Mark

Let me explain further... Suddenly I was unable to boot, just a rotating circle, I have gone through all the usual holding...

I have just upgraded my iMac 20" to a Core 2 Duo and everything is running fine. I have then tried to upgrade from 10.6.8...

I have just tried for the second time to upgrade my Core Duo iMac 20" to Core 2 Duo using a When I try to turn the machine...

I am thinking it is the encoder belt - long clear plastic belt about 1/4 inch wide. It sits behind the print head and runs left to right. If this has jumped out of the guide rail of the print head it will cause head to malfunction with various error messages including that one.

To be frank I am not particularly clear on this. The reason being is the wire is a Shielded cable.

So, is the Shield soldered on the first piece and the inner wire soldered on the second piece

OR

is the Shield removed and only the inner wire soldered ??