Lectrosonics R170 - Manual (Page 7)

OPERATING INSTRUCTIONS
SET UP AND OPERATION SEQUENCE
1) CONNECT POWER CORD -- Plug the connector into the jack labeled "12 VDC ". Insert the plug
fully into the jack.
2) ATTACH AND EXTEND THE ANTENNA FULLY
3) CONNECT THE AUDIO CABLE/S
A. For playback from a tape player, plug into "AUDIO IN"
B. The sound system plugs into "BAL MIC"
C. An alternate plug for the sound system is "HI Z BAL"
D. To record, plug a tape recorder into "LINE OUT". Multi-channel applications are also possible
using "LINE OUT" and "AUDIO IN".
4) SET FRONT PANEL SWITCH TO "AUDIO MUTE"
Check to see that the red POWER LED lights up
5) ADJUST TRANSMITTER "MIC LEVEL" (See transmitter manual)
This is perhaps the most important step in the set up procedure. See your transmitter manual for
specific instructions on the proper gain adjustment of your transmitter. With some transmitter
models you will need to observe the MOD LEVEL LED’s on the receiver front panel as you adjust
the gain on the transmitter.
6) SET FRONT PANEL SWITCH TO "ON" POSITION
7) SET THE OUTPUT VOLUME ATTENUATOR KNOB IN THE MIDDLE OF THE "NORMAL"
RANGE
The input levels on different recording and PA equipment vary. Try different settings and listen to
the results. The volume attenuator works like a basic volume control knob. If the output of the
receiver is too high, you may hear distortion or a loss of the natural dynamics of the audio signal.
Turn the control knob down or counter clockwise. If the output is too low, you may hear steady
noise (hiss or hum) along with the audio. Turn the control knob up or clockwise from the midpoint
of the normal range.
INDICATOR QUICK REFERENCE
RF -- Lights up when the transmitter is turned on. This indicates that the receiver is getting an
adequate RF signal (carrier) from the transmitter.
POWER -- Lights up when the receiver is properly connected to a power supply and switched on.
TRANSMITTER MOD LEVEL -- The green LED lights up when an audio signal is present at a high
enough level to produce a good signal to noise ratio. The red LED lights up when the audio level is too
high and is being compressed in the transmitter. Extremely high audio levels may cause distortion. A
very low audio level will produce a poor signal to noise ratio (audible hiss will be heard along with the
sound).
REVIEW THE TRANSMITTER INSTRUCTION MANUAL FOR PROPER ADJUSTMENT OF THE
TRANSMITTER MIC LEVEL OR GAIN
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