ahmarzo
Senior Member
Last Activity: Today, 10:56 AM
Joined: 03-17-2015
Location: maharastra
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Yeah changed from same part no scrap motherboard.thanks for the suggestion. -
Thank you mon2.pin 1 and 2 was showing 200 ohms as resistor value was changed after changing it to 0 ohnes the laptop is working on battery.thanks againLeave a comment:
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Sorry for late reply
Drain to source is 440 ohms
Drain to gate shows 3 mega ohns
Gate to source shows 3.5 mega ohnsLeave a comment:
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la-j081p charging issue
[B][I]Have Dell [/I][/B]la-j081p laptop with battery issue.
First the laptop was not charging pqb25 was short after changing pqb25 and pqb26 the laptop starts charging and runs properly on charger but battery it shutdown after 10 seconds.
And when powered on only on battery the laptop turns off after 8-10 second without giving display.have tried another battery on another working laptop and it's working fine
I have changed charging ic and pqb25 ,pqb26 and pqb13.
When adapter is disconnected the laptop stays on battery for 8-10 sec then abruptly shutdown everytime.
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Acer TMX314-51 laptop battery problem
I have acer laptop tmx314-51 with part no 6050A3020501.
The laptop is working fine on adapter and battery is also charging and when adapter is disconnected in on state the laptop gives backup on battery and gives good backup.
But when laptop is powered on through battery only the laptop does not power on and there is 0 voltage on battery connector.
I have not not tried another battery as it is not available locally could this be a battery problem.have checked discharging mosfet and there is no shorting to ground on any pin of battery connector.
The schematic is not available... -
Hp laptop charging problem
Have hp laptop motherboard part no opp 17 diner skl/kbl 15289-2 with charging problem.the laptop shows plug in charging but percentage doen not increases.the schematic or boardview is not available.
Charging ic is bq737 with voltages on pin no
1&2 -19v
34&5 -0v
6 -2.56 v
7- 0v
8&9 -3.15v
10 -0v
11 -0.18v
12 & 13 -13v
14&15 -0v
16 -6v
17;18&19 -13v
20 - 19v
Voltages on battery connector are
1&2. -13v
3&4 -3.14 v
5&6 -0v
8&9 are ground... -
thanks mon2 for the reply
pin 28 on u5901 is 8.2 v
battery connt voltage is following
pin 1-2 8.2v
pin no 3 =3.3v
pin no 4 =3.3v
pin no 5 =0.29v
pin no 6 =0v
pin no 7,8=gndLeave a comment:
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Lenovo IdeaPad 330s no display on battery
Have lenovo IdeaPad 330s with motherboard part no 330s_kbl_v09.the laptop works fine on adapter and the battery charges fine .but when powered through battery power stays for 1-2 seconds and shutdown.have changed the charging ic and bq24780s and tried another working battery
When power button is pressed on battery 3v and 5 v comes and goes and all voltages are present for 1-2 seconds.
Help me solve this problem here is the link for schematic [url]https://www.badcaps.net/filedata/fetch?id=3230319[/url].
Thankshttps://Have lenovo IdeaPad 330s wit...v09.the laptop -
changed the second mosfet but same problem...Leave a comment:
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Hp 15-cs laptop 5 times dc jack blinking white
I have two laptop hp15- cs1000tx with motherboard part no DAG7BDMB8F0 REV F
First one was not powering on when battery is connected the first n channel MOSFET was short and after changing the laptop started on power and battery and charging fine
Second laptop has water damaged on ram ic after cleaning and changing the ic the laptop is working fine now
But now I have power led continuously blinking 5 times in both the laptop even after shutdown and when it is powered on the led keeps blinking 5 times .both the laptop is charging and working on both battery... -
hi i have laptop 640 g9 with serial number 5CD422186Q i want to remove the bios logo from a company name to hp logo.this is a abackup of working bios with board part no DA0X8SMB8H2 REV H....Leave a comment:
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asus x412dk rev2.1 onboard ram disable
hi have asus motherboard with part number x412dk rev 2.1 with no display problem have already flash the bios with working file but no display.can anyone help me with disabling the onboard ram as it have a ram slot.thanks here is the boardview link [url]https://www.badcaps.net/filedata/fetch?id=3477103[/url]https://hi have asus motherboard wit...filedata/fetchLast edited by ahmarzo; 11-27-2024, 09:23 AM. -
hi after shorting pin 2 and 3 of pq6 i got 9 v on gate and laptop started working on adapter and i got display but the battery is not charging and i got 4.4v on ps_id.Leave a comment:
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hi thanks for reply both mosfets are not short and ic pq9 ic 88738h has no voltage on any pins.gate voltage on first mosfet is high laptop has only 19v dcin and 18.3 v on gate of first mosfet...Leave a comment:
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Thanks for the reply mon2 but the laptop is not powering on with the adapter without battery and 19v does not pass through the first MOSFET I have changed the charging ic 88739a.the pq9 is p channel MOSFET if i am not wrong but I get 18v on the gate .Leave a comment:
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dell ddm90 la-f381p no power on adapter
have dell la-f381p no power on adapter working fine with battery but not charging.first mosfet pq9 has 18v on gate.+3.3V_VDD_DCIN is missing and i have 1.6 v on pin 3 of lm393 and no voltage on all the pins.cant find schematics with same board no but have attached similiar schematic [url]https://www.badcaps.net/filedata/fetch?id=2083398[/url]. any help is appreciated thankshttps://have dell la-f381p no power ...ind schematicsLast edited by ahmarzo; 11-21-2024, 09:48 AM. -
Have tried another charging from working laptop but the laptop power on and off in a loop.please helpLeave a comment:
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dell g3 mlk n18p 19795-1 no display
have dell g3 laptop motherboard with part no g3 mlk n18p 19795-1 with no power and 19v shorted the problem was nb694 part no pu5401 was shorted upon replacement shorting was removed and aftergiving power charging ic intersil 95522h got burned. but everything was working perfectly on battery so i changed the charging ic and now the laptop is contiously power on and off on both battery and charger with no cpu core voltage
here is the link for schematics [url]https://www.badcaps.net/filedata/fetch?id=2099938[/url] .https://have dell g3 laptop motherbo...p 19795-1 with -
bios not working the laptop does not power on with this bios please anyone help...Last edited by ahmarzo; 10-21-2024, 09:53 AM.Leave a comment:
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Hi everyone have a dell vostro 5402 got no display after firmware update with service tag no-FVHLD63 board part o mkb-v tgl 8l mb 19862-1...Leave a comment:
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