Outrun bridge rectifier

parism

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Donor 10 years: 2014-2015, 2017-2021, 2023-2025
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Ok, talking about bad timing. I have people over tonight and the sound of my OutRun quit. The pcb works fine on the test bench and the amp seems fine. I am measuring 50v on the one rectifier outputs (good, that goes to the D.C. Motor) but almost zero on the other rectifier that supplies the 12v to the amp. So it is obviously busted hence no sound. Since the monitor is working I have no reason to suspect the isolation transformer.

Question: since I am in a pinch I am considering running 12v from the switcher psu to the amp but I don't know how the wires should be connected. The manual has a + and a - to the amp from the rectifier. Can I substitute the + for the 12v and the - with the GND from the switcher?

Thanks guys...

Paris
 
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