13
2. Remove the screw from the center of the volume control and remove the knob.
3. Lift the clear plastic cover on the control and spray GC SPRA-KLEEN, LPS Contact
Cleaner, or equivalent into the control. Replace the knob and rotate the control
several times.
4. Replace the screw and close the case.
B
UZZING OR HUMMING NOISE IN SOUND SYSTEM
.
þ
There is nothing wrong with the T17 Transmitter. One or more pieces of equipment in
the sound system are being disturbed by RF (Radio Frequency) signals produced by the
T17. The most likely suspects are your amplifier, mixer, or tape deck. The RF gets into
the other equipment primarily through the power cord, speaker wires, or unshielded
inputs, all of which can act as antennas. Try the following steps.
1. Move the Transmitter away from the other sound equipment.
2. Make sensitive equipment more immune to RFI/EMI. The manufacturers of your
audio equipment may offer application notes for this purpose. Williams Sound offers
a document giving suggestions for improving RF immunity in existing audio
equipment. (
Technical Bulletin: Buzz Or Hum In The Sound System,
FRM 531)
Unless you have the necessary technical skills, this is best left to a qualified
electronics repair technician.
Williams Sound
®
Helping People Hear
Summary of Contents for PPA VPE
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