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Table
6-11.
Sweep
Circuit
Indication:
Sweep
or
Ramp
prooiems
Check
Corrective
Procedure
1.
Depress
CONT
(Sweep)
a
U1.
Extend
SWP/STOP.
b
SW2
Check
E48
tor
+4V
2.
Depress
SWP/STOP
Check
collector of
03
4V peak ramo
II
ramp
amplitude
is
>4V
peak.
U1.03
II
ramp
amplitude
is
<4V
peak
01.02
4.
At
SWP OUT
check
for
period
change
o!
approximately
30
ms
02.
R22
to
60s
as
the
TIME
control
is
rotated
from
lull
ccw
to
full
cw
5.
At
SWP OUT
check
lor
ramp
period
drift
C4.
6
At
E39
with
STOP
control
lull
cw.
ramp
amplitude
is
4V
peak, with
STOP
R12.SW1,
SW2
control
lull
ccw.
ramp
amplitude
is
OV.
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