PSone problems

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sorry for double posting this but maybe i could get an answer here, (never seen these forums before sorry mod) does anyone know of a resitor or fuse that could cause non-booting problems on the PSone. i give it 7.5v and nothing happends, no green light no nothing. So if anybody knows some common blone fuses that i could bypass could they provide a image or instructions on where it would be.

[devileyebrows42]

Im guessing you successfully tested it several times but it suddenly stopped working. if thats the case I had exactly the same problem. i think there are a total of 5 fuses on the mobo. The main one is near the 7.5 volt in terminals. it should be titled "ps600" (I think) bypass it with a piece of wire or just put a blob of solder over it. if that doesnt work check the fuse threads in the playstation sticky. they should have pictures there. If they don't ill take one and post it for you. Hope this helped.