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Old 8th June 2010, 03:11 PM   #1
diyAudio Member
Join Date: Sep 2006
Default Mtx rt2100x

I just wanted to share theese photos of an amp i got in for repair.

This is a do it yourself repair job done by the owner of the amp.

He wonders why it doesnt work correctly.

Any thoughts??? LOL
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Old 8th June 2010, 06:47 PM   #2
jol50 is offline jol50  United States
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Join Date: Nov 2007
He forgot the coat hanger?
If you bypass part of the input section it will play twice as loud?
Plugs cause too much resistance and inductance?

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Old 8th June 2010, 06:58 PM   #3
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Join Date: Sep 2006
dont know if it will play twice as loud ill check into that As soon as i figure out what else he burned up in the amp since it only plays at loow volume and makes the test speakers flutter like crazy with new rca jacks put in.

If it will play louder hell ill do it to all my amps lol
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Old 8th June 2010, 07:35 PM   #4
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Join Date: Nov 2003
Location: Louisiana
it sounds like you may have an open shield ground. Confirm that you have continuity from the shields to the circuit board. The tiny traces that connect the pads to the ground planes can open and can be difficult to see if you're not specifically looking for open traces.
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Old 8th June 2010, 08:22 PM   #5
jol50 is offline jol50  United States
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Join Date: Nov 2007
Moving speaker yes shield ground issue is good thing to look at. I give credit to people trying to fix things, but wow I've seen some strange stuff with amps too and some of them had nothing to do with what was wrong with them. Some people should stay away from electrical things. The alpine f300 I fixed was messed with some, bunch of the screws were threaded in crooked, and you don't even have to take them all out to get the amp apart...and its not hard to see that. I'm just going to take a guess here and say that anyone that can work on basic electronics knows how to put a screw in a hole it came out of and can do it correctly most of the time.
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