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
Dell E5440 does not turn on
Collapse
X
-
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
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
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
to find the resistors and capacitors you have to do a continuity test multimeter find out PCH_RTCRST , AC_PRESENT ,+3.3V_ALW_PCH, when you press power find out any Voltage change SIO SLP S3/S4Last edited by Techtiger; 06-04-2019, 09:12 AM.Comment
Related Topics
Collapse
-
by masoksianHi 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.... -
by BowlineMy 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... -
by Naineesh1I just recieved a working laptop for a quick dc port swap, i tested the laptop on battery it worked, tested dc port issue felt loose, so disassembled the laptop and removed battery connector, swapped the dc port, re-connected the battery connector, inserted dc pin, white led glowed up - stable, pressed power switch, but it didn't turn on, no fan spin and no display. just 1 white led that glows up, doesn't move to orange (charging), i check voltage (battery : 11.37v) (dc input port : 19.3v)(bios : 1.75), i am stumped, there is no shorting on board.
Schematic diagram : bios chip volt... -
by javieromexHello, 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:
... -
by BenzohevThe laptop Dell Latitude E5520 oes not turn off - OS is loading.
I reflashed the BIOS; I removed the HDD, Wi-Fi module, DVD drive - I booted from a flash drive, sent the shutdown command - it turns off for a couple of seconds and turns on again! Maybe someone knows what to do?07-17-2025, 08:18 AM - Loading...
- No more items.
Comment