SvenMZ8 0 Report post Posted March 9, 2010 so what was the fault? ground channel opamp? Share this post Link to post Share on other sites
Guest jacj6049 Report post Posted March 11, 2010 hi guys, i have a mini3 too. my Right channel is shorted somehow. just turn on, and volume becomes max. left channel follows the pot. only right side doesnt. can anyone help me check it up or fix it up? will pay a small fee. hi,i try to help ya right after i get grhu's amp done,pm me regard Share this post Link to post Share on other sites
Duck-in-the-Box 0 Report post Posted March 11, 2010 (edited) which shop? i wanna go visit and do something to my stuff. Edited March 11, 2010 by Duck-in-the-Box Share this post Link to post Share on other sites
iewgnail 0 Report post Posted April 5, 2010 hi guys, i have a mini3 too. my Right channel is shorted somehow. just turn on, and volume becomes max. left channel follows the pot. only right side doesnt. can anyone help me check it up or fix it up? will pay a small fee. Share this post Link to post Share on other sites
blippster 0 Report post Posted April 8, 2010 hi guys, i have a mini3 too. my Right channel is shorted somehow. just turn on, and volume becomes max. left channel follows the pot. only right side doesnt. can anyone help me check it up or fix it up? will pay a small fee. As dennis suggested, it's likely a pot issue. A good place to start would be the solder pads there under the board, make sure that the pins aren't shorting together. Pictures might be helpful. Share this post Link to post Share on other sites
iewgnail 0 Report post Posted April 8, 2010 As dennis suggested, it's likely a pot issue. A good place to start would be the solder pads there under the board, make sure that the pins aren't shorting together. Pictures might be helpful. i use a multimeter to check out resistance both the pot. both L and R shows 0 and 10k when they should. my friend was suggesting it one of the caps that is giving me the problem. but i have no idea how to do so. Share this post Link to post Share on other sites
wwenze 0 Report post Posted April 8, 2010 i use a multimeter to check out resistance both the pot. both L and R shows 0 and 10k when they should. my friend was suggesting it one of the caps that is giving me the problem. but i have no idea how to do so. What you should be checking is whether turning the pot has any effect on the signal eventually reaching the amp chip. Place your probes on pin 5 of the chip and this pin on your pot It should read 10k at min volume and ~330 at max. Also, the two topmost pins of the pot (with respect to the diagram), check that the resistance between them is zero regardless of pot position. This could be just a simple case of broken solder. Share this post Link to post Share on other sites
