Apple 1400C/166 Laptop User Manual


 
Troubleshooting Troubleshooting Flowchart—Startup Problems - 33
Troubleshooting Flowchart—Startup Problems
START
Reset the
Power Manager.
Press power button to
begin boot sequence.
Do you
hear the
startup
tones?
No
Yes
Are the 
startup tones
normal?
Yes
Does any 
video
appear?
No
Yes
See "Startup" in the 
Symptom Charts.
No
1. Check display/inverter cable 
connections.
2. Replace the display and 
backlight cables.
3. Replace the inverter.
4. Replace the display.
5. Replace the logic board.
1. Check the volume.
2. Check the keyboard and 
display cables.
3. Replace the speaker.
4. Replace the logic board.
Does a
gray screen
appear with
pointer?
Yes
No
1
1. Check the keyboard and 
display cables.
2. Replace the keyboard.
3. Replace the logic board.