Polk Audio DSW Pro 500 - No power

Reality

[H]ard|Gawd
Joined
Feb 16, 2003
Messages
1,937
No power to the unit. LED on the rear does not illuminate. Tried all of the easy fixes (New cable, different outlets, checked internal connections)

PCB here looks burned/damaged, and the IC near that burn spot I would imagine is dead, anybody got advice?

Guessing it's dead, I got it free so it's not a loss.


197997_52898325_321633155366280_218569631562989568_n.jpg

197996_power.jpg

Included a pic of the fuse also
197998_fuse.jpg
 

Attachments

  • power.jpg
    power.jpg
    445.8 KB · Views: 0
  • 52898325_321633155366280_218569631562989568_n.jpg
    52898325_321633155366280_218569631562989568_n.jpg
    346.7 KB · Views: 0
  • fuse.jpg
    fuse.jpg
    242.4 KB · Views: 0
if you wanna use the sub there are three options as I see it.

1. call Polk and inquire about obtaining a replacement amp plate.

2. find someone to service the amp for you.

3. Attempt DIY repair.. my guess from the pics is C7 and D4 and maybe the IC (U1) are toast.. order new parts and solder them in..
 
if I could find those parts I could probably repair it myself
 
Amp plates are pretty inexpensive third party

So are small external amps to drive the speaker

Just some other options
 
Gonna drop off the whole amp plate to a repair guy and see what he says
 
I have just recently experienced the exact same situation with my DSW pro 500. I am curious did you get yours repaired and if so, what option did you go with?
 

Attachments

  • D4549C13-EA60-448A-B369-5F43F063ECF7.jpeg
    D4549C13-EA60-448A-B369-5F43F063ECF7.jpeg
    358.4 KB · Views: 0
I figured I would search the internet again before selling my PW-500 for parts and found this feed. I checked the above pictures and cracked open my sub to see if I had the same issue. Yes. Same problem. One of the connectors completely melted off. I ordered a new one and will see if I can get this sub going again. 2-3 weeks delivery from China. Photo 2020-04-27, 10 16 42 AM.jpg
 
I figured I would search the internet again before selling my PW-500 for parts and found this feed. I checked the above pictures and cracked open my sub to see if I had the same issue. Yes. Same problem. One of the connectors completely melted off. I ordered a new one and will see if I can get this sub going again. 2-3 weeks delivery from China. View attachment 240871
Where did you order the amp plate from by chance?
 
Back
Top