN-0051TAZZY - - Delete
FB5002 Ferrite Bead BLN-0051TA RBLN-0051TAZZY - - Delete
FL5001 Filter RFILN0017TAZZY - - Delete
FL5002 Filter RFILN0017TAZZY - - Delete
FL5003 Filter RFILN0017TAZZY - - Delete
IC1302 IC BH3544F-E2 VHIBH3544F+-1Y - - Delete
IC1901 IC TC4W66F (TE12L,F) VHITC4W66F/-1Y - - Delete
IC1902 IC TC4W66F (TE12L,F) VHITC4W66F/-1Y - - Delete
IC2001 IC M30626FHPFPU5C RH-IXA648WJN2Q RH-IXA650WJN1Q RH-IXA650WJN1Q Changes
L1303 Coil Peaking 100uH VPCNN101J7R7NY - - Delete
P5009 Plug 14pin (VD) QPLGNA334WJZZY - - Delete
Q1302 Transistor PDTC144EE VSRDTC144EE-1Y - - Delete
Q1901 Transistor 2SC3928A VS2SC3928AR-1Y - - Delete
Q1902 Transistor UM6K1N TN VSUM6K1NTN+-1Y - - Delete
Q1903 Transistor QS6K1 VSQS6K1++++-1Y - - Delete
Q1904 Transistor PDTA144EK VSRDTA144EK-1Y - - Delete
Q2002 Transistor PDTC144EE VSRDTC144EE-1Y - - Delete
R1309 Resistor 18 1/4W Metal Oxide VRS-TW2ED180JY - - Delete
R1310 Resistor 18 1/4W Metal Oxide VRS-TW2ED180JY - - Delete
R1312 Resistor 100k 1/16W Metal Oxide VRS-CY1JF104JY - - Delete
R1313 Resistor 470 1/16W Metal Oxide VRS-CY1JF471JY - - Delete
R1314 Resistor 470 1/16W Metal Oxide VRS-CY1JF471JY - - Delete
R1901 Resistor 1k 1/16W Metal Oxide VRS-TV1JD102JY - - Delete
R1902 Resistor 1k 1/16W Metal Oxide VRS-TV1JD102JY - - Delete

i

LC-32PX5M/X/LC-37PX5M/X

Ref. No. Description LC-32BX5M LC-32PX5M LC-32PX5X Note

R1903 Resistor 4.7k 1/16W Metal Oxide VRS-CY1JF472JY - - Delete
R1904 Resistor 150k 1/16W Metal Oxide VRS-CY1JF154JY - - Delete
R1907 Resistor 1M 1/16W Metal Oxide VRS-CY1JF105JY - - Delete
R1908 Resistor 1M 1/16W Metal Oxide VRS-CY1JF105JY - - Delete
R1909 Resistor 1M 1/16W Metal Oxide VRS-CY1JF105JY - - Delete
R1910 Resistor 1M 1/16W Metal Oxide VRS-CY1JF105JY - - Delete
R1911 Resistor 150k 1/16W Metal Oxide VRS-CY1JF154JY - - Delete
R1912 Resistor 0 1/16W Metal Oxide - VRS-CJ1JF000JY VRS-CJ1JF000JY Add
R2002 Resistor 1k 1/16W Metal Oxide VRS-CY1JF102JY - - Delete
R2003 Resistor 22k 1/16W Metal Oxide VRS-CY1JF223JY - - Delete
R2005 Resistor 22k 1/16W Metal Oxide VRS-CY1JF223JY - - Delete
R2008 Resistor 100k 1/16W Metal Oxide VRS-CY1JF104JY - - Delete
R2034 Resistor 15k 1/16W Metal Oxide VRS-CY1JF153JY - - Delete
R2051 Resistor 100 1/16W Metal Oxide VRS-CY1JF101JY VRS-CY1JF102JY VRS-CY1JF102JY Changes
R2075 Resistor 100 1/16W Metal Oxide VRS-CY1JF101JY - - Delete
R3465 Resistor 100 1/16W Metal Oxide VRS-CY1JF101JY - - Delete
R3466 Resistor 100 1/16W Metal Oxide VRS-CY1JF101JY - - Delete
R5008 Resistor 1k 1/16W Metal Oxide VRS-CY1JF102FY - - Delete
R5011 Resistor 47k 1/16W Metal Oxide VRS-CY1JF473JY - - Delete
R5014 Resistor 0 1/16W Metal Oxide VRS-CY1JF000JY - - Delete
OPERATION Unit (DUNTKE097FM02)
All parts are changed.

In trouble shooting table, “No audio heard (4)” and “No external video screen <INPUT3>” are abolished.

Refer to the PARTS GUIDE for CABINET PARTS, SUPPLIED ACCESORIES, PACKING PARTS and SERVICE JIGS.

ii

LC-32PX5M/X/LC-37PX5M/X

LC-37PX5M / LC-37PX5X

Ref. No. Description LC-37BX5M LC-37PX5M LC-37PX5X Note

PRINTED WIRING BOARD ASSEMBLIES (NOT REPLACE ITEM)

OPERATION Unit DUNTKD685FM13 DUNTKE097FM04 DUNTKE097FM04 Changes
MAIN Unit DUNTKD892FM13 DUNTKD892FM52 DUNTKD892FM53 Changes
SUB Unit DUNTKD893FM13 DUNTKD893FM52 DUNTKD893FM53 Changes
LED, R/C Unit DUNTKD897FM13 DUNTKD897FM53 DUNTKD897FM53 Changes
VIDEO-IN3 Unit DUNTKD898FM13 - - Delete

POWER Unit exchange RDENCA182WJQZ RDENCA182WJQZ RDENCA182WJQZ No Changes
LED, R/C UNIT (DUNTKD897FM53)
J101 Jack QJAKJA014WJZZ - - Delete
R111 Resistor 22 1/4W Metal Oxide VRS-TW2ED220JY - - Delete
R112 Resistor 100k 1/16W Metal Oxide VRS-CY1JF104JY - - Delete
R113 Resistor 22 1/4W Metal Oxide VRS-TW2ED220JY - - Delete
R114 Resistor 100k 1/16W Metal Oxide VRS-CY1JF104JY - - Delete
R115 Resistor 1k 1/16W Metal Oxide VRS-CY1JF102JY - - Delete
SUB UNIT (DUNTKD893FM52 / DUNTKD893FM53)
C1319 Capacitor 220 6.3V Electrolytic VCEASX0JN227MY - - Delete
C1320 Capacitor 10 16V Ceramic RC-KZA510WJPZY - - Delete
C1321 Capacitor 0.1 25V Ceramic VCKYCY1EF104ZY - - Delete
C1322 Capacitor 220 6.3V Electrolytic VCEASX0JN227MY - - Delete
C1326 Capacitor 1000p 50V Ceramic VCKYCY1HB102KY - - Delete
C1327 Capacitor 1000p 50V Ceramic VCKYCY1HB102KY - - Delete
C1328 Capacitor 1 10V Ceramic VCKYCY1AB105KY - - Delete
C1329 Capacitor 33 10V Electrolytic VCEASX1AN336MY - - Delete
C1330 Capacitor 0.1 25V Ceramic VCKYCY1EF104ZY - - Delete
C1337 Capacitor 1 10V Ceramic VCKYCY1AB105KY - - Delete
C1901 Capacitor 1 10V Ceramic VCKYCY1AB105KY - - Delete
C1902 Capacitor 1 10V Ceramic VCKYCY1AB105KY - - Delete
C3447 Capacitor 1 10V Ceramic VCKYCY1AB105KY - - Delete
C3448 Capacitor 1 10V Ceramic VCKYCY1AB105KY - - Delete
C3449 Capacitor 0.1 16V Ceramic VCKYCY1CB104KY - - Delete
C5002 Capacitor 0.01 50V Ceramic VCKYCY1HB103KY - - Delete
C5003 Capacitor 4700p 50V Ceramic VCKYCY1HB472KY - - Delete
C5004 Capacitor 4700p 50V Ceramic VCKYCY1HB472KY - - Delete
D1901 Diode DA221TL VHDDA221///-1Y - - Delete
FB5001 Ferrite Bead BLN-0051TA RBLN-0051TAZZY - - Delete
FB5002 Ferrite Bead BLN-0051TA RBLN-0051TAZZY - - Delete
FL5001 Filter RFILN0017TAZZY - - Delete
FL5002 Filter RFILN0017TAZZY - - Delete
FL5003 Filter RFILN0017TAZZY - - Delete
IC1302 IC BH3544F-E2 VHIBH3544F+-1Y - - Delete
IC1901 IC TC4W66F (TE12L,F) VHITC4W66F/-1Y - - Delete
IC1902 IC TC4W66F (TE12L,F) VHITC4W66F/-1Y - - Delete
IC2001 IC M30626FHPFPU5C RH-IXA648WJN2Q RH-IXA650WJN1Q RH-IXA650WJN1Q Changes
L1303 Coil Peaking 100uH VPCNN101J7R7NY - - Delete
P5009 Plug 14pin (VD) QPLGNA334WJZZY - - Delete
Q1302 Transistor PDTC144EE VSRDTC144EE-1Y - - Delete
Q1901 Transistor 2SC3928A VS2SC3928AR-1Y - - Delete
Q1902 Transistor UM6K1N TN VSUM6K1NTN+-1Y - - Delete
Q1903 Transistor QS6K1 VSQS6K1++++-1Y - - Delete
Q1904 Transistor PDTA144EK VSRDTA144EK-1Y - - Delete
Q2002 Transistor PDTC144EE VSRDTC144EE-1Y - - Delete
R1309 Resistor 18 1/4W Metal Oxide VRS-TW2ED180JY - - Delete
R1310 Resistor 18 1/4W Metal Oxide VRS-TW2ED180JY - - Delete
R1312 Resistor 100k 1/16W Metal Oxide VRS-CY1JF104JY - - Delete
R1313 Resistor 470 1/16W Metal Oxide VRS-CY1JF471JY - - Delete
R1314 Resistor 470 1/16W Metal Oxide VRS-CY1JF471JY - - Delete
R1901 Resistor 1k 1/16W Metal Oxide VRS-TV1JD102JY - - Delete
R1902 Resistor 1k 1/16W Metal Oxide VRS-TV1JD102JY - - Delete
R1903 Resistor 4.7k 1/16W Metal Oxide VRS-CY1JF472JY - - Delete
R1904 Resistor 150k 1/16W Metal Oxide VRS-CY1JF154JY - - Delete
R1907 Resistor 1M 1/16W Metal Oxide VRS-CY1JF105JY - - Delete
R1908 Resistor 1M 1/16W Metal Oxide VRS-CY1JF105JY - - Delete
R1909 Resistor 1M 1/16W Metal Oxide VRS-CY1JF105JY - - Delete

iii

LC-32PX5M/X/LC-37PX5M/X

Ref. No. Description LC-37BX5M LC-37PX5M LC-37PX5X Note

R1910 Resistor 1M 1/16W Metal Oxide VRS-CY1JF105JY - - Delete
R1911 Resistor 150k 1/16W Metal Oxide VRS-CY1JF154JY - - Delete
R1912 Resistor 0 1/16W Metal Oxide - VRS-CJ1JF000JY VRS-CJ1JF000JY Add
R2002 Resistor 1k 1/16W Metal Oxide VRS-CY1JF102JY - - Delete
R2003 Resistor 22k 1/16W Metal Oxide VRS-CY1JF223JY - - Delete
R2005 Resistor 22k 1/16W Metal Oxide VRS-CY1JF223JY - - Delete
R2008 Resistor 100k 1/16W Metal Oxide VRS-CY1JF104JY - - Delete
R2034 Resistor 15k 1/16W Metal Oxide VRS-CY1JF153JY - - Delete
R2051 Resistor 100 1/16W Metal Oxide VRS-CY1JF101JY VRS-CY1JF102JY VRS-CY1JF102JY Changes
R2075 Resistor 100 1/16W Metal Oxide VRS-CY1JF101JY - - Delete
R3465 Resistor 100 1/16W Metal Oxide VRS-CY1JF101JY - - Delete
R3466 Resistor 100 1/16W Metal Oxide VRS-CY1JF101JY - - Delete
R5008 Resistor 1k 1/16W Metal Oxide VRS-CY1JF102FY - - Delete
R5011 Resistor 47k 1/16W Metal Oxide VRS-CY1JF473JY - - Delete
R5014 Resistor 0 1/16W Metal Oxide VRS-CY1JF000JY - - Delete
OPERATION Unit (DUNTKE097FM04)
All parts are changed.

In trouble shooting table, "No audio heard (4)" and "No external video screen <INPUT3>" are abolished.

Refer to the PARTS GUIDE for CABINET PARTS, SUPPLIED ACCESORIES, PACKING PARTS and SERVICE JIGS.

iv

LC-32PX5M/X/LC-37PX5M/X

LC-37PX5M

SAFETY PRECAUTION

Service Manual

IMPORTANT SERVICE SAFETY PRECAUTION

Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and the
servicing guidelines which follow:

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 110 ~ 240 volt AC outlet.

• Using two clip leads, connect a 1.5k ohm, 10 watt resistor paral­leled by a 0.15µF capacitor in series with all exposed metal cabinet
parts and a known earth ground, such as electrical conduit or elec­trical ground connected to an earth ground.

• Use an AC voltmeter having with 5000 ohm per volt, or higher, sen­sitivity 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 non polarized adaptor plug must be used
only for the purpose of completing these checks.)
Any reading of 0.74 Vrms (this corresponds to 0.5 mA rms AC.) or
more is excessive and indicates a potential shock hazard which
must be corrected before returning the monitor to the owner.

DVM

AC SCALE

1.5k ohm
10W

0.15µF

TEST PROBE

TO EXPOSED
METAL PARTS

CONNECT TO
KNOWN EARTH
GROUND

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

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
Lists 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.

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

v

LC-32PX5M/X/LC-37PX5M/X

Precautions for using lead-free solder

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.

Example:

L Fa

Indicates lead-free solder of tin, silver and copper.

Indicates lead-free solder of tin, silver and copper.

L F a/a

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 dam­age 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

Part No. Description Code

ZHNDAi123250E J φ0.3mm 250g (1roll) BL
ZHNDAi126500E J φ0.6mm 500g (1roll) BK
ZHNDAi12801KE J φ1.0mm 1kg (1roll) BM

vi

LC-32PX5M/X/LC-37PX5M/X

LC-37PX5M

CHAPTER 1. SPECIFICATIONS

[1] SPECIFICATIONS

Service Manual

Model

Item

LCD panel

LC-32PX5M/X

32 (80 cm) Advanced
Super View & BLACK TFT
LCD

Video Colour System

TV
Function

TV-Standard

Receiving

VHF/UHF

PAL/SECAM/NTSC 3.58/NTSC 4.43/PAL 60

PAL: B/G, D/K, I SECAM: B/G, D/K, K/K

44.25—863.25 MHz

Channel

CATV

TV-Tuning System

STEREO/BILINGUAL

Brightness

S1—S41ch (including Hyperband)

Auto Preset 99 ch

NICAM: B/G, I, D/K A2 stereo: B/G

450 cd/m

2

Viewing angles H : 176º V : 176º

10W 2

4 cm 2pcs, Ø 2 cm 2pcs

01srekaepS

Terminals

Rear

ANTENNA IN

UHF/VHF 75 DIN type

6631(stod462,741,3stodforebmuN 768 3dots)

LC-37PX5M/X

(94 cm) Advanced

37
Super View & BLACK TFT
LCD

1

NTSC: M

INPUT 1

INPUT 2

INPUT 3

INPUT 4

PC INPUT

MONITOR OUTPUT

RS-232C

OSD language

Power Requirement

Power Consumption

without stand

Weight

with stand

Operating Temperature

VIDEOin,AUDIOin,
COMPONENT in (480I, 576I, 480P, 576P, 720P/60Hz, 1080I/50Hz, 1080I/60Hz)

VIDEOin,AUDIOin,
COMPONENT in (480I, 576I, 480P, 576P, 720P/60Hz, 1080I/50Hz, 1080I/60Hz)

HDMI (HDMI input) (480P, 576P, 720P/60Hz, 1080I/50Hz, 1080I/60Hz), AUDIO in

HDMI (HDMI input) (480P, 576P, 720P/60Hz, 1080I/50Hz, 1080I/60Hz)

15 pin mini D-sub, AUDIO in (Ø 3.5mm jack)

VIDEO out, AUDIO out

9 pin D-sub male connector

English/Chinese/Arabic

AC 110—240 V, 50/60 Hz

158 W (0.8 W Standby)

16.5 kg

18.4 kg

171 W (0.8 W Standby)

20.3 kg

22.9 kg

0°C — 40°C

units. There may be some deviations from these values in individual units.

1 – 1

LC-37PX5M

CHAPTER 2. OPERATION MANUAL

[1] OPERATION MANUAL

Part names

TV (Front)

LC-32PX5M/X/LC-37PX5M/X

Service Manual

Channel up ( )/down ( ) buttons

Volume up ( )/down ( ) buttons

TV/VIDEO button

POWER (On/Off) button

Remote control sensor

OPC sensor

POWER indicator

2 – 1

OPC indicator*

SLEEP timer indicator

*OPC: Optical Picture Control

LC-32PX5M/X/LC-37PX5M/X

Part names

TV (Rear)

RS-232C terminal

PC INPUT terminals

INPUT 4 (HDMI) terminal

INPUT 3 (HDMI) terminals

INPUT 1 terminals

INPUT 2 terminals

MONITOR OUTPUT

terminals

Antenna input terminal

AC INPUT terminal

2 – 2

Part names

Remote control unit

LC-32PX5M/X/LC-37PX5M/X

Select the TELETEXT mode. (all TV
image, all TEXT image, TV/TEXT
image)

POWER (STANDBY/ON)

(TELETEXT)

To switch the power on and off.

(Hold)

TELETEXT mode: Stop updating
Teletext pages automatically. Press

again to release the hold mode.

0—9

Set the channel.
TELETEXT mode: Set the page.

(Flashback)

Press to return to the previous channel
or external input mode.

WIDE

Change the wide image mode.

AV MO D E

Select a video setting: AV MODE
(STANDARD, MOVIE, GAME, USER,
DYNAMIC, DYNAMIC (FIXED)), PC MODE
(S TANDAR D , USER)

MPX

Select the sound multiplex mode.

(Reveal hidden for

TELETEXT)

TELETEXT mode: Display hidden
characters.

(SUBTITLE for TELETEXT)

To turn the subtitles on and off.

(Top/Bottom/Full)

TELETEXT mode: Set the area of

(Subpage)

Display the Teletext subpage directly.

TV/VIDEO (INPUT SOURCE)

Select an input source. (TV, INPUT 1,
INPUT 2, INPUT 3, INPUT 4, PC)

OPC

To switch Optical Picture Control on
and off.

FREEZE

Freeze a motion picture on the screen.

DISPLAY

Display the channel and input source.

Set the volume.

(Mute)

VOL /VOL

Mute the sound.

P&P

Set the dual picture mode. Press P&P
again to return to normal view.

SURROUND

Select Surround settings.

/ / / (Cursor)

Select a desired item on the setting
screen.

EXIT

Return to the default screen.

NOTE

• When using the remote control unit, point it at the TV.

CH /CH

TV input mode: Select the channel.
TELETEXT mode: Select the page.

SLEEP

Set the Sleep timer.

SELECT

To select either screen to be active in
Dual screen mode.

MENU

Display the menu screen.

ENTER

Execute a command.

RETURN

MENU mode: Return to the previous
menu screen.

Colour (Red/Green/Yellow/
Blue)

TELETEXT mode: Select a page.

2 – 3

LC-32PX5M/X/LC-37PX5M/X

LC-37PX5M

CHAPTER 3. DIMENSIONS

[1] DIMENSIONS

Service Manual

LC-32PX5M/X, LC-37PX5M/X

700.4 (823)

533 (600)57.5 (57)

590.5 (657)

506 (542)

797 (920)

Unit: mm

NOTE

• Figures within parentheses are for LC-37PX5M/X.

100 (84) 116 (116)

395.1 (464)

343 (377)

200 (200)

250 (292)

200 (200)

85 (85)

3 – 1

LC-32PX5M/X/LC-37PX5M/X

LC-37PX5M

CHAPTER 4. REMOVING OF MAJOR PARTS

Service Manual

[1] REMOVING OF MAJOR PARTS

1. Detach the 2 BUS Covers [1].

2. Remove the 4 screws [2] and detach the Stand.

3. Remove the 1 screw [3], 4 (32PX5M/X)/6 (37PX5M/X) screws [4] and the 9 (32PX5M/X)/10 (37PX5M/X) screws [5].

Detach the Rear Cabinet.

(LC-32PX5M/X)

BUS Cover

5

1

3

4

2

Stand

(LC-37PX5M/X)

BUS Cover

5

1

3

4

2

Stand

4 – 1

LC-32PX5M/X/LC-37PX5M/X

4. Remove the 4 screws [6] and detach the Support Angle.

5. Remove the 3 screws [7] and the Bottom Cover.

6. Remove the 2 (32PX5M/X)/4 (37PX5M/X) screws [8] and detach the Stand Angle.

7. Remove the 6 (32PX5M/X)/4 (37PX5M/X) screws [9].

Detach the SUS Angle-L and SUS Angle-R.

8. Remove the 2 screws [10] and detach the Top Control Cover Ass'y.

Remove the 2 screws [11] , 1 screw [11A] and detach the OPERATION PWB Unit from Top Control Cover Ass'y.

(LC-32PX5M/X)

Top Control
Cover Ass'y

OPERATION
PWB Unit

11

10

6

䬌䎮䎰䬍

Center Angle-R

Support Angle

䎤

11A

䬌䎮䎰䬍

9

Center Angle-L

9

䎥

Stand Angle

䎥

䎤

Bottom Cover

8

7

4 – 2

LC-32PX5M/X/LC-37PX5M/X

(LC-37PX5M/X)

Top Control
Cover Ass'y

OPERATION
PWB Unit

11

10

䬌䎮䎰䬍

6

11A

䬌䎮䎰䬍

Center Angle-R

Support Angle

䎤

9

Center Angle-L

9

䎥

Stand Angle

䎥

䎤

Bottom Cover

8

7

4 – 3

LC-32PX5M/X/LC-37PX5M/X

9. Remove all the connectors [12] from all the PWBs.

(LC-32PX5M/X)

䬌䎮䎰䬍

䬌䎮䎰䬍

䬌䎶䎫䬍

䬌䎯䎹䬍

䬌䎯䎹䬍

䬌䎶䎫䬍

(LC-37PX5M/X)

12

䬌䎮䎰䬍

䬌䎮䎰䬍

䬌䎵䎤䬍

12

䬌䎵䎤䬍
䬌䎳䎧䬍
䬌䎳䎨䬍

䬌䎶䎳䬍

䬌䎶䎫䬍

䬌䎯䎹䬍

䬌䎯䎹䬍

䬌䎦䎱䎔䬍

䬌䎦䎱䎕䬍
䬌䎦䎱䎖䬍

12

䬌䎶䎫䬍

12

䬌䎵䎤䬍

12

䬌䎵䎤䬍
䬌䎳䎧䬍
䬌䎳䎨䬍

䬌䎶䎳䬍

䬌䎦䎱䎔䬍

䬌䎦䎱䎕䬍
䬌䎦䎱䎖䬍

12

4 – 4

10.Remove the 2 (32PX5M/X)/4 (37PX5M/X) screws [13]. Detach the Speaker Box L and Speaker Box R.

11.Remove the 5 (32PX5M/X)/4 (37PX5M/X) screws [14] and detach Chassis Tray.

12.Remove the 2 screws [16] and 2 screws [17].

Detach the AV Terminal Cover.

13.Remove the 8 screws [18] and detach the POWER PWB Unit from Chassis Tray.

14.Remove the 6 screws [19] and detach the SUB PWB Unit from Chassis Tray.

15.Remove the 3 screws [20] and detach the MAIN PWB Unit from SUB PWB Unit.

(LC-32PX5M/X)

20

19

MAIN PWB Unit

LC-32PX5M/X/LC-37PX5M/X

SUB PWB Unit

AV Terminal Cover

14

17

16

18

14

POWER PWB Unit

Chassis Tray

14

Speaker Box R

13

4 – 5

13

Speaker Box L

LC-32PX5M/X/LC-37PX5M/X

(LC-37PX5M/X)

MAIN PWB Unit

20

19

SUB PWB Unit

AV Terminal Cover

14

17

16

18

14

POWER PWB Unit

Chassis Tray

13

Speaker Box R

Speaker Box L

4 – 6

13

16.Remove the 7 (32PX5M/X)/6 (37PX5M/X) screws [21] and take out the LCD Panel from Front Cabinet.

17.Remove the 9 (32PX5M/X)/14 (37PX5M/X) screws [22] and detach the LCD Angles.

18.Remove the 2 screws [24] and detach the LED, R/C PWB Unit.

(LC-32PX5M/X)

LC-32PX5M/X/LC-37PX5M/X

LED, R/C
PWB Unit

LED Cover

24

LCD Angle
Bottom R

22

22

21

LCD Angle Top R

22

21

LCD Angle Top L

LCD Angle
Bottom C

21

21

22

LCD Angle
Bottom R

22

21

4 – 7

LC-32PX5M/X/LC-37PX5M/X

(LC-37PX5M/X)

LCD Angle Top R

LED, R/C
PWB Unit

LED Cover

22

24

LCD Angle
Bottom L

22

21

21

LCD Angle
Top C

22

22

LCD Angle
Bottom C

21

22

LCD Angle Top L

LCD Angle
Bottom R

22

21

4 – 8

-MEMO-

LC-32PX5M/X/LC-37PX5M/X

4 – 9

LC-32PX5M/X/LC-37PX5M/X

㪦

㪚

㪇

LC-37PX5M

CHAPTER 5. BLOCK DIAGRAM/OVERALL WIRING DIAGRAM

Service Manual

[1] BLOCK DIAGRAM

㪣㪜㪛

㪫㪦㩷㪪㪬㪙

J

㪣㪚㪊㪉㪆㪊㪎㪧㪯㪌㩷㪙㫃㫆㪺㫂㩷㪛㫀㪸㪾㫃㪸㫄

㪙㪬㪂㪌㪭㪃㪙㪬㪂㪊㪅㪊㪭㪃㪦㪧㪚㪂㪊㪅㪊㪭㪃㪩㪆㪚㪃㪧㪦㪮㪞㪶㪣㪜㪛㪃㪧㪦㪮㪩㪶㪣㪜㪛㪃㪣㪜㪛㪶㪰㪦㪰㪘㪢㪬㪃㪣㪜㪛㪶㪦㪧㪚㪃㪦㪧㪚㪃㪟㪧㪶㪣㪃㪟㪧㪶㪩㪃㪟㪧㪶㪧㪣㪬㪞㪃㪟㪧㪶㪞㪥㪛

㪫㪦㩷㪪㪬㪙

I

㪦㪧㪚

㪠㪚㪈㪇㪈

㪣㪜㪛

㪛㪈㪇㪊㪆㪈㪈㪋㪆㪈㪈㪌

㪦㪧㪜㪩㪘㪫㪠㪦㪥

㪚㪦㪥㪫㪩㪦㪣㩷㪪㪮

㪪㪈㪎㪈㪄㪪㪈㪎㪌

㪙㪬㪂㪊㪅㪊㪭㪃㪢㪜㪰㪈㪃㪢㪜㪰㪉㪃㪪㪫㪙㪰㪶㪧㪦㪮

㪪㪬㪙

㪠㪥㪧㪬㪫㪈㩷㪭㪠㪛㪜㪦㩷㪠㪥

㪡㪊㪋㪇㪉

H

㩷

㪡㪊㪋㪇㪍

㪠㪥㪧㪬㪫㪉㩷㪭㪠㪛㪜㪦㩷㪠㪥

㪡㪊㪋㪇㪉

㪠㪥㪧㪬㪫㪈㪶㪚㪭㪙㪪

㪠㪥㪧㪬㪫㪉㪶㪚㪭㪙㪪

㪭㪉㪶㪭

㪭㪊㪶㪭

㪘㪭㩷㪪㪮

㪭㪟㪠㪤㪤㪈㪋㪐㪉㪙㪝㪄㪈㪰

㪌㩷㫀㫅㫇㫌㫋㩷㪄㪉㩷㫆㫌㫋㫇㫌㫋

㪍㪻㪙㩷㪘㪤㪧

㪇㪈㪇㪇㪄

㪠㪩㩷㪩㪼㪺㫀㪼㫍㪼㫉

㪩㪤㪚㪈㪇㪈

㪇㪈㪎㪈㪄

㪧㪦㪮㩷㪪㪮

㪪㪈㪎㪎

㪩㪪㪄㪉㪊㪉㪚

㪨㪪㪦㪚㪥㪇㪋㪊㪏㪝㪡㪱㪱

㪠㪥㪧㪬㪫㪈㪆㪉㩷㪭㪠㪛㪜㪦㪃㪠㪥㪧㪬㪫㪈㪆㪉㩷㪰㩷㪻㪼㫋㪼㪺㫋

㪠㪚

㪉㪭㫇㫇㩷㪦㪬㪫㪧㪬㪫㪄㪫㪜㪩㪤㪠㪥㪘㪫㪠㪦㪥

㪭㪦㪬㪫㪈 㪚㪭㪙㪪 㪠㪩㪜㪤

G

㪤㪫㪭㪶㪭 㪉㪭㫇㫇㩷㪦㪬㪫㪧㪬㪫㪄㪫㪜㪩㪤㪠㪥㪘㪫㪠㪦㪥

㪫㪬㪥㪜㪩㩷㪭㩷㪦㪬㪫

㪫㪬㪊㪋㪇㪈

㪭㪫㪉㪮㪌㪚㪛㪌㪌㪈

㪫㪬㪥㪜㪩㪶㪚㪭㪙㪪 㪪㪫㪭㪶㪭 㪭㪦㪬㪫㪉

㪉㪭㫇㫇㩷㪦㪬㪫㪧㪬㪫㪄㪫㪜㪩㪤㪠㪥㪘㪫㪠㪦㪥

㪪㪚㪣㪃㪪㪛㪘㩿㪌㪭㪀

㪘㪝㪫㪃㪘㪞㪚

㪧㪈㪇㪈

㪨㪧㪣㪞㪥㪘㪊㪊㪌㪮㪡㪱㪱㪰

㪈㪌㫇㫀㫅

㪧

㪨㪧㪣㪞㪥㪘㪊㪋㪐㪮㪡㪱㪱㪰

㪧㪈㪎㪈

㪨㪧㪣㪞㪥㪘㪇㪌㪐㪮㪡㪱㪱㪰

㪌㫇㫀㫅

㪧

㪨㪧㪣㪞㪥㪘㪊㪉㪌㪮㪡㪱㪱㪰

㪩㫏㪃㪫㫏

㪦㪧㪚

㪪㪧㪶㪤㪬㪫㪜

㪘㪚㪶㪚㪫㪩㪣㪃㪧㪦㪮

㪘㪚㪶㪛㪜㪫㪜㪚㪫

㪠㪚㪉㪇㪈㪇

㪤

㪠㪚㪉

F

E

D

C

B

㪤㪦㪥㪠㪫㪦㪩㩷㪭㩷㪦㪬㪫

㪠㪥㪧㪬㪫㪈

㪚㪦㪤㪧㪦㪥㪜㪥㪫㩷㪠㪥

㪡㪊㪋㪇㪋

㪠㪥㪧㪬㪫㪉

㪚㪦㪤㪧㪦㪥㪜㪥㪫㩷㪠㪥

㪡㪊㪋㪇㪋

㪠㪥㪧㪬㪫㪈㩷㪘㪬㪛㪠㪦㩷㪠㪥

㪡㪊㪋㪇㪉

㪠㪥㪧㪬㪫㪉㩷㪘㪬㪛㪠㪦㩷㪠㪥

㪡㪊㪋㪇㪉

㪠㪥㪧㪬㪫㪊㩷㪘㪬㪛㪠㪦㩷㪠㪥

㪡㪊㪋㪇㪌

㪧㪚㩷㪘㪬㪛㪠㪦㩷㪠㪥

㪡㪊㪋㪇㪍

㪫㪬㪥㪜㪩㩷㪪㪄㪠㪝㩷㪦㪬㪫

㪫㪬㪊㪋㪇㪈

㪤㪦㪥㪠㪫㪦㪩㩷㪣㪆㪩㩷㪦㪬㪫

㪣㪶㪤㪬㪫㪜

㪠㪥㪭㪜㪩㪫㪜㪩

㪣㪚㪛㩷㪤㪦㪛㪬㪣㪜

㪚㪭㪙㪪㩿㪪㪚㩷㪤㪠㪯㪀 㪪㪟

㪭㪉㪶㪣㪆㪩

㪭㪊㪶㪣㪆㪩

㪤㪫㪭㪶㪣㪆㪩

㪪㪫㪭㪶㪣㪆㪩

㪚㪦㪤㪧㪦㪥㪜㪥㪫㩷㪪㪮
㪭㪟㪠㪪㪤㪌㪊㪇㪈㪚㪪㪄㪈㪰

㪚㪦㪤㪧㪦㪥㪜㪥㪫㩷㪪㪮
㪭㪟㪠㪪㪤㪌㪊㪇㪈㪚㪪㪄㪈㪰

㪛㪶㪪㪜㪣
㪝㪶㪪㪜㪣㪈㪆㪉

㪘㪭㩷㪪㪮

㪠㪚

㪭㪟㪠㪤㪤㪈㪋㪐㪉㪙㪝㪄㪈㪰

㪪㪠㪝㵘㪘㪤㪧

㪨

㪪㪶㪪㪫㪙㪰㪃㪣㪶㪤㪬㪫㪜㪉

㪰㪃㪧㪹㪃㪧㫉

㪘㪬㪛㪠㪦㩷㪘㪤㪧

㪘㫌㪻㫀㫆

㪭㫆㫃㫌㫄㪼㪆㪜㪨㪆㪟㪧

㪘㪤㪧㪆㪪㫌㫉㫉㫆㫌㫅㪻

㪪㪧㪶㪣㪆㪩

㪪㪧

㪪㪧㪶㪣㪆㪩 㪩㪆㪣㪂㪄

㩿㪠㪉㪪㪀
㩿㪪㪶㪠㪝㪀

㪘㫌㪻㫀㫆㩷㪘㪤㪧

㪠㪥㪧㪬㪫㪈㪶㪰㪃㪧㪹㪃㪧㫉 㪰㪃㪧㪹㪃㪧㫉

㪠㪥㪧㪬㪫㪉㪶㪰㪃㪧㪹㪃㪧㫉

㪠㪥㪧㪬㪫㪈㩷㪣㪆㪩

㪠㪥㪧㪬㪫㪉㩷㪣㪆㪩

㪠㪥㪧㪬㪫㪊㩷㪣㪆㪩 㪣㪆㪩

㪧㪚㩷㪣㪆㪩

㪪㪶㪠㪝

㪠㪥㪭㪜㪩㪫㪜㪩

㪚㪦㪥㪥㪜㪚㪫㪜㪩

㪫㪦㩷㪤㪘㪠㪥

A

12345678910

5 – 1

LC-32PX5M/X/LC-37PX5M/X

㫏

㪤㪘㪠㪥

㪧㪚㪶㪟㪃㪧㪚㪶㪭
㪧㪚㪶㪩㪆㪞㪆㪙

㪟㪧㪛㪚㪫㪣㪈㪆㪉
㪟㪧㪛㪈㪆㪉

㪪㪿㫄㫀㫋㫋㩷㫋㫉㫀㪾㪼㫉

㪘㪚㪶㪛㪜㪫㪜㪚㪫

㪠㪚㪉㪇㪈㪈

㪩㪜㪪㪜㪫

㪦㪧㪚

㪜㪤

㪤㪚㪬

㪠㪚㪉㪇㪇㪈

㪧㪦㪮 㪊㪅㪊㪭

㪪㪟㪦㪩㪫㪶㪛㪜㪫 㪚㪭㪙㪪

㪬㪘㪩㪫 㪈㪅㪌㪭

㪠㪚㪉㪇㪇㪍

㪜㪜㪧㪩㪦㪤

㪠㪚㪉㪇㪇㪐

㪫㪟㪜㪩㪤㪠㪪㪫㪦㪩

㪫㪟㪉㪇㪇㪈

㪛㪭㪧㪶㪊㪊㪚㪫㪩㪣 㪦㪝㪣㪶㪧㪮㪤

㪠㪥㪭㪶㪧㪦㪮㪃㪦㪝㪣㪶㪛㪘㪚 㪉㪎㪤㪟䌺㩷㪚㫉㫐㫊㫋㪸㫃
㪫㪦㩷㪠㪥㪭㪜㪩㪫㪜㪩 㫧㪊㪇㫇㫇㫄

㪉㪎㪤㪟䌺㩷㪚㫉㫐㫊㫋㪸㫃

㪊㪅㪊㪭 㪊㪅㪊㪭
㪈㪅㪌㪭 㪉㪅㪌㪭

㪛㪭㪧㪄㪤㪉

㪠㪚㪏㪇㪈

㪪㪶㪠㪝

㪜㪜㪧㪩㪦㪤

㪠㪉㪪

㪏㪹㫀㫋 㪏㪹㫀㫋 㪪㪛㪘㪃㪪㪚㪣

㪰㪃㪧㪹㪃㪧㪩

㪠㪚㪋㪇㪉

㪛㪭㪧㪄㪯

㪠㪚㪏㪇㪈

㪟㪃㪭

㪧㪚㩷㪠㪥

㪪㪚㪋㪇㪈

㪨㪪㪦㪚㪥㪘㪈㪇㪈㪮㪡㪱㪱㩷㩿㪛㪊㪇㪀

㪨㪪㪦㪚㪥㪘㪌㪉㪐㪮㪡㪱㪱

㪪㪛㪘㪃㪪㪚㪣

㪜㪜㪧㪩㪦㪤

㪠㪚㪋㪇㪈

㪠㪥㪧㪬㪫㪊㪆㪋

㪟㪛㪤㪠㩷㪠㪥㩷㪈㪆㪉

㪪㪚㪋㪇㪉

㪩㪆㪞㪆㪙

㪪㪛㪘
㪪㪚㪣

㪪㪛㪘㪃㪪㪚㪣
㪩㪩㪈㪯㪚㪆㪇㪆㪈㪆㪉㪄㪆㪂

㪟㪛㪤㪠㩷㪩㪼㪺㫀㪼㫍㪼㫉

㪤㪪㪫㪊㪊㪏㪍

㪠㪚㪏㪎㪇㪈
㪊㪅㪊㪭㩷㪉㪊㪌㫄㪘
㪉㪅㪌㪭㩷㪈㪈㪏㫄㪘

㪈㪋㪅㪊㪈㪏㪤㪟䌺㩷㪚㫉㫐㫊㫋㪸㫃

㪟㪛㪚㪧

㪜㪜㪧㪩㪦㪤

㫧㪊㪇㫇㫇㫄

㪠㪚㪏㪎㪇㪋

㪜㪜㪧㪩㪦㪤

㪠㪚㪋㪇㪊

㪄

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LC-32PX5M/X/LC-37PX5M/X

[2] OVERALL WIRING DIAGRAM (LC-32PX5M/X)

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