Question about Sony FD Trinitron WEGA KV-34HS420 34" TV

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Picture - Flickers/Shimmers

When watching sporting events (particularly football) in high definition (to a lesser degree on regular channels)any part of the on-screen image that is white flickers and shimmers. These flickering white images usually include sidelines, foul lines, white uniforms, etc. It seems that the purer the white color, the more the image flickers/shimmers. I lowered the brightness level but it does not appear to have made much of a difference. Is there any other adjustments I should try or should I take it in for repair? I purchased the set in November 2005.

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Re: Picture - Flickers/Shimmers

I think the solution to your problem is adjustment, not of the brightness but either the `contrast' which is probably too high, or the `sharpening' if your set has this function. Too much sharpness will cause a shimmering effect, especially where you see an edge between colours.(due to ringing at a very high video frequency). Too much contrast can start to turn the video signal upside down, causing noise on the peak white in the picture. Another cause is if the RF signal into the aerial socket is too large, This can be corrected by an attenuator, costing about £2. 6dB or 10dB can be tried.

Posted on Oct 25, 2006

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Re: Picture - Flickers/Shimmers

Definatly has a problem it sounds like my freind. Could be a problem with the abl circuit, the picture tube or a voltage regulation problem. Good Luck PS Please dont forget to rate this thread.

Posted on Oct 23, 2006

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SOURCE: flickering

When you say flickers?? does the sound stay on or does the whole set go on then off or is it just the picture that flickers on and off and sound does flicker too? need more info please.

Posted on May 06, 2006

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SOURCE: Screen/Picture Flickering

alo all..

i got problem wif my TV... sony wega trinitron 29inch..

- last 2 night... the TV @ screen slowly lost color for 2-4second... and after that it suddenly turn off for 5-10second and turn back on itself. the led blink 3-5times....

what the problem to my TV?

Posted on Jan 09, 2008

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SOURCE: Screen flickers upon power up

Looks like your picture tube is dying, or there is a bust capacitor(s) inside...I'd recommend taking it to a service shop to get it repaired.


Posted on Apr 26, 2008

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I have a constant ringing sound coming from the tv. It goes up and down as I increase or lower the volume by remote. As I change the audio option to "Spanish", regular "English" audio comes out on c

The fact it shows on tuner and not DVD means not likely a audio problem--check all audio settings in the set's menu AND if you are using a box for signal look there--has to be a setting.

Some JVC sets (brand indicated here) also had issues with when watching the background audio (like a sporting event) was louder than the people talking and could be interpreted as ringing--This is a setting in the set called something like "Theater" or "Hall"

Has to almost certainly be a setting in the set.

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Black screen

Possible causes
  • Your TV is not receiving or displaying the signal from your DIRECTV® Receiver.
  • Your receiver has correct guide information, but is not processing video correctly.
  • You are viewing a channel where an upcoming sporting or special event is scheduled or has recently ended.

  • Turn TV off and on.
  • Make sure light on front panel of receiver is lit.
  • Press the "TV/DSS" button on the remote control or front panel of the receiver (not all receivers have this option).
  • Reset the receiver by unplugging the power cord for 15 seconds.
  • Check all cable connections between the dish, receiver and TV.

If the picture is black, but the program title and description display in a banner the top of the screen:
  • If the problem is only occurring on a few channels, check the detailed description of the program through the on–screen guide on those channels. Often, we display a blank screen with a banner before and after a high–profile event to alert customers about the event.
  • Reset the receiver by turning off and unplugging the power cord for 15 seconds.
  • Run a signal meter test to check your signal strength (press "menu" and look under "setup" or "installation").

If your signal strength is below 70 (or below 60 on HD receivers) in clear weather on transponders 1 and 2, see our troubleshooting steps for "Searching for satellite signal. Please stand by." You may see zero strength on transponders 4, 12, 18, 20, 26 and 28. This is normal in many areas. Your system manual shows how to run cables and point your dish.

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Are they HD compatible? We recently upgraded our cable on our 32 inch Sony Trinitron Wega tv (bought it in 2004) and got the dvr/HD package but get no HD

These units are not HD sets. So if you want HD sorry to say you will need a different TV. If you can live without the HD these TVs have a great picture thats as close to HD as a regular set gets.

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it is because the channel is being brodcast in hd and not just digital. it is an unfortutane side effect of the dtv convertion, all brodcast are now digital but not all are high def, if you had a high def tv and were watching and standard definition channel it would have thick black line on the left and right because the image does not fill the dislay

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Tv/remote input problems

Try plugging your cable box in using a/v cables (red,white,yellow) and see if you have a picture on a different input from the box. If so, go into your general settings in the box and change the output channel to 4 instead of 3. Then try your TV on 4 and see if your picture comes in. I have seen TV tuners go out on just one channel before.

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If the LCD only has coax, it will never display a HD picture quality. However, the Comcast HD Box will still display a picture using the coax connection. So, you could watch any HD channel, but the picture quality will not be high definition.

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Is this TV High Definition

Your Toshiba 32HF73 is a high definition TV. So good ahead and get the HD cable box and enjoy the picture on the HD channels! Please give feedback if I answered your question, thanks.

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Magnavox hdtv

The Magnavox 27MS343S is a standard analog 27" TV. It is not high definition and therefore cannot generate a posterized or pixelated picture. I will bet you are using a digital cable box or satellite reveiver and the problem is in that box, not the TV. Hook up a regular VCR to the TV, set the TV to channel 3, put in a good pre-recorded tape and hit PLAY. If the tape plays nice and clear on the TV, the problem is in your digital box.

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If your DVD player is separate from your tv, you might have a loose cable plug or connection. Depending on the type of flicker you have, a vertical circuit loose connection would cause this. If you could connect it to a cable or antenna it might tell you where the problem is located. A faulty circuit in the DVD might cause this too. Stargazer

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Picture flickers on and off

Sounds like a typical sony that has a cold solder connection in or on the horizontal driver transformer or the output transformer. If your not a tech I woulf HIGHLY advise that you take or call an expert in to assit you with this repair . Good Luck

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