Recapping Naomi JQA PSU?

Anonymouse

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Hi there,

I haven't posted on this forum for a while. Ive got a F355 Twin which I originally bought a single of then a partner for it to link together. One of the machines I have had constant trouble with over the years. 3 naomi boards have failed and 2 FFB boards failed. The partner to it has been basically trouble free except for repair of boards that were faulty when I bought it.

The common link between all these issues would be the PSU. Ive checked everything. The Voltages are spot on, 4.99, 3.3, 12.1. I even put my oscilloscope on the outputs and they are flat.

I have now opened up the PSU, cleaned it and inspected. All capacitors appear in good condition without signs of leaking or bulging. I may still recap it but it is quite an effort. Whats your thoughts?

Any suggestions if this problems could be PSU related or have I just been really unlucky with this machine?
 

cliche

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Have modded PSUs for PCs in the past, but all I could suggest is swap them over to see if that eliminates the issues on the stricken one;

but there is a risk it could affect the other if it is a PSU issue.
 
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