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Samsung LN40B610ASFXZA no sound or picture

Led light is on....goes off on power up...initial sound plays, short light up of screen then nothing...at power down sound plays and then led comes back on

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Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
Before going further; try a hard reset first. If it does not help you, replace the main digital board. There are two methods to reset TVs. The first is simple to do; a Hard Reset. The other is somewhat skilled; is a Factory Reset (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight is better. This procedure will make it a hard reset. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option. If you wish to get some details; visit the site linked here.

Posted on Dec 25, 2016

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Samsung LED no picture but have sound. Is this the T-con board?


first shine a light on the screen and see if you can see the picture if you can its the led board failed. this can be a bad led in the back of the screen or the power board for the leds. it can take a few angels to see the screen but if you can shine light in the back or at and angle on the screen you will find out the problem.

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Led light is on....goes off on power up...initial sound plays, short light up of screen then nothing...at power down sound plays and then led comes back on


Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis. http://electro-medical.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

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I have a 50" Samsung tv. The tv turns on and the screen comes on, then within 1 minute the screen goes black. I can still hear sound.


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Samsung 50" led un50h6350. The TV is about 18 months old and the picture went out, the audio and back light are working. I've replaced the t-con board and that didn't fix it. Someone please help!


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Dark Screen, unreadable. Power Led Lights. No noticle sounds.


If you are going to DIY repair, please read below and look at the pictures of failed SAMSUNG monitors (bad caps with bulging tops)
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.
http://en.wikipedia.org/wiki/Capacitor_plague

http://www.badcaps.net

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