Question about Toshiba 46XV640U 46 in TV

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Keeps taling longer for tv to start

Toshiba 46xv640u the tv kept taking longer and longer to start... the power would come on but no picture. Once I had a picture, I just left it on for a few months so I could watch tv with out waiting for a long time for it to start up. One day, the power went out and the tv will not started again.

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Probable power supply decline to failure.

Posted on Dec 28, 2013

Testimonial: "replaced power supply and still no picture... tv turns on, but still no picture."

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6 Suggested Answers

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: Toshiba Plasma clicking noise

Check the fan, it may be dust or a bad bearing.

Posted on Oct 10, 2007

  • 2336 Answers

SOURCE: Toshiba 50HP66 Blank Screen with sound

I would suggest to read what other members have reported by clicking here.
Good Luck.

Posted on Apr 28, 2008

  • 1 Answer

SOURCE: Was watching tv( Toshiba Regza)and the screen went blank.

I have the same television and ocasionally the sound shuts-off, but I still have a picture.
What type of cable system do you have? What kind of converter box? I am trying to find out if it is the TV or converter box. I change the channel a couple of times and the sound usually comes back.

Posted on Feb 17, 2009

  • 1 Answer

SOURCE: power led blinks but no picture or sound

Had the same problem myself. Took some doing but I managed to find a service bulletin that I downloaded. The problem is with the siene module and all you need to do is unplug connector JP63A from the main board and your TV will work again.
Take the back off the TV (there are a lot of screws) and look on the left hand side of the main circuit board that is mounted in the center of the TV. You will see a small white connector that is labelled JP63A, simply unplug it. Plug the TV back in and let it reboot. That's it, should be able to watch immediately.

Posted on Mar 15, 2009

  • 3 Answers

SOURCE: No picture

You have a bad Y sustain or bad Z sustain! End of story! Please feel free to give me a call if you would like more info!

I'll help u fix your TV!

Ask for Dave @ 1-503-432-9904 or message me @ pleasefixitdave@yahoo.com

Posted on Sep 11, 2009

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1 Answer

Can I watch netflex movies on my Toshiba 46xv640u tv?


I just downloaded the manual from Toshiba and did a search for Netflix and nothing came up. When I googled your model I saw other people complaining that the TV didn't come with Netflix built in. You can download the manual here: 46xv640u om pdf

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My toshiba 46xv640u goes through the initial setup every time after turning it off and turning it on later.


Most newer LCD, LED, or Plasma models "flash" the setup into non-volatile memory devices so this is not normal. If you are requested to "save" the configuration and don't or don't know how, maybe this would happen. Even power outages should not cause what you are seeing unless the configuration is somehow not be retained when the power is removed or by chance you are using a power strip to turn it off when it needs constant power to retain the settings.

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My 36'' Toshiba televisions picture keeps going fuzzy then if you turn it off and on the picture comes back on. Also when watching movies we lose the picture but hear the sound. Once again if I turn off...


I would start with the Tcon but the main would do this as well, along with the power board...test the voltages coming from the ps board when its giving issues and see if they are ok, if they are try the tcon board

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I have a Sony Trinitron 32" tv. When I turn it on, it has started taking longer and longer for the picture to come on. Sound is fine. Now once the tv is on for a while, the picture goes black for...


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1 Answer

My parents lost their manual for their new Toshiba Tv. Model # 46XV640U. Where can I get one.


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1 Answer

Red power light continuously blinking. no picture no sound.


It could be the lamp went out and needs replacement. The Toshiba website states when this happens to unplug the televison for 10 minutes then plug back in. If that does not work then try another power outlet. If that does not work then call for service

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1 Answer

Toshiba TV picture has shifted high


if it cannot be adjusted then there is a problem in tv. your problem is in vertical output circuit Can this be corrected easily ? yes or do I need to start looking for a new TV? I love this one and would like to keep it a while longer. not to look for new tv.you will keep it for longer that has a picture that recently shifted upward and now cuts off about 1 inch of the top of the picture. Otherwise it functions properly. your problem is in vertical output circuit please check 1loose contact in vertical output section 2 capacitor defective in v/output. it is a common problem. it is a not a major problem. if you are not tech person get it done by skilled tech. hope this will help.

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1 Answer

Power light flashing/ no picture


I have the same problem. The only way to get the TV to come on is to unplug it, but once you get it back on it turns itself off again in a few minutes.

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