19" LCD Color Monitor HP VS19E
36
2. W/LED No Backlight
Check L1912 =12V
Check IC701 PIN11,12,19,20
Check IC801 PIN3=5V
End no output debug
Check ON/OFF signal
Check IC801 PIN5=5V+0.25V
Check adapter
Check Interface board
OK
OK
NG
NG
Check Q806,Q807, Q812, R840,ZD803 circuit
NG
NG
OK
Check IC801 PIN 18 triangular wave is
normal
Check Q806, Q807,Q812,R840,ZD803 circuit
Check R817,R919,C812,C848,IC801
Check R817,R819,C812,C848,IC801
OK
OK
OK
NG
NG
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