Audio Pro Ace bass 3 subwoofer

pfab

pfab

New Member
Hi, my subwoofer needs repair and i wonder if anyone might have a service manual to share?
Have been searching without luck so far.
I have had this Audio Pro Ace bass 3 in use for over 15 years and like it very much.
Would be great to bring it back to life again.

Thanks/Peter
 
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Thanks for the welcome!
The background is that the sub quit working with 0 output back in 2021.
I took it to a repair shop who fixed it by replacing a few capacitors and fixed some cold solder spots.
It worked perfectly until last year and i took it back to the same shop.
They had it for a long time but finally called and told me it worked again.
Brought it home and it failed directly, this time it gave out a loud noice with a high frequency for a sub.
Only stopped after pulling the power cordfrom the mains.
(Gave up on the shop and got my money back this time)
Now it has been sitting unused and I would like to try and find the faulty part/parts.
I have removed the amplifier from the sub and tried to visually look for any leaking or bulging electrolytics.
But nothing found with visual inspection.
To do the measurements i need the service manual
 
Sounds like the plate amp is bad. Parts Express has replacements. Maybe someone with more experience will chime in.
 
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