Left channel loud popping and crackling noise

[bryan.hodges]

Right channel audio is OK. The left channel does not produce any audio except loud pops and crackles. Voltages and resistances seem to be OK. Any way to fix this?

 

[Paul Birkeland]

Can you post the voltages you have and some photos of your build?

If the voltages are OK, you're likely looking at needing to reheat all of your solder joints. 

 

[bryan.hodges]

I reheated the joints and that seemed to fix it for a while. The problem came back.

 

[Paul Birkeland]

If you plug in a really cheap pair of headphones, then poke around with a wooden chopstick, you should be able to activate the popping noise by pushing on the loose joint.