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Chapter 5: Troubleshooting
No Display Trouble Isolation
5–12
Power Supply Trouble Isolation Flowchart
Power Supply
Trouble Isolation
Check Power Supply
Voltages
Voltages OK?
Check for display
onscreen
Display
onscreen?
Power supply OK,
return to no-display
trouble isolation
chart
Check power supply
resistances
Resistance OK?
Override the Remote
Inhibit Signal
Power-up OK?
Check Bias and
Remote Inhibit
Cabling
Replace shorted
assembly
Replace Power
Supply
Yes
No
Power supply and
display OK, return to
primary trouble
isolation chart
Yes
No
No
Yes
No
Yes
A
B
C
D
F
E
G