Hi
I have a Lenovo ThinkPad L15 and i need a BIOS .bin file
Model: ThinkPad L15
Board number: GL4A5/GL5A5 NM-C741 rev 1.0...
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Okay, before I begin, let me note here that I am no expert on the matter. All of the info below is based on information that I found on the web, in capacitor datasheets, and some experiments I conducted myself.
So what is electrolytic capacitor reconditioning (also known as reforming)?
Basically, it is applying the maximum rated voltage on capacitor for a period of time. This is done in order to rejuvenate the electrolyte and/or aluminum oxide layer inside the capacitor.
Which electrolytic capacitors should be reformed?
- Ones that have been sitting... -
Please if someone can help me with a working BIOS dump for Lenovo ThinkPad 13 Type 20J1 Gen 2 as I search every where online and cannot find it.
Many Thanks in advance. -
Phiilps 50PUS6554
Chassis TPM14.6E LA
Hello everybody
I checked the power supply of the TV set which is good , and now it appears clearly to be a software problem.
I could not find any dump for this model, can you help me ?
Thank you and have a nice day.... -
Hey mon2. I’ve got another crazy case for you that never happened to me before.
A2179 board, PPBUS_G3H short, 2 ohms.
injected voltage, 1V 5A limit, 200mA draw.
decided to increase to 2v, amperage draw instantly dropped to a few mA.
the resistance of the rail actually went from 2 ohm to 100 after that, and PPBUS went from 0mV to 700mV.
checked the resistance of the 4 current sensing resistors around the ISL, all fine. Removed the ISL, went from 100 to 160 ohm.
Replaced it, still 160 ohm.
Removed the 2 ISL mosfets. Still the...
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