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repairing an RCA jack on the back of an integrated amplifier
macdaddy
post May 20 2002, 01:02
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When pulling out a patch cable, I somehow pulled the jack out of the amplifier. Now there is a stub, where the post can fit, but it fits loosely, and the only output I get out of that channel is a hum. I have also seemed to have lost the piece (ouch!), but radio shack seems to have a replacement part (with the soldering points)...

Has anybody else ever done this? Does anybody know how to fix this? The machine is the Denon PMA 920. The damage is to the right channel phono-in jack...

The way I see it, I have several options:

1-use a phono preamp, which might improve the quality anyway.

2-fix the thing with a replacement part, and continue using the unit's phono stage.

3-have the unit professionally fixed, but I have no idea where to go-I bought the unit on the other side of the country, and have none of the packing materials.

Thanks in advance for any suggestions or assistance.
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rocketsauce
post May 21 2002, 05:38
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Being that you live in LA, it shouldn't be too hard to find a good repair shop.

http://www.denon.com/support/network.asp
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macdaddy
post May 21 2002, 14:01
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Thanks rocketsauce-

Interestingly, there are no "super service centers" in the state, but I will look into some of the authorized service places later on today...
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fewtch
post May 21 2002, 14:51
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Those jacks typically have 6 or more soldering points (for purposes of strength) and just removing the old one can be a serious b**ch (especially without damaging nearby components). Probably a good idea to have a pro do it.

I would think just about any electronics shop could do it though, especially if the circuit board is easily accessible.


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JonPike
post May 22 2002, 10:02
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QUOTE
Originally posted by fewtch
Those jacks typically have 6 or more soldering points (for purposes of strength) and just removing the old one can be a serious b**ch (especially without damaging nearby components).  Probably a good idea to have a pro do it.

I would think just about any electronics shop could do it though, especially if the circuit board is easily accessible.


Aha.. multiple threads.. Just addressed this a bit on the other one.

That would be the problem, if there are lots of points. But, not a bad one. Using solder wick, or a solder sucker, you can desolder each joint in turn, and get it loose easily.. rather than have to melt all joints at once. With a little practice, it's easy.. (being said by someone who's done this for many years) smile.gif

But connectors have nice, big leads coming thru big holes.. as opposed to smaller things like resistor or IC legs. So, they should be easy, even for the inexperienced.. But it will depend on what's nearby, and are there any gotcha's like folded over tabs that are now filled with solder.. A pic of the top and bottom area would clear up a lot..
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