My dell is turn on get black screen and continuous clicking sound from speakers,try cmos clear only ones get screen and after that nothing assuming to flash the bios but dont know how because screen is black and clicking continuous sound
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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... -
it was working yesterday, i opened it up and saw this mess. boardview and schematic uploaded for convenience.
PU200
pin 17 vreg5 = 0v ~ solder joint was corroded and flicked right off with my probe, was able to get clean and reflow, rest look fine.
pin 8 vreg3 = 0v
pin 13 en = .2v
pin 1,6 entrip1,2 = 0v
b+ and b++ = 19.5v
+5valw = 0v & 25+ohm to ground
+3valwp = 0v & 25+ohm to ground
i cleaned the board up just a little and can get more pics.
where should i be looking? thx... -
hellolaptop dell 3521 la-9104p no light on screen
i can see data ok but no backlight
on jlvds
NV_PWR_SRC 18 v is ok
3vs is ok 3.3
lcdvdd is ok 3.3
i replacd led screen
and change flata ( caple between board and led )
any idea... -
Hello all, I have a Dell Latitude 5420, before I upload the bios I thought I would ask. All I am getting is are coloured screens from one colure to another continuous that's all its doing.
I have searched on google some say this is a graphics problem and not a bios problem. I did try another bios file from the forum it stops at the Dell logo.
With the original chip fitted I am getting error code 3 amber and 3 white flashes.
Any advice please ?.09-02-2024, 03:43 AM -
Hello!
I have problem with Dell Inspirion 15-5567
CPU I7-7500U
GPU AMD
Laptop has won't turn on.
The U1 chip it was burned and i replace him but laptop it is still death.
I measured the values on the coils with RAM inserted:
PL1401: 42Ω
PL605: 10Ω
PL603: 14,6Ω
PL100: 0,8Ω
PL101: 62Ω
PL700: 13,4 mΩ
PL501: 3Ω
PL601: 25,8Ω
PL1103: 22,4Ω
PL1102: 22,7Ω
PL200: 267Ω
PL300: 0,8Ω
What can I do to repair this motherboard?
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