HP 75000 C Series Service Manual page 80

4.
Disconnect power and remove Oscilloscope from the mainframe.
S e ~ a r a t e the A1 and
A2
PCA's (see information in this chapter).
~ i e the following information to isolate the problem to a user
replaceable part,
Step
1.
2.
3.
Description
Power Supplies
Signal Connection
Visual Inspectiontlmproper Operation
Probable CausdAction
1. Check A1 F1 through A1 F6.
2. Check A1 PllP2.
1. Check all connectors.
2. Check all contacts.
3. Check all cables.
1. Inspect (see next page).
2. Verify connection.
3. Verify proper operation.
5. If malfunction cannot be isolated to a user replaceable component,
return the Oscilloscope to Hewlett-Packard for repair.
Service
8-5