Hi ! I have dell 1550 .somwhere short unamle to find yet.
Adapter led turns off after inserting in laptop
Adapter led turns off after inserting in laptop
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Re: Dell 1550 short
unable to find and mosfet ,capacitor short.or nothing heating. can i change Tps51125 with Tps51123.
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Re: Dell 1550 short
There is a problem with EN pin when substituting 51125 and 51123. See this thread here https://www.badcaps.net/forum/showth...ibility&page=2
see page 2. It can be done depending on the use of that pin.Comment
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Hi All, I have a 9th Gen Dell Optiplex micro PC motherboard which doesn't power on. When I connect the motherboard with power adapter, it goes into safe mode and turns off. So from info I have gathered online, it looks like there is a short circuit on the motherboard. So can you guys help me with figuring out the issue?
I am new to electronics repair, so my queries could be naive but I am ready to learn.
So I have a multimeter and a solder with me. But I can try to get a variable voltage power supply with a thermal camera as well. From what I seen online, best way is... -
Hi all,
I have recently picked up this Dell OEM Nvidia GTX 750Ti 2GB Video card. Its an old card I know but still wanted to get it working if possible. The problem is the following:
- Put the card in my testing motherboard and start running Heaven benchmark
- Benchmarks seems to run smoothly up until half way then the motherboard completely shuts off immediately
- Try to start it again and I get a slight move from the PSU fan - a clear short
- A little troubleshooting later I find one shorted Mosfet - Replace them both - short is gone
- Put the... -
the comon problem they say , the charger will shut off power once plugged to laptop , i dont have battery, its long gone ago , i use it for backup with adapter and vga port to external monitor(yes no screen lcd) in case my desktop needs fix . one thing for sure i could say the clr resistor - r010 beeps ,short at both sides , the checked all the coils , the 3 coils together gives all of them beeps short along with their respective capacitors . i dont have voltage ampere injection dc machine as in videos i have seen they see where its getting hot and they remove the short and replace components... -
Dell E6430 19v line short,
(QAL80 LA-7781P)
19v rail, output side was showing a short (checked after removing CLR), a polar capacitor (PC1074-processor decoupling) in the core section was getting heat, when replaced that cap, the short gone, but when power on the machine, again that cap was heating (even had removed the processor already). so not understanding even no processor attached why this cap was getting shorted again and again
any guidance please.
Schematic:
https://www.badcaps.net/forum/attachment.php?attachmentid=239428&d -
dell lattitude 5310 3d3v_S5 short to ground and power vcore cpu inductors short to ground what is my shorted component
i dont have bench power supply to injject
i attached the boardview for motherboard
[Mod. Edit] Do not attach schematics/BV here at Tech section please.
If you want to add a schematic/BV, find an existing thread at Schematics requests sub-section to do it, or if such doesn't exist create a new one.
Boardview -> https://www.badcaps.net/forum/troubl...shooting-lapto...
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