Hi Guys, I have no sound out of the backbox speaker channel of my Judge Dredd. Both channels were working fine and then one day I started getting loud popping and crackling out of the backbox panel speakers. I also noticed that the heatsink for the amplifier for that channel gets super hot after a minute of being on while the sub woofer channel stays pretty cool for as long as I play. I replaced the C20 Cap associated with that channel and the other cap at C32. Also replaced the amplifier transistor , nothing helped. Any suggestions would be greatly appreciated. Thanks.

Yes, and I actually changed out the 5.25 speaker because it was aftermarket. I still had the original and put it back in with no luck.

These are the components I've swapped out so far. Should I have also changed the counter parts for the cabinet channel even though it is working fine? I'm afraid I'll make it worse if I do that but will do it if suggested by someone with experience.

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Anyone?? Should I change both the caps and both 1u63v caps also? If the heat sink is getting super hot, does that mean it is getting too much voltage? Could it be a resistor?

It's lonely in here.....echo, echo, echo, echo

Thank You Hawk. Do I check continuity with ohms reading? On a multi-meter?

You mean check the power coming from the Amp? at U28?

Ok got it. I'll be home soon and then I can check. Thanks.

If worse came to worse, could I run all three speakers off of the one amplifier? Or will that do major damage?

Do I test it with the machine on?

I tested both channels with the game on , I get a very high reading from the bad channel and very low stable reading from the channel that is working correctly. Not sure what this means, hopefully one of the very helpful pinsiders can shed some light.

I replaced it once already but I'm thinking I might have pulled a couple through holes out with the old transistor amp. Maybe I'll try replacing it one more time and fill in the holes with solder. Drill a tiny hole through the solder.

Yeah I hear you, I think I got too big for my bridges. Unfortunately I don't have another dcs board but a friend of mine does so I'll try his soon. Thanks for the help. I'll let you know what I came up with.

Ok thank you very much for that info. I was thinking it might have something to do with a resistor because wouldn't that be why is getting so hot? It's getting too much voltage or power. Problem is Im not too sure how to test things on circuit boards.

I see. Thanks guys. I will be home tomorrow and test it. Power should be on right?

Ok thanks for the tip. Very helpful Info.