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Old 27th June 2006, 12:14 AM   #1
diyAudio Member
Join Date: Nov 2004
Location: Bucharest
Default cadence ZRS-10 schematic!

HelP whit Cadence ZRS-10 class D amplifier.
The problem is PWM and protection.
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Old 30th June 2006, 08:47 AM   #2
diyAudio Member
Join Date: Nov 2003
Location: Louisiana
Does that amp have the ICs marked B52/F16?

You mentioned that the problem was in the PWM section. Is that the power supply PWM or the audio PWM?

If the amp has hinged covers like the ZRS9, make sure that the screws are tight. I've seen them fall out several times. Generally they cause damage when they short between components.

Have you checked all of the power semis on the heatsink to see if any were shorted?

Also check for shorted/broken inductors on the output.
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