Voyager Old School - Noise and OSC3 switches linked

[stiiiiiiive]

Hey Mooguys.

As some of you might know, I'm the happy player of a Minimoog Voyager Old School since a week or so. I barely had the time to caress her yet, just played after unboxing enough to see how speical is this instrument, and to observe something weird to me.

The noise switch won't work properly unless the oscillator 3 switch is ON. That is, I have to switch on the oscillator 3 and turn its volume down to zero if I want some noise in my patch.
Second thing, which I'm very unsure of, is that the noise will behave oddly when touching one the of the MOD amount knobs. But again: I have to double check that.

I know the instrument has been at the UK Moog tech, so I guess it might be an intervention clumsy side effect, that happens. But it's also possible that the Moog was initially mounted this way because the guy who used to play it did not use the rocker switches but only the volume knobs. Anyway.

So is anyone here aware of such an issue? Thanks

[thealien666]

Definitely not normal behavior for the Old School version. The regular version might have some hidden feature in menus, or something, that might produce weird behavior sometimes (but not like the ones you mention however).

But not on the OS, which is basically a WYSIWYG machine.

From what I remember of my own OS, a few years back, it never behaved like that. Every was working normally: noise switch independent of other switches, and noise quality independent of MOD switches.

I suspect a previously possible clumsy repair job, and subsequent incomplete thorough check before returning it to customer.

[stiiiiiiive]

Thanks Alain. I feel the same about this.

No big deal so I'll use it as it is, and if some day I go to my Moog center -to have my LP repaired or CVed- I might bring them the VOS too.

Or I could try to solve that myself... Lately, I had to open a MP-201 since the LEDs of channels 1 and 2 were inverted; just the LEDs, not the switches.

[thealien666]

You could always open up the back of your OS and check for misaligned connectors, or loose/not fully inserted ones maybe ?

As for diagnosing the main board, I wouldn't even dream of doing so without the schematics. Once you see the board with its more than 800 parts, and their locations, you'll understand why...

[xmit]

Steve my man. I am gutted. And really upset about this.
Either it got a bit of rough handling crossing the channel ( unlikely - you saw how it was packed !) or Patrick at HHB Service has made a mistake when fixing OSC 3 a few weeks ago. I have a repair docket stating 'machine retuned & calibrated '. I'm really upset. That repair cost me the best part of £300. Now it's gone to you I guess it's impossible for me to go back to them as I can't prove it's a fault with the service now. I never even thought to check the noise switch - I just checked that Osc3 was working properly as that was the repair. Gutted

I feel that I should wire you some money back Steve ?
Mark