Re: ACER TimelineX 4830TG not charging

I would surely love to, however the BIOS flash utility (InsydeFlash) fails on "AC detect error!", even though the PC is powered via the AC adapter and the B+ is 19V.
Any other way to flash the bios ?

Meanwhile Windows10 status bar shows "power mode : battery" ; battery remains at 40% charge however long the PC is powered ; so the PC is actually powered via AC adapter through the AC mosfets, and Battery is disconnected via PQ8

My guess is that the KBD probably tells the CPU that...

Re: ACER TimelineX 4830TG not charging

Hi fellow hackers

I am still stuck with my Acer TimelineX 4830TG not charging the battery
I tried with the original (old) battery ; pretty much the same situation
With AC adapter connected charging light remains off, whether system is on or off

Battery Data read from SMbus:
18:27:51.822 -> Manufacturer Name: SANYO
18:27:51.870 -> Device Name: AS11A3E
18:27:51.870 -> Chemistry LION
18:27:51.870 -> Design Capacity: 6000
18:27:51.870 -> Design Voltage:...

Re: ACER TimelineX 4830TG not charging

Yes indeed, both the battery and SIO seem to chat together. And the battery looks healthy from the readings.
What I don't know is whether the series of 0x3C through 0x40 returns expected values (manufacturer specific codes, or undocumented).
[I]OptionalMfgFunction4 0x3c r/w word
OptionalMfgFunction3-1 0x3d-0x3f r/w word[/I]
Besides the "manufacturer access" returns 0, which I am not sure how it is interpreted by the host.

Also, I see the Battery Status oscillates between 0xC0 (INITIALIZED/DISCHARGING)...

Re: ACER TimelineX 4830TG not charging

Thanks for the insight ; nice link by the way...

1) [B]EC_SMB_DA1 and CK1[/B] are both 3.3V on the battery side as well as after current limiting resistor (pin 8&9 of BQ24725)

2) Resistance check 2kR (S/D, S/G, G/D)
[B]PQ6 [/B]na / na / na
[B]PQ7 [/B]na / na / na
[B]PQ8[/B] na / na / na
[B]PQ9 [/B]na / na / na
[B]PQ10 [/B]na / na / na

Diode check (S/D)
PQ6 0,527V
PQ7 0,520V
PQ8 0,484V
PQ9 0,485V
PQ10 0,502V
(all na...

Hi folks,

I am having a charge issue with a Acer TimelineX 4830TG-2434G75Mnbb laptop motherboard (LA-7321P rev1.0, model no P4LJ0).
The PC is booting and running OK on battery, but when I plug the AC adapter, I have no charge led and the battery does not charge (whether system on or off). Windows 10 shows the PC appears on battery mode.

I checked the charging port and the power rail through the DC-IN mosfets ; the 19.3V is available up to the B+ port. The gates of the 2 Mosfets is 25,2V.
I changed the original battery for a new battery ; charged at...

Re: New Members - please post your introductions here

Hi folks

Happy to join this community ; this forum seems loaded with expertise.
By means of introduction I reside in France, have been in electronics & computers science since my 11th birthday, and on and off ever since. Primarily working on repairs of household items or electronics devices, as well as PCs ; just got into motherboard troubleshooting, and eager to learn more about it;