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Hi. This board had a short on PPBUS from Q7530. I have replaced it and computer now turns on but with this little problem.
https://goo.gl/photos/Zqmf2aU3hzkwQ3C7A
Thanks. Have a good one.
I have 3.2 V on both 2 and 5 of Q9807. I have found that it wasn't me taking measurements on Q9807 that was causing the backlight circuit to activate, but from the pressure of the probes. So what is happening is when ever I flex the board from any point from CPU area left to the backlight area...
Hi. Board has an Image but no Backlight. This board started as an lcd connector replacement to regain backlight because when old connector was tapped the backlight would go in and out. Tried known good working LCD. So I changed the connector and it seemed to work fine for a bit. Then backlight...
I haven't. Reason is, I have swapped three different LCD's in the total time working with this board. All known working. One of the three is a "matte" finish LCD which seems to be working fine with it. All colors are normal. I have retested the other two "glossy" with different working boards to...
Hey Duke... SMC_Reset goes from 3.4 V to 0 then back to 3.4 V when I press the power button. Checked around U5703, where pin 5 was actually missing! I did replaced it, and SMC_RESET now holds steady 3.4 V when pressing power. Only thing is now the WHORE wont turn on... LOL... PPBUS is 11.94 with...
Hi. No... I can not turn it on with power button. I have tried the board in two different cases both known working also outside of case jumping power pads. Only turns on when I attach charge to magsafe. Thank you.
Maybe this will help explain better than I am. In order to get it to turn back on I have to remove battery and magsafe. I do get ppbus from battery. Thanks.
Will not power on from battery at all. Will power on by itself when I plug in the magsafe. This occurs with battery or without battery. Once I cut the power from power button, it will not turn back on from power button. When I press the power button the light on the charger goes from amber to...
Hi. I have this machine that a shop technician forced the LCD cable in crooked and broke a piece off in the LCD connector. I have change the LCD connector and tried with known working LCD/cable with the same result. Sorry for not leaving any measurements. I had to leave early and wanted to ask...
No... Tapping on board and RAM slot didn't make a difference. It would boot up, get to OS for like 30 seconds. Then the screen would go white with full spectrum of color static, then go black. After that happened a couple times that computer would just not POST anymore, just turn on with fans at...
Hi. I have an A1278 that after 30 seconds the screen scrambles. At first, my thought was that it was going to be an LCD/cable replacement. I removed the board to look it it over and found that U2600 and the area around it was liquid damaged. I have already replaced the damaged components and...