Question about Akai CF2791 27" TV

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Sony TV with blurry picture

Hello. My Song big screen picture is really blurry. The colors are off and the picture seems almost doubled. Maybe it's because of the color. How do I fix it? Where can I check? Do I need to replace something? Please help! It's been about 3 weeks now. Thank you! J

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Re: Sony TV with blurry picture

Blurry picture is mainly due to focusing voltage is not proper. solution 1 check & adjust focus control on flyback. 2 check crt base for loose. 3 wire going to focus control on crt base got disconnected due to foreign materials deposit on it. 4 if tv is old possibility of crt getting weak.

Posted on Oct 01, 2007

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Sony KV-40XBR700 40" CRT WEGA

I too would like to know the solution to this question...we are having the identical problem and Sony doesn't seem to know how to fix it. Although, the picture from the DVD player is perfect, the pictures for cable & video games are terrible. Very frustrating!

Aug 24, 2011 | Sony KV-40XBR700 40" TV

2 Answers

I have a 52' big screen and the picture is shoing

Ur convergence is dead,go to buy the convergence repair kit.Find out ur make and models,and manufactures of ur TV buy it.
All big projection DLP have this prob. one time or other every manufactures,Sony,Samsung,RCA,many others.

Aug 26, 2009 | Standard (CRT) Televisions

1 Answer

I left my tv on when I went to bed and the picture was fine. Then I woke up and turned it off. When I came home and turned it back on, the picture was blurry all around the tv except in the middle of the...

is the blurry all around the picture have different color like a smear of red, blue or yellow?
if it is i think the posistor of your tv is not working. it is the one who activate the degaussing coil around the picture tube the prevent color miss-landing upon opening your tv set.

Aug 11, 2009 | Samsung SlimFit TX-S3082WH 30" TV

1 Answer

Red and blue shadows on my sony wega

hello it sound like convergance chips might be the trouble


Mar 23, 2009 | Sony FD Trinitron WEGA KV-32FS120 32" TV

2 Answers

Trinitron color is going out on each side but fine in the center

Hello vineinn2,

I would say that might be the problem, but it might also be a HV problem. I had posted this before and it might help you:

This may be a CRT problem. From what it sounds like i.e. dim picture, colors not bright. If you have a background in electronics I would tell you to check the voltage levels on the CRT pins and compare them to the values on a schematic, however if you do not have a background in electronics, I would suggest you taking the TV to your local TV repair shop and have them troubleshoot your problem.

Here is a possible list of things that might be wrong:

1) CRT going bad (The shop can try CRT rejuvenation if needed)
2) High Voltage on the anode not at proper levels (The shop can check this with a HV probe)
3) Video output levels low (The shop can check the voltage and signal levels on the CRT socket board, and on the video amplifiers.

These are the three primary possible issues.

I hope this helps,

Thank you,


Nov 21, 2008 | Sony FD Trinitron WEGA KV-36FS120 36" TV

1 Answer

Sudden color/picture distortion

you have a shorted green CRT that is affecting the other crts the short is internat to the crt that leaves what is called retrace lines. if the set is more than three years old then replace all three guns.

Feb 25, 2008 | Samsung TX-R3080WH 30" TV

1 Answer

Blurry Images

Hello paulaspec,

You have a problem with the three factors, and they are screen voltage, focus voltage, and control (focus 2) voltage. Basically these voltages have to be adjusted since the components in this section have aged some. These controls are usually located in the television on the IHVT (Integrated High Voltage Transformer) or as it is also called the flyback transformer. these controls must be adjusted together, along with the color controls. Here is how the adjustment is done (You will need a schematic diagram, a DC volt meter, and a color bar generator to do these measurments):


1) turn color and tint fully counter clockwise until you have a black and white picture.


2) connect the color bar generator to the TV (ch 3) and turn it on, you should see bars in various shades of gray


3) adjust as best as possible the color and tint controls to obtain the color bars on the screen Red Green Blue.


4) measure the voltages on the focus, screen and control grids of the CRT and match them to the schematic digram measurements.


5) adjust the focus screen and control grids to match the ones on the schematic diagram


6) once this is done then you adjust the color controls once again to obtain the red green and blue bars on the TV screen.


This should help if the CRT (picture tube) electron guns are still good and if the flyback transformer voltage supply is working.


However if you do not have a background in electronics please take the TV to a shop for repairs.


I hope this helps,

Thank you,


Oct 16, 2007 | Sony KV-20M20 20" TV

1 Answer

Double Picture

Goto menu and look for convergence control and realign colors.

Sep 22, 2007 | Hitachi 57G500 57" TV

1 Answer

Sony kv-32hv600 picture problems

Problem 1. Color patches at lower corners. These are caused by magnetic sources close to the TV. Do you have any Speakers close to the sides of the TV? Are they Magnetically sheilded? No? Move them away from the TV. Problem should then resolve itself in a couple of days. Problem2. Screen Slumping. Most likely a problem with the Pin cushion correction ckts. Get a good technician to have look. cost should not be much. Under 100$ plus Technician fees.

Aug 18, 2006 | Sony FD Trinitron KV-32HV600 32" TV

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