Film-Tech Forum ARCHIVE: Dolby CP45 only runs in bypass ?

This is topic Dolby CP45 only runs in bypass ? in forum Film Handlers' Forum at Film-Tech Forum ARCHIVE.

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Posted by Eric Robinson (Member # 2966) on 07-08-2007, 12:26 AM:

I have a CP45 that illuminates the bypass LED on the front panel. The LED is fairly dim and has cyclic pulsating bright red flashes. The bypass normal switch can be moved to normal or bypass with no effect on its behavior. The front panel switches do not illuminate nor do they have any effect on its state. The unit runs on two AC power supplies, one for bypass, one for main power. I tried swapping power supplies, no help. I measured both power supplies which were outputting 27VAC. Anyone familiar with this problem?

Posted by Scott Christopher (Member # 834) on 07-08-2007, 03:53 AM:

Check the troubleshooting in your user manual (you can download it in the manuals section). There's a symptom close to what you described in there.

Posted by Eric Robinson (Member # 2966) on 07-09-2007, 11:03 AM:

I checked the manual and indeed it has a very detailed troubleshooting section for this particlar failure.
Cheers
[beer]

Posted by Mark Gulbrandsen (Member # 72) on 07-09-2007, 03:15 PM:

Come on... they barely run when they're working... or should it be they're barely working when they're running. Its definately one or the other.... [Big Grin]

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Mark