Question about Thomson Televison & Video
Thomson ifc130 chassis stuck in standby green led on, no sound, no picture, 12 volts ok 24 volts ok and standby 5 volts ok, no burning visable
no support in spanish wilderness much appreciate help.......have schematics
The power supply is failing, or there is another circuit area that is pulling too much current, and the supply is going in to protect mode.
This would require proper troubleshooting by an experienced tech. If the problem is very involved, or the tech is not familiar with the set, he will require the service manuals and service information.
Posted on Apr 27, 2008
Hello! My name is Ivica,and I am from Croatia.I have same LCD which have problem with motherboard.Try to disconect power supply from inverters and then measure all volt line.Maybe failure is on inverters board!Write me if you solve the problem,and maybe you know where can I find new motherboard for my LCD.Thanks.
Posted on Jan 24, 2009
Does the LED kick on when you push the power button or when you apply power? Typically, the 5volts will run the microprocessor and that looks for a command (power button). When it sees a command, it will send a signal to the power supply to kick that on.. so at this point, you want to look for that signal. If you push power and no power on (p_on) signal goes to the supply, its likely your main board.. but if it does, and the supply doesn't react, then maybe its the power supply. I am not totally familiar with this tv, but thats how all of them really work. Even if the caps look good, some could be bad.. look for brands like "capXon, sanXon" are typically the defective ones, theres another but its slipping my mind.. usually 1000uf @ 16v are bad, or 2200uf @ 10v are also common.. you can search the value and the little code, usually like C9M or something and see if that batch has known issues..
let me know what you find, or how I can help
Posted on Jun 15, 2010
I am working on the same power supply right now, my has a bunch of bad caps that I already replaced but I did not try to turn it on yet becuase I see that RS1 and RS8 are missing, some one had try to fix this power supply. Can you please tell me the value of these two resistors? Please see my pictures at http://s807.photobucket.com/home/budm/allalbums
Your problem sound like the logic board problem, I can tell you what you should have if I can find out if these two resistors were left out from the factory or some had removed them. I fixed the same power supply for the N2652 but I did not take the pictures of the board, I wish I did.
Posted on Jun 27, 2010
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