TM 11-6625-1696-12
3-42. CONV FREQ ELECTRONIC Section Controls, Indicators, and Connectors
Controls/indicators
Function
Switch S7
Provides interconnection for +12 and -12 volts dc supplies and
metering
signals.
12 V indicator
Indicates power applied to AUT.
Connector J8 IF OUT
Provides access to IF. signal from AUT.
Connector J9
Connects AUT to test panel.
3-43. AMPLIFIER RADIO FREQUENCY Section Controls, Indicators, and Connectors
Controls/indicators
Function
Switch S8
Connects power from transmitter test facility to the section.
Switch S9
Enables 600 V to be supplied to AUT when relay K1 is
energized and air
switch on test fixture has operated and AUT 600 V interlock circuit is com-
pleted.
Switch S10
Sw pos .............. Function
DRIVER FIL CUR............
Voltmeter at J12 and J 13 indicates driver
filament current multiplied by factor of 0.1.
OUTPUT FIL CUR
Voltmeter at J12 and J13 indicates output
filament current multiplied by factor of 0.1.
OUTPUT CATHODE VVoltmeter at J 12 and J 13 indicates the cath-
ode voltage of AUT output tube.
DRIVER CUR
AUT driver tube cathode current routed
through ammeter at J10 and J 11.
OUTPUT CUR
AUT output tube cathode current routed
through ammeter at J10 and J11.
DRIVER FIL indicator
Indicates presence of driver tube filament voltage.
OUTPUT FIL indicator
Indicates presence of output tube filament voltage.
600 V indicator
Indicates 600 V supply applied to AUT.
Connectors J 10 and J 11 METER
Metering circuit ammeter connections.
Connectors J 12 and J13 METER
Metering circuit voltmeter connections.
Connector J14 DET IN
Input for negative RF detector signal to alc amplifier.
Connector J15 ALC OUT
Alc levelling signal output.
Connector J16
Provides interconnections from AUT through test fixture to test panel
3-44. FILTER BANDPASS Section Connectors
Controls/indicators
Function
Connector J17 IN
Filter input.
Connector J 18 OUT
Filter output.
3-45. AMPLIFIER RF Section Controls, Indicators, and Connectors
Controls/indicators
Function
Switch S 11
Applies operating voltage to AUT and provides metering selections.
Sw pos .............. Function
NORMAL
Connects + 12 and - 12 volts dc to AUT
directly.
+ 12 V CUR
Routes + 12 volts supply through ammeter
connected at J19 and J20.
-12 V CUR
Routes - 12 volts supply through ammeter
connected at J19 and J20.
ALC
Connects alc voltage to a voltmeter connected
at J21 and J22.
12 V indicator
Lights when operating voltages applied to AUT.
ALC ADJ control
Provides manual gain control of AUT.
Connectors J 9 and J20 METER
Metering circuit to monitor AUT supply current consumption.
Connectors J21 and J22 METER
Metering circuit to monitor alc voltage to AUT.
Connector J23 RF IN
RF input to AUT.
Connector J24 RF OUT
RF output from AUT.
Connector J25
Connects AUT to test panel.
3-24
Previous Page
