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Right side USB port fails to function.

I just rescued a PowerBook G4 Aluminum 16" 1.67 GHz by cleaning the area to the below the right fan and to the left of the right speaker. I used WD-40 and 99% isopropyl alcohol. I also removed the logic board and the DC-in/Sound board.

I plugged in a Kingston 2 GB USB drive on the left side (featuring the modem and power jacks) and everything worked as expected. I unmounted the drive, and plugged it into the USB port on the right side (also featuring the Ethernet and DVI ports). There's no reaction from the laptop or the drive (no drive LED activity).

Anything else I should check and examine?

Thanks for reading!

Update

I reseated that ribbon cable connecting that right-side USB board to the logic board. I thought it was unseated and needed some type of adjustment. I am now able to use the same USB drive that failed before. I'm embarrassed.

Answered! View the answer I have this problem too

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If I've solved your problem would you please mark me as answering the question. Thanks Ralph

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Since you had a need to clean the right side it is possible there is damage to the right side USB board. I am including a link for replacing the right side board but I would use it first to see if the board is properly connected and the contacts are clean. If necessary you could replace the board. Ralph

PowerBook G4 Aluminum 15" 1.67 GHz Right USB Board Replacement

[linked product missing or disabled: IF154-088]

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As I recall only one of those ports were powered.

Do other USB peripherals work in that port Mouse, smaller flash drive?

If they do then that's a limit on the port. . . if not the ports connection to the LB is bad. Not a DIY repair but a USB hub on connected to the other port could give you a second(or additional) USB ports.

A self-powered port would be better, except of course if you use the laptop in the field where there is no place to power such a hub.

Good Luck,

N.

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lkvee will be eternally grateful.
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