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Sharp LL-T15S1 Service Manual
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Sharp LL-T15S1 Service Manual

Sharp LL-T15S1 Service Manual

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Download this manual See also: Operating Manual
CHAPTER 1. OUTLINE OF THE PRODUCT,
CHAPTER 2. CONNECTION, ADJUSTMENT,
CHAPTER 3. DISASSEMBLY AND ASSEMBLY ........................................... 11
CHAPTER 4. BLOCK DIAGRAM ................................................................... 13
CHAPTER 5. TROUBLESHOOTING ............................................................. 15
CHAPTER 6. CIRCUIT DIAGRAM ................................................................. 18
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

CONTENTS
NOMENCLATURE AND FUNCTION ......................................... 1
OPERATION AND FUNCTIONS ............................................... 4
SHARP CORPORATION

LCD COLOR MONITOR

LL-T15S1
MODEL
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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Summary of Contents for Sharp LL-T15S1

  • Page 1: Service Manual

    SERVICE MANUAL LCD COLOR MONITOR LL-T15S1 MODEL CONTENTS CHAPTER 1. OUTLINE OF THE PRODUCT, NOMENCLATURE AND FUNCTION ......... 1 CHAPTER 2. CONNECTION, ADJUSTMENT, OPERATION AND FUNCTIONS ..........4 CHAPTER 3. DISASSEMBLY AND ASSEMBLY ........... 11 CHAPTER 4. BLOCK DIAGRAM ..............13 CHAPTER 5.

  • Page 2: Specifications

    Symbol/PartsCod) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - CHAPTER 1.

  • Page 3: Product Description

    nThe connector pin 2. PRODUCT DESCRIPTION Left side Rear view Front View surface Mini D-sub connector with 15 pins Number Function Red video signal input Green video signal input Blue video signal input N.C. N.C. For red video signal GND MENU button This button is used to pop-up, select and close the OSD Menu.
  • Page 4 Standing up and adjusting the monitor CAUTION! Be sure to hold the frame of monitor only. Pressure from hands on the LCD panel could cause damage. Standing up the monitor Press down on the stand and lift up the top section of the monitor. Adjusting the monitor Lightly holding both sides of the monitor, adjust it to a suitable viewing angle.
  • Page 5 2. Attach the power cord to the AC adapter and place the power plug into the AC terminal PC (Microphone terminal) PC (Audio output terminal) Audio cable Note: Do only connect cables less than 3m to the LL-T15S1. Power cord...
  • Page 6 you can select the driver you want.], then click [Next]. 2. POWER ON/OFF When [Models] is displayed, click on [Have Disk], confirm that [Copy manufacturer’s files from:] is [A:], and click [OK]. 2-1. Turning the power on Confirm that the monitor details are selected, then click [Next], 1.

  • Page 7: Adjusting The Screen Display

    For WindowsMe 3. ADJUSTING THE SCREEN DISPLAY Installing monitor set-up information into WindowsMe. If necessary, the screen can be adjusted as follows. If the "Add New Hardware Wizard" has appeared: Automatic screen adjustment (This explanation assumes that the floppy disk drive is "A drive") The clock, phase, H-POS (horizontal positioning) and V-POS (vertical Place the Monitor Settings Adjustment Disk (provided) into the positioning) functions can be adjusted automatically.
  • Page 8 If your computer’s display mode is set to 65K colors, you 3-1. Automatic screen adjustment may see the different color levels in each color pattern or Options in MENU 1 (ADJUSTMENT) can be adjusted automatically the gray scale may look colored. (This is due to the specifi- (CLOCK, PHASE, H-POS, V-POS).
  • Page 9 PHASE 3-3. Manual screen adjustment The figure below demonstrates how to adjust so that horizontal flicker Fine adjustments can be made using On Screen Display (OSD) Menu noise is not emitted. ( buttons) provided. Note: Adjustments to PHASE should be made only after CLOCK has Display an image that makes the entire screen very bright.
  • Page 10 BLACK LEVEL MENU 4: MODE SELECT Total screen brightness can be adjusted while watching the color pattern. ( buttons) S CAL I NG Color pattern 8 H z Notes: Depending on the resolution of the input signal, even if menu options can be selected, the display may not change. CONTRAST To choose a menu option: SELECT button...

  • Page 11: Instructions For Installing A Vesa Compliant Arm

    4. INSTRUCTIONS FOR INSTALLING A VESA COMPLIANT ARM An arm based on the VESA standard can be attached to the monitor. Attach the arm to the monitor with four screws. The arm must be purchased separately. When choosing the arm to be installed please take note of the follow- ing points.
  • Page 12 CHAPTER 3. DISASSEMBLY AND REASSEMBLY [1] REMOVING HINGE COVER [3] REMOVING LCD MODULE (LCD + I/F board) 1. Pull and remove the hinge cover in the direction indicated by the arrow. 1. Remove the 3 screws . Lift the rear panel (pay attention to the latch) in the direction indicated by the arrow and remove the connector...
  • Page 13 [4] DISASSEMBLING THE REAR PANEL 1. Figure A: Remove the 6 screws and connector . Remove the I/F board cover. Remove the 4 screws and 6 connectors . Remove the I/F board. Figure B: Remove the 2 screws and remove the connectors .
  • Page 14 CHAPTER 4. BLOCK DIAGRAM 2.5W Speaker*2 WIRE BD PA NEL (DH10) D-SUB 15 Interface Inverter Pin cable BD (2 CCFL) Earphone OUT, M IC IN Phone jack Key control Sensor Power Jack 12V IN, Audio IN, MIC OUT 12V OUT Power Adaptor INPUT...
  • Page 15 JP2 (Power Supply Input Terminal From AC ADAPTER) Pin No. Symbol Function BLUE Odd pixel data signal (LSB) Used connector : POWER_JACK20_B BLUE Pin No. Symbol Function BLUE BLUE +12V +12V supply from AC ADAPTER BLUE BLUE (MSB) J1(Signal Input Terminal) REV1 (GND) Used connector : PH12P...
  • Page 16 CHAPTER 5. TROUBLESHOOTING No power supply Does LED turns on in green when power switch is turned * Check LED for breakage. LED turns on in red? * Check the path between JP2 (9pin) and U11(27pin). * Check cable for disconnection. Replace any unit (main PWB, SW PWB, cable Power jack) which shows any defect, with a new Backlight turns ON?
  • Page 17 Screen does not operate normally. Defective Replace RGB cable with Check RGB cable. a new one. Check screen condition by changing display modes. Reset the microprocessor to check if screen condition changes. (Press and hold MENU and SELECT buttons while turning on power switch.) Screen stays in black.
  • Page 18 <Voice output error> • Check connection of JP1 connector. +12 V DC at 1st and 2nd pins of JP1? • Check fuse F1 of Power Jack PWB. Signal input of 4th pin of U12 is at H level Check mute input circuit of I/F board. (+5 V DC)? Check power supply, vo ice input and voice Input signal of 3rd and 5th pins of U12 is normal?
  • Page 28 COPYRIGHT 2001 BY SHARP CORPORATION All rights reserved. Printed in Japan. 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.