AC Power Distribution, Cooling and YIG FILTER CONTROL

TM 11-6625-2884-30/NAVAIR 16-35TS3615-2

BLOCK DIAGRAM DESCRIPTION (Continued)

(2) AC Power Distribution, Cooling and YIG FILTER CONTROL

AC POWER DISTRIBUTION : When CB2 is enabled 115

V ac 60 Hz is applied to:

q CONTROL

PANEL 1A1

STATUS PANEL 1A2

RF MODULATION 1A3

q RF

MODULATION 1A4

When CB2 is enabled 115 VAC 60 Hz is

applied to:

CENTRIFUGAL BLOWER B1

q TUBEAXIAL

FAN B2

Blower B1 is used to cool LRU-1 under

test.

Blower B2 is used to cool the Bench

Test Set.

YIG FILTER CONTROL

Circuit Breakers CB2 and CB3

supply 115 V 60 Hz power to

power supplies PS1, PS2 and

PS3.

PS1 - 15 volts

TO YIG FILTER ON

STATUS PANEL

PS2 + 15 volts

TO YIG FILTER CONTROL

PS3 + 10 volts

SWITCHES

YIG FILTER IN/OUT switch S2 switches

YIG FILTER in and out of RF PATH.

The YIG FILTER CONTROL S3 thumbwheel

controls the YIG FILTER in status

panel 1A2 for the setting of RF

frequency.

2-4