Lamp Fails To Light-Up - Sharp XG-V10XE Service Manual

XG-V10XE
TROUBLE SHOOTING TABLE
Is the lamp out of socket?
Yes
No
Replace the
Reconnect the
lamp.
lamp into socket.
Replace the ballast.

Lamp fails to light-up

Turn on the power switch. Is
Yes
discharging sound heard from
the lamp?
No
Is the ballast cooling fan
running?
Yes
Is DC 360V voltage applied
between PL1 and PL2
connector pins?
Yes
Is 3.5V or higher voltage
Yes
applied between pins (1), (2)
and (4) of ballast's D
connector?
No
Is power EA connector
disconnected?
Yes
Reconnect the
Check the
connector into socket.
microcomputer circuit.
46
(Continued)
No
Check the power circuit.
No
No