HCL HCM9LWAT11 Servise Manual page 33

19"W LCD Color Monitor
No picture (LED orange)
The button if under control
Measure CN701 PIN9, 10=5V,
U702 PIN2=3.3V
X401 oscillate waveform is
normal
OK
Check HS/VS from CN405 is
normal
OK
Replace U401
No picture
NG
OK
NG
OK
NG
NG
Replace the key button
Replace CN701 or U702
Replace X401
Check Correspondent component
33
HCL HCM9LWAT11