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Toshiba 46" Regza sound problem

igotta40
01-21-2010, 04:55 PM
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?

1happyguy
01-21-2010, 04:59 PM
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!!

PFC5
01-21-2010, 05:12 PM
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/catalog?hl=en&source=hp&q=cyberpower+surge+protector&um=1&ie=UTF-8&cid=1659827096696181941&ei=Gd9YS4TnOZXU8QbZnOy8Aw&sa=X&oi=product_catalog_result&ct=result&resnum=3&ved=0CCwQ8wIwAg#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!

igotta40
01-21-2010, 05:16 PM
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.

PFC5
01-21-2010, 05:24 PM
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.

igotta40
01-21-2010, 05:47 PM
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?

Loves2Watch
01-22-2010, 06:30 AM
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.

fuz
01-22-2010, 07:29 AM
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!

fast200
01-24-2010, 01:36 AM
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.

Loves2Watch
01-24-2010, 07:24 AM
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.

fuz
01-25-2010, 06:44 AM
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......

1happyguy
01-25-2010, 07:28 AM
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!!

PFC5
01-25-2010, 11:29 AM
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.

troubletrouble
01-25-2010, 09:54 PM
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.

fast200
01-26-2010, 02:19 AM
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).

Loves2Watch
01-26-2010, 08:49 AM
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).

Dish recommends that you plug your receiver/DVR directly into the wall outlet and not use a surge protector. Surge protectors have been known to cause problems for some of Dish equipment (though I don't know why).

fast200
01-26-2010, 10:48 PM
Dish recommends that you plug your receiver/DVR directly into the wall outlet and not use a surge protector. Surge protectors have been known to cause problems for some of Dish equipment (though I don't know why).

I spoke too soon. My wife said she encountered this same problem tonight. Is everyone having this problem using DishN?

Do they really suggest skipping a surge protector on a DVR? If I'd known that I would have just bought a Homeplug adapter for my 722 instead of spending hours making a wireless bridge! :)

igotta40
01-27-2010, 09:25 AM
I went back to Best Buy and told them I intend to return the second TV. The rep advised me to first contact Toshiba, and here's what he said...it sounds like a problem in the TV's software and that they may be able to walk me through a settings adjustment. He also said they pushed around 65 of these same models over the holidays with not one complaint or return, and that if there were a problem with a batch they received they would have gotten a recall, or otherwise would definitely know about it. He was the young man who sold me the set and the home theater and he impressed me with what he knew, so I'll take his advice. I just haven't called Toshiba yet but when I do I'll be sure and post up about it.

Loves2Watch
01-27-2010, 09:27 AM
I spoke too soon. My wife said she encountered this same problem tonight. Is everyone having this problem using DishN?

Do they really suggest skipping a surge protector on a DVR? If I'd known that I would have just bought a Homeplug adapter for my 722 instead of spending hours making a wireless bridge! :)

I don't see where using a wireless bridge has anything to do with plugging the DVR directly into the wall receptacle.

fast200
01-27-2010, 02:54 PM
I don't see where using a wireless bridge has anything to do with plugging the DVR directly into the wall receptacle.

My DVR has powerline networking built in, but they recommend you plug the DVR directly into the wall socket to use this feature. I didn't want to do this so I made a wireless bridge out of my old router and used the ethernet port for updates instead.

If I'd have known they recommended plugging a dvr directly into a wall outlet anyway, I would have saved myself the trouble and skipped the whole wireless bridge part.

cgreene65536
02-06-2010, 01:13 PM
i have the same problem with my new toshiba 46" hdtv, purchased just before christmas from best buy in springfield mo....
bust buy exchanded the tv but still have the same problem. dish network exchanged my hd box model vip 722, i've changed my hdmi
cable 3 times ... so! 2 different tv"s...2 different dishnetwork box's
3 different hdmi cables and still the same problem. i called toshiba
the lady?? i talked to suggested that i plug the coaxel cable stright into the tv and bypass dishnetwork box, iexplaned that it i did that
your not going to get any picture at all, Duhh

now when i run the tv on my outside antenna i have NO problem at all
it will play all day and i have no trouble at all, however that said i dont have the choices of programing on just the antenna. so any one have a suggestion???........cgreene65536

Loves2Watch
02-06-2010, 03:44 PM
In both cases if your TV's have an optical audio input and you use component for video connection that may well resolve your issues.

PFC5
02-07-2010, 12:59 PM
i have the same problem with my new toshiba 46" hdtv, purchased just before christmas from best buy in springfield mo....
bust buy exchanded the tv but still have the same problem. dish network exchanged my hd box model vip 722, i've changed my hdmi
cable 3 times ... so! 2 different tv"s...2 different dishnetwork box's
3 different hdmi cables and still the same problem. i called toshiba
the lady?? i talked to suggested that i plug the coaxel cable stright into the tv and bypass dishnetwork box, iexplaned that it i did that
your not going to get any picture at all, Duhh

now when i run the tv on my outside antenna i have NO problem at all
it will play all day and i have no trouble at all, however that said i dont have the choices of programing on just the antenna. so any one have a suggestion???........cgreene65536

If the sound was good using an OTA antenna, then it is not the TV and likely simply a setting in the Dish STB for the audio settings. Try changing the audio output to FIXED instead of variable if it is possible. I don't have Dish so not sure what the audio options are for sure.

Big_Willy_555
02-14-2010, 12:40 PM
I have a 46XV645U as well and have the same issue. I just called Toshiba and they said many users have this issue. They created a "file" on this issue for my serial # and claim that they are working on the issue and will notify affected users when they have a fix. I guess I'll have to wait and see. they claim it is with HDMI inputs only and that the workaround is to use component signals until they fix it. I'm not about to run out and purchase component cables so I guess I'll put up with power cycling until they fix it. I would advise that you call them and get in line for the fix. :huh

PFC5
02-14-2010, 05:31 PM
You can get decent cheap component cables for about $5.00 along with stereo audio cables at www.monoprice.com, so I would suggest you do this. You may find that when switching channels it changes the screen faster using component and decide to continue to use it even after the fix for cable/sat box connections. Just remember you have to adjust the pic settings for each input and component will likely look exactly the same as the HDMI inputs after adjusting it.

Big_Willy_555
03-09-2010, 05:33 AM
GREAT NEWS! Toshiba called today and said they where shipping a USB flash drive with the firmware fix for the buzzing sound issue. Was not happy with the workaround as I wanted an all HDMI system. I'll post again when it arrives and I've had a chance to test it. For the record Toshiba claims that the issue is only with HDMI inputs.:yippee:

Troy77
03-09-2010, 06:57 AM
I have the same set with the same problem. I returned the first one and have the same problem with the second one. It is an HDMI input problem. This is the best TV for my price range so im just using component cables to avoid the sound issue until i get a surround system and bypass the TV speakers all together.

Big_Willy_555
03-09-2010, 08:54 AM
Dude,
Did you call Toshiba and get on the list? I'm not sure just adding surround sound will help you. The audio is being distorted digitally inside the TV. So if your using the HDMI inputs (which you should be) you will still have issues without the firmware (its NOT the speakers on the TV). Why not?, its free after all. The Toshiba guy I talked to yesterday says the USB drive just pops in the port on the side and the set does the update. I'll be sure to post my experience after mine arrives. These folks have been great to deal with so far. :2cents :busy:

cgreene65536
03-12-2010, 02:00 PM
i recieved the same phone call on 3/9/10 from toshiba, it's supposed to be on a flash drive that plugs into the usb port on the tv
and self extracting, i hav'nt recieved it yet and i sure hope it works
cgreene65536







Dude


Did you call Toshiba and get on the list? I'm not sure just adding surround sound will help you. The audio is being distorted digitally inside the TV. So if your using the HDMI inputs (which you should be) you will still have issues without the firmware (its NOT the speakers on the TV). Why not?, its free after all. The Toshiba guy I talked to yesterday says the USB drive just pops in the port on the side and the set does the update. I'll be sure to post my experience after mine arrives. These folks have been great to deal with so far. :2cents :busy:

PFC5
03-13-2010, 10:10 AM
Dude,
Did you call Toshiba and get on the list? I'm not sure just adding surround sound will help you. The audio is being distorted digitally inside the TV. So if your using the HDMI inputs (which you should be) you will still have issues without the firmware (its NOT the speakers on the TV). Why not?, its free after all. The Toshiba guy I talked to yesterday says the USB drive just pops in the port on the side and the set does the update. I'll be sure to post my experience after mine arrives. These folks have been great to deal with so far. :2cents :busy:

With a surround sound system you run the audio directly to the receiver first or along with running it to the TV. The optical output on all these HDTVs only send out 2 channel stereo from all sources accept the RF OTA (antenna)/cable system QAM tuners (no STB used) to get 5.1 Dolby Digital, so this is the preferred way even if you get the HDMI input fixed. ;)

scorbing
03-13-2010, 10:41 AM
GREAT NEWS! Toshiba called today and said they where shipping a USB flash drive with the firmware fix for the buzzing sound issue. Was not happy with the workaround as I wanted an all HDMI system. I'll post again when it arrives and I've had a chance to test it. For the record Toshiba claims that the issue is only with HDMI inputs.:yippee:


That's funny you say that because I just went to their web site and there absolutely no such update for this TV there.

PFC5
03-13-2010, 11:47 AM
Sometimes it takes 1+ months to get a update on web sites from these mfg for some reason. I don't know why though.

cgreene65536
03-25-2010, 09:08 AM
i recieved the fix 2 weeks ago and so far it's working, no more sound issues
it comes on flash drive, and self extracting

docthebluesman
12-04-2015, 02:13 PM
I am having the exact same problem. After the set is on for 3-4 hours, the sound becomes garbled. I turn the set off and then immediately back on and the sound works fine for 3-4 more hours and then the problem repeats itself. I checked all my devices to make sure it wasn't any of them and my process of elimination clearly proved it is the TV set that has the audio problem. I will try some of the fixes that I see in this forum, some of which I have already ruled out. If anyone has any more suggestions, please share.