820-3332 - no charging

[Palhano]

The board turns on with charger, turns on with the battery charged. But it doesn't charge the battery. I have orange LED.

Very strange situation, the board turns on whenever I connect the battery.

I changed DC and tested with another battery.

PPBUS_G3H - 12.56

 

[2informaticos]

Its battery works correctly in other machine?

Check voltage and diode mode to ground on SCL/SDA lines of battery bus.
The battery port tester from Harald can help you here:

Battery Simulator

Battery Port Tester

www.cmizapper.com

 

[Palhano]

Yes, the battery works on another board.

SCL/SDA - both 3.4v and 0.550

 

[2informaticos]

What you get about battery into System Information window?

Check R7021/22, R7051/52 and traces.
Just in case, change Q7055.

 

[Palhano]

Charger connected but not charging battery.

I found that the system, shows charger connected, even disconnected. I restarted the system and it still shows charger connected!

I'm going to change the Q7055 and get the feedback.

 

[Palhano]

R7021/22, R7051/52 - I already tested it, everything was perfect.

Before replacing the Q7055, the board appears to charge the battery now, but when I unplug the charger, the system continues to recognize the charger (icon and lightning bolt). I changed the Q7055 and it continues! very crazy!

 

[2informaticos]

Check ACOK w/ and w/o charger connected.
Try changing U7000.