Fluke 190-062, -102, -104, -202, -204, -502, -504
Service Manual
5-16
Input C LF-HF Gain
Sections Input C LF-HF Gain and Input D LF-HF Gain are for 4-channel
ScopeMeters (190-104, 190-204, and 190-504 models). For 2-channel models,
proceed to the Input AB Position section.
To do the Input C LF-HF Gain calibration on 190-104, 190-204, and 190-504
models:
1. Connect Ch. C of the Test Tool to the 5502A as shown in Figure 5-5.
2. The display must show step CL 0694 (Pos C Fast). If it does not, then press
F1
or
F2
to select the first calibration step in Table 5-3.
ADC
B
NORMAL
SCOPE
FLUKE 5502A CALIBRATOR
PM9091
PM9585 - 50 OHM
USE 50 OHM
TERMINATION
4 CHANNELS
For 190-502 and -504
use only TRM50!
Perf-Ver-F2.eps
Figure 5-5. 5502A SCOPE Output to Test Tool Input C
3. Set the 5502A SCOPE output to source the signal required for the first
calibration point in Table 5-3.
4. Set the 5502A to operate (OPR) or standby (STBY) as indicated.
5. Press
F3
to start the calibration.
6. Wait until the display shows calibration status
:READY.
7. Press
F2
to select the next calibration step, set the 5502A to the next
calibration point signal, and start the calibration.
Continue through all calibration points of Table 5-3.
8. When you are finished, set the 5502A to Standby.
9. Continue at the Input D LF-HF Gain section.
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