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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.
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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 •...
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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...
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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.
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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.
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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...
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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.
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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...
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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.
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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).
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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 –...
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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-...
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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...
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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.