Negatron
100+ Head-Fier
- Joined
- Aug 5, 2006
- Posts
- 422
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- 16
Quote:
The problem may well be as simple as a bad solder joint. Just look at the bottom and I/O connectors (if you have screw down headers check them too) Use a magnifying glass and look for grey colored solder joints (that are not shiny). Solder joints and very small solder bridges from splashes that heat expansion could be bringing into play may well be the cause. If you see a suspect joint reflow it with flux. Hopefully it's an easy one.
One more thing. In the absence of an occiloscope you can use a DMM on millivolt scale and being carefull not to short out anything, trace an input signal to where it stops. http://www.diyforums.org/MAX/schematic/MAXsch75.jpg
It's usually simple. (That does not always mean fast.
)
On the otherhand, if your luck is like mine, it is a problem that one on earth has ever seen before and evil spirits from outer space are wagering on the outcome of your sanity.
Originally Posted by Tyne /img/forum/go_quote.gif Hey, I've been enjoying my Max for quite some time now, but I've recently been having a problem with the left channel. Usually when I turn the amp on only the right channel works. I have to turn the amp off and turn it back on to get them both on. Sometimes after a few hours of listening the left channel will go dead again. Any advice on what might be the problem? I went with BJT Diamond Buffer for the output stage btw. |
The problem may well be as simple as a bad solder joint. Just look at the bottom and I/O connectors (if you have screw down headers check them too) Use a magnifying glass and look for grey colored solder joints (that are not shiny). Solder joints and very small solder bridges from splashes that heat expansion could be bringing into play may well be the cause. If you see a suspect joint reflow it with flux. Hopefully it's an easy one.
One more thing. In the absence of an occiloscope you can use a DMM on millivolt scale and being carefull not to short out anything, trace an input signal to where it stops. http://www.diyforums.org/MAX/schematic/MAXsch75.jpg
It's usually simple. (That does not always mean fast.
![smily_headphones1.gif](http://www.head-fi.org/forums/images/smilies/smily_headphones1.gif)
On the otherhand, if your luck is like mine, it is a problem that one on earth has ever seen before and evil spirits from outer space are wagering on the outcome of your sanity.
![biggrin.gif](http://www.head-fi.org/forums/images/smilies/http://hfimage.head-fi.org/smilies/biggrin.gif)