screws holding rear of network
clock chain control cover
resistance
less than
1 ohm
Yes
No
[15] At rear of frame, install six
[14] At front of frame, install
network clock chain control
cover and retaining screws
[12] Is
repeat from
[17] Rotate
ROS/OFF
switch
position to restore clock
chain to service
counterclockwise to normal
and negative (—) terminal of
AND
AND
[13] Replace
PLS
switch and
[11] Using ohmmeter, measure
resistance between pin 3 of
[10] Operate
PLS
switch
[16] Depress and hold
ON
pushbutton for 2
seconds to restore power to clock chain
PLS
(
PWR OFF
lamp extinguishes)
go off
lamps
OFF NORM
and
OS
CLEAR R1 OR PLS FAULT — DISCIPLINED RUBIDIUM OSCILLATOR
TAP
PAGE 2 of 2
234-151-013
Issue 8
DEC 1995
151
