Question about Thomson Televison & Video
If I change the source (from TV to DVD) then picture appears for about a second but then goes blank. Sound comes through all the time.
If you can see if the screen lights from behind when the picture apears for a second then the problem is probably the invertor or worse the screen
Posted on Sep 24, 2013
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Posted on Jan 02, 2017
Sounds like the digital control board, 6871qch038a Lg Digital Control Module subs to 6871qch038c. But that's just a first something I would check in this unit. Replace also capacitor C19, 630V big blue square cap very common failure for no video. You might want to shop this one thee are a host of problems with this unit that would certainly get some needed attention if a qualified tech were testing it and looked up the bulletins.
William Rayburn, CET
Posted on Oct 05, 2009
I had one that had a black screen and fixed the problem by repairing the inverter. When I opened the unit I looked at the capacitors on the inverter board and found them swollen. I looked at the bottom of the board and found that the fuse had opened up. The caps were a cheap quality low temp variety 150uF at 25V I replaced them with 330uF 25 volt 105C caps. I then replaced the 2.5A surface mount fuse with an axial 2.5A pico fuse and the TV worked beautifully.
Posted on Jan 08, 2010
SOURCE: Sound but no picture
no bulbs to replace here, i might have better news for you. Toshibas with this time frame has an inverter problem. turn tv on tilt back wards at 45degree angle and flack a light to the screen and look closely if you can see the image the replace the inverter units. to help you see hit menu on remote, the menu is white so will make it more visible. If you did want to replace the inverters they are like 60-80 $ for hte pair and simple to replace.
Posted on Apr 27, 2010
Ur tv the LCD inverter board it dead.The LCD inverter is the board that help the LCD screen panel to get a backlight to produce a picture,the LCD inverter board is dead and it not working anymore that why u only get 8 sec.of the picture.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish LCD inverter board for the replacement.It a long board in shape.
Posted on May 23, 2010
You may have bad 24vdc power supply or bad back light inverter boards.
If you are going to DIY and have proper tools and know safety precaution then please read on:
Please see my basic troubleshooting guide here:
Posted on Jun 30, 2010
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