NCSU, connect
probe to terminal
(SYNC signal)
square wave present
NOTE 1. Go
NCSU, connect
connected in
Yes
No
No
[6] At rear of
[4] At rear of
(+5v)
of scope to
cliplead from
2.048 MHz signal
to Step 2
Step 4
[7] See
channel 1 scope
scope
[8] SYNC channel 1
67-219B
terminal
67-217B
to
terminal
67-000T
[5] Is 2.048 MHz
on channel 1 of
USING EXTERNAL REFERENCE
ALIGN DISCIPLINED RUBIDIUM OSCILLATOR FREQUENCY
the regular
NCSU circuit packs
listed in TABLE A
are installed
Yes
No
PACK
TABLE A
048-27
048-25
LOCATION
048-67
timing reference
[1] Is BSRF
FG65
FG72
FG76
[3] Ensure
[2] At NCSU 1A power
switch, rotate
ROS/OFF
and depress (
PWR OFF
lamp lights)
to
ROS
(
OS
and
OFF
NORM
lamps light)
NOTE 1
BSRF is not
DS1A must be used
operative. Alternate
DLP
PAGE 1 of 5
234-151-013
Issue 8
DEC 1995
544
