Hi everyone I've been fixing computers for years but I have started to try my hand at laptop repair I have a acer aspire 5742 and it is dead there is no lights on it when plugged in I have tryed taking out the battery and also doing the static discharge but nothing. I tested where the DC plug connects into the motherboard and its getting 19 volts I don't know what to test next
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Re: Dead 5742
You can start with flash the bios.The Night Drop Down, I Will Keep Try Until..., You Never know.
Dushi Kòrsou, Nos Tei. -
Re: Dead 5742
Try this..Comment
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Re: Dead 5742
This may sound daft but I'm new to this how would I flash thisComment
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Re: Dead 5742
5742 suffer for bad kbc ec bios. try flash it.
u need usb programmer, desolder , save file (always a good thing), program it and solder it back.Comment
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Re: Dead 5742
I am fully satisfied with EZP 2010 but there is a lot of options, just find the best solution for you.Comment
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Re: Dead 5742
I'll have a look at investing in one of them and giving it a go just get nothing no lights or out at the momentComment
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Re: Dead 5742
Do you think this is the most likely cause of it not showing any signs of power thenComment
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Re: Dead 5742
Yes, this is the first thing I would try and will fix more then 80% issues like this for 5742.Comment
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This specification for the Acer Nitro AN517-51-5742 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the AN517-51-5742 boardview and AN517-51-5742 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download...09-06-2024, 12:10 PM
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Hi all,
As the title suggests, how can I be sure that my EC chip is really dead?
I've recently gotten into this hobby of laptop repairs, and have successfully brought back to life a couple with some easy fixes, mostly shorted caps.
Now I'm working on HP Probook 455 G8, that had some "devil" run around on 3V line, burning a bunch of stuff. Luckily I have a dead 455G7 (for spare parts) so I managed to fix it (swapped burned parts) to a point that it will charge (both on barrel jack and usb-c), but it doesn't want to turn on. There is a 3V3 on a keyboard... -
hello guys,
i need help to repair a edm-033 ps2
history : as always hdmi port and usb ports destroyed after unplugged
after change them, ps5 dead too : 1 beep, no blue light. after inspection 1.8v power was shorted, and because of dead panasonic chip. after remove it : no short anymore
so i changed it
now i have got 5v stby,, 3.3v stby, 3.3v power, 1.8v power and no short on them
but the ps5 is dead again : 1 beep, near 10 seconds with power lines and then off, no blue light ...
i don't see any projection of liquid metal on pcb.
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Hi guys!
I searched for the term "dead short" in the forum but no specific thread came up however if I'm just blind and couldn't see the thread talking about this please forward me to that direction.
So my problem is I don't know how to find the source of a dead shorted voltage rail. Dead short = ~0 ohm resistance.
I have two VGAs (HD 4850 and HD 4870), both dead shorted to ground on the memory rail. I have the boardview file for the 4870 and the memory rail consists around ~7892346 capacitors...
I have a bench PSU and if I try to inject voltage the voltage... -
Hello everyone hope all doing well!
I have this PSU (GPS450-AA delta oem) around for like 4-5 years and I had it recapped early 2020 or 2021 with mostly UCC KY and Nichicon PW's. The bulk was and still is fine, the original Ltec's were bloated and empty. The previous issue was some major coil whine noise and at times random shutdowns when going idle. Today it started tripping the mains breaker and I think I have dead APFC mosfets (20N60C3). Right now upon checking I have the Q1 and Q3 FETs dead so far and I guess those are responsible for the PFC circuit. The only thing I care is If there...
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