Question about Samsung Televison & Video
My 40" Samsung tv has no picture. I did the flashlight test and can see a faint picture where I shine the light. Audio is fine. Just no picture. Model # UN40EH5300FXZA
SOURCE: turn on tv, no picture no sound, shined light into screen,nothing
Check your connections and scart leads, take them out and put them in again. It may be a loose lead or maybe a faulty lead, swop them over to see.
Posted on Apr 28, 2010
SOURCE: Vizio SV470XVT1A has no backlight
The 24vdc is turn on by the signal from the main logic board, it is not always on, the standby 5vdc is always on. So yes it can be the power supply board is bad, but just to besure we need to find out if it is getting the turn on signal from the main board first.
You can have 24vdc at the inverter board and it will not light up the CCFL until it gets the signal from the main logic board to turn the lamps on (this is the STANDBY condition, the TV is on but the screen in not lit up util it see the video signal).
Send me good clean and clear pictures of the power supply board, [email protected], connectors of the Power supply, bottom side of the board, then I may be able to tell you which pin is a control input pin. Most people will just throwing parts in and hope that they one of the parts will fix the problem. Used Power supply module for this TV is over $100. http://www.google.com/products?rlz=1T4GGIH_enUS282US283&q=delta+DPS-379AP&um=1&ie=UTF-8&ei=USsxTKn3J6TonQfFlJGEBA&sa=X&oi=product_result_group&ct=title&resnum=4&ved=0CCsQrQQwAw
http://www.shopjimmy.com/catalogsearch/result/?q=Vizio+SV470XVT+
Posted on Jul 05, 2010
Testimonial: "Bud helped me fix my TV! It was only 1 1/2 years old. I was looking at a repair bill close to $300 - $500 and I fixed it with a $60 board! Thanks!!!"
SOURCE: I have a Samsung ln
I have a 46" Samsung LNT4665 with the same problem. Originally had the power supply replaced but 1 day later I have this problem. Auth. repair shop says it's likely inverter, but apparently can't be replaced separately, must be replaced with panel ($700 , and labour on top) might as well buy a new TV.
Any suggestions? I have seen the inverter sold separetly on some websites, anybody try replacing that part?
Posted on Oct 24, 2010
SOURCE: I have 40 inch Samsung led tv. The power light
These blinks are error codes. From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. http://electronicshelponline.blogspot.com/
Posted on Dec 19, 2014
SOURCE: lg led tv backlight
Fault with its main 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. Surf the site with patience. 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.
Posted on Feb 05, 2015
757 views
Usually answered in minutes!
×