Re: HP 650 plugged in not charging
aaaa check this... when I was heating first fet .... i try again and after that charging is off no going on... i check capacitor on gate of first fet and that capacitor is short to ground after that I replace that capacitor and check again charging is fine for now...
invisible4u4ever
Member
Last Activity: 03-08-2025, 12:01 PM
Joined: 08-24-2015
Location: Degg
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Last edited by invisible4u4ever; 01-28-2019, 09:13 AM. -
Re: HP 650 plugged in not charging
hahah after 15min again same problem... charging and after one sec not charging... loop I dont know where and what to checkLeave a comment:
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Re: HP 650 plugged in not charging
Changed charging circuit and everything is working fine.
Thanks everyoneLeave a comment:
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Re: HP 650 plugged in not charging
This is schematic...Leave a comment:
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Re: HP 650 plugged in not charging
but why i have 12v on + of battery connector and battery not charging ... that is strange to me...Leave a comment:
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Re: HP 650 plugged in not charging
Something strange is happening when i put dc power supply on output of second mosfet... amps compsumtion goes to 2.1A and go to zero and again to 2.1A ...
I didn't check charging icLeave a comment:
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HP 650 plugged in not charging
Hi,
I have one hp 650 with notification plugged in not charging, I check plus on battery connector when battery is plugged in and have 12v on + ... when laptop is off and put 12v from power supply I have 12v and 1.8A power comsuption but when charger is plugged in on power supply I have only 0.1A ...
Does anybody have idea what to check -
Re: Lenovo G770 won't work on battery
somebody know where is problem?Leave a comment:
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Re: Lenovo G770 won't work on battery
ooooo now i found new battery and when charger is pluged in ... power on... unplug charger and laptop works on battery.... but when charger is unplagged and i try to power it nothing happend... onLeave a comment:
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Re: Lenovo G770 won't work on battery
PU301 between 21 22 pin - 40ohm
PL301 and ground 552 ohm
PQ303 pins 1234 - 18.8v pins 5678 0.49v
PQ306 pin1 - 18.8v pins 2,3 -0v
PQ309 pin3 - 3v pins 1,2 - 0vLeave a comment:
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Re: Lenovo G770 won't work on battery
Djosla - KB930QF
Dumah Brazorf - PD101 on one pin 18.8v on second 12v (when charger is plugged in)
I check PQ101 when charger is plugged in I got pin1-18.8v pin2-18.8v and pin3-3v
no voltage when charger is outLeave a comment:
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Lenovo G770 won't work on battery
Hi guys...
I need help again...
I have one Lenovo G770 charging battery(pluged in, charging) and working on charger perfect... but when I disconnect charger laptop power off.... I looking on mainboard but I don't know where to start in finding problem... I guess some of mosfets dont switch on battery source...
In attachment is mainboard schema...
Please can anyone help me to find problem
...
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Re: Toshiba A660 LA-6062P Clicking mainboard
PQ18 0v on gate and when board click after that got 2.16v
PQ14 0v on gate and when click got 1.45vLeave a comment:
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Re: Toshiba A660 LA-6062P Clicking mainboard
same thing whitout PQ8... clicking...Leave a comment:
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Re: Toshiba A660 LA-6062P Clicking mainboard
Maybe I'm so stupid but I cannot find short on that part... I check all components that I marked with orange...
I try to change PQ8 and PQ7 and same thing happening clicking when I plugin charger...
When I check with multimetar PC174 in buzzer mod I got 004 value and beeping is that normal?...Leave a comment:
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Re: Toshiba A660 LA-6062P Clicking mainboard
I try.... put 19v on B+
no clicking....now need help where to search for problem
Leave a comment:
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Re: Toshiba A660 LA-6062P Clicking mainboard
I try with different charger... same thing happend
you mean to put direct 19v here on pq6?...Leave a comment:
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Re: Toshiba A660 LA-6062P Clicking mainboard
Sorry, wrong schema....
Here is right one...
I didn't find anything in short
...
Leave a comment:
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Re: Toshiba A660 LA-6062P Clicking mainboard
Here is PL10
I check mainboard but I didn't find short... I will check again now......Leave a comment:
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Toshiba A660 LA-6062P Clicking mainboard
Hi guys...
I have one toshiba a660 with very strange problem... when I plug in charger something on mainboard clicking... I dissasembly everythng and only mainboard with DC port and pluged in charger same thing happening... clicking...
I use multimeter and something strange happening at PL5 and PL4
PL5 5.17v and after clicks 4.09v
PL4 3.33v and after clicks 1.43v
PL10 0v always
Laptop won't power on and no battery charging
Please help...
Last edited by invisible4u4ever; 03-30-2017, 12:52 PM.
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