10 000 WATT FM BROADCAST TRANSMITTER
FM10
Page 3-11
15 July 1997
Table 3-2 Control/Monitor Function Controls and Indicators
PANEL MARKING/
REF
FIG
NOMENCLATURE
FUNCTION
DES
NO.
USED IN TEXT
A13A1DS1
MD-7
MD-8
PA FAIL ALARM
When turned on, indicates failure of one or more
amplifiers within an RF power amplifier module.
A13A1DS2
MD-7
MD-8
COMBINER MATCHING
When turned on, indicates the RF output level is too
low for the level of PA volts being applied to the RF
power amplifier modules. Normally caused by
thirteen or more power amplifiers not contributing to
the RF output. Latching circuit maintains turned on
state when cause of alarm has been removed and
operation has returned to normal.
A13A1DS3
MD-7
MD-8
MODULE RF DRIVE
ALARM
When turned on, indicates that the RF drive level at
the input to one or more RF power amplifier modules
is/was below the acceptable level. Latching circuit
maintains turned on state when cause of alarm has
been removed and operation has returned to normal.
A13A1DS4
MD-7
MD-8
MODULE
TEMP ALARM
When turned on, indicates temperature inside one or
more RF power amplifier modules is/was in excess of
85
°
C. Appropriate
POWER MODULE ALARM
lamp(s)
will also be on. Latching circuit maintains turned on
state when cause of alarm has been removed and
operation has returned to normal.
A13A1DS5
MD-7
MD-8
INTERLOCK OPEN
When turned on, indicates one or more external safety
interlock switches are open and the RF power stages
have been inhibited. Latching circuit maintains turned
on state if cause of alarm is removed and operation
has returned to normal.
A13A1DS6
MD-7
MD-8
AC POWER PHASE
ALARM
When turned on, indicates that one or more of the AC
power phases have been lost.
A13A1DS7
MD-7
MD-8
AC POWER HIGH
ALARM
When turned on, indicates AC power source is/was
15% higher than the nominal input voltage for the
power transformer's selected primary winding taps.
Latching circuit maintains turned on state when AC
power is restored to an acceptable level.
A13A1DS8
MD-7
MD-8
AC POWER LOW
ALARM
When turned on, indicates AC power source is/was
15% lower than the nominal input voltage for the
power transformer's selected primary winding taps.
Latching circuit maintains turned on state when AC
power is restored to an acceptable level.
Summary of Contents for FM10
Page 173: ...Figure SD 1 Electrical Schematic FM10 FM Broadcast Transmitter Overview Page SD 1 15 July 1997...
Page 174: ...Figure SD 2 Electrical Schematic AC DC Power Supply Sheet 1 of 2 Page SD 2 15 July 1997...
Page 175: ...Figure SD 3 Electrical Schematic AC DC Power Supply Sheet 2 of 2 Page SD 3 15 July 1997...
Page 177: ...Figure SD 5 Electrical Schematic 3 Phase Monitor PWB NAPC60 03 Page SD 5 15 July 1997...
Page 178: ...Figure SD 6 Electrical Schematic RF Power Stage Sheet 1 of 2 Page SD 6 15 July 1997...
Page 179: ...Figure SD 7 Electrical Schematic RF Power Stage Sheet 2 of 2 Page SD 7 15 July 1997...
Page 180: ...Figure SD 8 Electrical Schematic RF Combiner Final Filter NAF79 Page SD 8 15 July 1997...
Page 181: ...Figure SD 9 Electrical Schematic Control Monitor Function Page SD 9 15 July 1997...
Page 182: ...Figure SD 10 Electrical Schematic Control Display PWB NAPD05 01A Page SD 10 15 July 1997...
Page 185: ...Figure MD 1 Assembly Detail FM10 FM Broadcast Transmitter Front View Page MD 1 15 July 1997...
Page 186: ...Figure MD 2 Assembly Detail FM10 FM Broadcast Transmitter Rear View Page MD 2 15 July 1997...
Page 189: ...Figure MD 5 Assembly Detail NAG02 01 NAG02 02 Circuit Breaker Panel Page MD 5 15 July 1997...
Page 190: ...Figure MD 6 Assembly Detail NAC76 Power Supply Control Panel Page MD 6 15 July 1997...
Page 192: ...Figure MD 8 Assembly Detail NAPD05 01A Control Display PWB Page MD 8 15 July 1997...
Page 193: ...Figure MD 9 Assembly Detail NAI07 Intermediate RF Drive Splitter Page MD 9 15 July 1997...
Page 194: ...Figure MD 10 Assembly Detail NAFP68 IPA Input Power Probe Page MD 10 15 July 1997...
Page 196: ...Figure MD 12A Assembly Detail NAS43 02 Low Voltage Power Supply Page MD 12A 15 July 1997...
Page 197: ...Figure MD 12B Assembly Detail NAS43 02A Low Voltage Power Supply Page MD 12B 15 July 1997...
Page 199: ...Figure MD 14 Assembly Detail NAPC60 03 3 Phase Monitor PWB age MD 14 15 July 1997...