Certain keys stopped working

The space bar on my ibook stopped functioning a month ago and I re-routed the function to another key,
which isn't ideal but at least it's usable.
but now the brightness and sound keys - top left row have also stopped working. The top right row of function
keys still work.
I lifted off the keypad to see if there was anything underneath blocking their function, but it was clean.
Could this be part of the same problem that stopped the space bar from working?
Is it a relatively cheap/easy fix to get a new space bar or the other keys repaired? Thank you in advance.

Hello,
Try resetting resetting the PMU?
If that doesn't work, then it sounds to me like a faulty keyboard.
You will require a replacement. They are easy to replace and cheap to buy on places like eBay.
replacing them is a simple pull out plug situated under the RAM slot under the keyboard. depending on what model of iBook you have.
http://www.ifixit.com/Device/iBook has guides on how to fix parts like keyboards.
it's simple enough to do yourself.
Best of luck

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http://forums.adobe.com/message/2657882#2657882

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http://support.apple.com/kb/ts1381
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Ziro wrote:
Customer support that's going on here is fascinating.......2 days, no reply.....
Yes, some Lenovo employees do read and post to this forum. Mark is quite active, and several others post as well. In addition, there are lurkers who just read without making public comments although sometimes they ask the mod team to either gather more information or pass along advice.
Well, it's not a customer support forum - it's a user-to-user forum. Here are the expectations of Lenovo's participation from the Welcome message:
These communities have been created to provide a high quality atmosphere in which users of Lenovo products and services may share experiences and expertise. While members from Lenovo may participate at intervals to engage in the discussions and offer advice and suggestions, this forum is not designed as a dedicated and staffed support channel.
The bottom line is there's no guarantee that you will get an answer to a question here directly from Lenovo.
Also, this is a major holiday weekend during the height of summer vacation season in the US. Not much chance even the Lenovo employees who just hang out here for fun will be around.
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Jane
2015 X1 Carbon, ThinkPad Slate, T410s, X301, X200 Tablet, T60p, HP TouchPad, iPad Air 2, iPhone 5S, IdeaTab A2107A, Yoga Tablet, Yoga 3 Pro
I am not a Lenovo Employee.
I AM one of those crazy ThinkPad zealots!
If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"!

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Hi, thank you for your help.
Some motherboards were not in chassis when I got them. Is there a place the PSAAxx model number would be written on the boards?
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Thank you for your reply. (-:

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