Sharp LC-32LE260M Schematic

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1st Addition

SERVICE MANUAL

No. S94M55LC-32LE260M

LED BACKLIGHT TV

MODEL:

LC-32LE260M

OUTLINE

This model is based on the LC-32LE265M and is changed some parts.This Service Manual covers the modification alone. For the other points, please refer to the LC-32LE265M Service Manual.

CONTENTS

CHAPTER 1. SAFETY PRECAUTION

[1] IMPORTANT SERVICE SAFETY PRE-

CAUTION 1-1

[2] PRECAUTION FOR USING LEAD-

FREE SOLDER 1-2

CHAPTER 2. DIFFERENCES FROM BASE MODEL

[1] OUTLINE & DIFFERENCES FROM

BASE MODEL 2-1

CHAPTER 3. SPECIFICATIONS

[1] SPECIFICATIONS 3-1

CHAPTER 7. PRINTED WIRING BOARD ASSEMBLIES

[1] MAIN UNIT 7-1

CHAPTER 8. SCHEMATIC DIAGRAM

[1] DESCRIPTION OF SCHEMATIC DIA-

GRAM 8-1

[2] MAIN UNIT 8-2

Parts Guide

CHAPTER 4. ADJUSTMENT

[1] ADJUSTMENT 4-1

CHAPTER 5. TROUBLESHOOTING TABLE

[1] TROUBLESHOOTING TABLE 5-1

CHAPTER 6. SYSTEM BLOCK DIAGRAM

[1] SYSYTEM BLOCK DIAGRAM 6-1

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-32LE260M

CHAPTER 1. SAFETY PRECAUTION

[1] IMPORTANT SERVICE SAFETY PRECAUTION

IMPORTANT SERVICE SAFETY PRECAUTION

S erv ic e wor k s hould be perfor med o nly by qualifie d s erv ic e tec h nic ia ns wh o a re thoro ugh ly fa milia r with all s afe ty c hec ks and the s e rv ic in g guide lines which follo w:

WA R NING

1. F o r continue d s a fe ty, no mo dific a tion of any circ u it sho ul d be a tte mpted.

2. Dis connect AC power before servicing.

BEFORE RETURNING THE RECEIVER (Fire &

All checks must be repeated with the AC cord plug connection reversed. ( If nec essary, a nonpola riz ed adaptor plug mus t be us e d only for the purpose of c ompleting these checks .)

Any reading of 0.74 V rms (this c orresponds to 0.5 mA rms AC . ) or more is excessive and indica tes a potential shock hazard which mus t be co rr e c te d before r e tur ning the m on ito r to the o wn e r.

S hock Hazard)

B efore returning the rec eiver to the user, perform the following safety checks:

3. Inspec t all lead dres s to ma ke ce rtain tha t lea ds are not pinched, a nd check that hardware is not lodged between the c hassis and other metal parts in the receiver.

4. Inspect all protective devices such as non-metallic control knobs, ins ula tion ma teria ls , c a binet ba cks , a djus tme nt a nd co mpa rtme nt covers or s hie lds , is olation resistor-capa citor ne tworks , me chanica l ins ula tors , etc.

5. To be sure that no shock hazard exists, check for leakage current in the following manner.

• P lug the AC cord dire ctly into a 110 -240 volt AC outlet.

• Using two clip lea ds , connect a 1. 5k ohm, 10 wa tt res is tor parallele d by a 0.1 5 F ca pacitor in s eries with all e xposed me tal cabinet parts a nd a known earth ground, s uch a s electrical conduit or electrical ground connected to an e ar th ground.

• Us e an AC voltmeter having with 5000 ohm per volt, or higher, s ensitivity or measure the AC voltage drop across the resistor.

• C onne ct the res is tor connec tion to a ll expos ed me tal parts ha ving a re tu rn to the c h a s s is ( a nte nna , me ta l c a bin e t, s c rew hea ds , knobs and c o ntrol s ha fts, escutcheon, etc.) a nd me a s ure the AC voltage drop a c ro s s the r e s is tor.

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

TO E XPOSE D ME T AL P A R T S

DVM

AC S C AL E

1.5k ohm 10W

0.15µF

TES T PR OBE

CO NNE C T TO KNOWN EARTH GROUND

SAF ETY NOTICE

Many electrical and mechanical parts in L C D colour televis ion have special s a fety-related characteristics.

These characteristics are often not evident from visual inspection, nor can protection a fforded by them be necessarily increased by using repla ce ment compone nts ra ted for higher voltage, wattage, etc.

R eplacement parts which have these s pecial sa fety characte ris tics are identified in this manual; e lectrical c omponents having s uc h features

a re identified by " " and s haded areas in the R e placement P arts List and S chematic Diagrams .

For continued prote ction, re plac e ment parts mus t be identical to thos e us ed in the origina l circuit.

The us e o f a subs titute replaceme nt parts which do not ha ve the s ame s a fety c ha ra cteris tic s a s the fa c to ry re c o mm e nded re p la c e ment pa r ts shown in this service manual, may create shock, fire or other hazards.

1 – 1

LC-32LE260M

[2] PRECAUTION FOR USING LEAD-FREE SOLDER

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:

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

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 qC, 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 qC which is higher than the conventional lead solder by 40 qC, 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.

ead-free wire solder for servicing

PARTS CODE

ZHNDAi123250E BL J I0.3mm 250g (1roll) ZHNDAi126500E BK J I0.6mm 500g (1roll) ZHNDAi12801KE BM J I1.0mm 1kg (1roll)

PRICE RANK

PART

DELIVERY

DESCRIPTION

1 – 2

CHAPTER 2. DIFFERENCES FROM

LED/IR UNIT

DUNTKG463FM01

OPERATION MANUAL

KAZ/RUS

TINS-G234WJZZ

TINS-G244WJZZ

BASE MODEL

[1] OUTLINE & DIFFERENCES FROM BASE MODEL

OUTLINE

This model is based on LC-32LE265M and ƉĂƌƟĂůǇ ŵŽĚŝĮĞĚ For contents not covered in this Service DĂŶƵĂůĂĐĐŽƌĚŝŶŐůǇ ,please refer to LC-32LE265M Service DĂŶƵĂů

DIFFERENCES FROM BASE MODEL

LC-32LE260M

Ref.No ĞƐĐƌŝƉƟŽŶ Note

PRINTED WIRING BOARD ASSEMBLIES

N MAIN UNIT N MAIN UNIT (Philippines) N POWER UNIT -

N LED BAR ( TOP & BOTTOM ) N

CABINET AND MECHANICAL PARTS

1 FRONT CABINET ASSEMBLY 2 REAR CABINET ASSEMBLY -

SUPPLIED ACCESSORIES

X3 OPERATION MANUAL CHINESE-S X3 X3 X3 X3 X3

X3 X8 X9

LED BAR ( MIDDLE ) -

OPERATION MANUAL ENG/ARABIC OPERATION MANUAL FRE/POR OPERATION MANUAL INDO OPERATION MANUAL THAI OPERATION MANUAL ENG SPC

OPERATION MANUAL FRE RF ADAPTOR ADD ERRATA SHEET ADD

BASE MODEL LC-32LE265M LC-32LE260M S.MANUAL

DKEYMG486FM01 DKEYMG492FM01 DKEYMG486FM02 DKEYMG492FM02 DUNTKG409FM01

RUNTKB283WJZZ

RUNTKB284WJZZ

CCABAD142WJ01 CCABAD138WJ01 CCABBC358WJ01 CCABBC376WJ01

TINS-G227WJZZ TINS-G237WJZZ TINS-G228WJZZ TINS-G238WJZZ TINS-G233WJZZ TINS-G243WJZZ TINS-G230WJZZ TINS-G240WJZZ TINS-G229WJZZ TINS-G239WJZZ TINS-G235WJZZ TINS-G245WJZZ

TINS-G232WJZZ TINS-G242WJZZ

- QCNCWA969WJZZ

- TCAUHA617WJZZ

PACKING PARTS ( NOT REPLACEMENT )

PACKING CASE -

SPAKCH698WJZZ SPAKCH700WJZZ

2 – 1

LC-32LE260M

CHAPTER 3. SPECIFICATIONS

[1] SPECIFICATIONS

Speciﬁ cations

Item

LCD panel

Resolution

Video Colour System PAL/SECAM/NTSC 3.58/NTSC 4.43/PAL 60

TV Function

Audio ampliﬁ er/Speakers

Terminals Antenna input

USB device/File system USB Memory / FAT/FAT32

Photo ﬁ le format JPEG (.jpg) (DCF2.0 compliant). Progressive format jpeg ﬁ les are not supported.

Music ﬁ le format (Files may not be playable depending on the bitrate)

TV-Standard PAL: B/G, D/K, I SECAM: B/G, D/K, K/K

Receiving Channel

TV-Tuning System Auto Preset 99 ch

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

INPUT 1 / INPUT 2 HDMI (HDMI input, PC input)

INPUT 3 VIDEO in, AUDIO in, COMPONENT in

INPUT 4 VIDEO in, AUDIO in

OUTPUT AUDIO out, Headphone (

USB USB

Model

VHF/UHF 43.25—863.25 MHz

CATV

LC-32LE260M

80cm

1,049,088 pixels (1366 g 768)

NTSC: M

S1—S41ch (including Hyperband)

º671 : V º671 : Hselgna gniweiV

5 Wg 2 / 4 g 7 cm 2pcs

UHF/VHF 75 q DIN type

3.5 mm stereo)

MP3 (.mp3) Bitrate: 32 k, 40 k, 48 k, 56 k, 64 k, 80 k, 96 k, 112 k, 128 k, 160 k, 192 k, 224 k, 256 k, 320 kbps Sampling frequency: 32 k, 44.1 k, 48 kHz

/iahT/naisreP/naissuR/eseugutroP/hcnerF/cibarA/esenihC deﬁilpmiS/hsilgnEegaugnal DSO

Vietnamese/Indonesian

Power Requirement AC 110—240 V, 50/60 Hz

Power Consumption 41 W (1.0 W Standby)

Dimensions

without stand

with stand

Operating Temperature 0°C — 40°C

• As a part of policy of continuous improvement, SHARP reserves the right to make design and speciﬁ cation changes for product improvement without prior notice. The performance speciﬁ cation ﬁ gures indicated are nominal values of production units. There may be some deviations from these values in individual units.

739 (W) g 440 (H) g 93 (D) mm

739 (W) g 482 (H) g 174 (D) mm

)dnats htiw( gk 5.6 / )dnats tuohtiw( gk 7.5thgieW

3 – 1

CHAPTER 4. ADJUSTMENT

[1] ADJUSTMENT

This adjustment page is only covering MAIN SOFTWARE PACKAGE & FACTORY SETTING, for contents not covered in this page ,please refer to the LC-32LE265M Service Manual .

1.MAIN SOFTWARE PACKAGE

LC-32LE260M

egakcaP erawtfoS ledoM

LC-32LE260M (Asia)

LC-32LE260M (SPC)

Main Software Filename : XXX is Software version

If any changes of software, will be informed by MARUHEN.

Peach_ATV_Asia_Pack15_vXXX.bin

Peach_ATV_Asia_Pack16_vXXX.bin

2. FACTORY SETTING

Model Name Factory Setting

Key Name

A3KLG26SZ/Q/J/I/Y/B/N/M

A3KLG26SP

**Please do inspection for A3KLG26SPusing NTSC signal.

M-Setting 100000001010110 B/G ENGLISH

P-Setting 100000001011110 M ENGLISH

Remote Control

Code

S-System Setting OSD Language

Setting

4 – 1

LC-32LE260M

CHAPTER 5. TROUBLESHOOTING

TABLE

[1] TROUBLESHOOTING TABLE

No power (front LED failure to light up) or no startup (front LED failure to turn from red to green)

Is the AC cord connector tightly connected to the set? NO Reconnect the AC cord tightly and turn on the power again.

YES

Are the wire harnesses and other cables properly connected in the set?

NO Reconnect the wire harnesses and other cables properly in the

set.

YES

Are the DC/DC converter outputs and the output voltages along the control lines as specified?

1) D+5.0V (I C9601)

2) D+3.3V ( IC9602)

3) D+1.26 V (I C9604)

4) D+3.3V (IC9603)

5) D+1.8V (IC9606)

6) D+2.5 (IC9608)

YES

Is there 7.5V from IC9605 & IC9603 NO Check the AC_CTRL Line (90) of IC3301 , IC3101,X 3301

YES

Replace IC3301

NO Check the DC/DC converters and the control lines. Replace

defective parts as required.

crystal oscillation

5 – 1

With [RF] signal input No video onscreen (1)

No video in the UHF/VHF reception

Is there IF output from the tuner pin( 8 ) of TU1101 as specified? NO Check TU1101 and its peripheral circuits.

LC-32LE260M

Is there VIF input at pin 51 & 52 of IC3301? NO Check the circuit between TU1101 & IC3301.

Are there the signal outputs of IC3301(pin 33) ? NO Check IC3301 and its peripheral circuit.

Are there LVDS signal outputs from IC3301 at pin 61-64 and pin 66-71

Check LVDS cable, LCD controller (incl. panel) and their peripheral circuits.

With <Video> signal input No video onscreen (3)

No external input video onscreen <INPUT 3>

Is INPUT 3 selected on the input select menu screen? NO Select INPUT 3 on the input select menu screen to pick up the

Is there the video signal input at pin (31 ) of IC3301? NO Check the line between pin (7) of TL509 and pin (31) of IC3301.

YES

NO Check IC3301 and its peripheral circuit.

right input signal.

Are there LVDS signal outputs of IC3301 at pin 61-64 and pin

YES

66-71

YES Check LVDS cable, LCD controller (incl. panel) and their peripheral circuits.

NO Check IC3301 and its peripheral circuits.

5 – 2

LC-32LE260M

With <Component> signal input No video onscreen (2)

No external input video onscreen <INPUT 2>

Is INPUT 2 selected on the input select menu screen? NO Select INPUT 2 on the input select menu screen to pick up the

YES

Are there the Y, Pb and Pr signal inputs at pins (22), (24) and

(26) of IC 3301 respectively?

NO Check the line between pins (10)/(11)/(12) of TL504 ,TL505,

right input signal.

TL506 and pin (22),(24),(26)

YES Is input waveform of IC3301 normal? Y=(24)pin , Pb=(22) pin, Pr=(26) pin

YES

Are the LVDS signal output from IC3301 at pin 61-64 and pin 66-71 ?

YES Check LVDS cable, LCD controller (incl. panel) and their periph-

eral circuits.

With <HDMI> signal input No video onscreen (4)

No external input video onscreen <INPUT 1>.

Is INPUT 1 selected on the menu screen? NO Select INPUT 1 on the input select menu screen to pick up the

YES Are there signal outputs from SC1501 to IC3301? NO Check peripheral circuits between SC1501 and IC3301.

Check the line between pins (10)/(11)/(12) of TL504 ,TL505,

TL506 and pin (22),(24),(26)

Check IC3301 and its peripheral circuits.

right signal input.

Are there LVDS signal outputs of IC3301 at pin 61-64 and pin

YES

66-71

YES Check LVDS cable, LCD controller (incl. panel) and their peripheral circuits.

NO Check IC3301 and its peripheral circuits.

5 – 3

LC-32LE260M

No audio heard (1)

No sound in the UHF/VHF reception.

Is the IF output from the tuner pin (8) of TU1101 as specified? NO Check TU1101 and its peripheral circuits.

YES

Is there the I2C signal input at pins (55), (56) of IC3301? NO Check IC3301 and its peripheral circuits.

YES

Is there audio signal intput at pin(4),(10) of IC1701? NO Check connection between IC3301 and IC1701 and its

peripheral circuits.

YES

Is the L-ch audio signal output at pin(26),(27),(29),(30) of IC1701 NO Check IC1701 and its peripheral circuits.

normal ?

Is the R-ch audio signal output at pin(20),(21),(23)(24) of IC1701

normal ?

YES

Are the audio signal L-ch and R-ch output at (1)/(2) and (3)/(4) of P1701 normal?

YES

Check speakers and their peripheral circuits.

NO Check circuit between IC 1701 & P1701.

5 – 4

LC-32LE260M

No audio heard (2)

No external audio heard <INPUT 2> Is there the L-ch audio signal input from pin (30) of input terminal

TL511 to pin (39) of IC 3301? Is there the R-ch audio signal input from pin (26) of input terminal TL510 to pin(40) of 3301?

<INPUT 3> Is there the L-ch audio signal input from pin (20) of input terminal

TL508 to pin (35) of 3301? Is there the R-ch audio signal input from pin (15) of input terminal TL507 to pin (36 ) of IC3301?

YES

Is there the I2C signal input at pin (55), (56) of IC3301? NO Check IC3301 and its peripheral circuits.

YES

Is there audio signal input at pin(4),(10) of IC1701? NO Check connection between IC3301 and IC1701 and its periph-

eral circuits.

YES Is the L-ch audio signal output at pin(26),(27),(29),(30)of NO Check IC1701 and its peripheral circuits.

IC1701

Is the R- ch audio signal output at pin(20),(21),(23),(24) of IC1701

normal ?

YES Are the audio signal L-ch and R-ch output at (1)/(2) and (3)/(4) of

P1701 normal?

YES Check speakers and their peripheral circuits.

NO Check circuit between IC1701 & P1701 .

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