Service Manual
Page 7
TROUBLE SHOOTING FLOW CHART (3) Power on NG No Power No back light Key NG Check AC Cord Check the wire form Power Supply to Main Boar Check Power Supply Check Power Supply Check Main Board ( check Q10,Q13 ) Check front panel Check CONTROL Board Remote controller NG No Work Function issue Invalidity Check CONTROL Board Check Main Board ( U24 ) Check Remote controller Check CONTROL Board Check battery Power LED NG Automatic on/off CONTROL Board POWER LED NG Check Wire Check Power Supply Check Main Board 5
TROUBLE SHOOTING FLOW CHART (3) Power on NG No Power No back light Key NG Check AC Cord Check the wire form Power Supply to Main Boar Check Power Supply Check Power Supply Check Main Board ( check Q10,Q13 ) Check front panel Check CONTROL Board Remote controller NG No Work Function issue Invalidity Check CONTROL Board Check Main Board ( U24 ) Check Remote controller Check CONTROL Board Check battery Power LED NG Automatic on/off CONTROL Board POWER LED NG Check Wire Check Power Supply Check Main Board 5