Philips SCOPEMETER PM93 Service Manual page 110

CALIBRATION ADJUSTMENT PROCEDURE 5 - 11
Table 5.2 Calibration signals for step 510 ... 517
Calibration step number Calibration voltage
S10 square wave, 1 kHz, 20 mV peak-to-peak
S11 square wave, 1 kHz, 50 mV peak-to-peak
S12 square wave, 1 kHz, 100 mV peak-to-peak
S13 square wave, 1 kHz, 200 mV peak-to-peak
S14 square wave, 1 kHz, 500 mV peak-to-peak
S15 square wave, 1 kHz, 1 V peak-to-peak
S16 square wave, 1 kHz, 10V peak-to-peak
S17 square wave, 1 kHz, 100V peak-to-peak
518/19.
Shift gain *1 mode and
18
mode
18
11611
Purpose: correct for the shift gain in "times 1 mode" and in "divided by 8 mode".
~~'~m
Calibration equipment:
Tektronix PG 506 Square Wave Calibration Generator
Calibration setup:
See calibration setup H3.
Procedure:
A - Apply a square wave with a frequency of 1 kHz, amplitude 200 mV peak-to-peak (between 0 mV
and +200 mV) to both channels A and B. Set the generator to the position "STD AMPL".
B - Press the READY soft key.
19
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C - Apply a square wave with a frequency of 1 kHz, amplitude 20 mV peak-to-
peak (between 0 mV and +20 mV) to both channels A and B.
Set the generator to the position "STD AMPL".
D - Press the READY softkey.