XG-C330X/C430X
5 – 3
Lamp fails to light-up
Turn on the power switch.Is
dischargeing sound heard
from lamp?
YES
Is the lamp out of socket?
YES
Reconnect the lamp into
socket.
NO
NO
Repalce the lamp.
Is the ballast cooling fan
runnning?
NO
Check the power supply cir-
cuits.
YES
Is the DC voltage of 380V
applied to pin(1) of P702 con-
nector?
NO
Check the power supply cir-
cuits.
YES
Is LOW LEVEL voltage
applied between pins(3) and
(4) of Main's P1702 connec-
tor?
NO
Is the P1702 connector dis-
connect?
NO
Check the microprocessor
and its peripheral circuits.
YES YES
Replace the ballast.
Reconnect it into socket cor-
rectly.
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