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Hi,
I have the original mapletree headphone tube amp which I recently dropped by accident. After that it stop working, every time I switch the power on, it blew a fuse. I tried to open the amp and do visual inspection, nothing loose or burned...
I do not have a lot of knowledge on electronics, but I can do basic solder etc.
Does anybody know what when wrong if it keeps blow a fuse? Or if you can direct me to the component that might be broken.
Thanks
e.
Follow Ups:
Ok stupid question time. Did you change the tube? I don't think that would blow the fuse. But it sounds like you physically damaged something important.
See if you can physically see any wires charred or burn marks anywhere???? Shorts, arcs, etc.... Post your findings?
Like the other suggestions - you're going to have to have it checked.
Yes, I did replace the tubes.
Something odd happening, I did another visual check on the weekend, and re-seat one of the output transformer. I thought maybe there are some cables that got pinch between the transformer and the chassis. Re-installed it and moved some caps, resistors around to make sure they did not touch each other. Replace the fuse, and suddenly it worked! Still have not clue what did I do to fix it.
Brought it to the office today and used it for a couple hours... then it blew the fuse again... So back to square one again...
Any idea what when wrong?
I might need to bring this to a repair shop.
Can anybody recommend a repair shop in the East bay area (Oakland)?
Thanks
It needs to be looked at by someone and troubleshot. We can all guess however.ET
Edits: 01/30/16
Have you considered calling Mapletree?
:)
Maybe when it was dropped a connection somewhere got jarred into a position where it is touching the chassis or another grounded point somewhere.
That is what I thought at first, but cannot find any. I'll give another try tonight.
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