37’’ LCD TV RCA L37WD23
22
5. Repair Flow Chart
1. No Power (No LED indicator)
2. Can not start (LED indicator yellow)
NG
Check power cord and board interface
Plug in power cord and interface
OK
Check F901, BD901, C911
NG
Replace F901 or BD901 or C911
OK
Check NR901, C907
Check Q914, IC912,IC901,Q901,Q910
,
Q903,Q904
NG
Replace NR901 or C907
OK
Check D900, D916, IC905, Q900
OK
Replace D900,D916
,
IC905,Q900
Replace Q914 or IC912, IC901, Q910,
Q903, Q904
OK
NG
NG
Check IC902
,
Q902
NG
Replace IC902
,
Q902
Check D931
,
D932
,
D910
,
IC931
Check D931
,
D932
,
D910
,
IC931
OK
NG
NG
Repair the key board
OK
Check 5V SB
NG
Return to “1”
OK
Check PWR ON signal
NG
Check U905, Q906, Q907
NG
Replace U905 or Q906 or Q907
Check I
2
C communication
OK
Check RELAY-SW signal
NG
Replace Q913, Q914
Check U401, U404
NG
Replace U401 or U404
OK
OK
Check main board power supply part
Check key board
OK
Check I
2
C communication
Содержание L37WD23
Страница 19: ...37 LCD TV RCA L37WD23 19 4 Remove the shielding ...
Страница 21: ...37 LCD TV RCA L37WD23 21 7 Remove the bezel ...
Страница 26: ...37 LCD TV RCA L37WD23 26 6 PCB Layout 6 1 Main Board ...
Страница 27: ...37 LCD TV RCA L37WD23 27 ...
Страница 28: ...37 LCD TV RCA L37WD23 28 6 2 Power Board ...
Страница 29: ...37 LCD TV RCA L37WD23 29 ...
Страница 30: ...37 LCD TV RCA L37WD23 30 6 3 IR Board ...
Страница 31: ...37 LCD TV RCA L37WD23 31 6 4 Connector Board 6 5 Key Board ...
Страница 34: ...37 LCD TV RCA L37WD23 34 8 Block Diagram ...
Страница 54: ...37 LCD TV RCA L37WD23 54 10 Exploded View ...