[Rfu-station] Re: [rfu-tech] partial resolution of speakers / guest phones issue

[Mike Lehman]

Joe,
Thanks for looking into these problems and fixing what you could.

Everyone,
I am cc-ing the RFU-station list so that:

1.) You know some of the recent problems should be corrected. The 
monitors are working on one side. The problem with the monitors' sound 
is just in the studio, but at least you can hear part of what's going 
out now. The problem with the phone interface may now be fixed if the 
improper connection that Joe corrected was the only problem. Let us know 
if it works or not, as Joe didn't say whether he got a chance to check 
the phone part of things. Radio:Edit doesn't take many phone calls...:)

2.) This problem was caused by someone rewiring things because they 
thought they knew what they were doing...
but they obviously did NOT know what they were doing!
Everyone else had to suffer with the problems for more than a week 
because of their incompetence.

3.) Please report problems with the equipment to rfu-tech at ucimc.org. 
Tech will try to fix things as soon as possible, but we could use your 
help. Please volunteer if you'd like to learn how to help.

But please don't rewire or fiddle with things that you are not competent 
to test for correct operation.
Mike Lehman

Joe Futrelle wrote:
> I did some troubleshooting and discovered a *very bad* patching error
> behind the board.
>
> The symptoms were:
> - PGM 2 meters constantly pegged
> - dead guest phones
> - dead studio speakers
>
> The problem was that the main output from the board has a splitter on it
> and the splitter was routed into one of the guest phone *outputs*. Output
> to output is never good. I pulled that cable and the PGM 2 meters returned
> to normal and guest phones work now (I was able to get them to drive
> headphones before, but the only sound that would come out of the
> headphones was a horrible deafening clicking sound--I suspect the
> output/output patch was causing high-frequency feedback.)
>
> The amp for the studio speakers was powered down. I powered it up and
> confirmed that I was getting a good signal by plugging the headphones into
> the amp. So far so good, but when I switched the speakers on I'm only
> getting sound from the right speaker. The connections from the amp to the
> left speaker look fine on both ends, but I may have missed something.
>
>