10 000 WATT FM BROADCAST TRANSMITTER
FM10
Page 5-16
01 October 2002
POWER SUPPLY CONTROL PWB
REPLACEMENT
5.10
Install a replacement power supply control
PWB as follows:
(a) Press the control/monitor panel's RF OFF switch
and turn off the MAIN POWER and all PWR
MDL (A thru F) and IPA circuit breakers.
(b) Disconnect all mating plugs to the power
supply control PWB and remove all mounting
hardware.
(c) Install the replacement power supply control
PWB using the hardware removed in step (b).
Reconnect the mating connector plugs with
their associated connectors on the PWB.
(d) Turn on the MAIN POWER
and all PWR MDL (A
thru F) and IPA
circuit breakers.
Simultaneously press the control/monitor
panel's OUTPUT POWER - RAISE and OUTPUT
POWER - LOWER switches (resets the RF
output power to zero watts).
(e) Press the control/monitor panel's RF ON switch.
NOTE
It may be necessary to press the ALARM RESET
switch to clear any alarms caused by the status of
alarm latching circuitry on the PWB.
(f) Press the OUTPUT POWER - RAISE switch until
the RF output power is the desired operating
level.
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