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Need help with a 820-00239 board ssd not detected. Minor liquid damage seen but cleaned and looks fine. Looking around videos on the net found something I need confirmation with before I proceed. Checking in diode mode L9340 PIN1 - 0.036 PIN2 – 0.036. L9341 PIN1 – 0.036 PIN2 – 0.036. Is this...
Hi,
Need help with a A820-2936-B board. Came with no charging issue. Working fine on battery. Changed U7000 and now no green light and no fan spin. 3.3v and 5v rails missing. Where do I start..
Computer has no liquid damage power light goes green then orange, no fan spin though. Found a short on PPVCC_SO_CPU. Meter in diode mode Resistance to ground is zero. Is it a short CPU or can i check for something else before I give up.
Thanks
Hi,
Need help with a board random backlight issue. First time i started it worked fine. Restart and no backlight. Now it's no backlight always. Checked the following and noticed 2.8v missing at PWM Pin voltage at the 2 Pin of the resistor R7704.
Measured the VIN voltage through capacitor...
Hi,
Need help with a A820-00165 board. Green light and then goes amber but no fan spin. Came with a short and changed C7375 to eliminate the short. Replaced F7140 and i get a green light and then it turns amber but no fan spin. PP5V_S4RS3 missing in L7520. What next...
Hi,
Need help with 820-3462 board. Initial state machine used to turn on after connecting power for a few hours and battery status missing. Could not enable battery status. Reconnecting the battery solved the problem but same issue next day. This went for a few days and now no green light and...
Need help with a 820-00165 board. Runs perfectly fine on battery but the moment i connect the adapter cable it shuts down completely. I changed the DC board but still same behavior. I have a green light that turns yellow but no voltage on F7140 when connected to Adapter. 7.6v on F7140 on battery...
Macbook Pro A1398 - 820-3332A. Fan spins continuously on battery but no chime and no display. No fan spin without battery, Yellow light on Magsafe Adapter. Checked all voltage rails and results as below.
PPBUS_G3H = 12.6v
PPVIN_S5_HS_COMPUTING_ISNS = 12.6v
PPVIN_S5_HS_GPU_ISNS = 12.6v...
Need help with one more board. 820-00165 with slight liquid damage around U8005 and U7701. Machine gives a chime and shuts off immediately. In fact it’s just half a chime and it shuts off. After cleaning liquid damage, I get a fan spin but it shuts down after few minutes. PP5V_S4RS3 is at 5.11v...
Hi,
Need help with a 820-00165 board. Green light and then goes amber but no fan spin. I checked all power rails and found PP5V_S4RS3 missing. I followed louis’ video and as correctly pointed out PM_SLP_S4_L missing. Checked the link from R6125 and R6012 to test point and test point to R1548...