Page 2 of 2
432/434
SECTION 5
(434) Page 5-15
(432) Page 5-12
ADD:
TEXT CORRECTION
Calibration
Step 20. Check CH 1 Variable VOLTS/DIV Range and Attenuator Accuracy
Step 15 Check CH 1 Variable VOLTS/DIV Range and Attenautor Accuracy
Before TABLE 5-1:
NOTE
Replacing U210 in Channel 1 or U310 in Channel 2 may affect
gain accuracy at 1 and 2 mV/DIV. R220 (CH 1) and R320 (CH 2) are
selectable for 1 mV/DIV gain accuracy. R223 (CH 1) and R323 (CH 2)
are selectable for 2 mV/DIV gain accuracy. If the 1 mV/DIV or
2 mV/DIV ranges are outside of specified tolerances at the com
pletion of step 19 Gain adjustments, an approximate 2% resistance
change of R220, R320, R223, or R323 will result in a 2% gain
change for the corresponding range and channel. If the display
exceeds 5.15 divisions, increase the resistor value by 27». If
the display is less than 4.85 divisions, decrease the value of the
appropriate resistor by 2%. If less than a 27. gain change is
desired, alter the effective resistor value in 17« increments by
paralleling the next higher optional resistor value desired with
R219, R222, R319, or R322 as necessary.
M18,102/1171
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