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i understand that i was saying i have no image and no back light on the screen and 5v comes for 5 second then disappear the only way for me to use the computer is with and external monitor i want to know what can cause the 5v to stop working so fast on l9000

820-3462 A1425 with no internal display only external display works

wait what is going on i said no internal image or backlight only external screen with monitor works please read my first post { This a1425 Board chimes like a bird but works from external monitor using HDMI you could use the computer normal which is weird }

the mother boots with image on the external screen only and image comes before back light this might be a type on my part i type incorrectly the history on the board it had no PPVCORE_S0_CPU_PH1 and no chime only fan spinning with amber light i change R7402/R7403 now i have PPVCORE_S0_CPU_PH1...

This a1425 Board chimes like a bird but works from external monitor using HDMI you could use the computer normal which is weird but the screen is not recognize not even back light doesn't work or no image when testing voltage for on U9701 two missing voltage BKLT_EN and BKL_FET_CNTL even when...

please explain what I said wrong and not correctly mac book air with green light and amber light after but wont turn on why you post in emotionally

am so happy thanks fellas it was the charger like Paul Daniels said problem solve the spinning fan can you say yahoo ;););):D

hi I just found out on j9500 pin 11, pin 13, also go low with pin 9 when the connector is on j9500 and io board

yes that is what strange I replace the flex and io board and j9500 connector and the same issue. I did see some water on the board but the board works without both connector connected just wont charge the battery

So PP3V3_S0 goes down only if both terminals of flex connected? yes pp3v3_so goes down when both flex is connected

but when you connect the to io board and j9500 connector that same connector gets hot a lighten bolt appears and the display screen and the computer shuts off .

Hi, when you connect on the j9500 connector only pp3v3_so shows and the fan spins and the laptop works but there is no charge to the battery that is my problem

pin 9 suppose to be pp3v3_so it disappear when the connector is applied hope this makes sense

am sorry wrong choice of word it is not short just that voltage disappear when you connect the cable to j9500 and io board then j9500 gets hot then fan stop after the screen show lighten bolt on the display

i notice j 9500 gets hot then the fan turns off

the flex model am-using is 821-1722-a for model 820-00165-A motherboard

okay, I change J9500 and still the same problem what is going on I need some help with this

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that is correct j9500 pin 9 goes to ground but how you fix that problem.

yes, it turns on I change the cable twice and still the same problem.