TM 11-6625-214-12
CHAPTER 2
SERVICE UPON RECEIPT AND INSTALLATION
a. Locate the equipment so that the louvers on
2-1.
Unpacking Signal Generator AN/URM-
the cabinet are clear of walls or other equipment in order
52(*)
to secure free intake and exhaust of air by the blower
The lid of the transit case is held in place by means of
unit with the cabinet.
trunk latches. After removing the lid, place the transit
b. Remove the cables and cords from the
case on the floor or a low table to facilitate removal of the
transit case.
instrument, which rests freely on mounts on the bottom
c. Place the power ON-OFF switch in its OFF
of the transit case. The accessory cables and cords are
position.
stored on the bottom of the transit case.
d. Connect the power cable between the
POWER INPUT connector on the front panel and source
2-2.
Initial Inspection
of power. Make sure the power source is within the
As soon as Signal Generator AN/USM-52(*) is re-
moved, verify that the instrument is intact and as
e. When the connection from the instrument to
ordered.
the power source has been completed, the HEATER
indi- cator, located on the left of the power switch on the
damage such as scratched panel, broken knob, or bent
front panel, will light, indicating that electric power is
connectors. If instrument has been damaged report the
being supplied to the POWER INPUT connector of the
dam- age on DD Form 6 (para 13).
signal generator.
b. Check the equipment against the
f.
Turn the power ON-OFF switch to the ON
posi- tion. With the switch in this position, the HEATER
applicable, and the packing slip to see if the equipment is
indicator will go off, and the POWER indicator, located to
complete. Re- port all discrepancies in accordance with
the right of the HEATER indicator, will not light, and the
the instruc- tions of TM 38-750.
sound of the blower motor will be heard. With the power
c. Check to see whether the equipment has
switch in the ON position and the MOD SELECTOR
been modified. (Equipment that has been modified will
switch in the CW position, the needle of the POWER
have the MWO number on the front panel, near the
SET DBM meter will begin to move after approximately
nomen- clature plate.) Check also to see whether all
30 seconds have elapsed. After approximately 2 minutes
currently applicable MWO's have been applied. (Current
a delay relay will operate and the rf oscillator will be put
MWO's applicable to equipment are listed in DA Pam
into operation.
310-7.)
g. Connect the rf cable to the RF OUTPUT
connector.
2-3.
Preparation for Use
h. Turn on any auxiliary equipment with which
All controls and indicators referred to in the following
the signal generator is to be used and allow it to warm
up.
follows:
2-1