I recived this lcd and the color was messed up so I ordered a new chip that was on ebay for this tcon well I tried to solder it and messed it up, then I ordered another tcon and whole screen is white now. wondering is it possible I could of damaged the panel? then I put the other tcon back in and I seen alittle color but was white also, but seen some color but the tcon I got off ebay no color
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Re: samsung 40 in lcd can i ruin panel???
There is the chance, but it is unlikely.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search. -
Re: samsung 40 in lcd can i ruin panel???
probably a duff board you have been sold..notably the as15f ic..if this gets hot rather quickly,then there's the fault.Comment
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Re: samsung 40 in lcd can i ruin panel???
with the new tcon in have you tested the gamma voltages are they good or bad?Comment
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Re: samsung 40 in lcd can i ruin panel???
i dont know how to test them could you guide me with this please? would help for future reference i have been learning alot lately, and would like to know how to do this because i been been running into errors miss diagnosing tvs because of this, thanksComment
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Re: samsung 40 in lcd can i ruin panel???
There are guides all over this forum - you just need to locate the gamma points (VG#, GAMA#, etc.) and test them. Report the readings you get.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: samsung 40 in lcd can i ruin panel???
tom I see vgma1-vgma22 I need to test all these? and how can I find out on my own for future reference on the readings? I will I know if there good or not? basically im asking what all do I need to know how to test a tcon?Comment
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Re: samsung 40 in lcd can i ruin panel???
Example:
https://www.badcaps.net/forum/showth...gamma+voltages
https://www.badcaps.net/forum/showth...ht=LN40B530P7NLast edited by budm; 07-21-2015, 10:20 AM.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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Re: samsung 40 in lcd can i ruin panel???
Basic principle with gamma voltage curves is "monotonicity". The voltages should go either up or down, but not both. i.e. not up, down then up again, that is a fail. Almost all bad ICs fail this test.
They also should range from 0 to about 15V, sometimes a little lower or higher, but no lower than 14V or higher than 18V. Some bad ICs will get have half the voltages low, other half good. That means the IC is bad and needs to be replaced.
More complicated test is symmetry. The voltages should mirror themselves around the centre point of half the highest voltage. i.e. if the highest voltage is 15V, then you should be able to draw a virtual mirror around 7.5V and the voltages will be in the same "curve". Excel helps here!Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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This specification for the Samsung Galaxy Book 2 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 Galaxy Book 2 boardview and Galaxy Book 2 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...09-07-2024, 05:50 AM
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Just bought this for 10 bucks yesterday hoping to fix it. The guy said water dropped inside from a dehumidifier hose and it started showing black and white vertical bars then went blank. When I got it home and turned it on it came on fine and displayed correctly but I was noticing faint vertical bars in the image. After a little bit I turned it off and back on and it was a black screen again. I opened it up to check for water damage and corrosion but didn't find anything of the sort. I cleaned the ribbons anyway and reconnected them but still got a blank screen. If I disconnect the right side... -
Well, I will be the first to admit that I screwed up...
In attempting to replace the backlight in a UN65TU8000, I made a hole through one of the ribbon cables between the board that runs along the bottom of the back of the TV and the panel. This lead to a between a 1/4 to 1/2 inch vertical stripe running the full height of the image.
I don't have the experience; personally, to solder a bridging wire for the paths that were cut. So, I have been on the hunt for other Samsung TV's of similar size.
I have 2 that I have found and have in my possession. ... -
I came across a 50inch TU8000 that wouldnt start up properly (blinking stand-by light, backlights would cycle on and off).
When i opened it up and removed the power to the mainboard the backlights powered up and everything looked uniform.
When reconnected the mainboard but disconnected the flex cable to the panel i heard the TV startup with the intro sound.
Later I checked for shorts on the panel PCB boards but could not find anything.
When I took a look with the FLIR i noticed the 2 resistors... -
My goal here is to be able to use boards on hand to swap into faulty sets when the faulty board is not obvious.
I will start by asking what is the format of the output from the mainboard and is it generic in any way or does it vary by manufacturer and/or model ?
And as far as I know a tcon and panel must be a matching pair because the timing of the signals and the voltages required to drive the panel are specific to the panel itself. (That may be a blanket statement that isn't true in some cases where the panel creates its own sub-voltages on its panel boards?)...01-06-2024, 01:32 PM
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