190 Series III
Service Manual
8
2. Select the Test Tool setup:
a. Recall the created setup (see
).
b. Press
S
,
2
(RECALL) and select
SETUP
.
c. Press
E
, select the setup name, and press
E
to recall the setup.
d. Press
A
, press
4
(INPUT A OPTIONS...), and select
Attenuator: Normal |
Bandwidth: 10 kHz
for the available setting in the Test Tool.
e. Press
B
, press
4
(INPUT B OPTIONS...), and select
Attenuator: Normal |
Bandwidth: 10 kHz
for the available setting in the Test Tool.
f. Press
C
, press
4
(INPUT C OPTIONS...), and select
Attenuator: Normal |
Bandwidth: 10 kHz
for the available setting in the Test Tool.
g. Press
D
, press
4
(INPUT D OPTIONS...), and select
Attenuator: Normal |
Bandwidth: 10 kHz
for the available setting in the Test Tool.
h. Press
I
to clear the softkey menu and see the full display.
Note
The 10 kHz bandwidth limiter rejects calibrator noise. It does not affect the gain
accuracy at a 50 Hz input signal.
3. Press
A
and use
j
and
k
to set the Input A sensitivity range to the first test point in
.
4. Set the 5502A to source the appropriate initial ac voltage.
5. Adjust the 5502A output voltage until the displayed Input A trace amplitude is 6 divisions.
6. Observe the 5502A output voltage and check to see if it is within the range shown under
the appropriate column.
7. Continue through the test points.
8. Check channel B, C, and D in succession. Connect channel B, C, or D to 5502A when
appropriate.
9. Press
T
and select B as trigger source with
1
.
10. Press B, C, or D to assign vertical range to channel B, C, or D.
11. Observe the 5502A output voltage and check to see if it is within range.
12. When you are finished, set the 5502A to 0 (zero) Volt and Standby.
