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Текущая версия: Dan

Название:

Apple iMac iSight A1145 Will not power up

Текст:

Hi all
I have acquired an Apple iMac 20" iSight A1145
-I have replaced the power supply as well as the DC inverter board but the unit will still not power up
+I have replaced the power supply as well as the DC inverter board but the unit will still not power up.
-The condition was unknown before this as I also installed a 500GB HD and also 2GB RAM
+The condition was unknown before this as I also installed a 500 GB HD and also 2GB RAM
There are no LED's lit on the mother/logic board etc so my Q being is the mother board faulty?
-I tested the PSU at the transformer out put ( 5 pin plug ) and I am getting 12.something volts between brown and the two blacks, however no voltages from the two greys? Correct or not?
+I tested the PSU at the transformer output (5 pin plug) and I am getting 12 something volts between brown and the two blacks, however no voltages from the two grey? Correct or not?
I have not tested the multi pin plug at the mother board from the DC board as I cannot find any schematic diagrams as to what the connections are
I need help quick as I have ordered another mother board and have rebuilt this iMac at least 5 times in the last 48 hours! and it is driving my Mrs barmy! ha ha
Thanks

Устройство:

-Apple iMac iSight A1145 late 2005
+iMac G5 20" Model A1145

Статус:

open

Отредактировано: kevin cawley

Название:

-Will not power up
+Apple iMac iSight A1145 Will not power up

Текст:

Hi all

I have acquired an Apple iMac 20" iSight A1145

I have replaced the power supply as well as the DC inverter board but the unit will still not power up

The condition was unknown before this as I also installed a 500GB HD and also 2GB RAM

There are no LED's lit on the mother/logic board etc so my Q being is the mother board faulty?

I tested the PSU at the transformer out put ( 5 pin plug ) and I am getting 12.something volts between brown and the two blacks, however no voltages from the two greys? Correct or not?

I have not tested the multi pin plug at the mother board from the DC board as I cannot find any schematic diagrams as to what the connections are

I need help quick as I have ordered another mother board and have rebuilt this iMac at least 5 times in the last 48 hours! and it is driving my Mrs barmy! ha ha

Thanks

Устройство:

Apple iMac iSight A1145 late 2005

Статус:

open

Оригинальный сообщение: kevin cawley

Название:

Will not power up

Текст:

Hi all

I have acquired an Apple iMac 20" iSight A1145

I have replaced the power supply as well as the DC inverter board but the unit will still not power up

The condition was unknown before this as I also installed a 500GB HD and also 2GB RAM

There are no LED's lit on the mother/logic board etc so my Q being is the mother board faulty?

I tested the PSU at the transformer out put ( 5 pin plug ) and I am getting 12.something volts between brown and the two blacks, however no voltages from the two greys? Correct or not?

I have not tested the multi pin plug at the mother board from the DC board as I cannot find any schematic diagrams as to what the connections are

I need help quick as I have ordered another mother board and have rebuilt this iMac at least 5 times in the last 48 hours! and it is driving my Mrs barmy! ha ha

Thanks

Устройство:

Apple iMac iSight A1145 late 2005

Статус:

open