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Hi 2informaticos. No, I still haven't removed the original connector. I removed both fuses and tested. On both fuses, on pin1 they both show 2.4 ohms. Pin2 no short. I removed D3300, then D3400, and pin1 is still showing 2.5 ohms. Measuring D3300 and D3400, while removed froim the board, with...

Thanks for that additional information. That makes sense....if it comes back I'll have a look at U5750, and or traces between it and U5701 Thanks again.

Hi all. Had a customer bring in this A1708 Macbook Pro reporting that neither USBC port worked. I thought they had easily replaceable USBC ports, so I ordered one in...only to find that its an unusual setup directly soldered to the logic board. I cleaned the connectors and tested - and wow...

Hi again 2informaticos. Thanks for the link to the keyboard tester. Yes, the left shift doesn't respond. However using it to do an SMC works, so not sure whats going on there. Either way, customer is happy to take it as it is - so job closed... for now at least. :) Thanks again for your help.

Hi again 2informaticos, and thanks again for your help. Sorry for the delayed reply - first day back at work since the mid December. I replaced Q7030 and now have the unit booting. :) One thing that isn't working is the left Shift key. HOWEVER, the SMC correctly resets by pressing the left...

Thanks 2inforaticos. I appreciate your help, once again. OK, I desoldered Q7030 and checked the desoldered chip. All pins/pads on the removed Q7030 show essentially zero ohms resistance, so you were correct re it being shorted. R7025 shows zero Ohms. C7025 seems OK. I did find a tiny bit of...

Hi all. I have a Macbook Pro A1425 that gets an orange light, no fans or other signs of life. No signs of overheating. Very slight amount of corrosion, all located on bottom side edge of the board (when installed in MB). Between L7560 and across to around U6990. C7527 looked the worse -bad...

Update: OK, above measurement was at F9700 If I measure PPBUS_G3H on pin 1 of F9700, the figure is ~4 volts. This is the same as pin 2 of F7040. HOWEVER, pin 1 of fuse F7040 measures 8.42 volts as it should for PPBUS_G3H. I thought fuses either worked or they didn't? I removed the fuse, and...

Hi 2informaticos. Thanks for your input. With C7284 removed, the short is gone. PPBUS_G3H is low - it seems to fluctuate between 4.05 and 4.19 volts, every second or so - fast enough to notice on a multimeter. Battery disconnected. Magsafe light on connect is green then goes orange. Unit does...

Hi all. I have an A1465 Macbook Air with a 820-3208-A logic board that is dead. I recently had this unit it, dead, and found C7510 on PPBUS_S5_HS_COMPUTING_ISNS Rail was visibly damaged - burnt, and had shorted out that rail. I removed it, the short was gone, so I replaced with another from a...

Thanks for your advice 2informaticos. Sorry for the delay. The customer never used the webcam, and was happy enough to take it as it was, as they are planning on replacing it soon anyway, so I put on SSDFanControl and let it go at that.

Hi all. 820-00165-A (Macbook air A1466) with liquid ingress. Errors: PFM001 (SMC) NCD001 (camera) PPN001 (power management system) while running Apple diagnostics Fan @ 100% when operational. After liquid ingress around keyboard connector area and near WLAN card. (see photo) A tiny amount was...

Thanks 2informaticos, and sorry for the delayed reply. The customer called it quits and has decided to purchase a new notebook instead, so I have returned this job to the customer. Thanks for your help nonetheless, I appreciate it.

Hi all. This board has had a small amount of liquid ingress onto it. Worst affected areas were around: U5600-U5601 and, a small amount around: Q7430-Q7630 I cleaned all areas, and there are no signs of damage. No feel of any overheating components. PPDCIN_G3H 15.17V (and with another charger...

Hi again. I'm working on a 820-00165 with no backlight. Originally came in with signs of liquid ingress, primarily around F7700 and U7701 areas. After cleaning, I've confirmed its working on an external monitor, and can faintly see the image on screen, so its outputting data, just no...

Hi again. I have Macbook Air that came in reported not turning on. Gets a green/orange Magsafe LED but no fan spin or other sign of life. Tested with known good charger - same. Very slight water ingress - literally a few dots only on the top side of board. A few tiny signs of corrosion near...

Hi again 2informaticos. Sorry for the delay, got sidetracked on other jobs. Thanks for those files, I appreciate it. I rechecked all the connections without success, so I ended up ordering an new panel, and voila, its working. I'm not sure what happened with the original panel, as I wasn't the...

Hi again 2informaticos. Yes, that is correct - image but no backlight. Can just make out the Apple logo when you turn it on. With the LCD panel completely disconnected, the unit displays fine on a external monitor connected to USBC.

Hi again all. Happy New Year. I've got a 2017 iMac that was working fine until we pulled it apart to upgrade the hard disk in it. On reassembly, we now have no backlight. There's no sign of physical damage to either of the two cables that connect the screen to the logic board, nor to the...

There's so many CLK lines on there ahhhrrrrgggg... Do you mean these ones below? PCH_CLK32K_RTCX1 = 0.35v NC_RTC_CLK32K_RTCX2 = CANNOT LOCATE ON BOARDVIEW!!! HDA_BIT_CLK_R = 0v TP_PCH_I2S1_SCLK = 0v For some reason, NC_RTC_CLK32K_RTCX2, while it is listed in list of nets in the boardview, I...