s.
t .
Use insulated alinement tool and adjust R8 on +12.5 V power supply for
reading of +12.5 V.
Disconnect positive and negative multimeter leads.
u.
Set multimeter controls to measure -12.5 V.
v.
Connect common lead to pin 16 of extender board and positive lead to
TPO or ground of card 3C2.
w.
Use insulated tool to adjust R22 on -12.5 V power supply for a meter
reading of -12.5 V.
9-176
TM 5-6675-319-14
