Technical data

82 4000 X-Series Oscilloscopes Service Guide
4 Troubleshooting
Troubleshooting Internal Assemblies
The service policy for all bandwidth model oscilloscopes is
assembly level replacement. You can use the procedures
described in this section to help identify assemblies that
need replacement.
Generally, you want to make sure cables to the assembly are
good and properly seated. Then, you check that the assembly
is supplied with the proper power. If cables are good and
the power is good, but the assembly still does not function
properly, it must be replaced.
If you need parts or assistance from Agilent Technologies to
repair your instrument, go to www.agilent.com and locate
the service facility for your area.
Equipment Required for Troubleshooting Internal Assemblies
The equipment listed in this table is required to troubleshoot
the oscilloscope.
Table 18 Equipment Required to Troubleshoot the Oscilloscope
Equipment Critical Specifications Recommended Model/Part
Digital multimeter Accuracy ±0.05,% 1 mV
resolution
Agilent 34401A
Oscilloscope Capable of measuring ≥
500 MHz signal. 1 M
Ω
input impedance.
Agilent
DSO6102A, MSO6102A,
DSO7104A/B, or
MSO7104A/B