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Orion xtreme 3752 help
Orion xtreme 3752 help
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Old 29th December 2011, 06:19 AM   #1
jasexile is offline jasexile  United States
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Join Date: Sep 2011
Location: Earth
Default Orion xtreme 3752 help

Hello, I am new to repairing amplifiers however I have been able to fix two amps with the help from reading on this board. My problem is that I have an Orion XTREME 3752 that is blowing fuses as soon as it turns on. I found 2 bad transistors 2N6491 which were replaced however the amp still blew the fuses. I then removed the new 2N6491's and powered the amp on. The fuses didn't blow like when i first removed the bad transistors. This time however I started smelling something so i turned off the power and found 2 330 ohm resistors that were burning. After I replace these resistors what else can I check? Also when i was soldering the new 2N6491's a ring fell out of the soldering point. Could this be the issue? Thanks in advance
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Old 29th December 2011, 08:09 AM   #2
Perry Babin is offline Perry Babin  United States
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Join Date: Nov 2003
Location: Louisiana
It looks like the layout of the drive sections is identical for both channels. Find the corresponding parts in the other channel.

If the solder pad lifted but there was no trace connected to it, it's probably not a problem. Solder from the other side. If there is no trace on either side, it could be a problem. Some of the Orion amps used 3 layer boards and the traces were buried between layers of fiberglass.
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