Question about Toshiba 50HX70 50" Rear Projection Television

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Mine has a sound problem. when i turn it on the sound is just set at a very low level.but after some time it abrumptly comes highy. i was suspecting dry joints but still the problem exists.i also tried to change the speaker but that doesnt solve the problem. i will appreciate if this problem will be sorted out. thanks , ,

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Re: Mine has a sound problem. when i turn it on the sound...

Some toshibas use an mtx module if yours is one of these take the cover off there will be a little board inside it will look dark that is your sound ic if yours is like this that should fix it

Posted on Oct 16, 2007

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Samsung DLP has no sound for about 8 minutes when first turned on.

Mine does the same thing. It makes a regular popping sound that does not change in level with the volume control. When the popping starts getting erratic the pixelated sound starts and in a short time the sound straightens out for the rest of the viewing time. However, the next time the cycle repeats itself. Did you find a fix?

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I have a volume problem. When I adjust the volume at a listening level, a high pitch sound can be heard then the volume turns low and goes back to the set level. It happens in every channel (Direct TV)....

No ,replacing speakers will not fix the problem these sets are very well know for Poor Solder and connection ,resolder signal,Audio,& power supply boards this should correct the problem and alot of future ones too.

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Very low sound

If you are using a cable box, the problem may be in the audio settings menu of the box. Check to make sure that the audio levels are set to maximum and save the changes.

Often these get changed accidentally.

May 03, 2009 | Projection Televisions

1 Answer

Poor sound cqality on a Samsung DLP TV

If you are receving your HD via a cablebox, check the volume and audio settings in the box's menu. Some boxes have internal volume controls. If the level coming out of the box is below a certain level, you may experience low or poor sound quality. You can also check the audio settings to assure that they are set to the original settings.


Feb 19, 2009 | Projection Televisions

1 Answer

No sound, only bass coming through

There is a possibility of a defective integrated circuit on the SRS/WOW board. But as a work around you can connect the set to an external amplifier. You are correct in that there is not a place to directly connect the speakers, but there are line level audio output jacks on the back of the set which can be fed to an amp. The problem may still be present; I honestly don't remember if the external audio is before or after the SRS board. Good luck.

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1 Answer

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those are the screen adjustment controls, most likely they are turned down to low so the tubes wont power up. What happens is when you adjust them the set will continue to operate then when its turned off say overnight the tubes wont come on cause they are set to low, Try turning each of the 3 dials up just a little at a time equally untill the tubes turn on.

Feb 01, 2009 | Projection Televisions

1 Answer

I have a Sony Grand Wega 61" that is only 2 years old and the screen goes black for a couple of minutes and comes back on. It's not losing sound, just the picture. It was only happening about once an hour...

It could be but it may be cycling due to heat; if you turn the sound completely down and listen at the rear of the set, you should hear the murmur of a fan. I would listen when video is there and when it isn't to sense if there is any difference in low-level noise coming from within.  
If you don't hear a fan, it may be either burdened with a dust buildup or failed. Any set that uses high-temperature light sources will be protected against fire or internal damage by a thermostat of some nature that will trip and reset by itself. 

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1 Answer

Samsung 7178 buzz noise

Is this buzz from the speakers?
Is this buzz from the set itself when the sound is turned down?
Is this buzz a low pitch sound?
Is this buzz a high pich sound?
Does this buzz vary in loudness with the volume control?
Does this buzz change in level from time to time?

You should post the details and the circumstances of use in order to give some idea of the conditions.

Jerry G.

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1 Answer

Hitachi 46ux11kf/ keeps shutting off

Convergence amp maybe out. These are the big STK's on the video board that stands by a heatsink. THis set is bad for going out. You also can tell by checking L.E.D lights in back of set do they all come on or do some come on and go off?

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