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My Mac will not power up?

Tried different power cords. is there a fuse or breaker? How do you test power supply?

Answered! View the answer I have this problem too

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You can check out the power supply by plugging in a USB powered device. If the the device works the power supply should be good. Ralph

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Would you give a link on this?


iMac service manual page 140. Ralph


Step 5. Ralph


Thanks - no power at USB - taking it in for new power supply


+ for the link although you have to press the power button to use this test, that's where my question came in. Thanks for the trouble of looking this up!


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where is the fuse (if there's one ) ? on power supply we didn't find it

thanks for the info on your site , very well made


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Peter Tropper will be eternally grateful.
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