![AT&T 4 ESS Manual Download Page 134](http://html1.mh-extra.com/html/atandt/4-ess/4-ess_manual_2994836134.webp)
waveform 0.1V
or greater
peak-to-peak
Yes
No
No
a = chain having phase
error cleared
a = master clock
adjustment cover
and adjust
oscillator to
measure 0.92V
RMV:NCLK 0,CHAIN
a!
AND
FB687
[50] Is
[51] Remove level
[45] Remove scope probe
[48] Repeat
from Step 16,
from pack
chain
from terminal 018
of
FB214
pack and
connect it to
terminal 201 of
[49] Remove probe
[46] See NOTE 5, Page 4. Enter
RST:NCLK 0,CHAIN
a;
UCL
!
[47] Enter
Yes
No
connect it to terminal
Yes
waveform be
adjusted to 1.9
volts peak-to-peak
No
between 0.87 and
peak-to-peak
0.97 volts
from terminal 018
probe and
replace
FB687
of
FB214
pack and
201 of
FB687
pack
[40] Can
[41] Remove probe
[42] Is waveform
[43] Remove
[44] Repeat
from Step 31,
CLEAR PHASE ERROR — DISCIPLINED RUBIDIUM OSCILLATORS
Yes
be adjusted
to 0.92 volts
peak-to-peak
level
cover
adjustment
probe and
replace
FB687
[52] Replace
[53] Can waveform
[54] Remove
[55] Repeat
from Step 31,
Page 5
TAP
234-151-013
Issue 8
DEC 1995
PAGE 6 of 19
146