Question about Toshiba Satellite A200-0ET00X Notebook
Upgraded BIOS, Replaced Power Pack and Battery, but still not charging battery. The battery charge light illuminates orange for 10 seconds and then goes out. Looks like motherboard fault. Anybody had this fault? Anyone have a solution? Thanks Andy
Unfortunately I seem to be suffering from this same problem. I am loathed to fork out on a new battery only to find it's the mobo at fault.
Remove / reinsert the battery, the charge light comes on for a few seconds (orange), then goes out again.
All the contacts look fine. I can see no obvious damage to the mobo where the Magic Smoke would have escaped. Other than that the laptop functions fine - just no battery power.
Remove the jack and the laptop turns off immediately.
Can't fathom the pinout to the battery - I only see a couple of low voltages between some pins (2.xxV). The connector on the mobo gives me various pin combinations of 3.3V, and one of 0.2V (that's the one I would expect, judging by the circuit layout, to be pumping out considerably more).
I would expect the connections to be main power and ground (10-19V), controller power (3.3v), and maybe something like I2C for signalling and control.
Could the main charge power be isolated until requested by the charge chip in the battery, which is why I see 0.2V? And if so, is it the mobo portion that's not letting the power through, or the battery not requesting the power to be let through ...?
Tracing the circuitry of a multi-layer board like this is an absolute pain. So far I have only managed to identify a 3.3V regulator in an SOT-323 footprint, which looks like it's what provides the power to the battery controller chip - separate from the main laptop power.
Investigations continue, but are slow, as I have to keep putting the laptop back together again to use it to hunt for data sheets, pinouts, etc.
Posted on Mar 05, 2013
Does the powerjack on the back of the laptop look like it is lose? This is very common in laptops and is usually the source of charging/dead laptop issues.
Posted on Feb 24, 2009
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