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! CLEANING
The exterior of the probe and cable should be cleaned only using
a soft cloth moistened with water or isopropyl alcohol. Abrasive
agents, strong detergents, or other solvents may damage the
probe. Always ensure that the input receptacles are free of debris
before connecting accessories.
CALIBRATION INTERVAL
To guarantee accurate performance, you should have the probe
calibrated every 12 months. Avoid exposing the probe to extreme
mechanical shock and excessive bending of the cable because
these may alter the calibration.
SERVICE STRATEGY
The AP034 circuits utilize fine pitch surface mount devices; it is,
therefore, impractical to attempt repair in the field. Defective
probes must be returned to a LeCroy service facility for diagnosis
and exchange. A defective probe under warranty will be replaced
with a factory refurbished probe. A probe that is not under
warranty can be exchanged for a factory refurbished probe. A
modest fee is charged for this service. The defective probe must
be returned in order to receive credit for the probe core.
TROUBLESHOOTING
If the probe is not operating properly, the problem may be the
way in which it is used. Before assuming the probe is defective,
perform the following troubleshooting procedures.
A. Trace Off Scale
This is typically caused by improper offset setting, or by an input
signal that exceeds the probe differential or common mode
range. Perform the following:
1. Remove the input signal from the probe, return the offset to
zero, and Autobalance the probe. Does the trace return to
approximately the center of the graticule? If not, proceed to
step 7.
AP034-OM-E Rev D ISSUED: January 2000