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Model
2001
MAINTENANCE
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d 5 . 5 . 1
+ l 8 VOLT ADJUSTMENT
/
6
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Connect the digital voltmeter to the +18 volt supply, pin 6
on the power plug and adjust R9 to produce +18V f 1 OmV.
(See Figure 5-8).
4 . 5 . 2
-18 VOLT CHECK
- 1 8
,
D
,/6
Connect the digital voltmeter to the -18 volt supply, pin 4
on power plug.
The reading must be -18 volts *50mV.
P
5.5.3
-20 VOLT CHECK
2 0 . 3 /
Connect the digital voltmeter t o the 20 volt supply, pin 5
on the power plug. The reading must be -20 volts k0.3V.
/5.5.4
-16 VOLT CHECK
/ 6
,005
CAUTION : The
+
and ~ 1 6 volt supplies are not short cir-
cuit protected.
Connect the digital voltmeter to the -16
volt supply, pin
3
o f the remote jack.
It must read -16
volts +-0 1 volt.
(Record reading).
LINEARITY
REFEPENCE
SWEEP WIDTH ADJ
C E N T
SIZE
B A N 0 1
4
3
Connect the digital voltmeter t o the +16 volt supply, pin 2
of the remote jack, and adjust R95 (see Figure 5-9) t o ob-
tain exactly the same voltage, but of opposite polarity, as
recorded for the -16 volt supply in paragraph 5.5.4.
5.5.6 SWEEP RATE ADJUSTMENTS
-
MODULE M1H
See Figure 5-17 for location of M1H module and adjust-
ment. Set Front Panel controls as follows: TRIGIRECUR
switch to RECUR, SWEEP TlME switch to .l-.O1 sec, and
VARIMANUAL control completely clockwise.
Connect
the scope vertical input to the output of the rate generator,
pin 10 o f the REMOTE jack, and adjust the scope vertical
and horizontal time base controls t o produce a stable pat-
tern similar to Figure 5-10. Adjust M1H CENT control t o
7
obtain an output symetrical about zero volts and the M1H
1
i
SIZE control to obtain the 32 volt peak-to-peak amplitude.
1
This is a preliminary adjustment, final adjustment will be
- ,
J
covered i n paragraph 5.5.7.
Figure 5-10. Sweep Ramp (M1H Output)
Next set the Front Panel VAR/MANUAL control fully
CCW and adjust the M t H INTIBAL t o produce a sweep
time of 0.12 seconds. See Figure 5-1 1.
Then set the Front Panel SWEEP TlME t o LINE and adjust
7
the M 1H CLAMP control t o clamp the negative going peak
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of the M1H output t o -16 volts. See Figure 5-12.
-
Finally adjust the WAIT control mounted on rear of the
SWEEP TlME switch assembly, see Figure 5-17, until the
wait time as shown in Figure 5-12 isapproximately 1 milli-
second.
Figure 5-9. M2H Module
Model 2001
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~;1J1
+18 VOLT ADJUSTMENT
f
8.
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{H]
V5.5.1
Connect the digital voltmeter to the +18 volt supply, pin 6
on the power plug and adjust R9 to produce + 18V ± 10m V.
(See Figure 5·8).
0.
5 .2
-18 VOLT CHECK
Connect the digital voltmeter to the -18 volt supply, pin 4
on power plug.
The reading must be -18 volts ±.50mV.
/yO
5.5.3
-20 VOLT CHECK
Connect the digital voltmeter to the 20 volt supply, pin 5
on the power plug. The reading must be ·20 volts ±0.3V.
V5.5.4
-16 VOLT CHECK
I
~
,'oo.S
CAUTION:
The + and ... 16 volt supplies are not short cir-
cuit protected.
Connect the digital voltmeter to the -16
volt supply, pin 3 of the remote jack.
It must read -16
volts +_0 1 volt.
(Record reading).
L.INEARITY
IC€FEICENCE
•
5W€€P WIDTH AD,)
BAND I
2
3
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Figure
5-9.
M2H Module
MAINTENANCE
1.-5.5.5
+16 VOLT ADJUSTMENT
Connect the digital voltmeter to the + 16 volt supply, pin 2
of the remote jack, and adjust R95 (see Figure 5-9) to ob-
tain exactly the same voltage, but of opposite polarity, as
recorded for the -16 volt supply in paragraph 5.5.4.
5.5.6 SWEEP RATE ADJUSTMENTS - MODULE M1H
See Figure 5-17 for location of M1H module and adjust-
ment. Set Front Panel controls as follows: TR I G/R ECU R
switch to RECUR, SWEEP TIME switch to .1-.01 sec, and
VAR/MANUAL control completely clockwise.
Connect
the scope vertical input to the output of the rate generator,
pin 10 of the REMOTE jack. and adjust the scope vertical
and horizontal time base controls to produce a stable pat-
tern similar to Figure 5-10. Adjust M1H CENT control to
obtain an output symetrical about zero volts and the M 1 H
SIZE control to obtain the 32 volt peak-to-peak amplitude.
This is a preliminary adjustment, final adjustment will be
covered in paragraph 5.5.7.
~
~
/
I~
+16V
/
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;:
\
/
~
-
/
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--
7'
\
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-1=\
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~
_L-:;
V
~
OV
-16V
Figure 5-10. Sweep Ramp (M1H Output)
Next set the Front Panel VAR/MANUAL control fully
CCW and adjust the M1H INT/BAL to produce a sweep
time of 0.12 seconds.
See Figure 5-11.
Then set the Front Panel SWEEP TIME to LINE and adjust
the M 1 H CLAMP control to clamp the negative going peak
of the M1H output to -16 volts. See Figure 5-12.
Finally adjust the WAIT control mounted on rear of the
SWEEP TIME switch assembly. see Figure 5-17. until the
wait time as shown in Figure 5-12 is approximately 1 milli-
second.
5-9
7
J
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