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Casio FZ Samplers

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Re: Casio FZ-10M fails to boot: only screen light + sometimes 2 red LEDs. How to fix? Thanks!

2014-12-13 by db0451@...

Fran,

Voltage across the +12 V capacitor is the same as at the FDD: -0.15 V instead of what it should be… Where do I look next? Haha. Power supplies almost completely baffle me, although I’m very keen to learn.

With power off, and my voltmeter in resistance mode at the "20 k" setting, the reading across + and - of the rectifier is about 0.69 regardless of the polarity that I apply the probes.

Back to the schematic... Any other quick things to check would be superb, if they can narrow down the problem. Getting a new fuse is a good idea in any case, but I'm not sure I can reach the shops in time today...

Thanks again
Dan

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