General Troubleshooting - Keysight N6705 Service Manual

General Troubleshooting

Start
Turn on unit
Look for signs that it is getting AC power
Check all cables for proper
seating and connection
Is the most
current firmware
installed?
YES
Is Bulk Supply
fan running?
YES
Is display on?
YES
Does a single
output fail?
NO
Does
communication
work (USB, LAN,
GPIB)?
YES
B
Model N6705 Service Guide
NO
NO
NO
YES
NO
Figure 5-1. General Troubleshooting Sheet 1
1. Install current firmware
1. Check line switch
2. Check cables from the Bulk Supply and the AC Plug
3. Check power from the Bulk Supply
4. Replace Bulk Supply
1. Check ribbon cable between Front Panel Assembly and PPMC Assembly
2. Replace Front Panel Assembly
3. Go to Bias Assembly troubleshooting
4. Check display cabling
5. Replace inverter
6. Replace display
1. Exchange Output Module
2. Go to Bias Assembly troubleshooting
3. Go to Backplane Assembly troubleshooting
1. Make sure the unit has the most current firmware
2. Check the PPMC assembly
Troubleshooting 5
107