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Post by audiobill on Feb 10, 2020 6:08:11 GMT -5
Those diodes may have been damaged by an ac voltage spike - if you have lightning or voltage surges in your area, maybe not such a good idea to leave powered up during storms.
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Post by dimitryz on Feb 13, 2020 20:33:01 GMT -5
Those diodes may have been damaged by an ac voltage spike - if you have lightning or voltage surges in your area, maybe not such a good idea to leave powered up during storms. Unlikely as all equipment is on three big power conditioners... However, very happy that my E gear is functioning perferctly again! |
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Post by shark1000 on Jul 4, 2023 7:36:12 GMT -5
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Post by shark1000 on Jul 4, 2023 7:39:58 GMT -5
I realize these are very old posts! But, I had the internal fuse problem. I am not an Electronics expert but I was advised to increase the amperage of the internal fuse ( I believe be 1/2 amp) and it has held for four years. This was after I had the fuse replace under warranty. |
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Post by leonski on Jul 14, 2023 20:16:36 GMT -5
Doubt it is a fuse either. If a fuse goes, end of the show. It will blow and no come back. Why did the fuse blow etc. I am thinking something suspiciously as simple as a cold or cracked solder joint somewhere. Not easy to find but can happen due to thermal stresses in electronics over the years. Sometimes takes a long time. Sometimes not. But based on the last post and the word intermittent makes me suspicious. I am not promising that is what it is but until someone puts it on the bench and tests the sub systems of the XSP-1, we all are kind of guessing. Solder these days is NOT the same as old-school Lead-Tin..... Most are lead-free and are more brittle than old formulations........ Just go to the KESTER website and browse...... Blown diodes? And several, at that? sounds like entire discrete bridge went south. I don't see this without an associated surge or even a brownout....... Fuses? Vac suggested a meter to check. YES.....and YES again.......Some low-value fuses are just beyond my old eyes and a meter is the ONLY way to confirm.... |
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Post by vcautokid on Jul 14, 2023 21:10:26 GMT -5
ROHs compliant solder is meh. I do like the original. Flows nice and gets the job done.
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Post by leonski on Jul 17, 2023 1:15:55 GMT -5
I was a victim of that stuff. My Panasonic Plasma? Needed a resolder and actually had a bad part.
Bill was a couple hundred or more......I have mercifully forgotten!
I've repaired stuff using my 'stash' of Kester which is a 63% / 37% and now apparently getting valuable.....
If I bought a VTA amp (pair of monos!) to build, I'd have a supply of the 'good stuff' going in and send off for a 15degree 'bent' tip for my Hakko......
And maybe another fine tip expressly for Board Work.....a driver board needs to be built. The standard tip should be perfect for everything else.....
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