200 Series Owners Manual v.1
7-6-06
Page 6 of 9
Input trimmer controls in the transmitters enable you to maximize performance
for a particular microphone or guitar sensitivity, or to adjust for different acoustic
input levels.
Adjusting Input Level - UniPak Transmitter
Slide the battery cover off the top part of transmitter and remove the screwdriver
from its clip (Fig. E). Gently turn both the “MT” (Mic Trimmer) and “GT” (Guitar
Trimmer) controls to their full counterclockwise positions (toward “LO”).
• Microphone: Adjusting input level
Gently turn only the “MT” (Mic Trimmer) control all the way up (clockwise, toward
“Hi”). Check for excessive gain by speaking/singing into the microphone at
typically-loud levels while watching the receiver’s AF Peak indicator. If the AF
Peak indicator does light, turn the MT control slightly counterclockwise until the
AF Peak indicator no longer lights with maximum audio input to the transmitter.
• Guitar/Instrument: Adjusting input level
Gently turn only the “GT” (Guitar Trimmer) control all the way up (clockwise,
toward “Hi”). Check for excessive gain by playing at typically-loud levels while
watching the receiver’s AF Peak indicator. If the AF Peak indicator does light,
turn the GT control slightly counterclockwise until the AF Peak indicator no longer
lights with maximum instrument input to the transmitter. After adjusting input
level, return the screwdriver to its clip and reinstall the battery cover. No further
transmitter gain adjustments should be needed, as long as the input device and
the acoustic input level are not changed.
Adjusting Input Level - Handheld Transmitter
Unscrew the lower body cover and slide it downward, exposing the screwdriver
and Gain Trimmer control (Fig. H). Remove the screwdriver from its clip. Gently
turn the control to its full clockwise position (toward the side marked “H”), the
factory setting. Check for excessive gain by speaking/singing into the
microphone at typically-loud levels while watching the receiver’s AF Peak
indicator. If the AF Peak indicator does light, turn the Gain Trimmer control
slightly counterclockwise until the AF Peak indicator no longer lights with
maximum audio input to the mic/transmitter.
Return the screwdriver to its clip and close and secure the lower body. No further
transmitter gain adjustments should be needed, as long as the acoustic input
does not change significantly.
CAUTION! The small trimmer controls are delicate; use only the supplied
screwdriver. Do not force the trimmers beyond their normal 190o range of
rotation.
Return the screwdriver to its storage clip when not in use.
