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| X550V (X550VC rev. 3.0) dead https://vlab.su/viewtopic.php?f=40&t=55998 |
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| bomi123 [ 19 янв 2017, 17:34 ] | |
| Заголовок сообщения: | X550V (X550VC rev. 3.0) dead |
Hi, after changing power adapter for universal, laptop works good for a couple of whiles. After maybe 1 hour, he turns off and died. Now he takes 0.01 ampers from service power supply. I dont have schematic, so its a little bit harder. Through first mosfet i messure 0,8V and it's the only present voltage on board except input 19V. Same value is on DC 5V and 3V mosfet's. When I put 19V through this first mosfet, nothing is change except value of voltage in same points. I replace this mosfet but still the same. I want to change DC 5V/3V transformer (uP1661P) but i afraid it could change nothing. Thanks in advance for any sugestions. |
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| HALLCAT [ 19 янв 2017, 18:52 ] | |
| Заголовок сообщения: | Re: X550V (X550VC rev. 3.0) dead |
bomi123 писал(а): I dont have schematic search.php?keywords=X550VC+rev.+3.0&t=340&sf=msgonly |
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| gs84 [ 19 янв 2017, 21:48 ] | |
| Заголовок сообщения: | Re: X550V (X550VC rev. 3.0) dead |
which resistance relative to ground after the second mosfet? |
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| bomi123 [ 27 янв 2017, 18:22 ] | |
| Заголовок сообщения: | Re: X550V (X550VC rev. 3.0) dead |
Resistance to ground after second mosfet was OL. That's why i didn't replace him. After replace him laptop works good. First mosfet was good. There was shortcut on GATE only when i plug in power adapter. Resistance on gates was normal. My mistake, but meybe someone will get same problem. Greetings! |
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