Recent content by HeyWatchOutDude

Any idea what else could be wrong? Edit: - 5V / 0.16A | PPBUS_G3H = 12.27V - 19.4V / 0.04A | PPBUS_G3H is slowly going down from 5V to 0V Did you ever seen such a behaviour?

any idea?

No everything looks fine. I noticed that the diode value of the F7000 is 0.350 … compared with a good one it’s 0.460.

History: Water damage (didnt found any signs), one CD3215 area looked like that: Trace on C3115 to PIN12 was broken, fixed it with a wire (PP1V8_SLPS2R is present):

Problem solved, C3508 was shorted.

Yes 5.2V on both pins. I have removed L3500 and found a short on PP5V_S4_X_USBC, removed the CD3215 ... short is still present.

No voltage on L3500 (P5VUSBC_X_LL / P5VUSBC_X_R) - USB device is plugged in. 5.2V on LB700 (P5VUSBC_T_LL / P5VUSBC_T_R) - USB device is plugged in. Note: U3500 is getting 5.2V on PP5V_USBC_X_VCC, so maybe U3500 is bad?

Hi, I have here an A1989 where the left USB-C ports are not recogizing any peripherals - charging is working - right side no issues. Could it be that the THB IC is damaged or corroded? (Should I reflow the IC?) Note: The MacBook was water damaged in that area, (U3200 was bad)

So?

What do you mean with " points to problems with some secondary supply " ? How to bypass T2 chip?

Sry for my late reply .... L9080 = 0.373 L9020 = 0.333 PPBUS_G3H = 12.28V when USB-C output is 5V / 0.16A PPBUS_G3H = 1.2V when USB-C output changes to 19.4V / 0.05A Bad ISL?

Values = diode mode L7220 = 0.004-5 L7210 = 0.004-5 L7410 = 0.004-5 L7420 = 0.004-5 L7430 = 0.004-5 L7270 = 0.022 L8102 = 0.120 L7702 = 0.110 L8100 = 0.200 LB700 = 0.495 L7600 = 0.390 L7660 = 0.410 L7030 = 0.495 L8410 = 0.850 L3500 = 0.380 L7220, L7210, L7410, L7420, L7430 .. I assume they are...

All 4 ports same behavior. I noticed that PP5V_G3S isnt stable. Note: I tried already T2 restore/review no success always ends with an error.

Hi, every had such a strange behaviour on an A1989?

Hi, I have successfully changed the U7800 ... sadly the device is still acting weird. Why does it keep restarting? Any idea? Video: