Apple powermac g3 blue.white Manual Do Serviço
Troubleshooting
Symptom Charts/System - 31
System
System is completely
dead
1 Check LEDS DS7 and DS8 on the logic board. In a working
unit, these LEDs should be in sync with each other: both on or
both off. If one LED is on and the other is off, there is a
problem.
2 Verify the power outlet is good. Try a known-good power
cord.
3 Make sure the voltage switch on the back of the power supply
is set to the correct voltage.
4 Check the power supply by following the procedures in
“Power Supply Verification” outlined earlier in this
chapter.
5 Disconnect the keyboard and power-on the system via the
reset button on the front of the computer. If the unit powers
on, replace the USB keyboard. If not, go to next step.
6 Reset the CUDA chip and try again. If the problem persists,
reset the logic board. (See “The CUDA Chip” and “Resetting