Christie CP2220 LVPS AC/DC circuits fail

[Alex Znamensky]

During last month there's started to appear this set of errors:

• LVPS AC circuit fail (or, possibly, "loop" — not sure with an actual error name in english)
• LVPS DC circuit fail
• PowerGood 1v8 3v3 — no
• PowerGood 24v EXT — no

That being said, everything works fine, as far as I can tell, and the errors disappear after reloading the projector.
They tend to get back again approximately once every 5 to 7 days.
Was wondering how critical it is and what's the problem. Is the LVPS dying or could it be something else?

[Adrian Avram]

Withe the projector Off/Disconnected, you can reconnect the small white plug on the back of the LVPS, that carries the On/AC Ok/ DC Ok signals to the backplane. Also on the motherboard (backplane) reconnect J8/P8 connector. Lastly, I would also reseat the PIB card (presumely you can perform the projector Marriage again).

[Marcel Birgelen]

Checking if those connectors are free of oxidation and reseating them can help, but to be honest, I suspect your LVPS is going to give you a hard time in the future. I've seen this pattern before and it resulted in an LVPS-replacement. Unfortunately, the Christie LVPSes are prone to fail early...