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Sharp LC-32LE250M Service Manual
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Sharp LC-32LE250M Service Manual

Sharp LC-32LE250M Service Manual

Lcd colour television
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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.
IMPORTANT SERVICE SAFETY
[1] OUTLINE...........................................1-1
[1] SPECIFICATION.................................2-1
[1] OPERATION MANUAL........................3-1
[1] DIMENSIONS......................................4-1
CHAPTER 5. REMOVING OF MAJOR PARTS
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.

SERVICE MANUAL

LCD COLOUR TELEVISION
MODEL : LC-32LE250M
CONTENTS
[1] ADJUSTMENT....................................6-1
[1]
TROUBLESHOOTING TABLE .........................7-1
CHAPTER 8. OVERALL WIRING/BLOCK DIAGRAM
[1]
SYSTEM BLOCK DIAGRAM............................8-1
CHAPTER 10. SCHEMATIC DIAGRAM
[1] DESCRIPTION OF SCHEMATIC
DIAGRAM ...........................................10-1
1st Addition
No.SZ12M1032LE250M
.............................................9-1
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.

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  • Page 1: Table Of Contents

    SERVICE MANUAL No.SZ12M1032LE250M LCD COLOUR TELEVISION MODEL : LC-32LE250M 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.

  • Page 2: Safety Precaution

    LC-32LE250M SAFETY PRECAUTION SAFETY PRECAUTIONSAFETY PRECAUTIONSAFETY PRECAUTION LC32LE240M 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 All checks must be repeated with the AC cord plug connection reversed.

  • Page 3: Precaution For Using Lead-Free Solder

    LC-32LE250M 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.

  • Page 4: Chapter 1. Outline

    LC-32LE250M CHAPTER 1. OUTLINE [1] OUTLINE MAJOR SERVICE PARTS PWB UNIT Ref No. Part No. Description DKEYMG247FM01 MAIN Unit ( ASIA ) MAIN Unit ( SPC ) DKEYMG247FM02 POWER Unit RDENCA462WJPZ DUNTKG238FM01 LED IR Unit RUNTKB129WJZZ LED PWB A RUNTKB130WJZZ...

  • Page 5: Chapter 2. Specifications

    Operating Temperature 0°C — 40°C As a part of policy of continuous improvement, SHARP reserves the right to make design and specification changes for product improvement without prior notice. The performance specification figures indicated are nominal values of production units. There may be some deviations from these values in individual units.

  • Page 6: Chapter 3.Operation Manual

    LC-32LE250M CHAPTER 3. OPERATION MANUAL [1] OPERATION MANUAL Part names TV (Front) Remote control sensor POWER indicator Light off Power off. Lighted (Red) The TV is in standby mode. Lighted (Green) The TV is on. TV (Rear) 1 POWER (On/Off) button...

  • Page 7: Remote Control Unit

    LC-32LE250M Remote control unit 7 AV MODE Select an audio and video setting. 8 VOL k /VOL l Set the volume. (VOL k ) Increase the volume. (VOL l ) Decrease the volume. 9 e (Mute) Press e s Mutes sound.
  • Page 8 LC-32LE250M Attaching the stand • Before attaching (or detaching) the stand, unplug the AC cord from the AC outlet. • Before performing work spread cushioning over the base area to lay the TV on. This will prevent it from being damaged.

  • Page 9: Chapter 4. Dimensions

    LC-32LE250M CHAPTER 4. DIMENSIONS [1] DIMENSIONS 4 – 1...

  • Page 10: Removing Of Major Parts

    LC-32LE250M CHAPTER 5. REMOVING OF MAJOR PARTS [1] REMOVING OF MAJOR PARTS 1. Remo ving of the Rear Cab in et Ass ’y a nd S tand assembly. 1. R emove the 4 scr ews and detach the S ta nd assembly 2 .
  • Page 11 LC-32LE250M 2. Removing of the Bottom Bracket and speaker L/R 1. Remove 4 screw bottom bracket 2, Disconnect SP wayer & remove speaker from L / R panel bosses 3. Remove 1 screw from front angle L/R & remove front angle 4.
  • Page 12 LC-32LE250M 3. Removing of the LCD Panel Module 1. Detech the 10 lock hook refer figure 1. 2, and detech the LCD Module Rear Cabinet Ass'y Hook Hook Hook Hook Hook Hook Hook Hook Hook Hook Figure 1 KS-Bezel Cab-A...

  • Page 13: Chapter 6. Adjustment

    LC-32LE250M CHAPTER 6. ADJUSTMENT [1] ADJUSTMENT [1] ADJUSTMENT PROCEDURE 1. Entering and cancel the adjustment process mode 1) While holding down the TV/VIDEO and Volume DOWN keys at the same time, plug in the AC cord to turn on the power. (“K” standing for inspec- tion process mode is displayed on the upper left position of the screen.)
  • Page 14 LC-32LE250M 6) Let the process running & entering verification. Do not power off Verifying ......Verify Pass 7) Software is successfully installed when the following appears at the end of the process. Please re-boot the system Update Finished 8) Plug off the LCD TV and plug ON again as usual.
  • Page 15 LC-32LE250M b) Component 15K 50Hz Signal Adjustment (COMP-SD) ITEM CONDITION PROCEDURE • Setting [Signal] Feed the COMPONENT 15K 50Hz (576i) 100% Full-field COMP 15K 50Hz Colour Bar signal(100% colour saturation) to (576i) COMPONENT INPUT 100% Full-field Colour [Terminal] • •...
  • Page 16 LC-32LE250M B. WHITE BALANCE ADJUSTMENT a) White Balance Adjustment ITEM CONDITION PROCEDURE Setting Backlight : MAX For the details of white balance adjustment procedure, please refer to white AV Mode : DYNAMIC balance adjustment spec for Kameyama model. Active Backlight : OFF 1.
  • Page 17 LC-32LE250M [Adjustment value] • Teaching set send by engineering dept is set as reference. [Reference values for adjustment reference] Equipment Luminance meter [Minolta CA-210] Spec Adjustment Inspection Level Data Spec. Spec. Point 2 x=0.272 ref. • 0.0010 • 0.0020 y=0.277...

  • Page 18: Chapter 7. Troubleshooting Table Troubleshooting Table

    LC-32LE250M CHAPTER 7. TROUBLESHOOTING TABLE [1] 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? Reconnect the AC cord tightly and turn on the power again.
  • Page 19 LC-32LE250M 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? Check TU1101 and its peripheral circuits. Is there VIF input at pin 38 & 39 of IC3301? Check the circuit between TU1101 &...
  • Page 20 LC-32LE250M 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? Select INPUT 2 on the input select menu screen to pick up the right input signal.
  • Page 21 LC-32LE250M No audio heard (1) No sound in the UHF/VHF reception. Is the IF output from the tuner pin (8) of TU1101 as specified? Check TU1101 and its peripheral circuits. Is there the I2C signal input at pins (42), (43) of IC3301? Check IC3301 and its peripheral circuits.
  • Page 22 LC-32LE250M No audio heard (2) No external audio heard <INPUT 2> Is there the L-ch audio signal input from pin (30) of input terminal TL563 to pin (26) of IC 3301? Is there the R-ch audio signal input from pin (26) of input terminal TL563 to pin(27) of 3301? <INPUT 3>...
  • Page 23 LC-32LE250M No audio heard (3) No HDMI sound heard. <INPUT 1> (*INPUT 1 is digital audio.) Does the HDMI image appear onscreen? Refer to “<INPUT 1> in No external input video onscreen (HDMI)”. No audio output from <INPUT 1> Check the EDID.
  • Page 24 LC-32LE250M No audio heard (4) No sound from the HDMI sound input terminal. (INPUT 1 analog audio) Is there the L-ch audio signal input from pin (2) of external input terminal J501 (HDMI AUDIO IN) to pin (28) of IC3301?

  • Page 25: System Block Diagram

    LC-32LE250M CHAPTER 8. OVERALL WIRING BLOCK DIAGRAM [1] SYSTEM BLOCK DIAGRAM POWER UNIT 2pin LED1_A LED1_K LED BAR CN1 (2pin) LED1_A LED1_K 8 – 1...

  • Page 26: Chapter 9. Printed Wiring Board Assemblies

    LC-32LE250M CHAPTER 9. PRINTED WIRING BOARD ASSEMBLIES [1] MAIN Unit / LED PWB Main Unit ( Side-A ) 9 – 1...
  • Page 27 LC-32LE250M 9 – 2...
  • Page 28 LC-32LE250M LED A -Chip LED A -Symbol 9 – 3...
  • Page 29 LC-32LE250M LED B -Chip 9 – 4...
  • Page 30 LC-32LE250M CHAPTER 10. SCHEMATIC DIA- GRAM [1] DESCRIPTION OF SCHEMATIC DIA- GRAM 10 – 1...
  • Page 31 LC-32LE250M 10 – 2...
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  • Page 53: Main Unit

    1st Addition PartsGuide PARTS GUIDE No. SZ12M1032LE250M LCD COLOUR TELEVISION LC-32LE250M MODEL CONTENTS PRINTED WIRING BOARD CABINET AND MECHNICAL ASSEMBLIES PARTS LCD PANEL LCD PANEL MAIN UNIT ( DKEYMG247FM01/ SUPPLIED ACCESSORIES PACKING PARTS ( NOT REPLACE- MENT ITEM ) Parts marked with "...
  • Page 54 LC-32LE250M PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [1] PRINTED WIRING BOARD ASSEMBLIES DKEYMG247FM01 MAIN UNIT (ASIA) DKEYMG247FM02 MAIN UNIT (SPC) [2] LCD PANEL R1LK315T3HB60W LCD PANEL 32" [3] MAIN UNIT ( DKEYMG247FM01/ 02) P1702 QPLGNA961WJZZY P9601 QPLGNB098WJZZY P101...
  • Page 55 LC-32LE250M PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [3] MAIN UNIT ( DKEYMG247FM01/ 02) IC3301 RH-IXD465WJQZQ C1104 VCCCCY1HH220JY Capacitor 22p 50V Ceramic C1108 VCCCCY1HH220JY Capacitor 22p 50V Ceramic C3357 VCCCCZ1HH100DY Capacitor C3351 VCCCCZ1HH101JY Capacitor 100p 50V Ceramic C3352 VCCCCZ1HH101JY...
  • Page 56 LC-32LE250M PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [3] MAIN UNIT ( DKEYMG247FM01/ 02) D9601 VHDCRS10I30-1Y Diode D9602 VHDCRS10I30-1Y Diode D1510 VHDDB2S310L-1Y Diode D1516 VHDDB2S310L-1Y Diode D3301 VHDDB2S310L-1Y Diode IC9608 VHI3464A25N-1Y IC MM3464A25NRE IC9606 IC MM3479A18PRE VHI3479A18P-1Y IC9501 IC MM3479A50PRE...
  • Page 57 J502 Jack QJAKZA133WJZZ J9501 Jack QSOCZA330WJQZ TU1101 Tuner RTUNQA073WJQZ [4] CABINET AND MECHNICAL PARTS CCABBC185WJ01 REAR CABINET ASSEMBLY (LC-32LE250M) GCABBC185WJ4A REAR CABINET (LC-32LE250M) JBTN-A960WJ4B CONTROL BUTTON LANGKD438WJ4W VESA ANGLE (X2) FOR VESA ANGLE (X2) XEBS930P08000 SPACER (x15) PSPAHC407WJ00 SPACER (x5)
  • Page 58 LVDS WIRE (FOR LC-32LE250M ONLY) QCNW-N179WJQZ PD WIRE QCNW-N180WJQZ L1 WIRE RSP-ZA633WJPZ SPEAKER (L/R) XBPS730P06WS0 SCREW FOR ANGLE (X13) (FOR LC-32LE250M ONLY) XBPS730P06WS0 SCREW FOR ANGLE (X14) (FOR LC-32LE250M ONLY) CCABAC983WJ01 FRONT CABINET ASSEMBLY (LC-32LE250M) GCABAC983WJ4A FRONT CABINET (LC-32LE250M) HDECQB802WJ4A...

  • Page 59: Stand Unit

    PART PARTS CODE DESCRIPTION RANK MARK RANK [6] SUPPLIED ACCESSORIES RRMCGB071WJSA R/C GUN ( LC-32LE250M ) NOT AVAILABLE BATTERY (X2) OPERATION MANUAL (250M FOR INDONESIA/VIETNAM/THAIL TINS-F746WJZZ OPERATION MANUAL (250M FOR ASIA ) TINS-F747WJZZ OPERATION MANUAL (250M FOR ASIA/MIDDLE EAST) TINS-F748WJZZ...
  • Page 60 [7] PACKING PARTS ( NOT REPLACEMENT ITEM ) PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [7] PACKING PARTS ( NOT REPLACEMENT ITEM ) SPAKCH070WJZZ PACKING CASE (LC-32LE250M)except INDONESIA SPAKCH083WJZZ PACKING CASE (LC-LE250M) INDONESIA SPAKPB924WJZZ HOSO-PP SPAKXD903WJZZ P-AD TOP SPAKXD904WJZZ P-AD BOTTOM SPAKPB925WJZZ...
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  • Page 64 EndPage © COPYRIGHT 2012 BY SHARP CORPORATION COPYRIGHT XXXX BYSHARP CORPORATION ALL RIGHTS RESERVED. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in © COPYRIGHT XXXX BYSHARP CORPORATION any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher.

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