TM 5-6675-319-14
x .
Turn off MASTER POWER switch.
y .
Disconnect multimeter leads from circuit.
z .
Remove circuit card 3C2 from extender board.
aa.
Reinstall circuit card 3C2 into circuit card assembly.
WARNING
High voltages capable of causing death are used in this equipment. Use ex-
treme caution performing tasks inside cabinet.
ab.
Remove PMT from tube socket.
ac.
Set multimeter to measure -1000 V.
ad.
Connect multimeter positive lead to ground with alligator clip.
ae.
Insert multimeter common lead into PMT tube socket pin 11.
WARNING
Do not touch multimeter until MASTER POWER switch is in OFF position.
Death or serious injury may occur.
a f .
Turn on MASTER POWER switch.
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