Question about Samsung LN-T4665F 46 in. LCD Television

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The tv dosnt come on, red and green lights blink but never no picture

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Unplug it for about an hour to let it reset itselff, if you still have problem, then you need to go further do some in-depth troubleshooting, you may want to read my guid to understand how LCD flat panel TV works so you can decide if you will want do DIY repair.
Right now the 5vdc standby power supply is working but not the rest, this can be due to short circuits in the power supply or backlight inverter board, these are two mot common failure parts in the TV.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

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http://en.wikipedia.org/wiki/Capacitor_plague

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Posted on Aug 03, 2010

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Posted on Jan 02, 2017

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dsacco86
  • 1077 Answers

SOURCE: red light blinking, tv doesn't start

Your TV is in Protection Mode right now. A part inside the TV has failed and the TV will not turn ON to prevent other parts from being damaged. The red light blinking is an error code for diagnosing the problem part on the one of the power supply boards. The problem boards that need to be looked at is the Backlight Inverter Board or the Main Power Supply Board.
There is a slim chance you can leave the TV unplugged for an hour so the TV can discharge and reset itself. But other than that, I would use the warranty if possible. The TV repair shop maybe expensive, so get some price quotes to see if it worth the trouble.

Posted on Sep 09, 2009

dsacco86
  • 1077 Answers

SOURCE: TV won't come on - get a blinking red light instead

Most likely the TV has a power supply related problem. The most common thing to go out is the circuit board that supply power to the screen. Commonly called a Backlight Inverter Board.
I can't say it's 100% the problem because I can't actually look at the tv over the internet.
If by chance the TV is still under warranty, go that route.
If not under warranty and If you have some electronic experience, you can purchase a Service Manual over the internet and diagnose the source of the problem and fix it by soldering in the new part. The Service Manual will give you the flashing red light codes, circuit diagrams, test points, and part# lists. Usually, cost under $20.

I hope I shed some light on the subject for you.

Posted on Jul 01, 2009

  • 92 Answers

SOURCE: green light turns red and red light blinks 4 times

Replace the Main Power Supply inside the TV.

Posted on Sep 07, 2009

  • 16 Answers

SOURCE: Picture & sound suddenly shut off. power light blinks red 5X...5X

http://www.sonya20tvclassaction.com/main/home.sfx MAKE SONY FIX IT

Posted on Dec 03, 2009

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