10 000 WATT FM BROADCAST TRANSMITTER
FM10
Page 3-3
15 July 1997
Table 3-1 AC/DC Power Supply Controls and Indicators (Continued)
PANEL MARKING/
REF
FIG
NOMENCLATURE
FUNCTION
DES
NO.
USED IN TEXT
A5A1DS1
MD-6
♦
RECTIFIER
TEMPERATURE
When turned on, indicates temperature of rectifier
assembly A2 and/or A3 is/was in excess of 90
°
C.
Latching circuit maintains turned on state of local
alarm LED when cause of alarm has been removed
and operation has returned to normal.
The above failure condition will cause all switching
power supply outputs to be inhibited thus inhibiting
transmitter RF output.
A5A1DS2
MD-6
♦
FAN FAIL
When turned on indicates one or more of the AC/DC
power supply's cooling fans has failed or is operating
at an unacceptably low speed.
A5A1DS3
MD-6
♦
PA VDC FAIL
PWR SPLY A
When turned on indicates one of the following:
Output of the 'A' PA switching power supply is/was in
excess of 55 VDC.
Temperature of the 'A' PA switching power supply's
heat sink is/was in excess of 98
°
C.
Any of the above failure conditions will cause the
PWR MDL A
circuit breaker to be tripped open.
Output of the 'A' PA switching power supply is/was
too low for the control voltage level being applied to
the common control circuitry.
Latching circuit maintains turned on state of local
alarm LED when cause of alarm has been removed
and operation has returned to normal.
PWR MDL A
circuit breaker has been set to
OFF
.
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...