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DPO4000 Series Service M anual
3-1
Adjustment Procedures
This chapter contains the factory adjustment procedures for the DPO4000 series
oscilloscopes. Only qualified personnel should perform adjustment procedures.
Read the Service Safety Summary and the General Safety Summary before
performing any service procedures.
NOTE. The voltage references inside the oscilloscope are very stable over time
and should not require routine adjustment. Before performing any procedure in
this chapter, do the Performance Verification procedures to check whether the
oscilloscope meets s pecifications. See the DPO4000 Technical Reference.
Successful completion of this adjustment procedure automatically updates the
instrument Calibration Due date and time. (Completion of the Performance
Verification procedure does not update the instrument Calibration Due date and
time.)
Required Equipment
The following equipment, or a suitable equivalent, is required to complete these
procedures.
Description Minimum requirements Example
DC vol tage source 50 m V to 70 V, ±0.1% amplitude
accuracy
Wavetek 9500 Oscilloscope
Calibrator with one 9510
Output Module
Sine Generator 1GHz Wavetek 9500 with 9530
t
t
d
l
Edge Generator 1 kHz with <50 ps ch--ch skew
output modules
50 Ω BNC cable BNCmaletoBNCmale,≈ 10 in
(25 cm) long
Tektronix part number
012-0208-00
Adjustment tool Non conduct ing shaft with diame-
ter ≤2.5 mm (≤0.1 i n)
Tektronix part number
003-1433-00