2
TABLE OF CONTENTS Page
1 Safety Precaution ------------------------------------------------------------------------------------------------ 3
1.1. General Guidelines ---------------------------------------------------------------------------------------- 3
2 Warning ------------------------------------------------------------------------------------------------------------- 4
2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensitive(ES) Devices 4
2.2. About lead free solder (PbF) ---------------------------------------------------------------------------- 5
3 Service Navigation ----------------------------------------------------------------------------------------------- 6
3.1. Service Hint -------------------------------------------------------------------------------------------------- 6
3.2. Applicable signals ------------------------------------------------------------------------------------------ 7
4 Specifications ----------------------------------------------------------------------------------------------------- 8
5 Troubleshooting Guide ----------------------------------------------------------------------------------------- 9
5.1 No Power ----------------------------------------------------------------------------------------------------- 9
5.2 Abnormal Display ------------------------------------------------------------------------------------------ 10
5.3 No Display --------------------------------------------------------------------------------------------------- 11
5.4 Sound Problem --------------------------------------------------------------------------------------------- 12
5.5 Remote Control Malfunction ---------------------------------------------------------------------------- 13
6 Disassembly and Assembly Instructions --------------------------------------------------------------- 14
7 Block Diagram ---------------------------------------------------------------------------------------------------- 18
8 Schematic Diagram --------------------------------------------------------------------------------------------- 19
8.1 Main Board -------------------------------------------------------------------------------------------------- 19
8.2 Power Board ------------------------------------------------------------------------------------------------ 29
8.3 Key Board ---------------------------------------------------------------------------------------------------- 32
8.4 IR Board ------------------------------------------------------------------------------------------------------ 33
9 Wiring Connection Diagram --------------------------------------------------------------------------------- 34
9.1. Caution Statement -------------------------------------------------------------------------------------- 34
9.2. Wiring -------------------------------------------------------------------------------------------------------- 34
10 Exploded View and Replacement Parts List ---------------------------------------------------------- 35
10.1. Exploded View ------------------------------------------------------------------------------------------ 35
10.2. Replacement Parts List -------------------------------------------------------------------------------- 36