Hi guys, I'm working on a tv right now and it's baffling me, the power was blown ( vestel 17pw25-4) so I bought and fitted a new one, now it powers up, the back light comes on for a second then it shuts down again ! I swapped out the inverter for a different one and the same fault is happening, there is only the main board ( 17mb65-2) and the t-con remaining, it has an lg led lc420dun panel in it , could this be faulty ?
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Re: Isis-42-913-led3d
Yes - there are more and more threads regarding faulty/damaged/blown bulb
LED strings - seems sometimes 1 bad led and protection shuts it all down.Please upload pictures using attachment function when ask for help on the repair
http://www.badcaps.net/forum/showthread.php?t=39740 -
Re: Isis-42-913-led3d
budm has put some articles in here which might help you
https://www.badcaps.net/forum/showthread.php?t=25810Please upload pictures using attachment function when ask for help on the repair
http://www.badcaps.net/forum/showthread.php?t=39740Comment
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Re: Isis-42-913-led3d
Isn't there a way to override it or acknowledge it and carry on ?Comment
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Re: Isis-42-913-led3d
Just for future info and people searching for things that bring them to this thread, I've seen a video where someone replaced a dead LED with a determined value diode to add the load the LED would have previously provided and the rest of the string worked.
You have to get a similar physically sized diode so the string fits in the normal position for this to work, and there was no visible difference from a distance.Comment
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Re: Isis-42-913-led3d
Or perhaps you can apply the 'Reecyburger' stacking method to replace the bad LED...Comment
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Re: Isis-42-913-led3d
Similar sized diode what ? Size of pad or wattage lol ? Just stack em works good never had a return yetPlease Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !
https://www.facebook.com/Telford-Tel...7894576335359/Comment
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The model is 15ec-1061nm
Board number is DAG3EDMB8D0
SO i turn the laptop on , and as soon as it starts booting from disk, from usb, windows,linux,HBCD,anything i boot it just turns off....while in bios menu or in linux boot menu it stays on normally...It's like when it starts to use graphics it shuts down...But i measured 0.72V while working on the GPU power line,no excess heat is comming from GPU or CPU, i even removed the heatsink and turned the laptop on and everything worked fine, got a bit hot, fan span to full speed, but it worked like that for few minutes in bios...10-29-2024, 12:05 AM -
Hello esteemed members. I appreciate that my question will strike some as being somewhat childishly simple, but it genuine perplexes me! I have repaired several laptops before by removing a faulty capacitor that was short-circuiting the motherboard, whereupon the laptop would then work. For me, it begs the question that, if the current can bypass where the capcitor was when it has been removed, why didn't it just bypass it when it was present and faulty,? I can't get my head round the premise that if the other side of the capacitor is connected to ground, then why doesn't the current simply bypass... -
I have a really weird problem, this motherboard was working normally, someday it just started and all fans were running but didn't want to post, tried resetting bios, checking CPU and it was getting warm tried external gpu, flashed bios with programmer, but same problem.
Next day after several attempts the board goes into protection mode, no more staying on, I turn on the PSU fans starts directly turning, it used to not start until I press the pwr button, now it starts directly and fans spins, and shuts off after 3 seconds sometimes less, then won't start again unless I unplug the PSU and... -
Hello everybody!
Have in work A1706 820-00239 model. Originally no power, shorted PPBUS_G3H because of corroded C6403, C6404. Some water damage around this components, but nothing major.
After replacing this capacitors the laptop came back to work, I reinstalled MacOS and had no issues until I started to test Type-C ports. Sometimes the laptop shuts off immediately when some action with Type-C ports performed (charger disconnected or USB device inserted/disconnected). I checked Type-C port flexes, they are okay, but I cleaned them anyway. I can't see any signs of liquid...11-20-2024, 08:14 AM -
Hi. I have a pre-owned Dell Inspiron 15 7567. It worked fine
During the first 3 days of owning it until Dell Update software popped a notification about a latest Bios version 1.15.0 and latest Intel ME Software update of which I updated. It rebooted and firstly, Upgraded Bios from version 1.8.1 to 1.15.0 then it started upgrading Intel ME firmware. After that update, my laptop shuts down without notice (Like thermal shutdown)
I checked Thermal Paste on the processor and the Graphics Chip and it was dry. Replacing thermal paste has not helped me.
Now I've noticed that laptop...
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