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Search: Posts Made By: lapfix
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 06-18-2022, 06:12 AM
Replies: 12
Views: 361
Posted By lapfix
Re: DELL 3521 PS_ID Woes

Update :
Solved one , it was PQ900 the faulty component.

+ with Dell , never try with PSU it gives me wrong voltages ( For PS id section ) .
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 06-17-2022, 09:37 AM
Replies: 12
Views: 361
Posted By lapfix
Re: DELL 3521 PS_ID Woes

Hello friends.

Problem: PS_ID isfluctuating between 0.100 and-0.150v,..Adapter Unknown. but Laptop is booting fine with adapter only... booting from battery too ...and can't charge the battery...
Forum: BIOS Requests ONLY! 06-14-2022, 02:24 AM
Replies: 5
Views: 1,136
Posted By lapfix
Re: Ideapad 320-14ast

Thank you peste
Forum: BIOS & Schematic Requests! 06-11-2022, 04:46 AM
Replies: 2
Views: 117
Posted By lapfix
Re: bios

post your old dump
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 06-11-2022, 01:47 AM
Replies: 1
Views: 137
Posted By lapfix
Re: Lenovo 320 NM-b241 memory issue.

Update : unfortunately it was the CPU.
1.2v suplly both Ram and Cpu
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 06-10-2022, 09:39 AM
Replies: 1
Views: 137
Posted By lapfix
Lenovo 320 NM-b241 memory issue.

NM-b241 don't Power on completely , just 0.160 amp .

On board Ram

After taken some measurements , followig the power sequence PG47 , i reach only step 7...didn't find anything about step 8...at...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 06-10-2022, 03:11 AM
Replies: 6
Views: 221
Posted By lapfix
Re: HP 15-la c701p turn on but no post

Yes , i agree with your conclusion .
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 06-09-2022, 08:29 AM
Replies: 6
Views: 221
Posted By lapfix
Re: HP 15-la c701p turn on but no post

Thank you mcplslg123

UC10 :
pin 2 = 1.363v
pin 5 = 1.3.63v
pin 4 = 4.95v
QD1 :
Drain and source = 1.363v
Gate = 4.95v
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 06-09-2022, 05:01 AM
Replies: 6
Views: 221
Posted By lapfix
Re: HP 15-la c701p turn on but no post

Hello friend...it was a mistake ...1.365v
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 06-09-2022, 04:36 AM
Replies: 6
Views: 221
Posted By lapfix
HP 15-la c701p turn on but no post

Hello friends

Model: HP 15-la c701p turn on but no post at internal and external .
All voltages are present on its coils, consumption is :
with ram = 0.342 amp
without ram = 0.331 amp


I...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 06-03-2022, 03:17 AM
Replies: 35
Views: 871
Posted By lapfix
Re: Dell Inspiron 5520 LA-8241P Not working with battery(For freshers only)

If i m understanding the issue :

It works perfectly fine with adapter...but shut off when only connected with battery !

All your measurements are presents.

What's the consumption when on...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 05-26-2022, 06:16 AM
Replies: 9
Views: 190
Posted By lapfix
Re: Acer 5741 LA-5892p not power on.

Hello again and sorry to be late....and the lap is solved

RTCBATT = D1 = 2.7v
Without PD 15 i got this voltages at the place of pin :
1 = 5.22v
2 = 4.62v
3 = 3.125v

Removing pq56/58 sitll...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 05-25-2022, 08:58 AM
Replies: 9
Views: 190
Posted By lapfix
Re: Acer 5741 LA-5892p not power on.

yes i confirm
0.325 reading for 2 to 1 and 3 to 1 , 0l at reverse
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 05-25-2022, 07:51 AM
Replies: 9
Views: 190
Posted By lapfix
Re: Acer 5741 LA-5892p not power on.

26mv...tested with diode mode pd is ok
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 05-25-2022, 07:20 AM
Replies: 9
Views: 190
Posted By lapfix
Re: Acer 5741 LA-5892p not power on.

Thank you mon2...yes i read all the threads post it here to know more...and i read also yours.

Yes i know for your logic about PQ65...so pin 2 = ACOFF is 0v ...i doubt like you maybe he's shorting...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 05-25-2022, 06:47 AM
Replies: 9
Views: 190
Posted By lapfix
Acer 5741 LA-5892p not power on.

Hello friends , thinking was easy to fix...but :spin:

Got this Acer 5741 5742 LA-5892p that didn't power on.

When charger is plugged ,got only 7v at PR351 = P3..the 2 first mosfet are ok but i...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 05-23-2022, 08:38 AM
Replies: 12
Views: 203
Posted By lapfix
Re: Asus X550JX rev 2.0 not power on !

When i change R3037 ( 100Kohm ) , whent measure at the donar board i find 96 kohm..so it's ok but when soldered at this board and measured = 60kohm.

Seems like bad SIO as mcplslg mention before !!
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 05-23-2022, 08:13 AM
Replies: 12
Views: 203
Posted By lapfix
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 05-23-2022, 08:06 AM
Replies: 12
Views: 203
Posted By lapfix
Re: Asus X550JX rev 2.0 not power on !

Ok
my board is Rev 2.0 but i use 2.1 BRD.
I use automatic range , so just put my meter scale at the ohm signal ( am i right ! )

pin 1 = lid_sw = 156 kohm
pin 2 = GND
pin 3 = pwr-sw =...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 05-23-2022, 07:00 AM
Replies: 12
Views: 203
Posted By lapfix
Re: Asus X550JX rev 2.0 not power on !

Thank you mon2
sorry i mean D6201 (D3201 is at another donar board)
C3037 is not populated at this motherboard

It should be pulled to ~3v due to R3037 function = yes i know that's why i change...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 05-23-2022, 03:49 AM
Replies: 12
Views: 203
Posted By lapfix
Asus X550JX rev 2.0 not power on !

Hello friends
Got this motherboard with ram buit in that didn't power on : Asus X550JX rev 2.0

No short to GND At all coils.

When i connect charger cable ( from power supply ) the lap is on ,...
Forum: BIOS Requests ONLY! 04-28-2022, 05:49 AM
Replies: 10
Views: 344
Posted By lapfix
Re: MSI GL62M 7REX no Post.

thank you my friend but Same issue
Forum: BIOS Requests ONLY! 04-28-2022, 04:11 AM
Replies: 10
Views: 344
Posted By lapfix
MSI GL62M 7REX no Post.

Hello friend .
I got this lap power on but no display ( internal and extaernal).
All voltages are present , PLtrst too.
I suspect bios if someone can help.
Mine is : 16J93.3h1A , i try 16J93.324...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 04-28-2022, 02:09 AM
Replies: 17
Views: 621
Posted By lapfix
Re: dell inspiron N5050 3v,5v alw no present

As mcplslg123 mention before take the voltages at this pins and post it here

U2701A page 27 :

PSL_IN2 pin 93
PSL_IN1 pin 73
PSL_OUT pin 74

S5_ENABLE pin 14
Forum: BIOS Requests ONLY! 04-24-2022, 04:11 AM
Replies: 8
Views: 423
Posted By lapfix
Re: hp dmi data tool

Post your bin , i m always search by typing 5CG at HDX tool search
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