Ремонт: Ноутбуков, Компьютеров https://vlab.su/ |
|
lenovo t61p (T61p) Charging problem https://vlab.su/viewtopic.php?f=58&t=33290 |
Страница 1 из 1 |
pkurls [ 13 июн 2015, 16:57 ] | |
Заголовок сообщения: | lenovo t61p (T61p) Charging problem |
hi i have lenovo t61p laptop nvidia chipset i am facing problem about charging my laptop charge the bettry and but when i unplug the charger laptop shutdown ..... and not power up with charge bettry ..... any one hae a solution about this issue Thanks |
andromedax [ 13 июн 2015, 22:15 ] | |
Заголовок сообщения: | Re: lenovo t61p (T61p) Charging problem |
Measure and post voltages from all pins of Q10. Вложение: Q10.jpg
|
pkurls [ 14 июн 2015, 15:13 ] | |
Заголовок сообщения: | Re: lenovo t61p (T61p) Charging problem |
leg number 4 have 5v and 11 v on other legs |
andromedax [ 14 июн 2015, 20:52 ] | |
Заголовок сообщения: | Re: lenovo t61p (T61p) Charging problem |
Measure voltage in drain of Q13 (VINT20) (with and without charger) |
pkurls [ 14 июн 2015, 21:47 ] | |
Заголовок сообщения: | Re: lenovo t61p (T61p) Charging problem |
drain have 19v |
andromedax [ 14 июн 2015, 22:29 ] | |
Заголовок сообщения: | Re: lenovo t61p (T61p) Charging problem |
pkurls писал(а): drain have 19v And without battery? Sorry I wanted to say without Charger. |
pkurls [ 14 июн 2015, 23:20 ] | |
Заголовок сообщения: | Re: lenovo t61p (T61p) Charging problem |
with out bettry |
pkurls [ 15 июн 2015, 11:53 ] | |
Заголовок сообщения: | Re: lenovo t61p (T61p) Charging problem |
drain have 10 to 11 v with out charger ...... |
andromedax [ 15 июн 2015, 13:43 ] | |
Заголовок сообщения: | Re: lenovo t61p (T61p) Charging problem |
andromedax писал(а): Measure voltage in drain of Q13 (VINT20) (with and without charger) It is very important to know the value of VINT20 without charger. |
pkurls [ 15 июн 2015, 14:32 ] | |
Заголовок сообщения: | Re: lenovo t61p (T61p) Charging problem |
Without charger give 9v and after plug the charger its give 19v |
andromedax [ 15 июн 2015, 15:35 ] | |
Заголовок сообщения: | Re: lenovo t61p (T61p) Charging problem |
pkurls писал(а): Without charger give 9v and after plug the charger its give 19v It seems low voltage from battery. Bad battery? How many volts is it rated? (check it in battery label) |
pkurls [ 15 июн 2015, 15:47 ] | |
Заголовок сообщения: | Re: lenovo t61p (T61p) Charging problem |
battery is working on my working laptop thats problem in mainboard |
andromedax [ 15 июн 2015, 19:17 ] | |
Заголовок сообщения: | Re: lenovo t61p (T61p) Charging problem |
pkurls писал(а): battery is working on my working laptop thats problem in mainboard Q10 has 11.7 volts in its drain, and is connected to the source of Q13. If Q13 has 11.7 volts in its source, and 9 volts in its drain, (VINT20) then the internal diode are damaged, and mosfet Q13 seems not being saturated, so replace it whit a new one, or an equivalent. Вложение: Si4890DY.jpg
|
pkurls [ 23 июн 2015, 11:17 ] | |
Заголовок сообщения: | Re: lenovo t61p (T61p) Charging problem |
i have changed but have same problem |
andromedax [ 23 июн 2015, 12:15 ] | |
Заголовок сообщения: | Re: lenovo t61p (T61p) Charging problem |
pkurls писал(а): i have changed but have same problem Do you get same voltage measurements as before? Something don't match. |
pkurls [ 23 июн 2015, 15:28 ] | |
Заголовок сообщения: | Re: lenovo t61p (T61p) Charging problem |
i changed q13 q10 all have same condition |
andromedax [ 23 июн 2015, 19:26 ] | |
Заголовок сообщения: | Re: lenovo t61p (T61p) Charging problem |
pkurls писал(а): i changed q13 q10 all have same condition Battery must have 10.8V, I'm not sure only 9 volts will be enough. Вложение: LTPIB049.jpg
|
Страница 1 из 1 | Часовой пояс: UTC + 4 часа |
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group http://www.phpbb.com/ |