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820-3115 no chime; white screen

Thread starter elcapitan
Start date May 2, 2018

elcapitan

Member

#1

i got a macbook a1278 820-3115 that doesn't chime. All i see is a white background on the screen. any suggestions on where to start?

aprendiz

Moderator

#2

Voltage on both pins from L9004, if no chime do a PRAM reset....

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