Troubleshooting - Agilent Technologies 4339B Service Manual

Troubleshooting

Figure 4-8 shows the overall troubleshooting owchart to nd the defective assembly. Follow
the owchart when troubleshooting. Refer to the \Check Procedure References" for detailed
procedure to check each item.
Refer to Chapter 3 for assembly replacement.
Note Because of each assembly's high SMD (surface mount device) ratio, the repair
should be done by assembly replacement. The troubleshooting procedure,
therefore, only isolates the defective assembly.
4-10 T roubleshooting