I have another problem with a Dell E5440 VAW30 LA-9832P which is not a sign of life, LED off, I checked + 3.3V_ALW and + 5V_ALW are present, but I noticed that it is missing + 5_RUN and the + 3.3V_RUN size 1.09v on U46 on this the RUN_ON and SIO_SLP_S3 # signals are missing and also on U45 and U43 missing also + 3.3V_M which feeds the two bios U1 and U2
-
Last edited by poweron; 06-02-2019, 06:55 PM. -
Re: Dell E5440 does not turn on
Check kbc for basic requirement first. Rsm_RST & LID_SW present?? -
Re: Dell E5440 does not turn on
hello, I'm sorry but I can't find them, what pins are they?Comment
-
Re: Dell E5440 does not turn on
these signals are not written on the KBCAttached FilesComment
-
-
Re: Dell E5440 does not turn on
You can measure rsm_rst on U41/42Comment
-
Re: Dell E5440 does not turn on
Lid signal perhaps is on daugther board in this mb.Comment
-
Re: Dell E5440 does not turn on
Check also PS_ID , ACAV_ID(ACOK)Comment
-
Re: Dell E5440 does not turn on
PU402 pin5 is ACOK the same signal goes to SIO KBC & check POWER_SW#_MB 3.3V (# =high low) when pressing Power this will go to 0V and come back to 3.3V ,POWER_SW_IN# 3.3V after R329 test #, make sure RTC_CELL for no shortLast edited by Techtiger; 06-04-2019, 02:24 AM.Comment
-
Re: Dell E5440 does not turn on
ACOK is present on pin 5 of PU402, pressing power on / off button POWER_SW # _MB from 3.3 goes to 0v and returns to 3.3vComment
-
Re: Dell E5440 does not turn on
What about POWER_SW_IN# 3.3V after R329 test #,RTC_CELL for no short?Comment
-
Re: Dell E5440 does not turn on
had a board with the same problem. i had put it aside for a couple of months as it needed a new lcd and when i tried to power it on , no power at all. voltages where present. i reprogrammed both bios chips but still nothing.Comment
-
Re: Dell E5440 does not turn on
+ RTC_CELL is present = 3.1v I cannot find the R329 on the board, the names of the resistors and capacitors are not writtenComment
-
-
Re: Dell E5440 does not turn on
AC_PRESENT is present, 3.3v , + 3.3V_ALW_PCH = 0v, PCH_RTCRST I can't measure, SIO_SLP_S3 / 4 is always 0v also pressing power buttonComment
-
Re: Dell E5440 does not turn on
should I flash U1 and U2? I saw several files, do you know which one is the best surely flickering?Comment
-
Re: Dell E5440 does not turn on
when I select the file to program a ch341a programmer message comes out: file too long, what to do?Attached FilesComment
-
-
Hi everyone,
I am dealing with the problem of turning on and off my Dell e7470 notebook.
The battery charge light is solid white, I press the button, the power indicator and the light on the button are solid for 1-2 seconds and immediately turn off.
The system does not turn on, there is no post.
I removed the RAMs and changed them, changed the battery, RTC battery, AC adapter, removed them and waited, tried again, it does not turn on.
The problem continues in the same way.
I tried to turn on the Fn key, nothing came to the screen.... -
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... -
Hello, any help will be apprecited!- Model: Dell G15 5511
- MB: LA-K452P
- Issue: Won't turn on at all, no leds, no keyboard light, no fan spin, nothing happens when pressing power button. NOTHING.
- Customer reported it was turned off and left plugged in during the night and thats it...
- No signs of liquid damage or burned components.
I have checked so far:
... -
I have a Dell laptop with me, a DELL inspiron 13 5379. It doesn't turn on. After some investigation, I found that the charger is delivering 0-3V instead of 19.5V, and this voltage fluctuates constantly. Additionally, two ICs are overheating. I searched for these ICs, and it seems they are likely related to the issue of not having 19V.
Should I inject voltage somewhere, or should I replace the ICs right away?
So, PU4301 is overheating, and the surrounding area is hot, possibly just because of this IC.
... -
Hi all
I've been working on dell 3421 that won't turn on/charge
Specs: i3-3217U no discrete gpu
The behavior is
-won't charge (charging light up for 3 second and goes away)
-won't turn on if both battery + power adapter plugged in
-in other way it can turn on with either power adapter only or battery only
But sometimes all this issue goes away with no clear reason.
Does it indicates faulty board chipset?
Thanks
Comment