Ga door naar hoofdinhoud

Distorted sound initially with Samsung LN-R 408 LCD TV

I have a Samsung LN-R 408 DX/XAA - LCD TV built in 2005. I had the dreaded “clicking” every 30 seconds, with no picture or sound. I had a new thermister soldered in and that worked for about a month. I finally got a new power supply board unit (BN97-00457E) off Ebay from ElectroParts about a year and a half ago. A month ago, when I turned the TV on, it would have this really loud distortion screeching of the sound of whatever channel was on. I could hit the side of the TV to fix it. Or, wait a few minutes, when it would get even louder for a minute, then fix itself. Now it takes longer and longer to fix itself. And hitting the TV doesn’t always work. Once it fixes itself, it’s fine, until I turn on the TV the next time. I disassembled the TV looking for a loose speaker wire, but couldn’t find any problems. ElectroParts says I probably need to get a new power supply board but that doesn’t sound like a problem that is fixed by hitting the side of the TV. Does anyone have any experience with something like this? Thank you.

Block Image

Block Image

Block Image

Beantwoord! Bekijk het antwoord Dit probleem heb ik ook

Is dit een goede vraag?

Score 0
Voeg een opmerking toe

1 Antwoord

Gekozen oplossing

@dbk

could be a power board issue but try a different output first. see if you can connect a sound boar or even headphones and listen. If that fixes it it’s your speaker.If it doesn't. I’ll be looking at a new main board first since that is where the audio IC is which could possibly be that cause for this.

Was dit antwoord nuttig?

Score 2

15 opmerkingen:

can you let me know how I would try a different output? I don’t have a sound board or headphones.

Thank you.

door

@dbk any other speaker available you could use?

door

Where would I plug it in?

door

Hi @dbk ,

If you have an audio receiver you can connect the TV to it from the TV's audio out jack or digital audio output if your receiver accepts digital audio.

Here's a link to the user guide showing the audio outputs (#3 & #9) You may have to adjust the sound settings if opting for the digital connection.

There'also a headphone socket but you state that you don't have headphones. Do you have earphones for use with a mobile phone?

Usually the headphone socket on a TV is the same as the earphone socket in a mobile phone so if you have a pair, try them and listen if it works OK.

door

Thanks for the help, I need to make this TV last a couple / few months longer. I plugged in a set of earbuds to the port on the back of the TV, and it acted the same: loud distorted volume, lasting a few minutes, after which I could hit the top of the TV hard and that would “fix” it.

What is “audio IC “?

door

10 commentaren meer tonen

Voeg een opmerking toe

Voeg je antwoord toe

Dana Kaplan zal eeuwig dankbaar zijn.
Weergavestatistieken:

Afgelopen 24 uren: 1

Afgelopen 7 dagen: 1

Afgelopen 30 dagen: 1

Altijd: 1,574