Apple macintosh ii.iix.iifx Manual Do Serviço
Troubleshooting
Symptom Charts/System - 3
System
Does not power on—
screen is black, fan is
not running, and LED
is not lit
1 Check cables.
2 Plug monitor directly into wall socket, and verify that
monitor has power.
3 Replace power cord.
4 Check batteries. Refer to “Battery Verification” in
Additional Procedures.
5 Replace power supply.
6 Replace logic board. Retain customer’s SIMMs.
Clicking, chirping,
or thumping
1 Remove additional NuBus cards.
2 Replace power supply.
3 Replace logic board. Retain customer’s SIMMs.