Looking for sub circuit board help - AVS Forum | Home Theater Discussions And Reviews
Forum Jump: 
Thread Tools
post #1 of 1 Old 04-13-2018, 07:21 PM - Thread Starter
084runnerltd's Avatar
Join Date: Nov 2017
Posts: 147
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 76 Post(s)
Liked: 43
Looking for sub circuit board help

I posted this in the “subwoofer” section and it was recommended that I post it over here....

I have a 12” powered sub from Monoprice that died while my SVS sub was on order, I have the new sub hooked up and decided to set up a 2 channel setup in our living room.

I figured I would try the Monoprice before throwing it in the garbage. I plugged it in and it turned on and played the appropriate amount of bass....I turned up the volume and it went into protection mode.

I should say that I assume it is protection mode, the green light on the back of the sub turns red and I get no volume. Unplug it and plug it back in, 95% of the time the light is red....but at times the sub will work as normal, until the volume is turned up too high, then cuts out.

I tore off the circuit board, thinking I might find a loose connection, nothing.

Looked for a fuse...couldn’t find anything.

Tested the speaker itself, it works fine.

So there is something jiggy with the board. I couldn’t find anything that looked burned on the board.

None of the capacitors appeared to be blown. I tested the diodes, that I could get to, and they all seemed to be working as normal.

Any ideas? Or is there a cheap board I can purchase to replace it?

It is a cheap sub, but for the money, I was very happy with it and would like to put it to use.

Lastly, I am not knowledgable on circuit boards (couldn’t find a schematic)....learned about diodes and capacitors while researching how to fix it...so please explain your answers as if I am a 5 yr old.

084runnerltd is offline  
Sponsored Links
Reply DIY Speakers and Subs

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off