Question about Apple Power Mac G5 Desktop
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?
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
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
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Posted on Jan 02, 2017
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