Question about Sony KP-48V90 TV

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Sony KP-48V90 I have a snowy picture!! I have tried everything.

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Re: Sony KP-48V90

Seve la pantalla toda verde y con rallas horisontales

Posted on May 24, 2009

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Why is my picture is snowy?

Hi Eddie,
Make sure that you're antenna/cable wire has a good connection. Don't disregard the ground cause it will give you a problem like what you've encountered right now. Also you have to confirmed the good signal from you cable provider. If the symptom persist despite the signal is good then the problem is internal. High chance that your tuner is faulty.
Thanks for using fixya.

Feb 05, 2011 | Sony KP-61S75 TV

1 Answer

None of the video inputs are working but the audio is fine.

You just make all vidieo input options to factory setting and try.
To get it follow this.

Press the MENU button.
The main menu appears

Surf through and select the Video Menu

To select the Vodeo Menu DISPLAY==>HILIGHT==>SEELCT
To restore factory settings :- Press reset on the remote control while the Vido Menu is selected. To restore each Mode to factory settings press reset after selecting the mode to be reset.

Dec 09, 2010 | Sony KP-48V90 TV

1 Answer


how many times does the red light flash its referred to as blink code , thiss well help in trouble shooting.

Nov 04, 2010 | Sony KP-48V90 TV

1 Answer

I have a sony kp-41t25 and when i use cable , the screen is like really snowy , but if i hook up a ps2 to the a/v jacks its fine . whats the problem ?

Your TV may have tuner problem. As AV mode is correct, there is no fault in the video section of your tv. Please check the tightness of the cable connection to your TVs socket also. If it is ok, report it to the cable operator and ask them to measure the power strengh of the cable at your home end. If there is sufficiant power strength, replace the tuner of your TV with similar type and number.

Oct 17, 2010 | Sony KP-41T25 41" TV

1 Answer

Flash focus is not alighing correctly. the blue color is off.

If the model number indicated is correct you will need to replace both of the STK-392-150 Convergence IC chips this set uses.

This can be a do it yourself repair if you are handy. The repair would involve getting at the two parts, being able to un-solder and replace both soldering the new ones in.

Total parts cost should on for example EBAY be under 25 dollars.

If this sounds like something you can handle let me know and I will give you basic instructions.


May 02, 2010 | Sony KP-48V90 TV

1 Answer

No picture

2 times flash shows problem in +B volt supply and possibly have some short circuit in horizontal area. There can be few parts damaged and need to be replaced.
If you know how to repair tv, I will provide you more technical information. If you don't have electronics knowledge, please contact nearest Sony service center.

Sep 24, 2008 | Sony KP-48V90 TV

1 Answer

No picture and tv automatically turns off

Good day.

You are getting an intermittent performance for your unit. One reason for this might be with the loose contacts on the high voltage section of your unit. Have it resoldered.



Aug 19, 2008 | Sony KP-48V90 TV

2 Answers

Picture clear then fades to snow when it does, makes annoying sound

sounds like poor solder on the ground conections of the tuner, depending on the age of the TV frostman

Feb 11, 2008 | Sony KV-27FS13 27" TV

1 Answer

Green shadow or bleed off around white or light colors

You can check out this great site, If the service mode does not correct your problems, you will need to replace or if your not experienced with solid state electronics, have a tech replace the STK convergence IC's. Good Luck Please do not forget to rate this thread.

Dec 13, 2006 | Sony KP-48V90 TV

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