Question about Samsung Ln46c530f1f
When tv is switched on picture comes on ok for 5 seconds, then goes black. no lights visible through back. If tv is turned off and wait for a short period and switched on again the same thing happens.
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. 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.
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 Oct 05, 2016
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Posted on Jan 02, 2017
The two main causes that could cause this symptom are the Main bd and the P-Logic bd. Have a trained Samsung tech troubleshoot the set.
Posted on Jul 17, 2009
I have the same problem, and it will get worse. I have read and seen video on youtube, stating that it is capacitors on the power board, that need to be replaced. I watched the tutorial video it seems pretty easy, I am going to try it this weekend. Will update.
Posted on Jul 23, 2010
SOURCE: When I turn my tv
There's a good chance you have failing electrolytic capacitors either in the power section or the inverter section or both. In your case, it could be either.
Any caps in these sections that look bulged at the top, or bulged/leaking at the bottom (look for discoloration of the circuit board around the base of the capacitor) need to be replaced.
If you repeatedly turn it off and on, eventually it'll probably stay on, but every time you turn it off, the unit will get harder and harder to start up until one day it just won't.
Sometimes you have to do the opposite to start it up and unplug it for some time and then try again.
If you aren't tech savvy, don't worry, read the rest of this solution and watch the videos.
If you are handy with a soldering iron and can identify the power supply and/or inverter / FM section for the backlights, an inexpensive handful of capacitors will likely fix you right up.
Match the capacitance on the capacitors. Go over voltage if you can, and still have them fit.
IE - it's not a bad idea to replace a 10V cap with a 16V or 25V or even a 50V, but don't replace a 680uF cap with a 500uF or a 1000uF (unless you are SURE it's only doing supply output ripple filtering,
and even then, you should go OVER, not under the uF rating).
Most of the caps that go are 10V 1000uF or 3300uF.
I found some great videos of the procedure (for many Samsungs with the same issue) on youtube.
Backlight related video here:
As you can see, this issue spans plasma TVs, as well as large and small LCD TVs and monitors, amplifiers, computer power supplies and motherboards, and other electronic equipment.
The parts are cheap, and skill required is minimal.
A great parts source is Digi-Key, and you can order the parts online at www.digikey.com
They typically cost under a dollar a piece plus a flat shipping rate.
The parts usually arrive one business day later.
If you watch the third video, you will see that even someone with no soldering experience can perform these repairs as demonstrated by the woman in the video.
Posted on Jul 27, 2011
SOURCE: I have a Samsung LE40B530P7W
THis TV set does not use bulbs - It is not a rear projection TV it is a flat screen LCD TV. I know because i just took one apart. What are you talking about on here? There are three boards in it. A power Supply, a correction board and a video board
Posted on Nov 30, 2012
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