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| Asus X401a schematic required https://vlab.su/viewtopic.php?f=177&t=29546 |
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| scobay [ 22 фев 2015, 05:17 ] | |
| Заголовок сообщения: | Asus X401a schematic required |
Hi I have a boardview file for this model but no schematic. Laptop is dead no 3.3v/5v but getting 19v on PJ6001 Im suspecting the charging Ic /charging circuit. |
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| scobay [ 24 фев 2015, 01:07 ] | |
| Заголовок сообщения: | Re: Asus X401a schematic required |
Charging Ic is BQ24725A pins 1-4 are .86v PIn 5 = 3v Pin6 = 2.5v Pins 7-10 = 0V Pin 11 = 1.95 pins 12/13 = 1.03 Pins 14/15 = 0v Pins 16/17 = 6v Pins 18/19 = 1.03v Pin 20 = 19v So both N channel fets are off, any ideas?. |
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| MSF113 [ 24 фев 2015, 09:06 ] | |
| Заголовок сообщения: | Re: Asus X401a schematic required |
Replace both n-channel fets. |
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| scobay [ 25 фев 2015, 06:21 ] | |
| Заголовок сообщения: | Re: Asus X401a schematic required [РЕШЕНО] |
Thank you it was one of the N channel Fets leaking, replaced laptop now powers up. |
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