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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.
d.
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.
2-40

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