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Re: Dell E6430 shortcircuit
Where was the shorted cap? Does it have any reference that we can use to locate it in schematic? If not, provide a picture.
Previously you removed the CPU, it could be that dust got on the contacts. Remove the CPU and give it a good blow with compressed air. Also check if there is no broken/bent pins on the CPU itself.
Sometimes motherboards are picky and wont post without a good CMOS battery. Check yours if present or put a known good one and try again.
As for your BIOS, try cleaning the ME region. If you don't know how, post your original dump in the BIOS section and someone will help you.Comment
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Re: Dell E6430 shortcircuit
The cap is in bottom of the motherboard (check marked area in attachment)
I think the cap is 0.01uF, not sure though.
I tried another CPU, no luck.
I tried 2 bios upload in forum and are guaranteed working but i was not lucky either in this case.
What do you think about the cap?Attached FilesComment
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Re: Dell E6430 shortcircuit
Measure voltage on all the coils and report back. Check if the power button is triggering properly by measuring voltage on it. It should be 3.3V unpressed, goes to 0V when pressed then back to 3.3V when released.Comment
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Re: Dell E6430 shortcircuit
Just noticed the PL301 is broken and missing from MB.
Perhaps that's the problem or not critical component?Comment
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Re: Dell E6430 shortcircuit
What do you mean by broken? Physically or bad solder? Is there any voltage coming out?Comment
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Re: Dell E6430 shortcircuit
Physically broken, no idea how and when.
No voltage on either pins.
Switch has 3V and 0v when i pressed it but the MB remains on.
What a mess.Comment
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Re: Dell E6430 shortcircuit
Replace it if its broken and check again. Voltage present and stable on other coils?Comment
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Re: Dell E6430 shortcircuit
Which ones you want to measure?Comment
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Re: Dell E6430 shortcircuit
All of them but deal with the broken PL301 first. Check if PU300 is being told to turn on also, measure voltage on pin 5.Comment
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Re: Dell E6430 shortcircuit
PU300 has 3.3v on pin 5.
I'll replace the broken PL301 with one from the donor mb.Comment
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Re: Dell E6430 shortcircuit
OK great, hopefully PL301 is the only issue.Comment
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Re: Dell E6430 shortcircuit
Yes with PL301 the switch worked properly again, switch on and off.
I'll try it with screen to make sure everything works good and report back.Comment
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Re: Dell E6430 shortcircuit
All work, thank you very much mate!
If you ever come to Greece the beers are on me
)
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Re: Dell E6430 shortcircuit
Congrats! That feeling never gets old
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Re: Dell E6430 shortcircuit
I too had same problem, main line short ,
Found capacitor was short,
After that board turned on and took long time for Dell logo to come. And didn't boot windows
While testing ,it down again
now no more display at all and board turns Off ,
Stays on only 10 seconds.
All colis have power fine ,CPU & PCH heating normal.
What is causing problems.
Thank s in advanceComment
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Re: Dell E6430 shortcircuit
Likely to be a BIOS issue. Try to clean ME of your Bios, or try a known good bios dump.After that board turned on and took long time for Dell logo to come.Comment
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Hello,
Dell Latitude 5420 P137G
Board: LA-K491P REV A01
I have received this laptop which was described as "does not power on or accept charge." Battery shows no sign of charging when charger is plugged in, nor does the board show any signs of life when battery is unplugged and charger is plugged in. No light from the LED at all or any other indications of activity.
Board seems to have no shorts, all power rails are fine and show high resistance.
When charger is plugged in, voltage is present in 3.3V rail but absent in others.... -
Hi, I have a Dell Inspiron 7567 LA-D993P that I've just got running.
There was corrosion around PU1503 which shorted PC1518 & blew PL1504. (Reference pictures attached)
I've replaced PC1518 & PL1504 & the laptop is now running however I now have another issue.
Here are the tested scenarios:
1. With the laptop running on battery, I plug in the 150W charger & the charger shuts off (no LED, protection mode) but the laptop remains running on battery.
2. With the laptop off, plug in charger (LED says on) & the front charging... -
My question pertains to understanding the control circuity inside a Dell PT434 type battery used in Dell E6400, E6410 and other Dell notebooks?
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I have tried multiple different Dell power adapters. My Dell... -
Hello, I received this laptop with the following condition: When I turn it on, it shows the ALIENWARE light and the Alien button lights up, then it does not show an image and it restarts constantly, as the customer had already informed me that the battery was dead, I connected an original charger that I had it for testing, the machine turned on normally and I was able to enter Windows without problems, after a while of testing I noticed that it is very slow (like a Cyrix 425...), and after performing a CPU test the frequency is
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The charging indicator light on my ASUS X54H laptop is always on even when the charger is disconnected.
Windows also shows ''Plugged in'' when charger is not connected.
This problem started year ago gradually, when unplugging the charger the charging light took several seconds to disappear, then minutes, and now almost always on even when unplugged for an entire day.
Strangely, before sometimes immediately when plugging in the charger the charging light went away, and later came back with it connected.
If I let battery run out and say it has 3% Windows will...
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