Question about Apple Power Mac G5 Desktop

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Number pad on iMac keyboard inactive

Number keys on the keypad don't work.=,*,-,+,work, but not the numbers. I can't find any reason for this. Can you help, please?

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  • Anonymous Aug 14, 2008

    I am having the exact same issue. My cursor is also starting to freeze after a couple of hours. I have tried (control + clear) and other remedies suggested online, but none have helped.

  • Anonymous Nov 26, 2008

    that is a common problem great solution! it worked

  • kkess2 Feb 26, 2009

    I have an imac wireless keyboard and my numbers pad doesn't work, I have tried everything that was suggested on here, Any other suggestions?

  • Arthur Keech May 11, 2010

    My first question would be whether you have checked that Num Lock is on and lit in green. The second would be do you have another keyboard and have you tested that one?

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Press "clear" on the numbers pad, then the numbers will type.

Posted on Feb 01, 2009

  • drwritermom Feb 01, 2009

    Note - I have the most recent iMac (3.06 GHz Intel Core Duo), the keyboard does not have a numbers lock key, just a "clear" key where the numbers lock key should be, with NO numbers lock light.


    1,2,3.. yep, the clear button is the numbers lock for this iMacs keyboard.

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If the num lock/Clear key doesn't turn on the numbers, Sticky Keys is off, and you have the same problem with a different keyboard, then check the preferences for the application to see if there is a setting that overrides the num lock key. Note: in many word processing applications turning off the num lock converts the numbers into cursor control keys, so "8" moves the cursor up one line, "2" down one line, etc.
If the problem is specific to the keyboard, one of the key matrix lines (printed wiring traces) in the number section of the key membrane panel is cracked or has a bad connection to the keyboard controller chip. Sometimes you can fix a bad connection by taking the connection apart and putting it back together (you would have to take apart the keyboard first). Be careful not to touch the circuitry with your fingers - the encoder chip is easily damaged by static electricity. If you find a cracked or corroded trace on the key membrane, you may be able to patch it with silver circuit board repair compound (disconnect the membrane from the encoder board first so you don't have to worry about static discharge). The stuff is not cheap; you may decide to just get a new keyboard instead.

Posted on Jul 20, 2012

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How old is this computer? Is it USB or ADB (Apple desktop bus)? If it ADB, the keyboard & mouse are plugged into the same inlet port. I think one going bad might affect the other. Try different keyboard & mouse. Same thing might apply to USB.

Posted on Dec 20, 2008

  • Paul Bade Jul 20, 2012

    The iMac never had an ADB input, not even the 233 MHz CRT with the tray-loading CD; it was Apple's first USB input computer series.

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Try this: Apple menu;system preferences; universal access; mouse. By accident I found this (mouse keys box) was clicked ON! This disables the keyboard almost completely. it is so remote from the other keyboard controls that it is not the obvious cause. searching books was no help at all.I hope this is useful

Posted on Sep 12, 2008

  • natalie1818 Jul 12, 2010

    Thank you sooooooooo much! I've been looking on forums for ages and yours was the only one that worked for me. You are a legend!!!!

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