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| ASUS K501UX (K501UX REV: 2.0) Black screen https://vlab.su/viewtopic.php?f=40&t=94454 |
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| papisp [ 19 сен 2019, 12:43 ] | |
| Заголовок сообщения: | ASUS K501UX (K501UX REV: 2.0) Black screen |
Asus K501UX REV: 2.0 Hybrid: SR2EZ GPU: N16P-GT-A2 EC: KB9026Q After connecting the power supply, the board starts without a picture with a current consumption of 0.3A (without battery), when you try to turn it off by pressing the button, it turns off and on again. I programed the Bios with various batches without changes. There is a lack of voltage on the coils feeding the BV hybrid available and I use it. PL8101 0V 5 Ohm PL8102 0V 5 Ohm Other voltages present. PQ8102 DREN There is voltage 19V B, S no voltage PQ8104 no voltage on all pins It is exactly the same with PL8101 coil transistors PQ8103 D - 19V B - 0V S - 0V PQ8107 D - 0V B - 0V S - 0V Transistors are not pierced, they are controlled from PU8001 (NCP81206AMNTXG) Please, more experienced colleagues, can these measurements indicate damage to PU8001? |
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| AndreyVl96 [ 20 сен 2019, 05:01 ] | |
| Заголовок сообщения: | Re: ASUS K501UX (K501UX REV: 2.0) Black screen |
Did you check for a short circuit on all chokes? Maybe there are traces of moisture? |
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| papisp [ 20 сен 2019, 11:00 ] | |
| Заголовок сообщения: | Re: ASUS K501UX (K501UX REV: 2.0) Black screen |
There are no signs of flooding on the other coils are the correct voltages |
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