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All replies
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Helpful answers
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Jan 7, 2012 3:00 PM in response to KGDby Simon Teale,★HelpfulDid you reset PRAM after replacing the battery ? the PRAM may be scrambled.
What happens when you press the power button on the front without unplugging the power cord ?
ie. does the button glow and then go off ? does it power on but nothing ? does it power on and power the screen ? does it power on and you get a flashing folder icon ?
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Jan 7, 2012 3:10 PM in response to Simon Tealeby KGD,Does nothing. Unresponsive and no glow or sound. Will try resetting the PRAM; perhaps I did not do that.
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Jan 8, 2012 9:42 AM in response to Simon Tealeby KGD,Simon, I rest the PRAM and still does the same thing. I will look for another power chord; always like to try possible simple fixes first.
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Jan 8, 2012 9:47 AM in response to KGDby Simon Teale,There's always a PMU reset if the PRAM reset doesn't do it.
http://support.apple.com/kb/HT1939
It doesn't have a picture for the PMU button location in an MDD but it's a recognisable shape and it's always near the internal battery. I have one too.
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Jan 8, 2012 2:46 PM in response to Simon Tealeby KGD,Tried the PRAM and PMU again; stll does the same thing. Going to look for another power chord and see if the problem still exists. If so, I am at a loss.
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Jan 9, 2012 1:14 AM in response to KGDby japamac,It is likely a PSU issue; it's sick and dying.
Next time it won't start, test the PSU with a volt meter (multimeter) as described in my following link:
http://www.jcsenterprises.com/Japamacs_Page/Blog/D275729F-09DA-4FBB-96B3-BEEEB2C 04619.html
It's not too uncommon, but it can be a fickle power button: