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Use insulated alinement tool and adjust R8 on A4 module of the power
supply for meter reading of -1 kV.
Turn off MASTER POWER switch and wait 1 minute.
Disconnect multimeter leads from ground and pin 11 of PMT socket.
Install PMT in tube socket.
Remove high voltage safety screen by removing screws at top of screen.
Connect high voltage probe to multimeter.
Set multimeter controls to measure +10 kV.
Connect multimeter common lead to ground with an alligator clip. (Use
same ground as in step at.)
Turn beam current adjust R23 on circuit card 3CC1 fully right.
Slide multimeter high voltage probe under rubber suction cup on CRT
high voltage connector.
WARNING
+10 kV can arc 3/4 in. and cause death or serious injury.
CAUTION
Be sure multimeter is properly set up to measure +10 kV or damage to equip-
ment and multimeter will result .
9-178
TM 5-6675-319-14
