please can any one help me with Acer MS2394 Schematic?a customer brought it to me with a water spillage on mobo and after drying the mobo i tried to see if board will work by putting it on,its worked when i pressed the power bottom but after insetting the HDD to see if mobo will work ok it went off with powering again,please can anyone help me?tnx in advance
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Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.
Upon bringing it home and plugging it up, it showed a standby light.
I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.
The screen seems to blackout and stay black, but with a flashlight I can see the display.
With my Playstation 4 connected via HDMI, and running a game I can hear sound.
Assuming... -
[HELP] Acer AN515-55 (LA-J871P Rev: 1B) – Board won't power on after GPU investigation – Suspecting Super I/O or PCH
Hi everyone,
I'm working on an Acer Nitro 5 unit with the following specs:- Motherboard: LA-J871P Rev: 1B
- Model: Acer AN515-55-59MT
- S/N: NHQ7JAL00403906A973400
- SNID: 03902728734
Initial Issue
The laptop initially presented graphic issues and driver failure (Code 43) for the GPU.
After preventive maintenance (cleaning, thermal paste, etc.), it powered on normally. We disassembled it again to inspect the GPU, reassembled... -
Hi everyone,
I have a NM-A321 board that is dead, with no power at all.
When I received the laptop, the +5VPMIC line was shorted. Removing the PU3 (ISL95905) solved the short, so I ordered and replaced the ISL.
With the new ISL, the short is gone, but still no voltages at all. I measured the following rails:- +3VALW
- +5VAUX
- 1.2VSUS_PWRGD
- 3VALW_PGD
- 1.05VAUX_PWRGD
Additionally, the ISL95906 (PU3) is not getting any voltage on the VIN rail.
The only place on the board where I find any voltage is on the first MOSFETs, specifically:... -
I'd like to offer an Acer IPIMB-AR Rev: 1.02A fullflash BIOS (cleaned ME region). The model is for Acer Predator G5920.
It is a model that is based on Intel Z77 PCH and doesn't have on-board graphics and video connectors.
I suppose it doesn't have any restriction about discrete graphics cards (I mean they don't have to be in a whitelist).
Please don't mistake this mainboard with a similar model with on-board graphics and based on Intel B75 PCH.
Jumper FLASH_OVERRIDE
default position: 1-2 - BIOS area protected
position 2-3 allows to dump BIOS or write...06-26-2025, 05:15 AM -
Hello, the DSLR has heavyly fallen. It is dead : no sign of life and display nothing.
When it worked, it always displayed a card present state on LCD display, even when the battery is empty it display a empty battery symbol.
I found a dead fuse, I replaced it and a mosfet burnt, I changed it and another fuse burned. Nothing burned after. And I can't find any short circuit anywhere, it's weird.
Now, I try to understand how it works.
There is two boards (the little one on pictures has no component) : the first is a « power board » : managing...