10 000 WATT FM BROADCAST TRANSMITTER
FM10
Page 3-1
15 July 1997
SECTION 3
CONTROLS AND INDICATORS
GENERAL
3.1
The following section is intended to
familiarize operators and maintainers with the
various controls and indicators contained in the
transmitter.
AC/DC POWER SUPPLY CONTROLS AND
INDICATORS
3.2
Table 3-1 lists the AC/DC power supply
related controls and indicators. Refer to figures MD-
1 and MD-2 to locate the power supply, noting it
comprises the following assemblies: AC power
supply (A1), two 3-phase rectifiers (A2 and A3),
circuit breaker panel (A4), power supply control
panel (A5), six PA switching power supplies (A6,
A7, A8, A9, A10 and A11), IPA switching power
supply (A12), low voltage power supply (A26) and
two fan assemblies (A27 and A28).
Refer to figure MD-3 for the AC power supply's
assembly detail.
Refer to figure MD-4 for the 3-phase rectifier's
assembly detail.
Refer to figure MD-5 for the circuit breaker panel's
assembly detail.
Refer to figure MD-6 for the power supply control
panel's assembly detail.
Refer to the switching power supply's service
instruction manual for it's assembly detail.
Refer to figure MD-12 for the low voltage power
supply's assembly detail.
CONTROL/MONITOR FUNCTIONS
CONTROLS AND INDICATORS
3.3
Table 3-2 lists the control/monitor
functions controls and indicators. Refer to figure
MD-1 to locate the control/monitor panel (A13) and
then to figure MD-7 for it's assembly detail. Refer to
figure MD-2 to locate the control/ monitor PWB
(A14) and to the control/monitor PWB instruction
manual for it's assembly detail.
RF POWER STAGE CONTROLS AND
INDICATORS
3.4
Table 3-3 lists the RF power stage controls
and indicators. Refer to figure MD-2 to locate the
intermediate RF drive splitter (A15), IPA input
power probe (A16), RF combiner/filter (A24) and RF
power probe (A25). Refer to figure MD-9 for the
Intermediate RF drive splitter's assembly detail.
Refer to figure MD-1- for the IPA input power
probe's assembly detail. Refer to figure MD-11 for
the RF combiner/filter and RF power probe's
assembly detail.
RF POWER MODULE CONTROL AND
INDICATORS
3.5
Table 3-4 lists the RF power module
controls and indicators. Refer to MD-1 to locate the
six RF power modules (A18, A19, A20, A21, A22
and A23). Refer to the RF power module service
instruction manual for it's assembly details.
IPA MODULE CONTROL AND INDICATORS
3.6
Table 3-5 lists the intermediate power
amplifier module controls and indicators. Refer to
figure MD-1 to locate the IPA module (A17). Refer
to the IPA module service instruction manual for it's
assembly detail.
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