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The light on the mouse I use is bright and then dims after 5 seconds. I think this is normal as it does it on my iMac just the same.
DP_INT_HPD is 0.00v I can't see any pulses or maybe my multimeter is too slow.
On U8300 I get 0v on pin 1 (EDP_PANEL_PWR) but I'm getting 3.3v on pin 2 and 3
R1431 is the pull up resistor for EDP_PANEL_PWR and its supposed to be 100k but tests as 82k on the board.
Do you think this might be an issue or is something pulling that down a touch while its attached to the board?
I have an 820-00165 with no fan spin after liquid damage.
Orange light and SMC reset goes green and back to orange.
Liquid damage around U5110 cleaned up.
PPBUS_G3H = 8.52v
PP5V_S5 = 4.98v
PP3V3_S5 = 3.32v
PM_SLP_S4_L = 0v
SMC_PM_G2_EN = 3.4v
PPVRTC_G3H = 3.3v
PM_DSW_PWRGD = 3.4v
Hi I have a liquid damaged Air with no display.
I've changed over a slightly burnt LVDS connector, change a couple of ugly looking caps and replaced U7701 and tried another screen also.
I'm still getting no backlight and I'm stuck.
I'm getting a display though
8.5v on L7701 LCDBLT_BOOST
Hi, I have an A1706 that has been given a little drink at the side of the keyboard right where the SSD chip is.
Turns on but doesn?t see the SSD
I took the board out and cleaned the small amount of crap near the SSD.
Put the board back in and checked it.
Now it sees the SSD, boots and runs...
Thanks for the reply JohnB8812 - Yeah I forgot to mention I checked 7005/6 they both check out fine 9.9ohms, 4.8ohms
R6950 is good at 10.01k
Q7155, battery only, not in chassis (F7140 still removed) =
pin 5 = 3.197v
pin 1,2,3 = 3.178v < took a while to climb to this...
Hi, I have a 820-3437 MBA that came in as not turning on. (no liquid damage but just didn't turn on one morning)
Found a shorting cap C7431 (PPBUS_S5_HS_COMPUTING_ISNS)
Thought it was going to be very easy as it was replaced and diode tested okay. Turns on now and boots, sees the battery serial...
Shorting pin 4 and 5 on the keyboard connector doesnt seem to work nor does shorting pin 1 of the non existent SW9988
Edit: For anyone else reading this, SW9988 pin 1 doesn't seem to have its pad connected to SMC_ONOFF_L so it doesnt work as a replacement for a power button when shorted to...