Hi everyone. I'm a long time fan and reader, first time poster. I have a peculiar problem with my old 4 channel rockford punch. Around 6 months ago I was getting noise mostly on the two rear channels for quite a while. Then one day both rear channels kicked out completely. I could swap RCAs and still no sound in rear. Recently, the front right channel had stopped working, then the front left two days later.
I verified all wiring and I tested the amp with a different head unit to no avail. I cracked open the case and a few of the larger 4700 microfarad 50 watt caps seem to have a rather bloated top (filter caps (?), not the smaller ones nearer to the power supply). I desoldered one and discharged, then tested for a short and it was fine, but I couldn't get a good reading of capacitance with my multimeter.
There are no leaking caps and no other visible problem besides a transistor with a loosely soldered first leg, which I resoldered (although I still have no sound).
Is there any chance replacing these caps might restore sound to my amp? I still get power light but no sound at all. I can include pictures of the internals if needed. I have a 300 watt rockford from the same time and series that is still working fine, although sometimes it kicks out, and increasing volume on the head unit kicks it back on.
I've been stressing this and any help is greatly appreciated. Thank you!
I verified all wiring and I tested the amp with a different head unit to no avail. I cracked open the case and a few of the larger 4700 microfarad 50 watt caps seem to have a rather bloated top (filter caps (?), not the smaller ones nearer to the power supply). I desoldered one and discharged, then tested for a short and it was fine, but I couldn't get a good reading of capacitance with my multimeter.
There are no leaking caps and no other visible problem besides a transistor with a loosely soldered first leg, which I resoldered (although I still have no sound).
Is there any chance replacing these caps might restore sound to my amp? I still get power light but no sound at all. I can include pictures of the internals if needed. I have a 300 watt rockford from the same time and series that is still working fine, although sometimes it kicks out, and increasing volume on the head unit kicks it back on.
I've been stressing this and any help is greatly appreciated. Thank you!
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