Question about Sony KP-48V90 TV

Open Question

Sony model kp-48v90 there is sound but no picture screen is black

Posted by on

5 Suggested Answers

6ya6ya
  • 2 Answers

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

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

jomaru
  • 337 Answers

SOURCE: No Picture on my Sony KP-53HS10

The set might have lost the high voltage needed to light up the picture tubes,the easiest thing to check is for a loose conection in the horizontal drive transformer first ,the power supply and the output transformer area,you can try to find it by removing the back cover ,repluging the set,turn it on and with a wooden or rubber handle tap in different areas of the chassis to see if it reacts,you might have to keep pressing the power button while you are trying.If you are familiar with tv service you have a few places to check,some resoldering might be needed,you might need to check the output transistor for a short ,if the transistor went bad it did take a fuse or safety resistor.If you are not too familiar I would suggest to call for help from a servicer,I dont think is time for a new set just yet but an estimate will help you decide.Let us know how it goes or if you need more information.

Posted on Nov 01, 2006

techman
  • 3130 Answers

SOURCE: sony kp-46s25

It sounds like you are going to need to have the convergence IC's replaced. Not really a hard job, but the job requires the proper tools, soldering skills, and a service manual to get the proper part numbers and to perform convergence alighnment in the service menu after the IC's are replaced. Good Luck

Posted on Mar 28, 2007

  • 1 Answer

SOURCE: Sony KP-48V90

seve la pantalla toda verde y con rallas horisontales

Posted on May 24, 2009

rylee_smith
  • 8619 Answers

SOURCE: My Sony KP 48V90 has

Hi


Thanks for using FixYa. The issue is with the failed convergence (STK) ICs which needs to be replaced. It’s not a difficult job if you want to do this yourself, you should require some basic knowledge about soldering-resoldering components. To start with you’ll have to open the back of the unit and then replace the ICs(STK ICs) which are located behind the black heat sink and also check the resistors as if they are short the ICs might blow again after sometime. There are repair kits available which includes repair instructions with the parts, if you want to do it yourself, you can buy and repair it yourself. Please do accept the solution if the issue is resolved or post a comment for further assistance.


Thanks
Rylee

Posted on Aug 27, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Removeing the cover of the kp48v90


DO NOT REMOVE COVER (OR BACK). ... MODELS: KP-43T90, KP-48V90, KP-53V90,. KP-61V90 ..... Stubborn stains may be removed with a cloth ... warranty does not cover customer instruction, installation, set up adjustments ...THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER

Jan 24, 2012 | Televison & Video

1 Answer

I have a Sony KP-61XBR-300 rear projection tv---- Picture went out. Is this the light bulb and if so where is located. Can I get it out myself?


This is a projection TV: it uses cathode ray tubes instead of bulbs. If you have a black screen, but still have sound, then the problem is on one of the circuit boards. Very few parts are available for this model.

Dec 05, 2010 | Sony KP-61XBR300 61" Rear Projection...

1 Answer

I have a sony model KP-48V90 All of the sudden the picture started ghosting and the color went green and redish haze


Projection TV sets are known to have two common problems. The first problem that is common to these sets is convergence failure. When this happens the TV will usually look 3D, Wavy/Distorted, etc. It may also shutdown and blink an error code.

The second common problem with Projection TV sets is dull video, halos around objects, white looking video, or red overpowers the screen. This is commonly caused by the fluid in the lens being clouded overs.

To get fixed either call in a local TV repair company or goto sites such as www.TvRepairKits.com to get a repair kit with instructions.

Oct 14, 2010 | Sony Televison & Video

1 Answer

I have a sony 50in rear projaction model kp-48v90 and when its on the right and left sides have a slight red streak on the sides but not in the center what can i do to fix this problem at home


U can tries go in ur convergence menu.Tries auto or manual lines up the +'s together.Not able to,ur convergence are dead.The shop will cost u $300-350 to fix convergence problems for parts and labors.

Apr 02, 2010 | Sony KP-53V90 53" Rear Projection...

1 Answer

Sony model KP-53V80 wont show picture or sound


YOU LOST VERTICAL DEFLECTION THIS WILL REQUIRE PARTS REPLACEMENT

Dec 25, 2009 | Sony KP-53V80 53" Rear Projection...

1 Answer

Sony kp-61hs10 tv, has sound but picture goes black after 3 min.


I just had the same problem. If your lucky it might be a free 5 minute fix. The five light flashes mean impropper current. I took the front grill off, then behind that is another black cover, I took that off and noticed the circuit boards COVERED in dust. I then took an air can duster and blew off all the dust... works like new. No more flashes and in an out picture. The collection of dust was interfereing with the electrical current.

Ben

Apr 15, 2009 | Sony KP-61HS10 61" Rear Projection...

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

Kp-65wv700


You need to adjust Green screen drive control your green tube could be shorting out.

Sep 14, 2008 | Sony KP-65WV700 65" Rear Projection HDTV

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.


Regards,


chris

Aug 19, 2008 | Sony KP-48V90 TV

1 Answer

Sony KP-48V90


seve la pantalla toda verde y con rallas horisontales

Jan 06, 2008 | Sony KP-48V90 TV

Not finding what you are looking for?
Sony KP-48V90 TV Logo

Related Topics:

39 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sony Televison & Video Experts

kakima

Level 3 Expert

102366 Answers

The Knight
The Knight

Level 3 Expert

74136 Answers

Jerry Greenberg
Jerry Greenberg

Level 3 Expert

1667 Answers

Are you a Sony Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...