Clear-Com PIC-4704 - Manual (Page 20)

P I C - 4 7 0 4 , M A - 7 0 4 & A X - 7 0 4 I F B S Y S T E M 2 - 1 0
SETUP AND SYSTEM CHECK
After program sources are connected, assign them at the PIC-4704 to the talent
channels with the Program (Source) select switches for each channel’s interrupt
and non-interrupt talent feeds (see Figure 1-3). Set the switch left to select source
1 or right to select source 2.
Set the attenuation or dip of the program feed during cuing with the dip
adjustment trims (see Figure 1-3). They can be set from no attenuation (fully
CW) to greater than 50 dB (fully CCW).
Before adjusting the Program Level trims at the PIC-4704, the volume at the
Talent Receivers must be adjusted (via the control on the Receiver) for a
comfortable cue audio level in the earpiece or headset while someone is cuing
that talent position from one of the access locations.
The Program Input Level controls permit use of program levels ranging from –20
dBu to 0 dBu. At full clockwise rotation, the gain from program input to the IFB
line is approximately unity. So at maximum gain setting, a program level of –20
dBu will be roughly the same volume on the IFB line as the cue audio. If the
program source level is around 0 dBu, the controls will have to be set near full
counter-clockwise rotation to match the cue audio level on the IFB lines.
The only adjustment possible at the MA-704 is a trim (± 5 dB) of the mic gain.
Adjusting this gain should be necessary only in unusual circumstances, because of
the mic preamp’s limiter.