Samsung GH17LS 8 Block Diagram

GH17LS/GH17ES 8-1

8 Block Diagram

ANALOG

Scaller + ADC

LCD

Panel I/F

CLOCK

MCU

Setup Data & User I/F

User Key

Jag - ASM

Back Light Control

Power Sequence Control

Contents

Main TFT-LCD MONITOR GH17LS GH17ES Manual SERVICE TFT-LCD MONITOR CONTENTS Page Page GH17LS/GH17ES 1-1 1-1-1 Warnings 1-1-2 Servicing the LCD Monitor 1-1-3 Fire and Shock Hazard 1 Precautions 1-1 Safety Precautions 1-2-1 General Servicing Precautions 1 Precautions 1-2 GH17LS/GH17ES 1-3 Electrostatically Sensitive Devices (ESD) Precautions 1-2 Servicing Precautions 2 Product Specifications 2-1 Specifications 2-2 Pin Assignments 2-3 Timing Chart Page 3-1-1 Removing the Stand 3-1-2 Main Body Disassembly 3 Disassembly and Reassembly 3-1 Disassembly Page 4-1 Required Equipment 4-2 RS232 Jig Setup 4-3 Changing Board 4-4 Program memory (IC110) change 4 Alignments and Adjustments Page 5 Troubleshooting 5-1-1 No Power 5-1-2 No Power 5-2 No Video WAVEFORMS Page Page GH17LS/GH17ES 7-1 7 Electrical Parts List 7-1 Main PCB Parts 7-2 GH17LS/GH17ES GH17LS/GH17ES 7-3 7-4 GH17LS/GH17ES GH17LS/GH17ES 7-5 7-6 GH17LS/GH17ES GH17LS/GH17ES 7-7 7-8 GH17LS/GH17ES 7-2 Others Page 8 Block Diagram Page Page Page GH17LS/GH17ES 10-1 10 Schematic Diagrams SELFRAST_D_SUB H*V_SYNC MCAD(1) MCAD(0) Page 10 Schematic Diagrams GH17LS/GH17ES 10-3 MCA(9) MCA(8) 10-2 Main Part Schematic Diagram 2.5VJA1 2.5VJP 2.5VJF +2.5V Page 11 Panel Description