Hi
Can anyone tell whats wrong with this projector.
I ordered bulb from ywh and then i got problems.
Bulb is 200W BSM-AC-H
Projector is PHILIPS LC 4341
Output voltage to ballast ~370v (stable dc)
Power supply to ballast stays on after failure.
Normal output voltage from ballast to bulb 50v ac, modified to 55v
Projector goes off after 1-2 minutes and lamp light goes on.
It ignites ok and stays on for a moment.
Notified that its not temperature related problem at all.
---> little fine tune to ballast:
I did check projector with cold spray. Didnt find anything.
I added extra 10k resistor to power adjust and get 57k and output voltage raises to 55v.
It stays now longer on (because bigger voltage, takes more time to drop to 44v)
Bulb is bright untill heat session stops, then image goes a bit darken and:
Can anyone tell whats wrong with this projector.
I ordered bulb from ywh and then i got problems.
Bulb is 200W BSM-AC-H
Projector is PHILIPS LC 4341
Output voltage to ballast ~370v (stable dc)
Power supply to ballast stays on after failure.
Normal output voltage from ballast to bulb 50v ac, modified to 55v
Projector goes off after 1-2 minutes and lamp light goes on.
It ignites ok and stays on for a moment.
Notified that its not temperature related problem at all.
---> little fine tune to ballast:
I did check projector with cold spray. Didnt find anything.
I added extra 10k resistor to power adjust and get 57k and output voltage raises to 55v.
It stays now longer on (because bigger voltage, takes more time to drop to 44v)
Bulb is bright untill heat session stops, then image goes a bit darken and:
An externally hosted image should be here but it was not working when we last tested it.
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