TB 9-6625-2193-24
(2) Set calibrator frequency to 10 MHz and adjust A3C33 fig. 2 for value recorded in
table 3 for 1.000V, 1 kHz. Repeat steps 8 a (5) through (7) above (R).
Table 4. Voltage Accuracy (To 20 MHz)
Calibrator
Output
Test instrument
Error display
range
Initial voltage
Frequency (MHz)
limits (%)
V
---
5.0
10.0
316.2
V
---
20
15.0
316.2
1.0 mV1
1.000 mV
0.5
5.0
1.000 mV
---
5.0
10.0
1.000 mV
---
20
15.0
3.16 mV1
3.162 mV
0.5
5.0
3.162 mV
---
5.0
10.0
3.162 mV
---
20
15.0
mV1
10.00
mV
10
0.5
5.0
10.00
mV
---
5.0
10.0
10.00
mV
- --
20
15.0
1
31.62
mV
31.6 mV
0.5
5.0
31.62
mV
---
5.0
10.0
31.62
mV
---
20
15.0
1
100.0
mV
100
mV
5.0
10.0
100.0
mV
---
20
15.0
mV1
316.2
mV
316
5.0
10.0
316.2
mV
---
20
15.0
1
1.000 V
1.0 V
5.0
10.0
1.000 V
---
20
15.0
1
3.162 V
3.16 V
5.0
10.0
3.162 V
---
20
15.0
1Repeat technique of (5) above to establish 1 kHz reference.
9. Power Supply
NOTE
Do not perform power supply check if all other parameters are
within tolerance.
a Connect digital multimeter positive lead to TP16 and negative lead to TP1 (fig. 1). If
digital multimeter does not indicate +15.0 (0.5) V, adjust R44 (fig. 3) for a +15.0 V
indication (R).
b. Move positive lead to TP2 (fig. 1). If digital multimeter does not indicate -15.0 (0.5)
V, adjust R49 (fig. 3) for a -15.0 V indication (R).
c. Move positive lead to TP3 (fig. 3). Digital multimeter will indicate + 5.0 (0.25) V.
d. Move positive lead to pin 1 of R34 (fig. 3). Digital multimeter will indicate +9.3
(1.0) V.
e. Move positive lead to TP10 (fig. 3). Digital multimeter will indicate +4.9 (0.4) V.
8
