HP 85108A System Manual page 109

Step
1 Move W55 cable on A11J5 to A11J6. replace A11 IF Mixer board
2 Move W46 cable on A2J7 to A2J1.
3 If b2 IF signal is okay.
4
Step
1 Move W53 cable on A9J5 to A9J6. replace A9 IF Mixer board
2 Move W46 cable on A2J5 to A2J3. replace W53 (A9J5 to A2J3)
3 If b1 IF signal is okay.
4
Step
1 Move W45 cable on A14J5 to A14J6.
2 Move W46 cable on A2J5 to A2J7. Rede ne a2 to: DRIVE:Port 1. replace W45 (A14J5 to A2J7)
3 Rede ne a2 to: DRIVE: Port 2. If a2 IF signal is okay.
4
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Connections/setup
Return to the pulsed-RF troubleshooting owchart.
Connections/setup
Return to the pulsed-RF troubleshooting owchart.
Connections/setup
Return to the pulsed-RF troubleshooting owchart.
Conclusion
(if the problem is corrected)
replace W55 (A11J5 to A2J1)
replace A2 pulse IF Mux board
Conclusion
(if the problem is corrected)
replace A2 pulse IF Mux board
Conclusion
(if the problem is corrected)
replace A14 IF Mixer board
replace A2 pulse IF Mux board