Sagem STV2140 sound that lowers by itself. Solved

Question

Hello,
Recently, my TV lowers the volume by itself: the volume slider appears and decreases on its own as if I'm pressing the remote control (and this even without batteries in the remote control). I can fight back by increasing the volume constantly from the remote control, but it quickly becomes annoying.
My TV is a Sagem STV2140 from 1997. Is there any hope, or should I invest in something new?
Thank you.
Alain

rastaquouere · Accepted Answer

I had a similar problem and I was able to fix it by unplugging the connection plug to the buttons (connection plug to the side button) .... Samsung TV L26S...

dv59 · Answer

Hello

In my opinion, either your television is ALIVE and having fun, or your NEIGHBOR has the same remote control and is the one having fun.

I laugh to myself thinking about the neighbor who turns the volume up when you turn it down and vice versa...

Well, that’s probably it.

See you!

dv59 · Answer

Hello,

It wasn't really a joke in my first post: have you really explored the neighboring area? Personally, I have remote controls that work on several TVs and sometimes the walls are thin...

Another possibility: malfunction of the remote control: does the TV lower the volume with the remote that's out of order (without batteries)?

See you!

GuismO055 · Answer

It apparently seems to be a problem with the front controller (at least on Samsung ones). I have the same thing happening, except that the volume goes up like crazy. Fortunately, my Freebox can manage the sound independently, but unfortunately for my Xbox, I can forget about it! :( Good luck anyway, especially to those in my situation who are no longer under warranty!

sweet · Answer

same problem with my Samsung TV! the sound drops and stays at 0, impossible to turn it back up Does anyone have a solution then?

Alex · Answer

I had the same problem with my SAMSUNG television, I unplugged the connections to the sound buttons on the right side of the screen, and since then it works with the remote control.

GG · Answer

Good evening,

I had the same problem on my Samsung TV (the sound stuck at 0), I just fixed it by removing the cover of my TV and disconnecting the cable that connects the buttons on the right to my TV!
It works perfectly with my remote control!!!!

Graco · Answer

Unplugging 2 small wires connected to the right side buttons fixed the problem!

Just unscrew the 5 or 6 screws on the side of the buttons, slightly open the back of the TV, and disconnect the 2 wires (white and blue on my TV) with your nail.

Thank you all!

nadia72700 · Answer

It also works on a Haier, no screws to remove because you have to take out the whole unit, but it's perfect.......thank you.

les dudus · Answer

Hello,  it worked on my Samsung LE 19  Thank you all!

cycy30 · Answer

Thank you, it works great on my 6-year-old SAMSUNG TV that had the same problem. Big shoutout to the genius who found the solution.

vallejo25 · Answer

Hello

For those who want to keep their selector.

Just locate the faulty selector switch (for me, low volume).

Disassemble it by lifting the small metal cover around it.

Carefully remove the copper contact disc.

Clean everything with 90° alcohol and a cotton swab.

Reassemble everything.

And there you have it, the TV is like new with its selector.

Voinnesson · Answer

I took a cotton swab and cleaned the cable (blue and white).

linkalexis · Answer

Hello everyone.
Quick question for everyone who has solved the issue regarding the disconnection of the wire of the buttons:

Now that I have disconnected them, how do I turn on my TV? xD It's not in standby, so the remote control is useless...

Thanks in advance ;)

linkalexis · Answer

It seems to be working...! If anyone ever comes across the topic, here’s how I solved the problem: Unplug the wires going from the speakers to the sound card (the story about the buttons on the TV has nothing to do with my case). Then, use the jack output to get sound (headphones, or better, home theater)  There you go =)

sobtek · Answer

Indeed, you need to disconnect the wiring that powers the buttons; the TV only works with the remote control.
In fact, I can even provide you with the part number; I ordered it, it costs 18 including shipping.
Control board reference BN41-00989A ordered from lavs.

oliv65 · Answer

I disconnected the blue wire and a white wire at the buttons of the television... you just need to remove the back panel and take them out of their connectors...

jonsnare59590 · Answer

same problem solved thanks to you. a big congratulations and thank you

ttheodu21 · Answer

Hi everyone, I had a sound issue with my LCL Samsung 82 cm screen bought in 2008 and I resolved it by unplugging the cable that connects to the buttons on the right side of my TV in 10 minutes by unscrewing 4 screws. Thanks to those who informed me of the procedure to follow.

kale0321 · Answer

Disconnecting the connection at the buttons is a good solution.

However, on some Samsung TVs, the wires are GRAY and WHITE instead of blue and white.

It's a small connector on the TV button side with thin wires that disconnects rather easily (after, of course, unscrewing the back panel of the TV, +/- 20 screws).

Once this small connector is disconnected, the bar containing all the buttons on the TV becomes independent and you can either remove it to change it or leave it as is, and you just have to use the remote to turn it on, the sound

etc, and IT WORKS!

Thanks to the community and the DIY enthusiasts on the net!

TeleReparer57 · Answer

Samsung LCD TV same problem, I removed the back cover, disconnected the keyboard connector and it works perfectly, better than with the remote control, thank you for the solution.

tai · Answer

Great, very good tip, it's working perfectly again.

Lea · Answer

Thank you!!! I thought I was going crazy with the sound turning down by itself! I unscrewed the back part a bit, blew on the connector, and miracle, it's working!!

gael54 · Answer

Hello everyone, so I had the same problem; I opened my Samsung TV and cleaned the switch (button), completely disassembled it, and took the opportunity to remove all dust and dirt, then reassembled everything and it works really well.

Nasser. · Answer

I cut the 3 wires (2 white and 1 blue) on Samsung and it's sorted, the remote control works well. Thank you for your advice.

Romain · Answer

Hello.
I have the same problem; the sound lowers by itself. The issue comes from the touch buttons at the bottom right of the screen.
I therefore tested unplugging the connector that links this component to the rest of the TV. The problem is that the infrared sensor is integrated into this component, so I can't do anything with my TV because the remote control no longer works.
Some people talk about white and black wires... For my part, there are 8 small wires, the colors of which are as follows: black, brown, red, orange, yellow, green, blue, purple. The solution would be to unplug the small wires for the touch buttons and only leave connected the wire(s) that allow the infrared sensor to function.

My question is, what color wires should I leave connected for the infrared to still work??

moi · Answer

Simply thank you

Sagem STV2140 sound that lowers by itself.

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