ViewSonic Corporation
Confidential - Do Not Copy
N
2201w-1M
3
7
No TV Picture
Replace Main PCB
Yes
No
Check if voltage
of U38 pin17 is 5V
Replace U38 HF
No Picture / LED is blue
Yes
Yes
No
No
Check if backlight is normal
Check the power and
control signal of CON1
in main PCB is normal
Check if voltage of
power PCB CZ3,CZ4,
CZ5,CZ6 is normal
Replace LCD panel
No
Replace Main PCB
Yes
Replace Main PCB
Yes
Yes
No
No
Check if connector
of CON3 is normal
Replace wire
Replace LCD panel
Check if signal of
LVDS is normal
