ViewSonic N2201w-1M Service Manual page 40

No Picture / LED is blue
Check if backlight is normal
Yes
Check if connector
of CON3 is normal
Yes
Check if signal of
LVDS is normal
Yes
Replace LCD panel
No TV Picture
Check if voltage
of U38 pin17 is 5V
Yes
Replace U38 HF
ViewSonic Corporation
No
Check if voltage of
power PCB CZ3,CZ4,
CZ5,CZ6 is normal
Yes
Replace LCD panel
No
Replace wire
No
Replace Main PCB
No
Replace Main PCB
37
No
Check the power and
control signal of CON1
in main PCB is normal
Yes
Confidential - Do Not Copy
No
Replace Main PCB
N2201w-1M