Control .

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

STATUS AND MONITORING (Continued)

LAMP TEST Switch S13, when depressed, applies a ground level to one

input of the nand gate on the lamp driver assembly. The high output

from the nand gate turns on the output power drivers, illuminating

the lamps on the status panel.

Control .

(1) The status panel provides forcing signals to LRU-1 to force

it to a particular state. This is accomplished by pressing one of

8 forcing function lamp switches S5 through S12 on the forcing

function panel. The forcing function lamp switches connect a

ground froin the Status Panel to a point in LRU-1. When a function

is being forced, the indicator on the forcing function switch is

lit.

(2) POWER SUPPLY PS1 supplies +12V to one terminal of each forcing

When the switch is depressed a ground return is supplied to

the other terminal.

(3) LAMP TEST S13, when depressed, provides a ground return to illumi-

nate all forcing function lamps.

(4) RESET S4, when depressed, provides a master reset signal (ground

level) to LRU-1 under test.

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