TM 11-7025-234-23
INITIAL SETUP
TMDE
Common Tools
Tool kit
CAUTI0N
Before applying power to the modem
be aware of all handling precautions
for working on boards under power.
NOTE
All boards must be in their
respective positions in the modem
prior to voltage measurements.
Voltages are checked in the top edge
of the power regulator board (Al).
Check
1. Access modem (para 4-11).
2. Power ON.
Q
4
Connect multimeter common ground
3.
lead to ground pin (TP-7).
4. Connect input lead to voltage test
point being tested.
NOTE
+V and -V test points are the
voltages (unregulated) from the
power supply.
5. Measure the +7 and -7 V dc within
--10 mV.
+
6. Measure the +10 and -10 V dc within
--10 mV.
+
.-
7. If necessary, adjust voltages.
4-12
