Question about Samsung LN-T4665F 46 in. LCD Television
My Samsung 46" LCD has been occasionally showing red and pink dots randomly spread across the screen. When turning the TV off and then back on the problem is eliminated. The TV also has been having trouble powering on. Just a blank screen even though the blue indicator on the bottom is on. It takes 20-30 seconds to finally power on at times.
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Posted on Jan 02, 2017
COUPLE THINGS: MAIN MODULE OR DISPLAY INTERFACE BOARD. YOU HAVE TO DETERMINE: IS THAT HEAT RELATED ISSUE.MEANS, WHEN IT ACTS UP, WAS SET JUST TURNED ON OR WORKED FOR A WHILE? ALSO, TRY NOT TO PLAY WITH POWER BUTTON. MUST POKE SET OPEN, FIRST AND RUN TV WITHOUT BACK OPEN.IF IT, STILL DOES IT, MIGHT NEED TO DO SOME EXPERIMENTATION: USE HAIR DRYER AND HEAT UP MAIN BOARD, WITH TUNER AND OTHER THINGS ON IT. SEE, IF THAT WILL CHANGE THE BEHAVIOR. ALSO, DON'T FORGET TO LOOK AT THE POWER SUPPLY BOARD, FOR BLOTATED CAPACITORS. SEE THE ONE(S), IMMEDIATELY REPLACE! NEXT, DO THE SAME TO DISPLAY CONTROLLER.LOCATED RIGHT ON DISPLAY, BURIED INSIDE OF METAL SHIELD.
LET ME KNOW, HOW IT GOES.
ALEX'S TV SERVICE,
Posted on Jan 25, 2010
SOURCE: Samsung 46" pink dots
I had a problem with the TV going on and off several times before "warming up" and then having pink dots. I would have to reboot to get rid of the dots. I called 1-800-SAMSUNG and reported that I had problems with the capacitors. That is what was causing the problems - cheap capacitors and Samsung is aware that this has caused many TV's to malfunction. My set was not under warranty but Samsung sent a technician across two state lines to fix my TV. As long as the problem is the capacitors Samsung will cover this service call 100%. My TV is fine now. BTW - capacitors which are sold in Radio Shack are not expensive. Why Samsung chose to put the cheapest Korean capacitors in their expensive TVs is a mystery.
So if your TV need warming up and has pink dots on the screen - call 1-800 -SAMSUNG and tell them your capacitors are malfunctioning.
Posted on Jul 09, 2011
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