Christie CP2215 error when reopening after 1.5 month due to covid

[Sean McKinnon]

Is it possible you missed a breaker? I am curious though how the TPC is powered if the LVPS is bad.

[Elia Orselli]

TCP is powered by 24V standby supply, not from LVPS. LVPS powers on backplane (and boards) and EVB (fans, motors..)

[Marcel Birgelen]

Yep, the TPC is indeed powered by the Standby PSU, because if I remember correctly, it is the TPC who eventually sends the POWER ON to the LVDS... I had a schematic of how stuff is powered on those machines once, because LVDS related faults were the most common, but I can't find it right now. It was a pretty public thing and provided to me by Christie.

[Mark Gulbrandsen]

Elia is correct. It's powered from the 24 volts. If it was not you would not have control over the projector....

[Sean McKinnon]

Of course you are all correct, but the standby PSU still takes its inlet power from the same 100-240volt power input so if the TPC is running the projector is likely getting power.