Nautel FM10, Технические инструкции

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10 000 WATT FM BROADCAST TRANSMITTER
FM10
Page 3-13
15 July 1997
Table 3-2 Control/Monitor Function Controls and Indicators (Continued)
PANEL MARKING/
REF FIG NOMENCLATURE FUNCTION
DES NO. USED IN TEXT
A13A1DS15 MD-7
MD-8 RF ON When turned on, indicates the control/monitor PWB's
on/off circuitry is set to its 'RF on' state and the RF
power stages are enabled.
A13A1R5 MD-8 FWD PWR METER CAL Adjusted to provide a precise forward power reading
on
FORWARD/REFLECTED POWER
meter.
A13A1S1 MD-7
MD-8 LAMP TEST Turns on all indicator LEDs when pressed and held.
Indicator LEDs return to their previous state when the
switch is released.
A13A1S2 MD-7
MD-8 ALARM RESET Resets all latched alarm circuits (
ALARM
displays and
remote monitoring circuits) to their unlatched state
when actuated. Associated
ALARM
lamps will be
turned off and remote status outputs will be switched
to their non-alarm state. The alarm displays/circuits
associated with any control circuit that is in an alarm
state when the switch is released will return to an
alarm status.
A13A1S3 MD-7
MD-8
MODULE
(INHIBIT)RESET
Resets inhibit signal to switching power supply
modules A thru F.
A13A1S4 MD-7
MD-8 LOCAL CONTROL Selects local control of the RF power stage's on/off
status.
A13A1S5 MD-7
MD-8 REMOTE CONTROL Selects remote control of the RF power stage's on/off
status.
A13A1S6 MD-7
MD-8 RF OFF Turns off RF power stage when pressed and released
by setting control/monitor PWB's on/off circuitry to
its off state.
A13A1S7 MD-7
MD-8 PROTECT RESET Resets all latched protection circuits to their unlatched
state when actuated. Any influence the latched
protection circuit had on the RF output will be
discontinued. This action does not disable the
protection circuit and it will continue to respond to
any out-of-tolerance condition to the parameter it is
monitoring.