Agilent Technologies 54845B Manual page 89

Power Supply
Trouble Isolation
A
Check Power Supply
Voltages OK?
G
Check for display
Yes
Power supply and Power supply OK,
display OK, return to return to no-display
primary trouble trouble isolation
isolation chart
Power Supply Trouble Isolation Flowchart
Voltages
B
Check power supply
No
resistances
Yes
Resistance OK?
onscreen
D
Display Override the Remote
onscreen? Inhibit Signal
No
Power-up OK?
chart
E
Check Bias and
Remote Inhibit
C
Replace shorted
No
assembly
Yes
F
Replace Power
No
Supply
Yes
Cabling
Chapter 5: Troubleshooting
No Display Trouble Isolation
5–11