LP630 Service Manual
72
Fans run, no lamp
Remove the lamp
and check it for rupture, cracks, or bulges.
If there are no visible problems, lamp is almost always good.
Or sub a known good lamp.
If lamp looks good or the know good lamp does not light,
continue to the next step.
Some fans, no lamp.
Note:
With an open thermal switch, lamp comes on,
then goes out, and fans run at full speed.
Note:
All fans are sensed to detect if they are running.
If one is not running the others will run at full speed and the
lamp will not come on.
For any fan not visible, sub a fan into the connector.
Are
power supply
voltages good?
Replace
power supply
Are
lamp enable
voltages good?
Replace
controller ECA /
optical engine set
Replace
ballast
.
yes
no
no
yes
There are four fans
connected to the controller.
The connectors are labeled
on the controller ECA.
(page 8)
(page 46)
(page 80)
(page 80)
(pages 16 & 34)
(page 41)
Summary of Contents for LP630
Page 1: ...Service Guide for the LP630 010 0331 00 ...
Page 22: ...LP630 Service Manual 22 b The projection lens side of the controller ...
Page 23: ...LP630 Service Manual 23 c The front of the controller ...
Page 48: ...LP630 Service Manual 48 5 Lift the power supply from the bottom case ...
Page 52: ...LP630 Service Manual 52 ...