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Old 3rd January 2013, 05:09 AM   #21
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No it didnt.

This is a pic of the gate drive signal, 10us 5vd
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File Type: jpg Alpine MRV-1507 drive signal 004.jpg (413.5 KB, 33 views)
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Old 3rd January 2013, 05:14 AM   #22
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I don't see a problem with that. If you measure the DC voltage from center leg to center leg of the two rectifiers on each side, what is the DC voltage?
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Old 3rd January 2013, 05:17 AM   #23
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-50 vdc on both sides.

If the signal looks good, and its producing rail, why wont it power why does the power light just flash red?
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Old 3rd January 2013, 05:25 AM   #24
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Are all of the connections between the two boards intact?
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Old 3rd January 2013, 05:40 AM   #25
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They are now.
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Old 3rd January 2013, 05:42 AM   #26
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Does the amp produce audio?
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Old 3rd January 2013, 05:53 AM   #27
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It tries to sometimes, there is pulsing DC everywhere.

Its on the output terminals, the drains, gates, and sources of the outputs have bouncing DC that all over the place, maybe when the amp is trying to turn on and off?

I cant get any consistant readings I can see audio for seconds on 1 channel then it goes away and I am getting DC spikes on the other channel.

I dont know??
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Old 3rd January 2013, 05:55 AM   #28
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It could be that the channel with DC is causing it to go into protect. Double0check the outputs.
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Old 3rd January 2013, 06:04 AM   #29
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OK I will check the outputs in the channel with DC spikes. That makes sense because the channel has audio until the other one spikes the it loses it.
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Old 3rd January 2013, 06:22 AM   #30
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I removed all the outputs to test them and thought I would power the amp.

Same result the amp powers green, just starts drawing current then flashes red and the one channel is geeting DC spikes of up to 12 vdc.

Any ideas?
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