| Ремонт: Ноутбуков, Компьютеров https://vlab.su/ |
|
| hp zbook 15 g3 (la-c381p) no power https://vlab.su/viewtopic.php?f=53&t=131380 |
Страница 1 из 1 |
| alifakhrniya [ 31 дек 2022, 18:13 ] | |
| Заголовок сообщения: | hp zbook 15 g3 (la-c381p) no power |
hi laptop has problem with power manegement circuite,it could not pomp 19v to the board ,but when i short dc in voltege related mosfets pq58 and pq59 for a few seconds and then release it, could switch the motherboard and work properly. after unplug the dc in voltage the problem accur again. I think th problem is related to adp_id and unfortunately there is no schematic or boardview availble. my question is how can i find adp_id signal pin in the ec (npce586) and create it manualy the correct voltage on this pin. |
|
| andr-sam.f [ 01 янв 2023, 10:57 ] | |
| Заголовок сообщения: | Re: hp zbook 15 g3 (la-c381p) no power |
To simulate the ADP_ID, you need to cut off the contact from the connector and install the upper resistor from the 19 V line to the ADP_ID. For a 90 watt power supply, the resistor should be 300 kOhm, for 65 watts 390 kOhm. |
|
| alifakhrniya [ 01 янв 2023, 11:45 ] | |
| Заголовок сообщения: | Re: hp zbook 15 g3 (la-c381p) no power |
Thanks but i did it before, the adaptor id circute in this platform is complicated and contains many transistors and mosfets and ...,and there is no schematic of the board ,so i could not identify adp_id pin in the controller.my purpose is this:to find adp_id pin of the controller(npcn86) and create the correct voltage in this pin manually. |
|
| Страница 1 из 1 | Часовой пояс: UTC + 4 часа |
| Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group http://www.phpbb.com/ |
|