Lectrosonics UCR195 - Manual (Page 9)

Compact UHF Receiver
REAR PANEL CONTROLS AND FUNCTIONS
EXTERNAL POWER JACK
The UCR195 can be powered from external 12 to 18
Volts DC applied directly to this jack, or conventional
110 VAC sources via the supplied CH12 adapter. The
UCR195 is protected from reverse polarity conditions
which prevents damage if a positive ground power source
is applied. The center pin of this jack is POSITIVE.
AUDIO OUTPUT XLR JACK
This jack is a standard 3 pin XLR connector since this is
the most commonly used type of connector. Audio High
is on pin 3, audio Low is on pin 2, and audio Common is
pin 1. The XLR body also provides a sturdy pivot for
the battery door mechanism.
RANGE SWITCH
The audio output range switch is located inside the
battery compartment and is the switch nearest the front
panel. There are three positions: Low (toward the front
panel), High (center position), and Fixed +8dBm (toward
the rear panel.) This switch controls the range of adjust­
ment of the front panel Audio Output control. In the
Low position the adjustment range is from –50dBm to –
20dBm, the High position allows an adjustment from –
30dBm to 0dBm, and the Fixed position sets the audio
output to a fixed +8dBm with no front panel control.
PILOT TONE DISABLE
Inside the battery compartment the switch nearest to the
rear panel is the Pilot Tone Disable. This is a two
position switch. The position toward the front panel is
the normal operating position and allows the pilot tone to
enable or disable the receiver audio output. The other
position, toward the rear panel, will disable the pilot tone
action and will cause the receiver audio output to always
be enabled, even in the absence of a transmitter signal.
This position is only used for troubleshooting and should
never be set during actual use. When the pilot tone is
disabled with this switch, the Mod meter on the front
panel is also disabled.
1 2
3
To open the battery compartment door,
push the door away from the case with your
thumb, then swing open.
XLR Audio Output jack
CH12/Ext DC Input jack
Audio Output Range switch
Pilot Tone Disable switch
Battery
Compartment
-50 to -20
dBm
-30 to 0
dBm
+4 dBm
Fixed
Pilot Tone
Defeat
Pilot Tone
Engaged
Figure 3 - UCR195 Rear Panel
Rio Rancho, NM – USA 9