500 WATT RADIOBEACON TRANSMITTER
ND2000A-02x-xx0
Page
4-16
15 January 2005
Table 4-8
Monitor PWB
Controls and Indicators (Continued)
PANEL MARKING/
REF
FIG
NOMENCLATURE
FUNCTION
DES
NO.
USED IN TEXT
A10R107
MD-34
REFL PWR CAL
Adjusted to precisely set the reflected power indication
on the
TEST
meter, when the
TEST
switch is set to
REFL PWR
, during test/adjustment.
A10R114
MD-34
SET 100 % MOD
Adjusted for 100 % modulation indication on the
TEST
meter when
TEST
switch S6 is set to
MOD-SET
and
transmitter is operating in CW mode.
A10R115
MD-34
SPEAKER VOLUME
Adjusts the loudness output of
SPEAKER
LS1.
A10F1
MD-34
Monitor B-V
Fuses the B- voltage to monitor PWB A10.
A10S1
MD-34
Side 'B' Test
When set to
TEST
,
inhibits the RF input to the
harmonic filter assembly and enables the user to
perform adjustment/repair procedures on the
B
side
(side
B
will be operating into an open circuit).
A10S2
MD-34
Side 'A' Test
When set to
TEST
,
inhibits the RF input to the
harmonic filter assembly and enables the user to
perform adjustment/repair procedures on the
A
side
(side
A
will be operating into an open circuit).
A10S3
MD-34
SPEAKER
Switches an audible signal to
SPEAKER
LS1 for local
monitoring of the detected modulation.
Do not change setting of Side
A
Test switch or Side
B
Test switch when transmitter
is turned on. Always set
RF
switch to
OFF
before changing settings.
