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Current version by mayer,

Text:

The most common problem I've had with these machines is the hard drive/ IR sleep sensor cables going bad. They create all sorts of maladies including sleep and back light issues. They will also destroy hard drives. So try replacing the cable and use a hard drive from a known good machine (any 10.7 + system works for me. If nothing else it's a cheap repair attempt and the first thing I do on these machines. (so keep extra 13" & 15" cables on hand).
The most common problem I've had with these machines is the hard drive/ IR sleep sensor cables going bad. They create all sorts of maladies including sleep and back light issues. They will also destroy hard drives. So try replacing the cable and use a hard drive from a known good machine (any 10.7 + system works for me. If nothing else it's a cheap repair attempt and the first thing I do on these machines. (so keep extra 13" & 15" cables on hand).

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Original post by mayer,

Text:

The most common problem I've had with these machines is the hard drive/ IR sensor cables going bad. They create all sorts of maladies including sleep and back light issues. They will also destroy hard drives. So try replacing the cable and use a hard drive from a known good machine (any 10.7 + system works for me. If nothing else it's a cheap repair attempt and the first thing I do on these machines. (so keep extra 13" & 15" cables on hand).

Status:

open