Guys does anybody have schematic for this Asus eeePc 900. its very very old but I want to fix the not charging issue. Thanks 
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Re: Schematic for Asus eeePC 900
oh never mind I found it
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Re: Schematic for Asus eeePC 900
I already found schematic for this one. Problem is when I connect battery and try to power laptop it shutsdown after bios screen never reaches the windows loading logo.
The owner told me a few years ago battery won't charge, but confirmed battery works on other laptop. This laptop also works 100% without battery.
I saw 3 burnt components along pin no. 7 of BATT_CON, but unfortunately I cannot identify them even with schematic. There's no prints on the board.
On diagram, page38 pin no. 7 of BATT_CON, seems to be connected to only 2 components C139 and D22. I don't know value of D22 and at the end of line there is L34 which I think is and inductor with unknown value.
Do you have any thoughts for this, or does anyone have boardview? Thanks a lot guys!Attached FilesLast edited by lezsimply; 04-09-2014, 09:44 PM.Comment
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Re: Schematic for Asus eeePC 900
L34, I think is an iron core inductor with a value of 120 Ohm 100Mhz. D22 is blank I suppose because of the term "Do Not Stuff" on the diagram. So the third component to the right will be C139 100PF 50v capacitor. Will someone please help me confirm, Thanks again
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Re: Schematic for Asus eeePC 900
Yes.Comment
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Re: Schematic for Asus eeePC 900
Thanks atsio
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Re: Schematic for Asus eeePC 900
guys do you have boardview for this one? many many thanks
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Re: Schematic for Asus eeePC 900
I manage to replace bunt components along pin no.7 and pin no.8 of bat_con. And now laptop powers up with battery and can now boot to windows. But there is still problem battery does not charge. It works with adapter only and also works on battery only. Laptop detects battery and also indicates the capacity.
Which pin of PU1A (MAX8724E) supply voltage to battery? I already have datasheet for it but still cannot understand some terms. I guessing pin no.16 Batt.
There are no prints on the board which makes it difficult for me to trace components to battery. Thanks people
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Hello
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Thanks.12-27-2024, 03:41 PM -
"Hello friends. My Asus X556U laptop is not charging, not turning on, etc. I wanted to repair the motherboard, partly for learning purposes. One of the capacitors is giving a 24V output, and one of the MOSFET pins is also giving a 24V output, and honestly, this surprises me. I think I need to replace the capacitor, but I don’t know the capacitance value. I tried searching for a motherboard schematic but couldn’t find anything. Can you help me find the schematic or diagram?"
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