FLTS VIDEO ASSEMBLY 1A2 - TM-11-6625-2885-300027

TM 11-6625-2885-30/NAVAIR 16-35TS3614-2

FLTS VIDEO ASSEMBLY 1A2

2-3. During a CM set test, the receiver-transmitter under test (LRU-1)

supplies +28 V and status signals to the FLTS. LRU-1 has a monitor connector

(1J7) which carries this power and these signals through FLTS cable WI, to

FLTS video assembly connector J1. The video assembly then supplies the FLTS

transmitter and receiver with all voltages and signals necessary for their

operation. Figure F0-2 shows the circuits in the video assembly. During AVIM

tests of the FLTS, the video assembly connects to the bench test set, as in

POWER SUPPLIES

2-4. The video assembly includes three power supplies, an overvoltage

protection circuit, two circuit card assemblies, and all switches and

lamps necessary for operation of the FLTS. The AN/ALQ-136(V)1 CM set under

test supplies +28 V power to the ON/PWR switch (1), a 7 ampere circuit

breaker. When the ON/PWR switch is in the ON position, +28 V feeds power

supplies (PS1), (PS2), and (PS3). These power supplies generate +5 V, +15 V,

-15 V, and -65V. The voltages +5 V, +15 V, and -15 V are supplied to the

video circuit cards and the transmitter and receiver assemblies. The -65 V

is supplied only to the transmitter assembly. Overvoltage protection is

provided for the +5 V power supply by limiting device (OV1).

2-3