Polk PSW111 clicking sound

Sweetwater

I've checked through the forum and came across several posts about this but found nothing specific about how to repair. I recall seeing something about replacing some capacitors. Can you please tell me the caps that need replacing and if I can order them from you ? I've got no problem doing the repair myself. Thanks

F1nut

Polk doesn't sell capacitors.

Fabio_rm

Sweetwater wrote: »

I've checked through the forum and came across several posts about this but found nothing specific about how to repair. I recall seeing something about replacing some capacitors. Can you please tell me the caps that need replacing and if I can order them from you ? I've got no problem doing the repair myself. Thanks

If the problem is the heartbeat, the capacitors to be replaced are those that filter the PWM power coming from the transformer, they are downstream of the rectifier diode, before the voltage regulators which then power the operational amplifiers. I understand that the psw111 has more than one version of the amplifier plate, one is similar to that of the psw110, and below I put the link to a comment of mine where I posted a photo of the psw110 to identify the capacitors. The ones causing the problem are essentially the ones circled in red (47uf - 63V), I also replaced the others for a few euros of expense. If you have a different plate amplifier you need to find the wiring diagram and locate where they are. The replacement capacitors must be low impedance, 105°, better if long life, otherwise you can find them of the same value you can also use slightly higher capacities (I used Panasonic FR series ones)

For psw110 plate amplifier:



discussion:
https://forum.polkaudio.com/discussion/comment/2709997/#Comment_2709997