Question about Televison & Video

1 Answer

Picture is like dull. i ajust the focus in the flyback then comes like fine vertical lines

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 998 Answers

The trouble is not the focus of the flyback transformer, the one you adjust is the screen try to return the original position. try to check the crt socket it is connected to the picture tube if you see something in the pin that is color green it is corroded try to replace it with the same type of crt socket.

Posted on May 20, 2011

Ad

1 Suggested Answer

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

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Hi, I had a problem with my Sony CRT television.


The faint background lines are vertical flyback lines. Start your diagnosis by turning the brightness and contrast controls to minimum and view the screen in a darkened room. If you can now see a raster with horizontal lines visible then it is likely that the tubes A1 screen voltage is excessive. The screen voltage is usually within the range of 400v to 600v. Adjustment for this is often part of the flyback transformer. Check all high value resistors
in the screen and focus circuitry. Some of these reistors may be
built into the flyback transformer. As the picture gets brighter the beam current increases, this will eventually cause the X ray protection circuits to trigger shuting off the set. A fault in the video drive circuits to the cathodes of the tube will cause similar symptoms but usualy results in a predominance of one colour, ie
bright red, blue or green raster with flyback lines.

Oct 20, 2013 | Sony KP-53HS10 TV

1 Answer

Samsung txr3079 adjustment problem: I have a TXR3079 CRT HDTV (chassis type K62B). I replaced the deflection board to stop a whining/noise problem that seemed to be coming from a transformer next to the...


ow voltage i missing one of the diodes in ow circiuts is faulti ,bad,or the resistor between ow transistor and ow diodes is open, bad,or ow transistor is oc

Mar 03, 2017 | Samsung TXR3079 TV

2 Answers

My picture turns into a white line and comes back if you hit the front bottom of console?


I think you flyback transformer is going out. Eventually it won't come back when you hit it.

Oct 30, 2009 | Toshiba 32A33 32" TV

1 Answer

Picture will not remain in focus.magic focus feature fixs temporaily then condition returns


There is usually 3 flyback (hi voltage transformer) that gives the high voltage to the tube over the red wire.
On the flyback you got two adjustment. Focus and ''brightness'' ajustment. Sometimes, you can ajust from the back and they leave opening for the screwdriver entrance, otherwise, you remove the chipboard panel and adjust those screw. It usually write wich ajustment is focus directly on the flyback. As you can see its a bit of a technical ajustment, plus you have to do it when the tv is running and with the voltage on. Needless to say that its pretty easy to do a short in the electronics circuits. I hope you have someone handy with basics electrical skills. Also this might mean your tv have some parts getting in problems actually, but still it would be the first thing that i'd try in this situation... Let us know...

Oct 12, 2009 | Hitachi 50UX26B/27K 50" Rear Projection...

1 Answer

Have model F25190SE, old 1992 tv, Chassis CTC177AC. No signal coming in from rf connector, television all snowy. Can use the rca connections, still has very fine lines in picture. I've replaced the rf...


cristal and IC to be replaced and solderings on all grounds in the tuner unit. maybe costly for a tv of that age, for the fine lines there are 2 ajustements on the back of the tv set, one is focus and the other one is sceen, that ajustement is too high , just turn the ajustement counterclockwise. the tv will become darker

Jun 30, 2009 | RCA Televison & Video

1 Answer

Horizontal lines on picture


Can't advise on entering setup but the lines may be due to the maladjustment of the brightness control on the flyback. There will normally be two adjusters, one for focus the other for brightness. 

Nov 26, 2008 | Televison & Video

1 Answer

RCA P46921. Just changed flyback.


First, this assumes nothing else is going on to cause it. Here's what I did. Go to the 'green grid' via the v76 menu and go through the alignment there. Notice that there are red letters, blue letters, and a green grid. While you are in this screen, adjust the red, green, and blue focus watching the individual color's item until they are in focus. If they won't focus here, they won't focus and you have something else wrong (what I do not know). Then, return to normal programming, then select menu on the remote, then screen, then adjust projection tv convergence both horizontal and vertical crosshare. That ought to get it.

Mar 16, 2008 | RCA P46921 46" Rear Projection Television

1 Answer

Sylvania tv


I know your problem for sure. If the fine line you are seeing is horizontal, you have a bad capacitor (or cold solder joint) in the "vertical deflection" circuits. Look for four of the largest wires coming from the picture tube and follow them down to the circuit board. These wires do NOT come out of the BACK of the tube, where most of the wires come from, but rather come sort of from the side of the tube. Two of them will go down to the board near the largest component on your board known as the "flyback transformer". Disregard these two and follow the other two. They will go near either two transistors or a vertical deflection chip. The board will normally be labeled "vertical" or vertical deflection near these transistors. There will be two or more capacitors very near these transistors. Look at them on the underside of the board and look for a bad solder joint. Push on the capacitors left and right while observing the underside of the board and you might be able to see the bad joint. If it is a chip instead of transistors, you could still have a bad capacitor or cold solder joint, but in most cases if it's a chip, then the chip is bad. Since, however, you can tap on the tv and make it work temporarily, this tells me that you probably have two vertical deflection transistors with associated capacitors. If the caps are good and no cold joints, then replace the transistors. This part of your tv is what pulls the electron beam up and down vertically and is thus called the vertical deflection circuits. With no vertical deflection, then the beam just moves left and right and never moves up and down. The picture is still there, but it is contained inside the fine line where of course you cannot see it. The parts in this circuit are not expensive at all. Keever

Mar 03, 2008 | Televison & Video

1 Answer

Traditional toshiba TV picture problems


it is due to poor focusing please check 1 set with focus control fitted on flyback transformer, 2 check focus control wire comes to crt base is loose or some foreign material deposited on it. 3 crt base loose contact. 4 if tv is old then there is a possibility of crt is getting weak. if you are not a technical person do not open set as tv has very high voltage inside. hope this will help.

Oct 01, 2007 | Televison & Video

2 Answers

Mitsubishi cs-35401television


HORIZONTAL FAILURE AND LINE DOWN THE SCREEN. REPLACE T5A1 LOCATED ON PCC-3-PCB. PT#349P145030(FOR CS-35401,CK-35402 ONLY) Hope this helps! Troy

Sep 11, 2007 | Televison & Video

Not finding what you are looking for?
Televison & Video Logo

Related Topics:

23 people viewed this question

Ask a Question

Usually answered in minutes!

Top Televison & Video Experts

The Knight
The Knight

Level 3 Expert

74459 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Electro Med Services...
Electro Med Services...

Level 3 Expert

6694 Answers

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

Answer questions

Manuals & User Guides

Loading...