Film-Tech Forum ARCHIVE: ORC 1000 Lamphouse

This is topic ORC 1000 Lamphouse in forum Film Handlers' Forum at Film-Tech Forum ARCHIVE.

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Posted by Michael Labbe (Member # 148) on 01-28-2000, 01:13 PM:

I am currently working on a ORC 1000 Lamphouse,(supply and bulb are all in the same unit no larger then a large lunchbox). When the circuit breaker on the unit is turned on the unit buzzes loudly and the circuit breaker trips off. I have changed all four diodes as well as the blocking diode. The service manual states the problem is most likely the control board. When I remove the control board the unit will not trip the breaker. It is my understanding that this board is no longer available. Any ideas who could repair the board. I have already changed all diodes and signal transformer on the board with no luck. There are at least 5 caps on the board and quite a few transistors. Any help would be greatly appreciated.

Posted by Gordon McLeod (Member # 33) on 01-28-2000, 02:06 PM:

Probably the triac or SCRs that have shorted depending on the board version

Posted by Aaron Sisemore (Member # 145) on 01-29-2000, 02:06 AM:

Try contacting Ballantyne/Strong, they might still have some NOS parts for ORC lamphouses in stock....

Aaron

Posted by Jim Bedford (Member # 4) on 01-29-2000, 11:33 AM:

Try calling Ross Krantz (Cinema Engineering Services in Sandia Park, NM) at 505-281-5998. He's been repairing my half-dozen or so ORC-1000's for over 20 years and has some extra parts.