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Switcher Hangout (Windows to Mac)
"Project Trashbook" (macbook a1181)
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<blockquote data-quote="pigoo3" data-source="post: 1540037" data-attributes="member: 56379"><p>If you had regular access to a power supply...I would test the least expensive part & the "first link in the chain" in the process. </p><p></p><p>This just so happens to be the same thing...which is the magsafe board/DC in board.</p><p></p><p>The "power chain" (in order) is:</p><p></p><p>1st. Good Power Supply</p><p>2nd. Good Magsafe board</p><p>3rd. Good logic board</p><p></p><p>If all three of these components are good...then the computer should power on (assuming there are no cable issues).</p><p></p><p>If the power supply & magsafe board are good...and the computer still does not power up...then the logic board is most likely bad. Then you have to decide if it's worth it to purchase a good working logic board (used or new).</p><p></p><p>HTH,</p><p></p><p>- Nick</p><p></p><p>p.s. Now this doesn't mean that if the computer powers on fine that the display is good (once all the above parts are "good"). The computer can power on fine...but the display could be bad...but then an external monitor can be plugged in as a way to further test things. </p><p></p><p>But lets hope that the display is good.<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="pigoo3, post: 1540037, member: 56379"] If you had regular access to a power supply...I would test the least expensive part & the "first link in the chain" in the process. This just so happens to be the same thing...which is the magsafe board/DC in board. The "power chain" (in order) is: 1st. Good Power Supply 2nd. Good Magsafe board 3rd. Good logic board If all three of these components are good...then the computer should power on (assuming there are no cable issues). If the power supply & magsafe board are good...and the computer still does not power up...then the logic board is most likely bad. Then you have to decide if it's worth it to purchase a good working logic board (used or new). HTH, - Nick p.s. Now this doesn't mean that if the computer powers on fine that the display is good (once all the above parts are "good"). The computer can power on fine...but the display could be bad...but then an external monitor can be plugged in as a way to further test things. But lets hope that the display is good.:) [/QUOTE]
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Switcher Hangout (Windows to Mac)
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