DUO sound problems...again!

[RadiantSvgun]

I was playing my DUO earlier, and the sound got really low, and then faded out. I can still get some sound through the headphone jack, but its low. Has the DUO overheated? I just got the sound repaired, but the DUO smells like hot plastic, so I'm wondering if thats what happened. Or is it just the Audio/Video cables? I really don't want to send the system back if I don't have to.

[RadiantSvgun]

Even after letting it sit for 3 hours, the sound is still messed up. And when I turned it back on, it smelled awful, like something was burning. I'm using the proper power supply; I'm guessing I'll have to send it back to omnedon since its still under warranty. I had no idea these things are as fickle as a early model PS2....

[ooXxXoo]

It is almost for sure that your problem is the sound capacitor.This is a very common issue with the Turbo Duo's.It can be easily fix simply by replacing it.The problem itself relies with the location of this capacitor,it is very close to the IC regulator Heatsink and it can fried with the heat that the regulator provides after a while of playing.NEC decided to put in there dry capacitors.There is a replacement tutorial somewhere,but you going to have to google around.I don't remember where it is.
What was the problem with your Duo before and where do you send your system for service?

[ooXxXoo]

If you are not able to find it I could send you a picture of the location of the capacitor.I have been thinking adding a cooling fan there,before this problem happens in mine.If that person has replaced the capacitor,maybe missplaced the values.(+,-)

[RadiantSvgun]

The problem before was the sound. I sent it to oldschoolgamer.ca. They do some incredible work, as they also added a region switch to the duo. The sound was working fine until today. However, the site also offers a 90-day warranty, its just a matter of me going into civilization to find a UPS store. I know sometimes old school systems can overheat, or the cables can go bad, but I've already tried letting the system cool, and using earphones, which I can get a very low sound from it. However, according to the invoice, the capacitors weren't the problem at the time. I don't have a soldering iron anymore, and the DUO is something I do not wish to risk destroying.

EDIT: I've unplugged the DUO, since when I turn it on, it smells like death.

FYI. oldschoolgamer.ca is run by the moderator of this forum, omnedon.

[ooXxXoo]

Everydoby makes mistakes.They seem to do some great work and I'm sure they're very reliable.Send it back under guarantee terms.I will recommend not to play the Duo for now.!

[SnowKitty]

if they said it wasnt the capacitors they were probably being lazy. i would have re-capped it either way. i heard that around the early 90s there were some bad batches of capacitors going around. which is a common issue with the duo, geme gear, turbo express, etc. the caps will eventually go bad anyway so i prefer to replace em before they crap out.

[RadiantSvgun]

if they said it wasnt the capacitors they were probably being lazy. i would have re-capped it either way. i heard that around the early 90s there were some bad batches of capacitors going around. which is a common issue with the duo, geme gear, turbo express, etc. the caps will eventually go bad anyway so i prefer to replace em before they crap out.

I highly doubt they were being lazy. I might have just had some bad luck with this unit. But that burning smell is the sound capacitors?

[ApolloBoy]

But that burning smell is the sound capacitors?

Most likely, since capacitor electrolytes have a rather nasty smell.

[ooXxXoo]

Yes they do!..The other day I replaced my NES 2200uf 16V capacitor,by accident I misplaced the values in the board and all hell broke loose when I power the system.The capacitor blew up and that plastic burning smell was all over.

[RadiantSvgun]

Thanks for the help guys. I'll make sure not to turn it on, and when I send it back, I'll ask if they can install a cooling fan.

[SnowKitty]

I highly doubt they were being lazy. I might have just had some bad luck with this unit. But that burning smell is the sound capacitors?

i wouldn't know. the only way to really find out what the burning smell came from is to open it up.