thb@unisoft.UUCP (Tim Bessie) (06/03/85)
Has anyone else ever had this problem:
While waiting for my tuner to arrive at the place I bought the rest
of my system from, I playing around a little. Since I had a little, cheapo
Sanyo walkman-type tape player, and a good tape deck on my system, I
attached the cheap player to TAPE-2, and experimented with some dubbing...
seemed to work fine.
I then attached the walkman to the TUNER input of the amp (they have
the same sensitivity and impedance ratings, so it looked OK). Well, what
happened was this... everything seemed to work OK, but when I set the
amp so that it wouldn't listen to ANY device, and turned the volume down
to 0, the speakers still registered sound... very faintly, yes, but what was
being played on the walkman was coming out of the speakers.
I thought, "Maybe the walkman is inducing a current in the surrounding
wires," so I moved the connecting cables around, so that they weren't
near each other. I also used different power sources, etc. No change. The
speakers still played what was on the walkman. So, I attached the GOOD deck
to the tuner input, and tried the same thing... THIS time, the speakers
did not pick up anything... everything worked as it should.
No, I can only think of a couple ways this might have happened:
1) The connector from the walkman is cheap, and was inducing
a current in the normally well-protected speaker cables.
2) The tuner input circuit is close to the speaker-output
circuit, and the walkman put out a lot more than the
5V overload rating that the tuner-input has, and was
bleeding through to the speaker-output.
Could it be one of these? If #2, could that possibly damage the amp?
Any ideas would be much appreciated.
- Tim Bessieron@brl-tgr.ARPA (Ron Natalie <ron>) (06/04/85)
The tuner on my Technics preamp bleeds over to the aux imput. Fortunately the tuner has an output level knob that I just turn down. -Ron