820-01987 no charging

[V4Vtwo]

Hello. Have a macbook with motherboard 820-01987 that's not charging. Initially it came with a short and managed to trace it to PP0V9_TBT_X_SVR, I removed u2800 and short went away. I ordered JHL6540 replacement but now I get no charging it's stuck at 5V.

Thanks any help would be appreciated

[mon2]

What is the current draw on the usb c meter?

[V4Vtwo]

What is the current draw on the usb c meter?

.034 amps

[mon2]

Confirm the presence of each LDO on each CD3217 power delivery controller. You can find the cluster of these pins under the 'Power' text in the library part for each CD3217.

[V4Vtwo]

[QUOTE=mon2;n3610562]Confirm the presence of each LDO on each CD3217 power delivery controller. You can find the cluster of these pins under the 'Power' text in the library part for each CD3217.

here

PP3V3_G3H_RTC 3.3
PP1V8_SLPS2R .6v
UPC_XA_VDDIO_CFG .2v
PP3V3_TBT_X_SX 0v
UPC_XA_SS 0v
PP3V3_UPC_XA_LDO 3.3
PP3V3_TBT_X_SX 0v
PP1V5_UPC_XA_LDO_CORE 1.5v

[mon2]

PP1V8_SLPS2R .6v

Remove all power. Meter in resistance mode. Measure the resistance to ground of PP1V8_SLPS2R.

[V4Vtwo]

Remove all power. Meter in resistance mode. Measure the resistance to ground of PP1V8_SLPS2R.

PP1V8_SLPS2R. = .378

[mon2]

Meter in resistance mode. Measure the resistance to ground of PP1V8_SLPS2R.

Resistance will be in ohms. I think you are in diode mode? If not in diode mode, share the meter resistance scale you are using.

[V4Vtwo]

Meter in resistance mode. Measure the resistance to ground of PP1V8_SLPS2R.

Resistance will be in ohms. I think you are in diode mode? If not in diode mode, share the meter resistance scale you are using.

diode mode red to ground .378
200ohms red to ground no reading

[mon2]

Rail is not shorted but is also not working properly.

Try a DFU. Post your results.

https://repair.wiki/w/MacBook_Pro_A2...w_at_5V_repair