Hi Len,
On 12/19/2019 01:04 PM, Len Ovens wrote:
On Thu, 19 Dec 2019, Dave Phillips wrote:
My audio device has been an M-Audio Delta 66 + Omni I/O breakout box
that has served me well for many years. Alas, something is now
causing a severe problem with it. When I turn the unit on in the
morning the clip and input lights are solid red and green and remain
so for up to five or more minutes before they go off. Adding to that,
my portable room heater is now causing a terrible hum through my
speakers. I tried another heater, got the same results.
So, is the problem likely the Delta card ? I have a replacement for
it that I could swap out, but I thought I'd check with the experts
first. Or should I get an electrician to check out the wiring in my
room ?
"clip and input lights are solid red and green" These lights are on
the omni I am guessing and so likely the problem is with that box
rather than the D66 card itself. Using mudita24 (not envy24control) on
the Analog Volume tab do you see high level in? (the level for the
input is in text just under the port name (ADC1-3) and can be reset
with the "Rest Peaks" button in the lower left corner) If there is no
level or -inf it shows "(off)". If you are seeing the same high level
right after turn on, try disconnecting the omni i/o and see if the
levels are now (after reset) "off". This test should show that the
problem is in the i/o box.
The most likely thig to be wrong is a capacitor. With the i/o box open
find a larger cap probably close to where the power comes in and after
warm up try spraying this with some kind of "freeze spray" to see if
the problem comes back. replace tha cap that when chilled causes the
probalem to come back. Probably replace the power supply cap just
because... (higher value is ok)
Btw, the unit showed the same behavior when I plugged in a floor fan on
the same line. And at this point it's misbehaving even when the room
heater is turned off, so yes, I'm thinking that the Omni I/O is busted.
Fortunately I have an older simple break-out connector for the card,
I'll take a look at the box in the meanwhile.
Thanks for the tips, Len, I'll let you know what happens.
Best regards,
dp
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