SRV-330 HUGE self-noise

[tibasse]

Hello!

I have a Roland SRV-330, and it was working perfectly for 15 years. Last week, I turned it on and there was a huge noise coming out of it. So loud I can't hear the reverb... In fact, I don't know if there is reverb happening or not.
Everything eles work like normal, the display, the menus. And the noise changes when I select different reverb algorithms.
Here is a sample of the noise I hear on most of the algorithms. Any idea on what suddenly happened? Is my unit dead?

Thanks in advance!

[acreil]

Bad RAM IC? Or bad solder joint or circuit board trace? It sounds like the DSP is still running, at least.

[tibasse]

Thanks acreil,

Is it something that's worth investing money in? I don't think I can find bad IC's by myself....Finding bad solder joints is the most advanced repair technique I can do!!!!!!

[acreil]

Originally Posted by tibasse

Thanks acreil,

Is it something that's worth investing money in? I don't think I can find bad IC's by myself....Finding bad solder joints is the most advanced repair technique I can do!!!!!!

Considering what they're worth versus the probable complexity of a repair (SMD rework? obsolete and/or custom components?), I wouldn't say it's worth going that far.

You can possibly narrow the problem down a bit by changing patches and parameters and observing how it affects the output. But if it's not corrupted patch memory or something else really obvious (bad solder joint, unseated connector or chip), it's not likely practical to repair. I'd just stick it in the back of the closet and forget about it.

[tibasse]

Thanks!
I'll take a look inside and if nothing is clearly the problem, I'll find another unit.

[homestar328]

Sounds like a bad DAC. The only source I've ever found for this chip is Roland, and they charged me something like $75 for it. Also, it's a surface-mount device, so it's not trivial to solder into place.