Apple powermac g3 blue.white Service Manual

 

 Troubleshooting

General/Power Supply Verification - 24

 

not present, replace the power supply; otherwise, go to the 

next step.

6. Connect the black lead of the volt meter to pin 16 of the power 

supply connector. Connect the red lead of the volt meter to pin 

4 of the power supply connector. The volt meter should 

measure approximately +5V.
If you do not get a reading of +5V, re-check the volt meter 

connections and measure the voltage again. If voltage is still 

not present, replace the power supply; otherwise, go to the 

next step.

7. Measure the voltage of pin 10 on the power supply connector. 

The voltage should measure approximately +12V.
If you do not get a reading of +12V, re-check the volt meter 

connections and measure the voltage again. If voltage is still 

not present, replace the power supply; otherwise, go to the 

next step.