Sharp LC-32L407I Service Manual
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Sharp LC-32L407I Service Manual

Sharp LC-32L407I Service Manual

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TopPage
SAFETY PRECAUTION
PRECAUTION............................................................ i
MAJOR SERVICE PARTS ........................................iii
[1]
SPECIFICATIONS .................................................1-1
[1]
OPERATION MANUAL ..........................................2-1
[1]
DIMENSIONS ........................................................3-1
[1]
REMOVING OF MAJOR PARTS ...........................4-1
[1]
ADJUSTMENT PROCEDURE ...............................5-1
[1]
TROUBLESHOOTING TABLE...............................6-1
[1]
OVERALL WIRING DIAGRAM ..............................7-1
[2]
SYSTEM BLOCK DIAGRAM .................................7-2
CHAPTER 8. PRINTED WIRING BOARD ASSEMBLIES
[1]
MAIN Unit...............................................................8-1
[2]
POWER SUB Unit..................................................8-3
[3]
R/C, LED Unit.........................................................8-5
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
MODEL
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.
CONTENTS
No. S40F6LC32L40M
LCD COLOUR TELEVISION
LC-32L407I
[1]
[2]
MAIN Unit...............................................................9-2
[3]
POWER SUB Unit................................................9-12
[4]
R/C, LED Unit.......................................................9-16
Parts Guide
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
LC-32L407I

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  • Page 1: Table Of Contents

    TopPage LC-32L407I SERVICE MANUAL No. S40F6LC32L40M LCD COLOUR TELEVISION LC-32L407I MODEL 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.

  • Page 2: Important Service Safety

    LC-32L407I LC-32L400M 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 All checks must be repeated with the AC cord plug connection reversed.

  • Page 3: Precautions For Using Lead-Free Solder

    LC-32L407I 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: Outline

    LC-32L407I LC-32L400M OUTLINE Service Manual MAJOR SERVICE PARTS PWB UNIT Ref No. Part No. Description B3KU3L47I1 DUNTKF537FM02, MAIN Unit DUNTKF539FM02, R/C - LED Unit B3KU3L47I2 DUNTKF538FM02, POWER SUB Unit RDENC2590TPZZ INVERTER Unit OTHER UNIT Ref No. Part No. Description B3KU32L50 32”...

  • Page 5: Chapter 1. Specifications

    0°C _ 40°C Operating Temperature 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 2. Operation Manual

    LC-32L407I CHAPTER 2. OPERATION MANUAL LC-32L400M Service Manual [1] OPERATION MANUAL Part names TV (Front) OPC sensor R emote control sensor POWER indicator Light off Power off Lighted (Red) The TV is in standby mode. Lighted (Green) The TV is on.
  • Page 7 LC-32L407I Remote control unit 7 EXIT Return to the default screen. 8 Colour (Red/Green/Yellow/Blue) TELETEXT mode: Select a page. 9 POWER (STANDBY/ON) To switch the power on and off. 10 DISPLAY Display the channel or input information. 11 SLEEP Set the Sleep timer.
  • Page 8 LC-32L407I 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. Confirm the screws supplied with the TV.

  • Page 9: Chapter 3. Dimensions Dimensions

    LC-32L407I CHAPTER 3. DIMENSIONS LC-32L400M Service Manual [1] DIMENSIONS Unit: mm 3 – 1...

  • Page 10: Chapter 4. Removing Of Major Parts

    LC-32L407I CHAPTER 4. REMOVING OF MAJOR PARTS LC-32L400M Service Manual [1] REMOVING OF MAJOR PARTS 1. Removing of the Stand and Back Cover 1. Detach the Stand Hinge Cover [1]. 2. Remove the 4 lock screws [2] and detach the Stand.
  • Page 11 LC-32L407I 2. Disconnect the connectors 1. Disconnect the connectors from the MAIN Unit, POWER SUB Unit [1]. MAIN Unit POWER SUB Unit 4 – 2...
  • Page 12 LC-32L407I 3. Removing of the MAIN Unit and POWER SUB Unit 1. Remove the 2 lock shafts [1], 2 lock shafts [2], 2 lock screws [3] and detach the MAIN Unit. 2. Remove the 5 lock screws [4] and detach the POWER SUB Unit.
  • Page 13 LC-32L407I 4. Removing of the Rear Cabinet 1. Remove the 7 lock screws [1] and detach the Rear Cabinet. Rear Cabinet 4 – 4...
  • Page 14 LC-32L407I 5. Removing of the Speaker and R/C, LED Unit 1. Disconnect the connectors from the INVERTER Unit and LCD Panel Module [1]. 2. Disconnect SP connectors [2]. Remove the 4 lock screws [3] and detach the Speaker, remove the 2 Speaker rubber [3a] and 2 Molt Plane [3b].
  • Page 15 LC-32L407I 6. Removing of the Top Bracket, Bottom Bracket and LCD Panel Module 1. Remove the 4 lock screws [1]. 2. Remove the 6 lock screws [2] and detach the Top Bracket, Bottom Bracket. 3. Remove the 2 lock screws [3] and detach the LCD Panel Module.

  • Page 16: Chapter 5. Adjustment

    LC-32L407I CHAPTER 5. ADJUSTMENT LC-32L400M Service Manual [1] ADJUSTMENT PROCEDURE 1. Entering and cancel the adjustment process mode While holding down the TV/VIDEO and Volume DOWN keys at the same time, plug in the AC cord to turn on the power. (“K123” standing for inspection process mode is displayed on the middle right section of the screen.)
  • Page 17 LC-32L407I 3.1.3 Component 33K 60Hz signal adjustment (COMP-HD) Adjustment item Adjustment conditions Adjustment procedure Adjustment [Signal] Feed the COMPONENT 33K 60Hz (1080i) 100% Full-field Colour Bar signal (100% COMP 33K 60Hz (1080i) colour saturation) to INPUT 4 COMPONENT terminal. 100% Full-field Colour Bar...
  • Page 18 LC-32L407I 3.2. White balance adjustment Adjustment item Adjustment conditions Adjustment procedure Adjustment Brightness : MAX For the details of white balance adjustment procedure, please refer to white balance adjustment spec for current model. Set the luminance meter on the center of the screen 1) Confirm the set condition.
  • Page 19 LC-32L407I 5. Software upgrading 1) Plug off the LCD TV. 2) Insert the USB device to the USB terminal at the LCD TV. (Make sure that latest software is installed in the USB device) 3) Hold the LCD TV power key and plug on the LCD TV.

  • Page 20: Chapter 6. Troubleshooting Table Troubleshooting Table

    LC-32L407I CHAPTER 6. TROUBLESHOOTING TABLE LC-32L400M Service Manual [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 21 LC-32L407I With [RF] signal input No video onscreen (1) No video in the UHF/VHF reception Is there IF output from the tuner pin(12) of TU1101 as specified? Check TU1101 and its peripheral circuits. Is there VIF input at pin 57 & 58 of IC3301? Check the circuit between TU1101 &...
  • Page 22 LC-32L407I 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? Select INPUT 3 on the input select menu screen to pick up the right input signal.
  • Page 23 LC-32L407I With <Component> signal input No video onscreen (5) No external input video onscreen <INPUT 4> Is INPUT 4 selected on the input select menu screen? Select INPUT 4 on the input select menu screen to pick up the right input signal.
  • Page 24 LC-32L407I No audio heard (1) No sound in the UHF/VHF reception. Is the IF output from the tuner pin (12) of TU1101 as specified? Check TU1101 and its peripheral circuits. Is there the I2S signal input at pins (180), (181) of IC3301? Check IC3301 and its peripheral circuits.
  • Page 25 LC-32L407I No audio heard (2) No external audio heard <INPUT 2> Is there the L-ch audio signal input from pin (5) of input terminal J5510 to pin (77) of IC3301? Is there the R-ch audio signal input from pin (7) of input terminal J5510 to pin (78) of IC3301? <INPUT 3>...
  • Page 26 LC-32L407I 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 27 LC-32L407I 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 J506 (HDMI AUDIO IN) to pin (70) of IC3301?
  • Page 28 LC-32L407I No audio heard (5) No PC audio output Pin (2) of J506: Is L-ch input into the pin (70) of IC3301? Pin (3) of J506: Is R-ch input into the pin (71) of IC3301? Are I2S signal output from the pins (180), (181) of IC3301 normally? Check peripheral circuits of IC3301.

  • Page 29: Chapter 7. Overall Wiring/Block Diagram

    LC-32L407I CHAPTER 7. OVERALL WIRING/BLOCK DIAGRAM LC-32L400M Service Manual [1] OVERALL WIRING DIAGRAM 7 – 1...

  • Page 30: System Block Diagram

    LC-32L407I [2] SYSTEM BLOCK DIAGRAM 7 – 2...

  • Page 31: Main Unit

    LC-32L407I CHAPTER 8. PRINTED WIRING BOARD ASSEMBLIES LC-32L400M Service Manual [1] MAIN Unit MAIN Unit (Side-A) 8 – 1...
  • Page 32 LC-32L407I MAIN Unit (Side-B) 8 – 2...

  • Page 33: Power Sub Unit

    LC-32L407I [2] POWER SUB Unit POWER SUB Unit (Side-A) 8 – 3...
  • Page 34 LC-32L407I POWER SUB Unit (Side-B) 8 – 4...

  • Page 35: R/C, Led Unit

    LC-32L407I [3] R/C, LED Unit R/C, LED Unit (Side-A) R/C, LED Unit (Side-B) 8 – 5...

  • Page 36: Chapter 9. Schematic Diagram

    LC-32L407I CHAPTER 9. SCHEMATIC DIAGRAM LC-32L400M Service Manual [1] DESCRIPTION OF SCHEMATIC DIAGRAM 1. VOLTAGE MEASUREMENT CONDITION: 1) The voltages at test points are measured on exclusive AC adaptor and the stable supply voltage of AC 110-240V. Signals are fed by a color bar signal gen- erator for servicing purpose and the above voltages are measured with a 20k ohm/V tester.
  • Page 37 LC-32L407I [2] MAIN Unit • MAIN U n it-1/14 9 – 2...
  • Page 38 LC-32L407I • MAIN U n it-2/14 9 – 3...
  • Page 39 LC-32L407I • MAIN U n it-3/14 9 – 4...
  • Page 40 LC-32L407I • MAIN U n it-4/14 9 – 5...
  • Page 41 LC-32L407I • MAIN U n it-5/14 9 – 6...
  • Page 42 LC-32L407I • MAIN Unit-6/14 (*On this model, the MAIN Circuit Basic Diagram 7/14 is not applied.) 9 – 7...
  • Page 43 LC-32L407I • MAIN U n it-8/14 9 – 8...
  • Page 44 LC-32L407I • MAIN U n it-9/14 9 – 9...
  • Page 45 LC-32L407I • MAIN Unit-10/14 (*On this model, the MAIN Circuit Basic Diagram 11/14, 12/14, 13/14 is not applied.) 9 – 10...
  • Page 46 LC-32L407I • MAIN Unit-14/14 9 – 11...
  • Page 47 LC-32L407I [3] POWER SUB Unit • POWER SUB Unit-1/4 9 – 12...
  • Page 48 LC-32L407I • POWER SUB Unit-2/4 9 – 13...
  • Page 49 LC-32L407I • POWER SUB Unit-3/4 9 – 14...
  • Page 50 LC-32L407I • POWER SUB Unit-4/4 9 – 15...
  • Page 51 LC-32L407I [4] R/C, LED Unit 9 – 16...
  • Page 52 LC-32L407I 9 – 17...
  • Page 53 LC-32L407I PartsGuide PARTS GUIDE LCD COLOUR TELEVISION LC-32L407I MODEL Note: The reference numbers on the PWB are arranged in alphabetical order. CONTENTS CABINET AND MECHANICAL PARTS PRINTED WIRING BOARD ASSEMBLIES LCD MODULE Assembly LCD PANEL SUPPLIED ACCESSORIES DUNTKF537FM02 (MAIN Unit)
  • Page 54 LC-32L407I PRICE PARTS CODE DESCRIPTION PART RANK MARK DELIVERY [1] PRINTED WIRING BOARD ASSEMBLIES DUNTKF537FM02, MAIN Unit B3 KU 3L47 I1 DUNTKF539FM02, R/C - LED Unit DUNTKF538FM02, POWER SUB Unit B3 KU 3L47 I2 INVERTER Unit R DEN C25 90T PZZ [2] LCD PANEL 32"LCD Panel Module (R1LK315T3LW70W)
  • Page 55 LC-32L407I PRICE PARTS CODE DESCRIPTION PART RANK MARK DELIVERY [3] DUNTKF537FM02 (MAIN Unit) C3314 Capacitor, 220p 50V Ceramic V CKY CZ 1HB 221 KY C3315 Capacitor, 0.047 10V Ceramic V CKY CZ 1AB 473 KY C3316 Capacitor, 220p 50V Ceramic...
  • Page 56 LC-32L407I PRICE PARTS CODE DESCRIPTION PART RANK MARK DELIVERY [3] DUNTKF537FM02 (MAIN Unit) C9652 Capacitor R C-K ZA3 83W JZZ Y C9653 Capacitor, 0.01 25V Ceramic V CKY CZ1 EB1 03K Y C9654 Capacitor, 6800p 50V Ceramic V CKY CY1 HB6 82K Y...
  • Page 57 LC-32L407I PRICE PARTS CODE DESCRIPTION PART RANK MARK DELIVERY [3] DUNTKF537FM02 (MAIN Unit) P2701 Plug Q PLG NA 160 WJZ ZY P3301 Plug Q PLG NA 327 WJZ ZY Q501 Transistor, HN7G04FU-A(TE85L,F V SHN 7G 04F UA- 1Y Q1101 Transistor, 2SC2735JC21TL...
  • Page 58 LC-32L407I PRICE PARTS CODE DESCRIPTION PART RANK MARK DELIVERY [3] DUNTKF537FM02 (MAIN Unit) R2704 Resistor, 27k 1/16W Metal Oxide V RS- CZ1 JF2 73F Y R2705 Resistor, 68k 1/16W Metal Oxide V RS- CZ1 JF6 83F Y R2707 Resistor, 22k 1/16W Metal Oxide...
  • Page 59 LC-32L407I PRICE PARTS CODE DESCRIPTION PART RANK MARK DELIVERY [3] DUNTKF537FM02 (MAIN Unit) R3520 Resistor, 100 1/16W Metal Oxide V RS- CG 1JF 101 JY R3521 Resistor, 100 1/16W Metal Oxide V RS- CG 1JF 101 JY R3522 Resistor, 100 1/16W Metal Oxide...
  • Page 60 LC-32L407I PRICE PARTS CODE DESCRIPTION PART RANK MARK DELIVERY [4] DUNTKF538FM02 (POWER SUB Unit) C7312 Capacitor, 1 50V Electrolytic V CEA 0A1 HW1 05M + C7313 Capacitor, 4.7 50V Electrolytic V CEA 0A1 HW4 75M + C7314 Capacitor, 0.1 25V Ceramic...
  • Page 61 LC-32L407I PRICE PARTS CODE DESCRIPTION PART RANK MARK DELIVERY [4] DUNTKF538FM02 (POWER SUB Unit) R5532 Resistor, 18k 1/16W Metal Oxide V RS- CY 1JF 183 JY R5535 Resistor, 18k 1/16W Metal Oxide V RS- CY 1JF 183 JY R5537 Resistor, 75 1/4W Metal Oxide...
  • Page 62 LC-32L407I PRICE PARTS CODE DESCRIPTION PART RANK MARK DELIVERY [5] DUNTKF539FM02 (R/C, LED Unit) C104 Capacitor R C-K ZA6 16W JQZ Y C105 Capacitor, 0.01 50V Ceramic V CKY CY1 HF1 03Z Y C107 Capacitor R C-K ZA2 37W JZZ Y...

  • Page 63: Main Unit

    LC-32L407I [6] CABINET AND MECHANICAL PARTS 1-11 1-10 1-11 1-12 R/C, LED Unit MAIN Unit POWER SUB Unit 2-10 2-11 2-10 2-11 LCD Panel Module...
  • Page 64 LC-32L407I PRICE PARTS CODE PART DESCRIPTION RANK MARK DELIVERY [6] CABINET AND MECHANICAL PARTS Front Cabinet Ass'y C CAB AC5 98W J01 Front Cabinet N ot Ava Shine Trim H DEC AA0 41W J6A LED Cover H DEC QB4 91W J6A...
  • Page 65 LC-32L407I...
  • Page 66 LC-32L407I [7] LCD MODULE Assembly...
  • Page 67 LC-32L407I PRICE PARTS CODE PART DESCRIPTION RANK MARK DELIVERY [7] LCD MODULE Assembly 32"LCD Panel Module (R1LK315T3LA5BX) B 3KU 32 L50 Bezel Ass'y (Top) C ANG K4 434 TP0 1 Bezel Ass'y (Bottom) C ANG K4 327 TP0 1 Bezel Ass'y (L/R), x2...
  • Page 68 LC-32L407I [9] PACKING PARTS (NOT REPLACEMENT ITEM) PRICE PARTS CODE DESCRIPTION PART RANK MARK DELIVERY [9] PACKING PARTS (NOT REPLACEMENT ITEM) Packing Case SPAKCF773WJZZ Wrapping Paper SPAKPB579WJZZ Mirror Mat Base SPAKPB514WJ4Z Packing Add. (Top) SPAKXD036WJZZ Packing Add. (Bottom) SPAKXD036WJZZ Polyethylene Bag...
  • Page 69 LC-32L407I MEMO © COPYRIGHT XXXX BYSHARP CORPORATION ALL RIGHTS RESERVED. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher.
  • Page 70 No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher. PT. SHARP ELECTRONICS INDONESIA TV Engineering Dept. Jakarta , Indonesia July, 2010...

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