Vermona DRM1 MKIII - Broken? (Desperated)

[mojito]

Hi,

my Vermona DRM1 MKIII is behavouring in strange way it never did before. I haven't use it for maybe 4 months, today I turned it on and:

1. Louder noise than last time i used it (That continuous "hum" the machine generates and changes if you turn the knobs. In the beginning you could hear, but i think it was normal as it is an analogue device. But now it's quite louder and can be really appreciated in the recording).

2. When volume knobs pass half the way sound starts distorting so much (thing that didn't occur before), even when the master volume knob is so low. This happen especially with the kick.

3. It seems some channels change their behavour randomly. For example, I've just played the Snare with the Attack at the highest and the machine has generated low freq. sounds the snare sounded like a kick. Then I lowered the Attack and then high again and played the snare, the low sounds desapeared. :S

It's seems there's something broken and I don't know what to do.
Maybe a clue is that being used with headphones through the headphones output it sounds OK, as always, a little bit of noise, but nothing extraordinary, the normal.

I need help as I'm so desperated. I haven't use it a lot and it's broken!
Any ideas?

Thanks in advance.

[mojito]

anyone knows which problem could it be?

[Notron Fan]

Have you checked the cables and mixer settings (a -10/-4 db switch hasn't gotten switched accidentally)

[mojito]

No. I haven't changed anything since the last time I used it. I've checked it and there's nothing different or changed accidentally. :S

[mojito]

anyone?...