Question about Samsung LN46B750 46 in. HDTV LCD TV

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LN46B750 TV continuously powers on & off - removed batteries from remote & still does it.

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Why does TV turn off with the remote but won't stay off?


Greetings Charlotte,

All of the following assumes you are using the TV manufacturer provided remote ...
(ELSE: Get THAT remote, verify trouble & re-post fixya issue)

A few seconds is a really odd symptom (that's an IMMEDIATE cycle (2 power KEY HITS)... so before you rip into the electronic eye (Remote Recvr: tiny board at the control edge of your TV)... and/or change out the main power board...

(think... EVERYTHING else works remotely).

Try:
- unplug your set for at least ten minutes
- close the drapes (block sunlight from TV)
- find the receiver eye & remove ALL close obstructions
- check the remote & remove ALL covers/tape or soil.
- fresh batteries in the remote
- press power button as quickly as possible


Considering (I'm thinking)...

After MY studying HUMAN - MACHINE interface in a lifetime of trouble shooting... I came to know that when people become
VEXED by electronics... they tend to MASH buttons much-more deliberately (this can be a PROBLEM all by itself).

Critical timing on a button press used to be 500 to 900 milliseconds...

Meaning a longer press... went into special "handling" by program code (early software iteration (trial & errors).
((registered multiple KEY HITS = slower response, etc etc))

Your Remote Receiver is designed to register a continuous press (ON THE REMOTE) as ONE KEY HIT regardless of the DURATION... however

Any soil on the set (receiver) or remote (transmitter)...
visual objects, vases, mirrors... even sun-light can significantly change operation... as can TIRED BATTERIES (in the remote).

Failing all the cheap & easy suggestions above comment me back (+make & model) and I'll point you to procedures to get into your TV.

Hope this helps

TV Parts Universal TV Stands DLP Chips ShopJimmy

Jan 28, 2016 | Bush Televison & Video

1 Answer

Tv won't turn on


Who was the power board replaced by? If it wasn't done by a professional then you might need to make sure that all the harnesses going to the board are plugged back in. If you don't know what you're doing, take it back to the person who replaced the board for you and ask them to, if it still won't power on check the fuse on the input power board.

May 03, 2014 | Samsung Ln46b750 46-inch 1080p 240 Hz Lcd...

1 Answer

Volume moving on it's own


Either the key/button the TV or Remote is stuck. Just remove the batteries of the remote and try. If same thing continues, do vacuum cleaning of the panel button/switch after switching of the TV, removing the plug from the power outlet. If the problem persists, this might require attention by a qualified service technician.

Jul 11, 2012 | Sanyo Televison & Video

2 Answers

Need instructions and codes to program LM-1075 universal remote to Sony TV


First turn on device to be programmed. Press what device you want to program (tv) hold it down and at the same time hold power button down. Wait for red light to shut off and come back on. When light comes on remove finger device button and continue to hit power button on & off until device shuts off. Then hit stop button on the bottom off remote.

Jul 05, 2012 | Televison & Video

1 Answer

The remote (bn59-00851A) for my samsung LN46B750 suddenly stopped working with the TV. Batteries are fine. Backlight on remote works without problems. It acts as if it isn't meant for the TV. It was...


Check the remote control for its infrared emission. Check it with fresh batteries. Check it by pressing all the keys. You can detect the presence of infra-red emission from the remote control, using a cell-phone camera. If you wish to get more details about how to check a remote control, please visit this site. One among the posts has details about it. In some cases, the remote control might need to clean.
http://electronicshelponline.blogspot.com/
http://remotesearch.blogspot.com/
Search the site by type in this key phrase "how to test a remote control "in the "search box at the top right of the display window of the Homepage" to get the related post quickly.
https://youtu.be/wUpnETSm6_k
https://www.youtube.com/watch?v=jsSCNCW3IbQ [open and clean]
https://www.youtube.com/watch?v=Qp-l1uh-5gE [open and clean]
If the infrared signal from the remote control is fine, the fault should be at the infrared sensor circuit, inside the TV.


Jul 17, 2017 | Samsung LN46B750 46 in. HDTV LCD TV

1 Answer

While setting up the Crest Universal remote control RCP1F for my sharp TV, I've managed to turn the TV off, but now I can't turn it back on. The TV remains on Standby and turning off the power doesn't do...


OKAY TRY THIS..
DO STEPS 1-3 AGAIN AND ONCE IT TURNS OFF KEEP CLICKING THE CURSOR UP A COUPLE TIMES.
THEN START CLICKING THE CURSOR DOWN SLOWLY TELL THE TV TURNS BACK ON AND ONCE IT CLICKS BACK ON HIT THE TV BUTTON ON THE TOP OF THE REMOTE ..
IF THE LIGHT BLINKS TWO OR THREE TIMES MORE THEN LIKELY YOU'VE PROGRAMED IT =)
AND NOW KICK BACK RELAX AND ENJOY A COLD BEER FOR THE BOTH OF US =)

Nov 18, 2010 | Televison & Video

1 Answer

Tv was on for an hour or 2 and suddenly the volume level spiked all the way up and down & continued cascading up & down. Remote control did not respond to anything. had to pull plug to stop it....


Dear Sir , do you have any electronics skills? If yes check for bad connection which must be redone by soldering. carefully open the bad of your TV( the tv must be unplugged), remove the main board and check for the bad connection.

Jan 24, 2010 | Sony FD Trinitron WEGA KV-32FS120 32" TV

1 Answer

Remote stuck--can't change channel or turn off TV


Pull out the power plug of your TV and don't use it for few minutes. Remove batteries from your remote and keep it without batteries for few minutes. After about 15 minutes your TV and remove both will work fine.

Jun 15, 2009 | Logitech Webcam

1 Answer

We own a Sunsung Home Theatre HTWP38. The remote


Remove the batteries and hold down the POWER button on it for 30 seconds. Then replace the batteries with fresh ones.

Hope this helps!

Jun 07, 2009 | Samsung HT-WP38 Home Theater System System

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