On or about 30 Jan 98  10:54:28, John Leosco did utter
HUMMmmm to Phil Roberts.
   Greetings John
 -=> Quoting Phil Roberts to John Leosco <=-
 
 JL> It just get wierder..
 JL> I reversed every itteration of cords.  Same Hum.
 JL> Get this...I can turn off the TV and even unplug the TV, and the hum
 JL> still exists as long as the output jacks from either the TV or VCR are
 JL> tied to either the preamp or amp.  It's like the amp doesn't like the
 JL> input loading presented by the TV.  Any other ideas?
 JL> Later.
Sounds like there is a problem with the output amps inside the TV. Have you 
tried the TVs output into another audio system? How about just using the VCR 
output into the audio system? That's how I do things here, but I do have the 
option to use the TVs oputput to feed the audio system.
As a last resort, you might have to lift the ground on the audio cables at 
the audio system end of the cable. In other words, make all the connections 
as usual, except at the cable going into the preamp. There, do not connect 
the ground wire to the RCA connector. If the TV is under warrantee though, 
I'd absolutely have them look at the output stages of the amplifier sections.
Did understand from your original post, that you have tried the fixed volume 
outputs as well as the variable ones? Perhaps the fault is a little further 
upstream of the output amps. If there's hum on both channels, on both 
variable and fixed feeds, there could be a problem with the RF demodulator? 
Is the audio system, and TV components plugged into the same phase of the AC 
service? If you turn off one breaker in your service panel, all of your audio 
components should go off with that one breaker.
Good luck, and keep posting is you don't get it figured out. Sounds like an 
interesting problem!
james.bradley@t8000.com
James Bradley (Sysop) 1:134/213.0
... Please, God, not *another* learning experience!
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