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Both replaced and still no fan spinning.

PP5V_SW_LCD - stable PP3V3_SW_LCD - 3.14V when display is on and 3.25V when display is off. I've replaced UP701 just to check if it would get any difference, but still same.

I've tried with another cable and same issue.

You mean the lcd is faulty? But I tested with another 2 lcd display and the same is happening.

Hi. Please help. M1 MacBook with intermittent display, but backlight stays on. The display stays on for about 1 minute and goes off. Tested with 2 other displays and same issue. External monitor works fine. PPVOUT_LCDBKLT - 43.45V after display goes off. Tested all EDP and LDDP lines in diode...

After resolder R8111 and remove R8168 voltage on L7430 cycle 2 time for less than a sec and stays on 0V

L7520 5.43V steady when R8111 removed L7430 0.269 diode mode

Hi, here I have this Mac with Green and Orange light, but no power. Has no signs of liquid. Q7560 replaced as it was blown. After a few checks, I found that PM_SLP_S4_L is missing. I replaced clock chip U1900 and Y1915 just to make sure it was OK. Still no power. I removed R8111 and...

OK. This will be a donor board for now. Thanks for your help.

There is a different behaviour today, but I haven't done anything yet. It has now a power cycling on PLT_RST_L. It stays cycling for a few minutes and on the other mac where I have the Apple Configurator it keeps showing lock sign and cycling.

When left it in shell, it had the fan connected. CPU core voltage when it's hot is 1.8V and PLT_RST_L also 1.8V

I couldn't fix these as customer collected as not repaired. So, no updates about how to fix it.

I left it plugged to DC and battery for about 10 minutes. (I was with a customer and I forgot to disconnect) Now on DC I'm getting 20V and 2.02A. Heat Sink and surrounding is burning hot.

Sorry, I mixed the context above. 1.9A is with battery connected. PLT_RST_L - 0V - Without battery always 0V - With battery connected it happened once after a few minutes 1.8V cycles for less than a sec and on DC was 0.9 A. PP1V8_PRIM_PCH - 1.02V

Fan spins for a second while it's cycling for a minute. After it stays on 20V, 1.9A. But sometimes if connect battery and power it will not cycle and goes straight to 20v, 39W, 1.945A All this coils. L9060 - PVCCSSD0_PHASE - 2.53V L7670 - PP5V_G3S - 5.10V L7690 - P3V3G3H - 3.29V L7030 -...

The customer stated that it suddenly stops to turn on. Trackpad clicks, but no display. No external video. All voltages were taken w/o the audio board connected. Caps lock has no reaction. USB activity (Light on the USB Stick turns on, but keeps cycling same as the board is doing)

PPBUS_G3H = 12.66V NOT CYCLING PP3v3_G3H = 3.28V NOT CYCLING PP1V8_SLPS2R = 1.8V CYCLING FOR A MINUTE PP1V8_AWAKE = 1.8V CYCLING FOR A MINUTE PP1V1_SLPS2R = 1.1V CYCLING FOR A MINUTE PP0V8_SLPS2R = 0.79V CYCLING FOR A MINUTE PP3V3_AWAKE = 3.29V CYCLING FOR A MINUTE PP1V2_AWAKE = 1.2V CYCLING FOR...

Hi. Please I really need help with this. Can't figure out the issue. Here I have an 820-01958 that came with no power. After my first diagnostics found U7800 getting very hot. The voltage on the charger was 20v, varying from 2W to 3W and 0.200A. After replacing U7800 the voltages are. With...

No USB activity.

After replacing U1950 the board started to get 1.77V on U7310/20/30. But the fan is still high speed and has no display. I've tested with another battery and same results. Something I've noticed is that even with the fan on high speed the heatsink is burning hot, but this happens with the...