Hey All,
I have a Voyager which works perfectly, except to say that it periodically freezes on the front screen and partially or wholly shuts down. A switch on and off usually resolves the problem. It is intermittent and doesn’t seem to have gotten worse, but it does need fixing as it’s a source of unreliability.
What are the chances of this being capacitors in the power supply? I’ve fixed caps before in other gear. Worth a try? There are no accredited repairers where I live. Anyone from Moog here, if you wanna give me some advice that’d be appreciated.
I’m not from Moog but will offer this advice anyway. Electronics isn’t about chances and I recommend against a “maybe I’ll get lucky approach”. You need someone to observe whats happening when the unit freezes up. If the power supply is at fault (and yes, it could be a cap among many other things) measure the secondary voltages feeding the processor and supporting circuitry. No different than fixing a car that won’t start; you wouldn’t just change your starter motor or alternator without doing some diagnostics first.
Moog techs may have seen similar problems and it could be a known"signature". I would contact Moog tech support.
^ What Markyboard said. This is no place for guesswork. Troubleshooting of this nature is not for novices, especially if you don’t have the right tools.
regarding the fact that you’ll probably need schemes , which might be difficult to obtain from moog by local repairpeople, i’d say " send it to moog for repair"
I would guess these problems are the PSU. But before harming yourself and/or your Voyager, ask some electronic technician to check the power supply for you by measuring its output and using an oscilloscope to check for spikes, etc.
And once (s)he finds a problem, then it is time to check the cause of these. And maybe you need to recalibrate your Voyager. So better go for a Moog experienced technician for this.
Power supply is a good direction.
BUT
I had the same issue on a voyager.
Problem was the power distribution board. Its a small PCB with lots of soldered cables.
This cables are very poorly soldered. With a good glass you can see, that the 5V solderings became “cold”
After resoldering, the issue was fixed. Altogether this board is a bit weak quality, seems to be handmade soldered.
I heard about similar problems from other users, and this was always the same cause.
The power supply itself is a switched PS, bought module. Its a very solid
part and never heard about any problems with that.
So check the distribution PCB next to the power supply.