Search results

HI, Yes tried a new DC-IN Board and a new battery still same issue. Sorry about the good English

With battery connected the charger light will after 30 seconds or so turn off. MacBook will still stay on and run but battery no longer charging. I then have to remove the charger from the mains and count to 20/30 seconds before the charger will work again. If I plug the charger back in the same...

You won't believe this but the chip I used for U9701 was wrong. Replaced with the correct chip and all is good now. Thanks again for your help - appreciated.

Already reflow but it didnt help so I will replace it and let you know what happens. Thanks

My mistake I measuring at the wrong place. Yes SMC_LID is high and steady at 3.40v both when backlight works and when it doesnt. Is it possible the replacement backlight driver was bad or got damaged whilst I was heating it? Also it's ok to buy these chips off eBay right, I mean they are not...

OK I'll assume it's D9701 When backlight not working :- D9701 Pin 1 (PPBUS_SW_LCDBKLT_PWR_SW fluctuates between 7.27v and 7.52v Pin 2 (PPVOUT_SW_LCDBKLT fluctuates between 7.40v to 7.52v SMC_LID = 0v ** Now the backlight works on battery but as soon as I take the brightness up...

Hi, can't find D7701, did you mean D9701 ? Thanks

Hi, I have a MacBook Air 13" A1466 820-3209-A There was corrossion under the backlight driver U9701 and no backlight. I changed the chip with a new one and now I get backlight but only if the battery is disconnected. If I attached the battery I don't get backlight but I do get image. Thanks in...

Removed Touch Bar board connector. Corroded pads repaired and replaced connector. All good now Thank you

Yes a1706 apologies. I’ve ordered a replacement board connector as pin 22 in the connector has broken away. I will update here once I’ve changed it. Thank you

I have the above board which had some water damage. I've managed to get the board working and Mac OS loads fine. A lot of the liquid spilt onto the touch bar connector area especially J5100. I couldn't find a replacement touchbar in the UK for the a1989 but ordered one for the a1708 which I...

OK thanks again for your help!

Thank you With screen pin3 = 0.589 pin14 = 0.494 pin18 = 0.552 Without screen pin3 = 0.587 pin14 = 0.524 pin18 = 0.552 Volatages pin3 = 0v pin14 = 0v pin18 = 3.31v

I don't want to take the board out so can't give you the board number - sorry. Here are the diode measurements for the first 6 pins (pins 1 - 6), hopefully this should help you Without LCD | With LCD Pin1 - 0.545 | 0.545 Pin2 - OL | OL Pin3...

Hello. I'm getting display from an external monitor but not from the LCD. Shining a light through the back of the screen does not show up any icons etc. Without having a test screen to try what's the best way to determine if it's the logic board or the LCD? I've measured the voltage at pin 1 of...

Does a dead CPU also explain why ppbus was going from 12.58v for 30 seconds and then drops to 12.26v or would that be the SMC ? Also what should ppbus be for these boards? The schematic says 13v is that correct?

So DP_INT_AUXCH_C_N being OL (Open Line) was the biggest clue? Was DP_INT_AUXCH_C_P = 0.228 about right or was that even wrong?

Educate me. How can you tell - I believe you I would just like to know which of the readings told you Thanks

The pin that shows the burn is DP_INT_AUXCH_C_N Here are some diode mode readings:- PPVOUT_S0_LCDBKLT = 1.055 DP_INT_AUXCH_C_N = OL (Open Line) DP_INT_AUXCH_C_P = 0.228 Do you need more readings or is that enough for you to come to a conclusion?

When I hold my finger on the power button sometimes the fan spins about 4mm then stops