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techie47

Strange issue with signal/ IOC led.

3 posts in this topic

I have a Crown MA1200 that has a very strange issue.

When you power it up ,the channel one signal/ioc green led comes on and goes off when the relay clicks on. However, on channel two, the green led does not come on at all. The odep led stays lit bright on both channels. I know that is normal for odep led to stay on.

Has anyone seen this type of problem before?

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Hello techie47,

This issue could very well be a display board problem. You may have a faulty led, or, perhaps, the load resistor or switch is open. Verify the IOC drive on the display board.

Also, can you tell us if the Ch2 output comes up normally?

Alain

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