does anyone have a schematic for the dell alienware LA-L762p board? The board measuring a direct path to ground on coil pl501. i'm not sure which rail it is or if it is even shorted
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What is the exact resistance? Direct path = 0 ohms = yes a short.direct path to ground -
it's 0 ohm. shouldn't i know the voltage before i inject?Comment
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Not needed but keep your injection voltage @ 1 volt or lower. Then check who is heating up. Hope it is only a cap.Comment
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i'm not seeing anything heating up at 1 volt. i found a schematic and +5VALWP is the railComment
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Post and link the schematic in the schematics forum. What is the current draw when you inject this voltage? With 0 ohms to ground, someone is shorted and they will heat up. If needed, increase the current setting of your power supply. A setting of 3A-5A should be ample. Be sure it is not the CPU (ie. remove the heatsink to check).
Perhaps one of the USB loadswitches / Vbus caps are shorted?Comment
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i found the shorted cap after ramping the voltage and ampage and will post the schematic in the schematic forumComment
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Yours is one of the ideal cases we can all hope for. Bad caps indeed.Comment
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Hello:
I have both these laptops that appeared to have the same fault so I thought I would have a go at replacing the PCH as something to learn, they both are using the same PCH.
I started on the ACER:
Up on connecting power no signs of life but current is consumed from the bench power supply and the PCH is hot.
All the caps on the top of the PCH are showing 0 ohms and the 3.3v rail is shorted.
I followed the videos from Sorin, Electronics Repair School on Youtube heating from the bottom to install. I practised on around 10 scrap... -
My question pertains to understanding the control circuity inside a Dell PT434 type battery used in Dell E6400, E6410 and other Dell notebooks?
Does anyone have a circuit diagram for the inside of a Dell PT434 battery and/or a description of how the control lines work to control this battery?
My reason for asking is I have a battery which I cannot get to charge beyond 1% in a Dell E6410 or E6400.
The LED bar graph charge indicator on the battery shows one LED lighted when the info button is pressed.
I have tried multiple different Dell power adapters. My Dell... -
Boa noite, pessoal e o seguinte - Eu trabalhava como (contratado) para uma empresa que me forneceu um laptop Dell - Conforme a descrição a baixo - Concluí o contrato há mais de 2 anos, mas eles nunca solicitaram ou me enviaram instruções sobre como devolver o laptop, então ele ficou sem uso desde então. Acho que o prazo de prescrição expirou e gostaria de redefinir este laptop para poder usá-lo como um dispositivo pessoal.
Infelizmente, o BIOS está bloqueado, então não consigo inicializar a partir do USB. Consigo fazer login no computador usando minhas antigas credenciais...Today, 12:23 PM -
Hello, I have a Dell Alienware M15 R7 INTEL LA-L651P which does not detect the dGPU which is a 3060M, I tried reprogramming both BIOS, without success, the dGPU has all the voltages, I do not know how to make it turn on properly with an external power supply, since outside the case, it only turns on for a second and turns off.
I tested in vBios and on pin 2 of the eeprom I have no voltage, on pin 1 I do have 1.8V
I also disabled the hybrid GPU in the BIOS settings and the Windows startup sound is heard but there is no image, with a color code of 2 red and 7 blue on the power LED. It... -
Dell Alienware M11x R3 Laptop Schematic
LA-6961P...11-01-2024, 02:52 AM
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