H76
3-3
3-2.1
A. Power Troubleshooting
Is LED
indicator
OK?
Check power
cord &
input power
voltage
Lamp Cover
assembly OK?
Reassembly
Lamp
Cover
Start
End
Supply
Power
Source
Is Fan working?
No
Yes
No
No
Yes
Yes
Change
Power Supply
Module
Change
Front-End
Board
Yes
No
Is Lamp lit?
No
Change
Thermal
Board
Change Fan
Module
No
Change
Lamp
Ballast
Change
Front-End
Board
No
Yes
No Fault Found
Can hear the sound
of lamp turn on?
(Da.Da.Da.)
No
No
Yes
Change Lamp
Module