There may be a problem about power supply. Check 12V_VCC, 5V_VCC and 3V3_VCC with a voltage-meter. Also there
may be a problem about SW. Try to update TV with latest SW. Additionally it is goood to check SW printouts via
hyper-terminal (or Teraterm). These printouts may give a clue about the problem.
25.10 DVD problems
Problem: DVD is not working.
Check that DVD source is selected in Service menu. Check supply voltage of DVD
namely 12V_VCC.
25.11 No signal problem
Problem: No signal in TV mode.
Check tuner supply voltage; 3V3_TUN. Check tuner options are correctly set in Service menu. Check AGC voltage at
IF_AGC pin of tuner.
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