This diagram is suitable to elementary trouble shooting,if you want
further service,please contact us.
No
24V of Power
module is ok?
No
Replace
power
module
BKL
is ok?
Replace
panel
Trouble shooting guide
Black Screen
Idicator
is nomal?
Yes
Backlight
is
open?
Yes
No
Enable
Yes
- 16 -
No
Power module
is normal?
Check
Main
board
Yes
Check
main
board
No
Yes
Replace
power
module