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My preference would be to understand what U7000 does so that I can troubleshoot on my own. For example, I can see that U7000 has power in from usbc charger, after it passes current sensing resistor R7020 I see CSIN and CSIP which are the two sides of the input current sensing circuit. I see...

Would it be possible for you to post a list instead of the correct values?

I replaced earlier the two corroded resistors 7022 and R7021 before I took the U7000 area measurements and reported them here. On inspection, I realize that U7000 was not even--I must have nudged it during resistor replacement. I reballed it and returned it to the board. Now Usbc port activity...

P_IN = 20.56 AUX_DET = 4.92 VDD/A = 3.01 VDD/B = 5.11 SMC_AUX_OK =_3.41 CHGR_AMON = 3.4 CHGR_BMON = 0 c7020 2.9 c7023 2.9 SMC BYPASS was unsuccessful for fan spin

I have 820-00840 that does not turn on. Two USBC ports had different activity. Port #1 =5v, 0.17A steady Port#2 20v immediately cuts off, 0A then restarts Found one drop of water on the board. That drop made corrosion at R7021, R7022 near U7000. No water under U7000. Test point for...

I searched Amazon for "usb c flash drive led" and did not find any results. Do you have a link? I am in the US. I ordered the usbc mouse with LED and it does light up. I do not know if that is a data connection or not for the lights. I have a usbc HDD but it does not have a light. When I...

Does this device have PRAM? I tried holding down cmd-option-p-r while connecting usb-c Also tried holding down cmd-option-p-r while connecting usb and pressing power button

I have tried a usb-c LED mouse. The LED does light up. I have tried a usb-c spinning hard drive, it does spin. When I use a usbc HDMI dongle--no image on external display. I do NOT hear a chime when I boot the macbook. I DO hear a "ding dong" when I connect or disconnect usb c What...

I can do that, but I will have to order something to plug in that will show a light. Can we move forward for today? I did hear a chime when plugging into usb port earlier. Can we discuss "If you confirm usb activity, then with diode mode on screen connector nothing short/open THEN....???"...

After ultrasonic cleaning the usb-c ammeter on both ports is the same, normal. 20v 1-2A and battery charges. I am not sure of the best way to check usb activity, I plug in a usb-c android phone and it does charge. I think usb activity is good. No image/display. I have confirmed that the...

Liquid damaged 820-01958. Initial presentation on usb-c ammeter: First test: 20v and 0.03A Second test: 5v off and on alternating. No boardview. Tried to map the water to 820-01521 boardview. Water was at Q7660 and Q7680. Water discolored crystal Y1900. Water was at some tiny resistor...