20" LCD Color Monitor Planar PE2010
36
9.2.2 Power Board
1. No Power
Check to CN902 Pin1, 2 =12V and Pin 3,4 =5V
OK
Check Interface board
Check AC line volt 120V or 220V
Change F901, check BD901,Q903,IC901
Check the voltage of C905 (+)
Check bridge rectified circuit
Check start voltage for the Pin6 of IC901
Change IC901
OK
Check the auxiliary voltage is smaller than 20V
OK
NG
No power
NG
NG
OK
NG
1) Check IC902, IC903
2) Check Q903… OLP circuit
Check R909, D910,D911,ZD906
NG
OK
Repeating the start voltage
Summary of Contents for PE2010
Page 7: ...20 LCD Color Monitor Planar PE2010 7 ...
Page 8: ...20 LCD Color Monitor Planar PE2010 8 ...
Page 13: ...20 LCD Color Monitor Planar PE2010 13 6 Block Diagram 6 1 Monitor Exploded View ...
Page 17: ...20 LCD Color Monitor Planar PE2010 17 6 3 2 Inverter Power Board ...
Page 23: ...20 LCD Color Monitor Planar PE2010 23 7 2 Power Board ...
Page 24: ...20 LCD Color Monitor Planar PE2010 24 ...
Page 25: ...20 LCD Color Monitor Planar PE2010 25 7 3 Key Board ...
Page 26: ...20 LCD Color Monitor Planar PE2010 26 8 PCB Layout 8 1 Main Board ...
Page 27: ...20 LCD Color Monitor Planar PE2010 27 ...
Page 28: ...20 LCD Color Monitor Planar PE2010 28 ...
Page 29: ...20 LCD Color Monitor Planar PE2010 29 8 2 Power Board ...
Page 30: ...20 LCD Color Monitor Planar PE2010 30 ...
Page 31: ...20 LCD Color Monitor Planar PE2010 31 8 3 Key Board ...