MacBook will not power on

1namyln
1namyln used Ask the Experts™
on
I have a MacBook 2006 that will not power on.  When I attach the power adapter the light goes from solid green to solid red/orange (can't tell which one).

I have removed the battery and power adapter then pressed the power button in an attempt to purge any fugitive power.

This is the first time this has happened.  Thanks in advance.
Comment
Watch Question

Do more with

Expert Office
EXPERT OFFICE® is a registered trademark of EXPERTS EXCHANGE®
Gerwin Jansen, EE MVETopic Advisor
Most Valuable Expert 2016

Commented:
How long did you press the power button? Resetting takes 5 seconds after which you reconnect the battery and power chord.

Commented:
Do you get the white power indicator light on the front of the laptop? you should check the memory.

Author

Commented:
Resetting the smc doesn't work. I've held the power button for five seconds or more. If I remove the battery the power adapter will stay green. I have also reseated the memory.

The battery shows as fully charged.

Author

Commented:
No lights come on the machine.
Gerwin Jansen, EE MVETopic Advisor
Most Valuable Expert 2016

Commented:
Then I think you would have to take it to Apple for checkup/repair, ask for a price indication before you let them repair it.

Author

Commented:
I took the MacBook apart. I removed the top panel with the keyboard, ram, air port card, hard drive, battery, optical drive. I used the power adapter and the light was green. I pressed the power pads on the logic board. I did not get any power, chimes or lights. This leads me to believe the logic board is bad.
Commented:
If you try powering it on with no RAM, the sleep indicator light should flash repeatedly, or you should get a long tone; either result would indicate the board can see no RAM is installed.  If you are not getting either of these outcomes, the board is dead, look on eBay for a used one, or if the system is Late 2006 or later, you can take it to Apple or an AASP and have it sent for a flat-rate repair to get the board replaced, assuming there is no significant physical damage to the system.

Good luck with it!

Author

Commented:
Purchased a replacement board yesterday.  Thanks for your efforts.

Author

Commented:
I replaced the logic board.  Still no resolve.  I will try another power adapter tomorrow.

Author

Commented:
Tried another power adapter.  No resolve.

Commented:
You may have received another defective board.  You could also put the original parts back in and check with and ASP about sending it for a Flat Rate (you can only do this with the original parts back inside).

Good luck

Do more with

Expert Office
Submit tech questions to Ask the Experts™ at any time to receive solutions, advice, and new ideas from leading industry professionals.

Start 7-Day Free Trial