Search results

Hi had to put this one on hold, but yes checked both Q7030/40 and they are good.

Replaced U7000 with known good from donor and checked every trace around R/C/Q7030/40 Still have 0.7v on PP3v3_G3H is now precent and 20V on charger. Measured U7000 Basic voltages again, and they are the same as last time

Measured every trace and replaced U7000 with a new one. Now PP3v3_G3H is missing and 5V on charger. This is a fun one :)

P_IN : 20.41V AUX_DET: 5.08V SMC_RST_IN: 0V Not shorted VDD A/P: 5.08V / 5.08V SMC_RST* = 3.14 AUX_O = 3.41 V A/BMON = 0V / 0V NO short

3v3_G3H is present 3.4 V Checked C7050 after removing F7000 and it was 5v and then it went gradually down to 0.6 V. Very unstable as it sometimes stayed at 5v for 60 sec and then went down to 0.6 v It also takes about 15 - 20 sec to negotiate 20V with charger. This also was the case before...

Got this board from another repair shop. While performing an battery change they bridged a component an saw a spark. They think the bridge happened around C6950. They had done some work with U7000 so i replaced this chip and missing caps. PPBUS_G3H is 0.7V and no short. Any assistance to...

Hi, thank you for the warm welcome:) Changed Q7080 and board now ok. Is there any way to measure if this is the faulty component? Thanks again for the assistance :)

Allso with lab PSU it draws 35 mA (without battery)

Green light on charger goes on and off. The board works fine when connected to a programmable PSU. it allso works fine with battery only. Tried with known good DC-in board same result No visible damage to the board. Would really appreciate if someone pointed me in the right direction:)