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Modular Amps
Egnater / Randall Modular Amps
fuse issue
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<blockquote data-quote="Jaded Faith" data-source="post: 137090" data-attributes="member: 1068"><p>Sorry for the delayed reply here. I'm available 9-5 to help if your tech needs help.</p><p></p><p>Assuming these fuses are in an RM100, F3 & F4 should be the low voltage supply off the power transformer and are 5A 250V fuses. The schematic doesn't indicate if they are delayed or not, but I think the are Slo-Blow (a T prefix on the fuse will confirm this). Do confirm that the replacement fuse you are trying to use is a 250V type, as they sell a lot of 125V at stores like Radio Shack and it's an easy mistake.</p><p></p><p>If this fuse continues to blow, I'd be suspicious of either BD1 (the bridge rectifier right after the fuse) or U1G (the 12V regulator) a little further downstream.</p><p></p><p>Good luck and I hope this helps!</p><p>Rob</p></blockquote><p></p>
[QUOTE="Jaded Faith, post: 137090, member: 1068"] Sorry for the delayed reply here. I'm available 9-5 to help if your tech needs help. Assuming these fuses are in an RM100, F3 & F4 should be the low voltage supply off the power transformer and are 5A 250V fuses. The schematic doesn't indicate if they are delayed or not, but I think the are Slo-Blow (a T prefix on the fuse will confirm this). Do confirm that the replacement fuse you are trying to use is a 250V type, as they sell a lot of 125V at stores like Radio Shack and it's an easy mistake. If this fuse continues to blow, I'd be suspicious of either BD1 (the bridge rectifier right after the fuse) or U1G (the 12V regulator) a little further downstream. Good luck and I hope this helps! Rob [/QUOTE]
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Modular Amps
Egnater / Randall Modular Amps
fuse issue
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