LG Electronics LD84A

MEMO

Only for training and service purposes

Contents

Main CONTENTS SAFETY PRECAUTIONS General Guidance AC Volt-meter Before returning the receiver to the customer, Leakage Current Cold Check(Antenna Cold Check) SERVICING PRECAUTIONS Page SPECIFICATION 4. Module general specification 1. Application range 2. Requirement for Test 3. Test method 5. Model general specification 7. RGB PC INPUT Mode 6. Component V ideo Input (Y , P 9. HDMI PC 8. HDMI DTV ADJUSTMENT INSTRUCTION 1. Application Range 2. Designation 3. Main PCB check process * Download 3.1. ADC Process (1) PC input ADC (2) COMPONENT input ADC 3.2. Function Check (1) Check display and sound 4. Total Assembly line process 4.1. Adjustment Preparation 4.2. DPM operation confirmation 4.3 DDC EDID Write (RGB 128Byte ) 4.4. DDC EDID Write (HDMI 256Byte) 4.7. HDCP SETTING (Scaler : Mstar) 4.11 Outgoing condition Configuration 4.12 Internal pressure TROUBLESHOOTING 1. No Power 2. No Raster 3. Unusual display from TV/CATV mode 4. Unusual display from DTV mode 5. Unusual display from AV1/AV2(SCART) mode - CVBS Input - RGB Input 6. Unusual display from AV3(SIDE AV) mode - CVBS Input 7. Unusual display from Component mode 8. Unusual display from RGB mode 9. Unusual display from HDMI 1/2/3 mode 10. No Sound BLOCK DIAGRAM 4MB (IC102) Flash Memory I/O Expander Saturn3+ LCD Panel (P800) DDR Memory 256Mb (IC300) HDMI Switch (IC902) Page EXPLODED VIEW