ViewSonic VS11856 Pro8100-1 Service Manual page 59

Fail to light up
Check LED
indication
OK
Check
Lamp life
OK
Check Power board
380V output
OK
Check Ballast
OK
Check
Mainboard
ViewSonic Corporation
Refer to LED
NG
indicator and follow
indicative actions
NG
Replace
Lamp Module
NG Replace
Power board
NG
Replace
Ballast
NG Replace
Mainboard
56
Confidential - Do Not Copy
PRO8100-1