TM 11-6625-2948-14+P
TABLE 2-1. OPERATING CONTROLS, INDICATORS, AND CONNECTORS (Continued)
Function
Control, Indicator, or Connector
Item No.
25
POWER ON indicator lamp
Lights when ac power is applied to the Modulator
MD-1075/URM.
26
POWER switch
Controls application of ac power to Modulator
MD-1075/URM.
27
EXT INPUT connector
Connects Modulator MD-1075/URM to either
externally synchronizing or externally pulse
modulating signals
28
HOR SWP OUT connector
Output for horizontal sweep signal to oscilloscope
29
EXT FM connector
Accepts fm signal external to Model SG-1145/URM
30
EXT MOD connector
Accepts pulse or square wave modulation signal external
to Model SG-1145/URM.
HOR SWP PHASE control
31
Controls phase of horizontal sweep signal to oscilloscope.
Adjusts amplitude of FM driving signal internal to Model
INT FM DEV control
32
SG-1145/URM.
Adjusts square wave frequency over the minimum range
INT SQ WAVE control
33
of 950 to 1050 Hz.
RF MONITOR OUTPUT
34
Used for automatic frequency stabilization or auxiliary
RF output.
connector*
35
Used for automatic frequency stabilization or other
STABILIZER INPUT terminals*
auxiliary use
FREQ SET 50/60-400 Hz switch*
36**
Sets 50/60 Hz or 400 Hz.
FUSE*
Circuit protection for SG-1145/URM.
Sets either 115 vac or 230 vac.
AC VOLTAGE SETTING switch*
38
POWER INPUT connector*
Power cord input connection.
39
AC OUTPUT connector*
40
Connection for ac power between SG-1145/URM and
MD-1075/URM.
SELECTOR switch*
41
Selects either 115 vac or 230 vac on Model MD-1075/
URM.
.25 AMP fuse*
Circuit protection for MD-1075/URM.
42
AC INPUT connector*
43
Connection for ac power.
*Located on rear panel.
**Serial Numbers 2-60A thru 2-117A Only
