Hello, can anyone help please....Lenovo G50, PL701 and PL303 short to GND laptop dead
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Last edited by hispeck; 10-14-2019, 07:28 AM. -
Re: Lenovo G50-80 ACLU3/ACLU4 UMA NM-A362
Open jumper PJ303 and see which side is short and then apply 1-2V with high ampere on the shorted side to find out what is getting hot.
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Hi, everyone.
I have this notebook that won't charge.
In Windows, the charger icon doesn't appear on the battery, but the charger turns on the notebook normally.
PU301:
Pin 5 (ACOK) - 5.97v
Pin 6 (ACDET) - 1.83v (should have 2.6)
Pin 16 (REGN) - 6v
PQ308 has no gate voltage, so it doesn't drive PQ309 low
With the battery connected, its voltage goes the reverse way to the jack, having 14v and not 20v:
PQ301 e PQ302
Pinos 1,2,3 14v
Pino 4 5v
Pinos 5,6,7,8 com 14v... -
For Badcaps Readers, Please note that I am hopefully going to present this same message to Lenovo to see if they have any insight to the matter as well and figured to share the entirety here for clarification. The System is out of warranty as it is but does have the option to have it extended.
Model Information: T14 Gen 2 (Type 20XK, 20XL) Laptop (ThinkPad) - Type 20XK - Model 20XK0069US
Board: T14 Gen 2 (Type 20XK, 20XL) - Type 20XK.
System Hardware:
Processor: AMD Ryzen 7 PRO 5850U
Memory: 1x 16GB DDR4 3200 (Soldered on Board); 1x Crucial 32GB DDR4...09-08-2025, 10:46 PM -
Lenovo 80e5 g50-80 ACLU3/ACLU4 NM-A361 rev.1.0
hello I would like some help, my laptop Lenovo 80e5 g50-80 ACLU3 / ACLU4 NM-A361 rev.1.0 does not turn on. when I insert power the led4 flashes and the fan moves a little. I only found the diagram pdf 2014-09 -10 REV0.4. I would need for BoardViewer the version for my ACLU3 / ACLU4 NM-A361 rev.1 and also schematic pdf. Also doing measurements with the multimeter I find on the line + 1.35_VGS to ground 6.06 ohm. According to me too low.
am I facing a short circuit?
that line affects the rams soldered on the board
thank... -
Hello,
Lenovo G50-80 (ACLU3/ACLU4 UMA NM-A362) Rev 1.0
With battery laptop work perfectly ! But with charger no power and not charging ! What can be the problem??
Direct from Charger PIN no connect to laptop: 20.v
PQ301 (4407A)
Drain: 20v - 19v 17v fluctuating
source: 19v - 18 -16v fluctuating
Gain: 19v - 18 -16v fluctuating
PQ302(4483a)
Drain: 2.5v then 5 then 10v then 11v sometimes18 then again 2.5v again and again..
source: 19v - 18 -16v fluctuating
Gain: 19v - 18 -16v fluctuating -
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