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Toshiba 46" Regza sound problem

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Old 01-21-2010, 04:55 PM   #1
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Default Toshiba 46" Regza sound problem

I bought the subject item 46XV645U Toshiba at Best Buy's day after Christmas sale and exchanged it Monday for another one which after two days is doing the same thing. After running a couple of hours the sound has a buzzing effect like some sort of electronic fuzzy tone, noticeable mostly during dialog. If I shut the TV off and turn it back on it's normal again. Only thing connected is Dish Network box via HDMI cable. I can shut off the dish box and turn it back on but the buzzing sound is still there. That's why I exchanged the Toshiba with a a new, identical one. I couldn't get two bad TVs in a row could I?

What is calibrating? Is that my problem?
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Old 01-21-2010, 04:59 PM   #2
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I bought the subject item 46XV645U Toshiba at Best Buy's day after Christmas sale and exchanged it Monday for another one which after two days is doing the same thing. After running a couple of hours the sound has a buzzing effect like some sort of electronic fuzzy tone, noticeable mostly during dialog. If I shut the TV off and turn it back on it's normal again. Only thing connected is Dish Network box via HDMI cable. I can shut off the dish box and turn it back on but the buzzing sound is still there. That's why I exchanged the Toshiba with a a new, identical one. I couldn't get two bad TVs in a row could I?

What is calibrating? Is that my problem?

You must be getting some sort of electrical interferance. If you can plug the tv in another outlet and see if it goes away. This may sound crazy but when I have my outside light on at my house I get a buzzing on my TOSHIBA downstairs and when I turn the light off it goes away!! I do have a CFL bulb in that outside light fixture!! Two bad panels I doubt it!! If you have a cool neighbor see if they will let you plug the tv in at there house!! If the buzzing goes away you will have fixed your prob!!
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Old 01-21-2010, 05:12 PM   #3
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Make sure you have both devices plugged into the same outlet and use a surge protector for both. It could be what is called a ground loop issue where all power outlets are not connected to the outlet properly and the polarity is wrong on one or more outlets.

It could also be interference from another device that is coming on and causing it as well. Something like the refrigerator etc starting up to maintain the temp inside it. The fact that it happens after being on for a while leads me to think it is interference from another device in the house. Make sure the surge protector you get some kind of signal noise filter to possibly help with this. Something like this:

http://www.google.com/products/catal...wAg#ps-sellers

It could also be the grounding for the sat connection is not proper which could be a bigger safety issue than just buzzing. You may want to get that checked out also.

Hope this helps!
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Old 01-21-2010, 05:16 PM   #4
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Thanks for the response. I'll try your suggestion but the tv, both of them, work perfectly until after a couple of hours then it just starts. The buzzing only occurs when the speakers are actually producing sound. It's like the voices are filtering through one of those voice fuzz boxes like Peter Frampton used on "Do you feel like we do". Then if I shut it off then switch back on it's fine until next time.
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Old 01-21-2010, 05:24 PM   #5
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That sounds like a defective component and if you got both at the same place it could be a bad mfg batch is the cause.

How high do you have the sound set on the TV? is it more than about half the volume meter? If so you could be blowing the speakers by having it set too high.

Thee flat panel displays have lousy speakers bacause they are so thin by popularity that they cannot put decent speakers in them. That is why I never use TV speakers now. I use my surround sound all the time.
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Old 01-21-2010, 05:47 PM   #6
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Yes, thanks, both the Dish box and Toshiba are plugged into a surge protector power strip. The buzzing isn't sync'd with anything like the fridge, etc. I would notice that. Volume is usually 18 - 25 of 100, or 25%, nowhere near loud enough to blow the speakers out.

Anybody out there having similar issues?

And what is calibration?
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Old 01-22-2010, 06:30 AM   #7
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I would suggest that you connect the Dish box to your TV using component for video (red, green, blue) and digital or analog (red, white cables) for audio. If this resolves your problem, great, leave it connected this way as it will deliver just as good of a picture as HDMI does. Dish has had many HDMI problems with their equipment so this may be a solution.
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Old 01-22-2010, 07:29 AM   #8
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Default fuzzy sound

I am having the same problem with my new 46" toshiba. It also intermitently will have a tinny, compressed sound out of the blue. I turn it off then back on which will fix the prob. I have tried unplugging other assessories when it happens, sound system, dvd with no luck. I did have the tv hooked up the first night in a different room, and did not have any probs. It is on a surge protector but may try a different one. Thank goodness for 4 year bestbuy warranty if it doesnt fix the prob!
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Old 01-24-2010, 01:36 AM   #9
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Do you guys get this on multiple channels?

I get this once every 20 mins or so for a brief second, but only on NBC shows.
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Old 01-24-2010, 07:24 AM   #10
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Do you guys get this on multiple channels?

I get this once every 20 mins or so for a brief second, but only on NBC shows.
If you only get that on one channel, that would be an indicator that it is the broadcast or source and not the TV.
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Old 01-25-2010, 06:44 AM   #11
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Default still fuzzy

well, got a new surge protector with filtration for electrical current, phillips, with no luck solving the problem. Pretty disappointed cause the pic is so great on this tv. doesn't matter what channel im on. happened twice yesterday. first time fixed by turning off then on tv. second time fixed by turning off then on cable box. found another forum with many people having the exact same prob. i'll be contacting best buy......
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Old 01-25-2010, 07:28 AM   #12
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Quote:
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well, got a new surge protector with filtration for electrical current, phillips, with no luck solving the problem. Pretty disappointed cause the pic is so great on this tv. doesn't matter what channel im on. happened twice yesterday. first time fixed by turning off then on tv. second time fixed by turning off then on cable box. found another forum with many people having the exact same prob. i'll be contacting best buy......
Contact Toshiba!! Then BEST BUY!!

Toshiba needs to be aware of this prob!!
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Old 01-25-2010, 11:29 AM   #13
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Try turning off the sound "enhancements" settings for the TV. Often times with audio just like video those so called enhancements do the opposite of what they should do.
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Klipsch RP-5 Pwred Towers (mains) (525 watts peak each 12"Subs)
All Klipsch RC-25(ctr),(2)SS1(surr),(2)SS1(rearSurr)
Toshiba (2)HD-A20,PS3,BD35
For SACD/DVD-A Samsung HD-841
Panny 50pz80u plasma
SETTINGS
RCA HD50LPW162 50"DLP w/HD2+
SA 3250HD
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Old 01-25-2010, 09:54 PM   #14
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I know exactly what your going through. I bought a 40" regza in November and It does the same thing. And like you said, when I turn it off and right back on it sounds fine. sometimes it won't happen for days and I put off trying to find a solution... It sounds like echoes from hell when it happens though.
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Old 01-26-2010, 02:19 AM   #15
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Quote:
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If you only get that on one channel, that would be an indicator that it is the broadcast or source and not the TV.
Yes I figured as much and it doesn't bother me it is so infrequent. It could also be a DVR sound issue as well because I haven't noticed it on live shows (the few shows that I watch live).
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