Specifications

Troubleshooting the Oscilloscope
The service policy for this instrument is replacement of defective
assemblies. The following procedures can help isolate problems to the
defective assembly.
WARNING
The maintenance described in this section is performed with power supplied
to the oscilloscope and with the protective covers removed. Only trained
service personnel who are aware of the hazards involved should perform the
maintenance. Whenever possible, perform the procedures with the power
cord removed from the oscilloscope. Read the safety summary at the back
of this book before proceeding.
CAUTION
Do not disconnect any cables or remove any assemblies with the power
applied to the oscilloscope, or damage to the oscilloscope can occur.
CAUTION
ELECTROSTATIC DISCHARGE (ESD) can damage electronic components.
When doing any of the procedures in this chapter you should use proper
ESD precautions. As a minimum, you should place the instrument on a
properly grounded ESD mat and wear a properly grounded ESD strap.
The following equipment is needed to troubleshoot the oscilloscope.
Table 7-18 Equipment Required
Equipment Critical specifications Recommended
model/part
Digital multimeter Accuracy
±
0.05%, 1 mV resolution HP 34401A
Oscilloscope 100 MHz, 1-M
Ω
input R HP 54600
Dummy load
1
Compatible with power supply See "To construct your
own dummy load"
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