Have TV Questions? Ask a TV Technician
Hi , I`m Jack , I will be helping you today
What type of "issues" do you have ?
i mean that either it turns on or not ?
Did it quit while watching it or simply would not come on today ?
Do you recall if this happened after a power blackout or perhaps lightning storm etc. ?
O.k then this could be a number of possibilities going from the main board then power board and finally one of the sustain boards although I would definitely look at the main board as the first suspect and especially after what you said about the HDMI input failing
Those last of Samsung plasma had main board problems and to boot that no support whatsoever from Samsung while the warranty was over.
Did you have in mind to look into this yourself ?
Not much metering to do here , I mean no service manual , no data , no help from Samsung and practically no parts although I`m fairly sure the main board could be found if tyou`re willing to give it a try .
Sorry but there is no troubleshooting and transistors to replace here , this is a Samsung plasma , you replace boards when you can find them
Good luck then , I`m going to opt out and perhaps someone here has better info for you
Saw you open another post and I`d like to comment on that .
For one we are not allowed to reply to duplicates which your other post is and then I have to be the most experienced tech. here with over 40 years in the trade and finally , Tim has been gone for some 3 years now.
Its not that I don't know how this works , it is just that there is NO DATA available to assist you and your meter .
I`m telling you tat yo have a defective main board and you can take that to the bank .
Or scrap that tv or better yet have a local tech. go over it
My name is***** am a different tech
I would like to go over one or two things you have said
Well, can't we isolate the issue? I'm not trying to buy boards willy nilly.
What you need to understand with flat panel TV is their is very little component level repairs carried out except for one or two on the power-board in 95% of cases its a board replacement exercise the reason for that is the boards do not lend themselves to component level repair unless you have a high grade workshop with $$$$ test equipment including surface wave soldering and oscilloscopes, point two on this is the boards are in the main cheap to buy point to note is they are NOT new boards but pulled from scrap sets.
That being said yes sometimes it is a board swapping exercise to eliminate the issue because unlike the CRT era were you followed a fault path that is NOT the case with flat panel TV you take a "guess" sometimes as to what the board you need to replace is bad but its an "experienced" guess and yes you can come unstuck this is even the same policy at workshop level.
The problem again that does not help with samsungs is there is no blink code procedure to help so outside of taking Vs and Va voltages which I assume may come up and die or even be up it looks like the set is not booting (main-board) however there could be a short so let me know those voltages you took first, please understand though we may be taking an experienced guess at what board to replace, if you still want to stick with your component level idea well I cant help you I doubt anyone can........have a think