ihave dell 14z-n411z mainboard (da0r05mb8d0 rev d) missing 3 mosfets pq4 & pq5 & pq1 and i/o u13
any one have schematics or good pics for this mb
any one have schematics or good pics for this mb
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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... -
Hi everyone, i got a Dell G7 7588 missing +VCC_CORE and +VCCGT, i have already checked the power on sequency, everything seens to be fine, i also have PCH_PLTRST# signal present.
the laptop turns on but no video.
i flashed a new BIOS and also Clean ME, same issue.
i already replaced PU5000 NCP81215D
DRVON 4.75v
VR_RDY 3.3v
EN 3.3v
+VCCSA 1.04v
+VCC_CORE resistance is 4ohm.
no GPU power also but if i remove the +VCCSA coil i have the GPU powered and the VRAMs.
Thank you.01-31-2025, 10:32 AM -
I'm looking for the schematic or the numbering of the components that are missing on this board since they brought it to the workshop but without the parts and I can't find the schematic or anything about this board
DELL LA-C642P
THANKS08-28-2024, 06:29 PM -
Hello everyone, I have a Dell Inspiron 15 laptop, motherboard dell vegas 15341-1.
The laptop does not start, does not provide 3.3V ALWS and 5V ALWS because it does not receive enable from EC (ALWON signal is missing). The ISL circuit provides ACOK for EC but EC no longer provides ALWON for the 3.3V and 5V ALWS source built with TPS51225. EC is supplied with 3V from 3VLDO from TPS51225. On the power button I have 3V and it reaches EC.
EC is on page 24 in the attached file.
Please tell me what other conditions can inhibit EC that not to provide ALWON? I looked at the schematic,... -
Hello everyone,
Anyone with a Dell 7330 LA-581P can take a close photo of the bios section as i only have board view ( no available schematic ) and i need to search for the correct values. Please see attachments...02-28-2025, 12:45 PM
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