Apple quadra 700.mac iicx.iici 服务手册
Troubleshooting
Symptom Charts/System - 2
Symptom Charts
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 Replace power supply.
5 Replace logic board. Retain customer’s SIMMs.
Clicking, chirping,
or thumping
1 Replace power supply.
2 Replace logic board. Retain customer’s SIMMs.