Sony PCG-7134M: Battery Not Charging

[speedypro]

Hi all.

As in title. Tried a fully charged battery but battery wont charge in the sony. laptop works fine when plugged in only. Any schematics around or any known fix?

Regards

[spidey]

Re: Sony PCG-7134M: Battery Not Charging

supply the code of motherboard.

[speedypro]

Re: Sony PCG-7134M: Battery Not Charging

supply the code of motherboard.

It says M722-L MBX-182

[Francisco.s]

Re: Sony PCG-7134M: Battery Not Charging

It says M722-L MBX-182

Check folowing signals in battery pins: DAT_SMB, CLK_SMB, BATT_ID, BATT_PRS# , SYS_PRS#.
They are in page 44 in the folowing mbx182 (M720)

[speedypro]

Re: Sony PCG-7134M: Battery Not Charging

Check folowing signals in battery pins: DAT_SMB, CLK_SMB, BATT_ID, BATT_PRS# , SYS_PRS#.
They are in page 44 in the folowing mbx182 (M720)

Can you tell me how to check those signals? Do I need an oscillator scope?

[Francisco.s]

Re: Sony PCG-7134M: Battery Not Charging

Can you tell me how to check those signals? Do I need an oscillator scope?

Yes, you need an oscilloscope to check most of this signals. you can circumvent this with other instruments, like a signal tracer and a good voltmeter, but it is more difficult and won´t have the same results.

[speedypro]

Re: Sony PCG-7134M: Battery Not Charging

Yes, you need an oscilloscope to check most of this signals. you can circumvent this with other instruments, like a signal tracer and a good voltmeter, but it is more difficult and won´t have the same results.

I knew it. Our first one is really damaged. I guess it's time to buy a new one. Thanks.

EDITED:

Can I use this one? Or this?