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CHAPTER 1. OUTLINE OF THE PRODUCT,
CHAPTER 2. CONNECTION, ADJUSTMENT,
CHAPTER 3. DISASSEMBLY AND ASSEMBLY . . . . . . . . . . . . . . . . . . . .3 - 1
CHAPTER 4. BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 - 1
CHAPTER 5. TROUBLE SHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 1
CHAPTER 6. CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 - 1
CHAPTER 7. PWB LAYOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 - 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.
SERVICE MANUAL
MODEL
CONTENTS
NOMENCLATURE AND FUNCTION . . . . . . . . . . . . . . . . . .1 - 1
OPERATION, AND FUNCTIONS. . . . . . . . . . . . . . . . . . . . .2 - 1
Product Name
Model Name
For USA
LL-T19D1H
LL-T19D1U
LL-T19D1B
LL-T19D1Y
SHARP CORPORATION
CODE : 00Z
LCD MONITOR
LL-T19D1-H
LL-T19D1-B
Color
For Other
LL-T19D1E
Gray
LL-T19D1P
Black
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
LLT19D1SME

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Summary of Contents for Sharp LL-T19D1-H

  • Page 1 SERVICE MANUAL CODE : 00Z LLT19D1SME LCD MONITOR LL-T19D1-H LL-T19D1-B MODEL CONTENTS CHAPTER 1. OUTLINE OF THE PRODUCT, NOMENCLATURE AND FUNCTION ....1 - 1 CHAPTER 2.
  • Page 2 CHAPTER 1. OUTLINE OF THE PRODUCT, NOMENCLATURE AND FUNCTION 1. SPECIFICATIONS Product specifications Dimensions (Units: mm) • Model name LL-T19D1-H (Frosty gray)/LL-T19D1-B (Black) • LCD display 48 cm measured diagonally TFT LCD module • Resolution (max.) SXGA 1280 x 1024 pixels •...
  • Page 3 Relevant signal timings (digital) The DVI-D input connector pin Display mode Hsync Vsync (DVI-D connector with 24 pins) frequency VESA 640 x 480 31.5kHz 60Hz 25.175MHz 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 37.9kHz 72Hz 31.5MHz...
  • Page 4 2. PRODUCT DESCRIPTION Height adjustment, angle adjustment Caution: • Pressure from hands on the LCD panel could cause damage. • Do not attempt to move the monitor beyond its movement range. Applying excessive force to move the monitor may damage the product.
  • Page 5 CHAPTER 2. CONNECTION, ADJUSTMENT, OPERATION, AND FUNCTIONS 1. CONNECTION Caution: • When connecting, ensure that both the monitor and computer are switched off. • Be careful not to overly bend the cable or add extension cords as this could lead to a malfunction. 1-1.
  • Page 6 1-3. Turning the power on 1-4. Changing between input terminals 1. Turn on the main power of the monitor. Use the INPUT button to switch between signal input terminals. Analog RGB input terminal 1 Main power switch INPUT-1 ANALOG INPUT INPUT Analog RGB input terminal 2 DVI-D input terminal...
  • Page 7 1-6. Instructions for attaching a VESA compliant arm An arm or stand based on the VESA standard (commercially available) 5. Remove the six screws and then remove the stand from the moni- can be attached to the monitor. tor. Procurement of the arm or stand is at the customer's discretion. Arms or stands able to be used Attachments must satisfy the following.
  • Page 8 2. ADJUSTMENT 2-1. ADJUSTMENT METHOD 1) Resetting all adjustment values Power ON MENU /MODE Press the above two buttons at same time, and while turn the power on. 2) ADJUSTMENT menu reset Press the two buttons at same time. MENU 3) Adjustment lock function MENU Power ON...
  • Page 9 2-2. ADJUSTMENT ITEM LIST BUTTON ITEM ADJUSTMENT DESCRIPTION MENU MENU 1: MANUAL CLOCK 0~255 CLOCK: Adjust so that vertical flicker noise is not emit- ADJUSTMENT ted. (e d buttons) PHASE 0~32 PHASE: Adjust so that horizontal flicker noise is not emitted.
  • Page 10 CHAPTER 3. DISASSEMBLY AND ASSEMBLY 1. STAND UNIT REMOVAL 3) Remove the connector and flat cable. 4) Remove the hex. screws, washer and screws, and remove the I/F 1) Remove the rear cover by sliding it upward. PWB by sliding it upward. 2) Remove the screws, and remove the stand unit (B).
  • Page 11 CHAPTER 4. BLOCK DIAGRAM LCD UNIT LAMP POWER /INVERTER LCD SIGNAL INPUT 19 inc h LC D UNIT AC SW LAMP I NPUT1 ANALOG I NPUT2 ANALOG I NTERFACE KEY_ SWI TCH UNIT UNIT I NPUT3 DIGITAL LL-T19D1 BLOCK DIAGRAM 4 –...
  • Page 12 CONNECTOR SIGNAL TABLE Connector CN601 Connector CN100 GREEN +12V BLUE +12V +12V BLK_ON/OFF BRIGHTNESS H-SYNC Connector CN300 V-SYNC INPUT Connector CN602 LED_GREEN LED_AMBER GREEN POWER BLUE RIGHT LEFT MODE MENU Connector CN500 ATX0- ATX0+ ATX1- H-SYNC ATX1+ V-SYNC ATX2- ATX2+ Connector CN603 ACLKT- RX2-...
  • Page 13 CHAPTER 5. TROUBLE SHOOTING No power supply Does LED turns on in green when power switch is turned Backlight turns ON? Check whether the unit is in power save LED turns on in orange? mode (synchronizing signal is not input.). 1) PC is turned off? 2) RGB/DVI cable is disconnected? 3) Synchronizing signal is output from RGB...
  • Page 14 Screen does not operate normally. Defective Replace RGB/DVI cable Check RGB/DVI cable. with a new one. Check screen condition by changing display modes. Operate the "ALL RESET" to check if screen condition changes. (Press and hold MENU and c/MODE buttons while turning on power switch.) Screen stays in black.
  • Page 15 LL-T19D1 CIRCUIT DIAGRAM 6 – 1...
  • Page 16 LL-T19D1 CIRCUIT DIAGRAM 6 – 2...
  • Page 17 LL-T19D1 CIRCUIT DIAGRAM 6 – 3...
  • Page 18 LL-T19D1 CIRCUIT DIAGRAM 6 – 4...
  • Page 19 LL-T19D1 CIRCUIT DIAGRAM 6 – 5...
  • Page 20 LL-T19D1 CIRCUIT DIAGRAM 6 – 6...
  • Page 21 LL-T19D1 CIRCUIT DIAGRAM 6 – 7...
  • Page 22 LL-T19D1 CIRCUIT DIAGRAM 6 – 8...
  • Page 23 LL-T19D1 CIRCUIT DIAGRAM 6 – 9...
  • Page 24 CHAPTER 7. PWB LAYOUT MAIN PWB A side B side LL-T19D1 PWB LAYOUT 6 – 1...
  • Page 25 POWER SUPPLY PWB A side B side LL-T19D1 PWB LAYOUT 6 – 2...

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