I have replaced Y, X, also buffers except E,F. I also have replaced logic board, all this boards are samsung. Still have the same problem with video. Have done various voltage test and the measure good. Any help would be appreciated. Thanks in advanced. As you can tell I'm a new in posting. so thanks again for this great forum.
RCA 42pa30rq help
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by gattoHi, I’m new to the forum and this is my first post, so thank you in advance to having me, I have the fallowing problem, could someone please help
I have this LG 50PC56 which not display image on screen
I have already change Y-SUS and buffers 2 times! But this TV keep burning my buffers boards!
When I do install the new Buffers board I been able to see only the top half part of the screen for about 10 min, and then it blow up again! The IC get very hot and I saw some smoke come out from it, so now I have another set of buffers burn out
My question it is: I disconnect... -
by xreyModerator: I hope I'm not breaking forum rules or decorum by posting my original question a different way (my previous thread focused on the low vscan readings - but I'm thinking maybe that's not as relevant and won't get me as far as diagnosing as the fact that I now have no picture or sound.)
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We all of the sudden started getting a washed out picture and rainbow colored static/snow.
Based on research when we got a low vscan reading we decided to replace the y board and y buffers.
Now I get no picture or sound - TV turns on...10-21-2020, 01:27 PM -
by MicroSMD LabHi, I'm working on a MSI laptop, Motherboard number MS-16W11, GF-65 Thin 10SDR-459US. Went to another shop because the screen was flickering, but it was working well on an external monitor. The LCD was ordered and the laptop was returned to the customer and it no longer worked. It was then sent to another tech (by the shop who ordered the LCD) and the EC (ENE KB9028Q) was replaced with a donor from another MSI board with different board number and no programming was done. It looks like work was done on PU6 (TPS51225) as well as one of the GPU mosfets was burnt (I removed all three GPU mosfets)....
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by thesameI have a dead FX505D, motherboard FX505DD REV 2.0 , the owner replaced the cmos using a screwdriver and he touched something on the board, since then the laptop its not starting, i have managed to see that U8800 (BQ24780SRUYR) charging IC is getting hot under a thermal camera , i have desoldered it but the laptop still doesn't power on, i also have no voltage at power connector on the board. I also replaced the U8800 but still no power. What should i check next?04-22-2024, 01:21 AM
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by zlr8rHey guys, bit stumped with this laptop after replacing 2 blown components i.e., MP86493, MP2979A.
To begin with, this laptop was dead-dead.
Now with replaced (visibly) blown components, i do get some progress; after connecting battery or main cable;- am getting white power led
- 5-long-flashes on CAPS Lock and NUM lock
- then, fan full speed
- CPU heats up some (smaller die PCH, does not)
- always constant black screen no matter what's tried
- no USB recognition
- no HDMI output
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