Trouble Shooting Table - Sharp PG-C45X Anleitung

Lamp fails to light-up
Turn on the power switch.
Is discharging sound heard from
lamp?
No
Is the ballast cooling fan running?
Yes
Is DC 280V/400V voltage applied
between CN704 connetor pins?
Yes
Is 2V or higher voltage applied
between pins(4) and (2) of ballast's
CN705 connector.
Yes
Replace the ballast.

TROUBLE SHOOTING TABLE

Yes
Is the lamp out of socket?
Replace the lamp
No
Check the power supply circuits.
No
Check the power supply circuits.
No
Is the CN705 connector
disconnected?
Reconnect it into socket correctly.
Yes
No
No
Yes
29
PG-C45X
Reconnect the lamp into socket.
Check the microproccessor and its
peripheral circuits.