TM 11-4120-247-14-1
c. See that all terminal board screws are present and
port the damage on DD Form 6 (para 1-3).
links are tightly connected between terminals 1 and 2,
b. See that the equipment is complete as listed on
3 and 4, 5 and 6, 8 and 9, and 10 and 11 on rear
the packing slip. If- a packing slip is not available,
terminal board (fig. 2-3).
check the equipment against the components data
d. The power supply is a bench-type unit and needs
given in paragraph 1-6. Report all discrepancies in ac-
no installation.
cordance with TM 38-750. Shortage of a minor
assembly or part that does not affect proper function-
2-4. Preparation for Use
ing of the equipment should not prevent use of the
equipment.
c. If the equipment has been used or reconditioned,
WARNING
The input power is applied by a line cord with
see whether it has been changed by a modification
an ac three-prong plug. Connection of the line
work order (MWO). If the equipment has been modi-
fied, the MWO number will appear. on the front panel
cord to a 3-wire ac power source grounds the
equipment. If 3-wire ac power is not avail-
near the nomenclature plate. If modified, see that any
operational instruction changes resulting from the
able, an adapter can be used. The user should
modification have been entered in the equipment
make sure that the extra wire (coded green)
coming out from the adapter is solidly
manual.
NOTE
grounded to the ac power source wiring
system, preferably soldered.
Current MWO's applicable to the equipment
b. Plug the power cord connector into a 115-volt ac,
are listed in DA Pam 310-7.
60-Hertz (Hz) power source.
2-3. Installation
c. Make the necessary load connections to the bind-
ing posts as specified by-the local requirement.
a. All semiconductors, the fuse, terminal board
links, and indicator lamps are installed in the power
2-5. Terminal Board Links
supply when the equipment is shipped.
b. See that a 5.0-ampere fuse is installed in the fuse
Terminal board links connect portions of the interior
holder at the rear of power supply (fig, 2-3).
power supply circuitry. When the power supply is used
Figure 2-2. Power Supply PP-3940-A/G, Front Panel Controls an Indicators.
2-2
Change 1
