thank you [USER="414449"]harp[/USER] and [USER="277059"]truclacicr[/USER] !!!harpthank you [USER="414449"]harp[/USER] and [USER="277059"]truclacicr[/USER] !!!truclacicrthank you [USER="414449"]harp[/USER] and [USER="277059"]truclacicr[/USER] !!!

I'm working on a board that is used to control the charging for a lithium battery. I've tracked the source of the fault to this IC, I believe it's the charging controller but I can't find a datasheet to confirm that. Does anyone know what IC this is?

The text reads:
OAS
TI 24I
AV7V

I struggled to tell if the 'I''s are 1's or just 'I''s. See image attached. Any help would be greatly appreciated!

Thanks!

[ATTACH=JSON]{"alt":"Click image for larger version Name:\tWhatsApp Image 2024-05-18 at 00.19.50_93eaec75.jpg...

piernov[USER="169897"]piernov[/USER] voltage rails look good. I've measured 1.8, 3.3 and 1.05V all around the PCH on the capacitors on top of the chip. I'll check these other signals. Thanks for the tips....

I'm nearing this conclusion. The one thing that gives me hope is that the PCH doesn't get hot while it's plugged in to the ATX. Even if I force the ATX on, it doesn't get hot. Does this happen? The PCH dies without a short circuit through it?

If I touch the PCH I do think I can feel some warmth, but it's difficult to tell for sure....

Hi,

I'm learning about motherboard repair and I believe I've traced the issue down for the South Bridge on the particular motherboard I'm working on. My path of concluding that:
- There's no sign of any attempt to power on when pushing the power button.
- No PSON signal is reaching the 24-pin ATX connector.
- The Super IO chip is receiving the PS_SWITCH signal from the power button and is relaying this signal back to the South Bridge.
- The Super IO is not receiving the S_SLPS#_R signal back from the South Bridge
- If I pull the Super IO S_SLPS#_R pin...

SMDFlea[USER="237374"]SMDFlea[/USER] thank you!!!

Details contained in these two reddit posts: [url]https://www.reddit.com/r/ElectronicsRepair/comments/1bzpuey/asus_tuf_h370pro_gaming_motherboard_repair/[/url] and [url]https://www.reddit.com/r/ElectronicsRepair/comments/1c1a3nl/need_help_finding_a_datasheet_for_super_io_chip[/url]

I've been attempting a repair of an Asus TUF H370 Gaming Motherboard. It fails to react to the power button being pressed, there's a debug light which confirms that there's standby power to the board but after any attempt to power on the components there's no sign of life. I've started my diagnosis and...

Hi there! I am hoping to join this community as whenever I do a Google search for schematics, board views or technical help, I always see bad caps at the top of the results. I can't wait to interact with the community! Nice to meet everyone