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| Ideapad 300 (NM-A481) Not Use AC when battery is pluged https://vlab.su/viewtopic.php?f=58&t=103203 |
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| R EZ A [ 28 май 2020, 19:26 ] | |
| Заголовок сообщения: | Ideapad 300 (NM-A481) Not Use AC when battery is pluged |
hi guys i have a motherboard here with strange behavior when only ac is pluged worked ok when just battery is pluged also worked when battery and ac is pluged and its off, it charging and binking charging LED every 5Sec problem is when battery and ac is pluged in and turn it on it turnes on but doesn't use Ac and battery is in use status is plaged in and use 0.0A when unplug battery it stay on and use AC and after repluging battery it switch to battery again looks like it use AC just when is off! i have no idea what is wrong here! what about you?! |
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| IOD [ 28 май 2020, 20:08 ] | |
| Заголовок сообщения: | Re: Ideapad 300 (NM-A481) Not Use AC when battery is pluged |
Check ADAPTER_ID on JDCIN1 and AC adapter. |
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| R EZ A [ 30 май 2020, 13:51 ] | |
| Заголовок сообщения: | Re: Ideapad 300 (NM-A481) Not Use AC when battery is pluged |
ADAPTER_ID=0V ADAPTER_ID_ON#=3.3V when laptop is off and AC and battery is pluged it use 0.8A and charge battery but when i press power switch current drop to 0.00 and use battery if i unplug battery ,laptop stay on and switch to AC |
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| IOD [ 30 май 2020, 14:51 ] | |
| Заголовок сообщения: | Re: Ideapad 300 (NM-A481) Not Use AC when battery is pluged |
Resistance to ADAPTER_ID relative to GND, with an AC adapter connected to the laptop without connecting the AC adapter to the mains? |
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| R EZ A [ 13 июн 2020, 13:15 ] | |
| Заголовок сообщения: | Re: Ideapad 300 (NM-A481) Not Use AC when battery is pluged |
i can't find that resistor in schematic! only PD304 connect ADAPTER_ID to GND can it be KBC Problem? |
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| IOD [ 13 июн 2020, 13:30 ] | |
| Заголовок сообщения: | Re: Ideapad 300 (NM-A481) Not Use AC when battery is pluged |
R EZ A писал(а): i can't find that resistor in schematic! Plug AC adapter in JDCIN1. Not plug AC adapter in AC. Check resistance on pin 3 JDCIN1 to GND (pin 4,5 JDCIN1).
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| R EZ A [ 13 июн 2020, 13:39 ] | |
| Заголовок сообщения: | Re: Ideapad 300 (NM-A481) Not Use AC when battery is pluged [РЕШЕНО] |
oh! my mistake dc jack pinout was diffrent from old motherboard and new one old pinout was + + - - id new one is + + id - - i change pinout in dcjack and its ok now thank you for help |
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