Operating instructions
6888882V04 19
Equipment Turn-On
1. Apply power to the RM125/RM125R by setting its AC power switch to ON (up).
2. Set the AC power switch on the PS unit to ON, and monitor its indications. The expected
indications, as well as what to do if a problem is detected, are described in Table 7.
3. Turn the RM125/RM125R ON/OFF switch and volume control clockwise and adjust for a
comfortable listening level.
4. The 1 kW amplifier is also turned on. Monitor its power-up indications. The expected
indications, as well as what to do if a problem is detected, are described in Table 7.
5. If necessary, select the prescribed channel and operating mode of the RM125/RM125R. Make
sure that the RM125/RM125R is programmed to use the 1 kW amplifier (you should see AMP
on the PROG>RAD>OPTS>ACC menu).
Table 7. RM1200 Power-up Indications
Unit Expected Indication What to do if not …
AC ON indicator lights Check that AC power is available, and that the PS unit
is properly connected to the AC distribution panel
PS Unit
OUT 1 and OUT 2 indicators light.
NG 1 and NG2 indicators off
The PS unit requires service.
Turn the PS unit off: do not attempt to continue using
the 1 kW amplifier until the problem is corrected. You
can still transmit and receive using the
RM125/RM125R (maximum transmit power – 125W)
by selecting NONE on the PROG>RAD>OPTS>ACC
menu.
All the front panel indicators flash
together a few times as the unit
performs its power-up initialization
sequence, and then turn off
If the FAULT indicator lights, a fault has been detected
in the 1 kW amplifier (you may read the problem by
means of its from panel LCD). Service the 1 kW
amplifier.
However, you can still transmit and receive using the
RM125/RM125R by selecting NONE on the
PROG>RAD>OPTS>ACC menu.
If the BYPASS indicator lights while in the transmit
mode, make sure to select AMP on the
RM125/RM125R PROG>RAD>OPTS>ACC menu.
1 kW PA
The 1 kW amplifier tunes to the
RM125/RM125R operating frequency.
After successful tuning, its front panel
LCD displays the selected frequency
Check for proper connection of the RF and control
cables between the RM125/RM125R (or other exciter
unit you are using), and the 1 kW amplifier.
If tuning fails even after turning the equipment off and
on again in the proper turn-on sequence described
above, you are still able to transmit and receive using
the RM125/RM125R by permanently bypassing the
1 kW amplifier. For the RM125/RM125R, you bypass
the 1 kW amplifier by selecting NONE on the
PROG>RAD>OPTS>ACC menu