Polk Audio DSW Pro 500 - No power

Reality

[H]ard|Gawd
Joined
Feb 16, 2003
Messages
1,920
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
 

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atarione

2[H]4U
Joined
Mar 17, 2011
Messages
2,077
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..
 

Reality

[H]ard|Gawd
Joined
Feb 16, 2003
Messages
1,920
if I could find those parts I could probably repair it myself
 

Brian_B

2[H]4U
Joined
Mar 23, 2012
Messages
3,356
Amp plates are pretty inexpensive third party

So are small external amps to drive the speaker

Just some other options
 

Reality

[H]ard|Gawd
Joined
Feb 16, 2003
Messages
1,920
Gonna drop off the whole amp plate to a repair guy and see what he says
 
Joined
Apr 9, 2020
Messages
1
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?
 

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justin00

n00b
Joined
Apr 27, 2020
Messages
1
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
 

Reality

[H]ard|Gawd
Joined
Feb 16, 2003
Messages
1,920
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?
 
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