Service Manual
Page 4
... ...160Degree Viewing Angles Vertical ...140Degree TV Tuning Compatible ...NTSC 181 Channels Special Features: ...MTS ...Sleep Timer ...4H comb filter ...Deinterlace ...V-chip ...Closed Caption ...Full function remote control Input Terminals: ...Antenna ...AV1 ...S-VIDEO1 ...Component Power Consumption ...90W (MAX) Power Supply ...100~240 VAC at 1.5A Operation Temperature ...0oC ~45oC Storage Temperature ...From -10oC...
... ...160Degree Viewing Angles Vertical ...140Degree TV Tuning Compatible ...NTSC 181 Channels Special Features: ...MTS ...Sleep Timer ...4H comb filter ...Deinterlace ...V-chip ...Closed Caption ...Full function remote control Input Terminals: ...Antenna ...AV1 ...S-VIDEO1 ...Component Power Consumption ...90W (MAX) Power Supply ...100~240 VAC at 1.5A Operation Temperature ...0oC ~45oC Storage Temperature ...From -10oC...
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
Service Manual
Page 25
CONTROL BOARD CIRCUIT 23 CN301 AD1 AD2 1 2 IR 3 4 BK5V STANDBY SDA_1 SCL_1 5 6 7 8 9 10 AD1 AD2 IR GND BK5V STANDBY SDA_1 SCL_1 GND1 CON-10 PITCH 2.5mm GND1GND BK5V R301 4K7 BK5V R311 NC R312 240 R309 NC 2 4 6 2 GND 4 R315 6 430 2 SN301 4 REMOTE R317 6 820 BK5V VOUT GND VCC 2 4 R302 6 100 1 2 3 BK-5V R319...-3P 1 2 R306 2K7 2 JP303 1 GNDJUMP GND Q302 2SC945 2 Green GND GND Eastech Electronics (Taiwan) Inc Model No: LT2030 P/N: LCC30 Description: Date: 2005/07/07 Approver: CONTROL BOARD Revision: DVR1 PagBeI:LL 1/1 Checker: Designer:
CONTROL BOARD CIRCUIT 23 CN301 AD1 AD2 1 2 IR 3 4 BK5V STANDBY SDA_1 SCL_1 5 6 7 8 9 10 AD1 AD2 IR GND BK5V STANDBY SDA_1 SCL_1 GND1 CON-10 PITCH 2.5mm GND1GND BK5V R301 4K7 BK5V R311 NC R312 240 R309 NC 2 4 6 2 GND 4 R315 6 430 2 SN301 4 REMOTE R317 6 820 BK5V VOUT GND VCC 2 4 R302 6 100 1 2 3 BK-5V R319...-3P 1 2 R306 2K7 2 JP303 1 GNDJUMP GND Q302 2SC945 2 Green GND GND Eastech Electronics (Taiwan) Inc Model No: LT2030 P/N: LCC30 Description: Date: 2005/07/07 Approver: CONTROL BOARD Revision: DVR1 PagBeI:LL 1/1 Checker: Designer: