TM 3-6665-329-13&P
Table 3-2. Functional Test Procedures (Cont)
Test
No.
Test
Procedure
5
11 V REF (cont)
Connect variable power supply positive (+)
c.
lead to socket 13 and connect (-) lead to
socket 7 of the extender board.
d.
Set multimeter to 50 volt dc scale.
e.
Connect multimeter positive (red) lead to
test point C.
f.
Connect variable power supply to power source.
Turn variable power supply on and adjust to
g.
20 volts.
h.
Touch multimeter negative (black) lead to
socket 7 of extender board.
i.
Read multimeter. If it reads between 10.5
and 11.5 volts, continue testing. If it
does not, refer to Troubleshooting para-
graph 3-7.4.
Power OFF.
j.
Disconnect variable power supply leads from sockets 7
k.
and 13 of extender board.
l.
Remove multimeter and variable power supply
leads.
3-20
