Tron no sound. Anyone fix theirs!!!

khyron65

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My Tron has no sound at all!!!!!! I installed a switching power supply and everything works perfect except the sound. When I bought the cab it didnt have sound among other problems.

Probably a sound board issue. MIght just have to buy a %100 working pcb.
 
Everything is getting power, and nothing comes through the speakers, just dead silence. Is there any test I can do to make sure my sound board is working? Right now I am leaning toward the sound board being toast, problem is, when I run the diagnostic it comes back fine. The amp looks good and there are two speakers, what would be the chance they would both be completely seized up? If the amp was bad I would imagine I would hear some crackling or humming or something.
 
The dip switch on the I/O sound board on top of the stack has a test setting.

I think you flip dip 1 to on and then dip 3 is the oscillator test. Power it up like this or hit the red reset switch on the board.

It just emits a constant tone.

dip 2 is a RAM/ROM test- yellow LED fast flash = bad ROM slow flash = BAD RAM

dip 3 = filter test. I don't remember what this does.

There is a channel test and a general sound effect test via the menu in test mode.
 
also check the cable that goes between the pcb and the amp.. there sa red black and bate shield wires.. on mine i had no sound because that shield wire was actually broken..


im actually still after my tron, ive got ps issues again :( stupid mcr!!!
 
i hate my tron..messed with it today and made it worse lol.. ineed to put a new fuse block init andrecheck.. i hadno idea how bad it was..
 
See if you have any working boards that use the AY*whatever* sound chips that Tron uses... odds are against both of them being bad, but you never know.

I had an issue with my board where I was getting no audio, but I was also getting a sound board error on boot, ended up being bad RAM.

What's good about Tron is if NONE of the sound works... that usually tells you something about the issue. Since everything is done in pairs (2 chips, each covering half the channels) and the sound amp board having two amps on it (each speaker)... it would require a dual fault, and that's very unlikely to happen. So, it's usually something like a loose wire (had the shielded wire go out and screwed up my sound once) or a bad connector or a cold joint.

As with pretty much ANY MCR board problem... I'd start by replacing the ribbon cables, then going from there.
 
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