Question about Televison & Video

1 Answer

Thin diagonal lines on screen. How to adjust whit balance ,screen end focus?

Posted by on

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
  • 700 Answers

Is that diagonal thin line about 10 to 20 degree slant? And then you have a very bright raster?

Then you set the flyback(for tube tv), I think its "screen" voltage is set too high adjust it slowly to lessen the brightness. It is commonly a small pot on the side of the flyback together with the focus pot.

If you have raster turn the tv on, use insulated screw diver, then slowly turn the knob to the direction(CC or CCW) where your raster go dim.

Be careful your dealing with live and high voltage. If your not inclined on electronics better not to.

Oh BTW, set your settings to normal.

Posted on Sep 30, 2009

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

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

White lines across tv screen


Without seeing the lines I can't be sure what your set has wrong, but here are a some possibilities:

If the lines are lines are confined to the top inch or two of the screen and the picture looks otherwise normal, the trouble is bad capacitors in the vertical output circuit. Fixable by replacing the bad parts.

If diagonal lines are across the entire face of the picture tube and the picture looks washed out, the trouble is often a bad capacitor on the 200-volt line to the picture tube. This may be on the main circuit board near the horizontal output transformer, or on the small circuit board plugged onto the end of the picture tube. Again, replacing the bad capacitor can fix this.

If your TV is actually an RCA, someone may have bumped a rear-panel adjustment. On the back of the TV near the bottom right are two small knobs. RCA left these adjustments exposed inside of putting them inside the set like other manufacturers. These sometimes get bumped if someone was behind the set cleaning, or if a pet got back there and hit them with a tail. The top knob adjusts focus, and the bottom knob adjusts something called G2 or screen voltage. If this gets turned up too high it can cause the faded picture and diagonal white lines. Turn the adjustment down until a black screen looks black instead of gray.

A bad picture tube or horizontal output transformer can also cause lines through the picture. If this is the case with your set, it's time for a new TV. The transformer is relatively inexpensive but labor costs aren't, and the repair bill may exceed $200. If the tube is bad, there's no point even considering repair. The tube cost alone exceeds the cost of new TV.

Hopefully your lines are easy and cheap to fix. Good luck, and thanks for using Fixya!

Jul 22, 2011 | RCA F35673MB 35" TV

1 Answer

2 thin lines from top to bottom 5-6 in. from ends of screen.


if your set is a plasma then that can happen .. LCD screens are not known for that problem but it does happen to them also .. sometimes you can balance the screen a bit better by leaving a blank bright screen on for an hour or so ... also just playing wide screen often reduces the effect over time .. DLP type projection TVs dont normally do that but LCD and CRT type projections can .

Jun 24, 2010 | Televison & Video

1 Answer

Thin red arched lines, when screen is dark.


common problem with sony, focus and picture level need to be adjusted, should be done by a tech. (high voltage) in focus block.

Nov 24, 2009 | Sony KP-57WS500 57" Rear Projection...

1 Answer

Screen has too much green all of a sudden


Try balancing the tubes out, turn your color all the way down and the brightness in the middle, then find the focus block, it will be a block with 6 controls one row will say screen the other will say focus near the picture tubes, adjust the screen controls(one control for each color) until the picture has a good black and white look to it, then turn your color up and it should look fine. This is how i balance out the picture. But there is another method that allot of techs use, the other method is to adjust the brightness up until you see what is called retrace lines it is a jagged line going down the screen, once you see these lines back the adjustment down just until they disappear. Do this for all three colors. This method works but on an older set can throw the white balance off because of tube wear.

Sep 03, 2009 | Hitachi 57F500 57" Rear Projection...

1 Answer

My Sony Camera screen when i turn it on is white & has a pink line going diagonally through the screen


A multicolor vertical line may display on the camera LCD screen if there is glare on the subject being photographed. Avoid photographing very shiny surfaces that reflect excessive amount of light into the camera lens. Follow the procedure below to resolve this issue:
  1. Record the video or click the still pictures in a different lighting environment.
  2. On the camera, move the FOCUS AUTO/MANUAL switch to AUTO .
  3. Set the PLAY/STILL/MOVIE selector to MOVIE or STILL .
  4. Press the WHITE BALANCE button until the white balance is set to AUTO (no indicator).
  5. Record the video to new media.
  6. NOTE: If the issue is still unresolved after completing all of the troubleshooting steps, service may be required.

Aug 13, 2009 | Sony Cyber-shot DSC-W70 Digital Camera

1 Answer

Thin red line question continued


they are marked "R", "G", "B" the "G" is in the middle. they are hard to see because it is imprinted in the molded plastic. also the words "screen" and "focus" are imprinted use a flashlight to see them. on most of these focus blocks the screen controls are the ones closest to the mounting screws. blue is to the right green in the middle and red to the left but not all of these are the same so check them before you turn them. the white blob is a type of glue to keep the posts from being turned and is a good referance point to get back to the same spot if you have gone too far with the adjustment.turn them carefully with a screw driver to brake the glue.then make your adjustment if this does not cure your problem you will need to replace the block have a tach do this ( critical white balance adjustment and picture tube voltages).

Mar 14, 2008 | Sony Grand WEGA KDP-57XBR2 57" Rear...

1 Answer

Thin red horizontal lines across screen


While looking at your TV, remove the bottom right speaker grill. There you will find a cover held by a couple of screws. Remove the screws and behind the cover you will find the "focus pack" which is a group of 6 adjustment screws. The top screws adjust (in order from left to right) the brightness of Red, Green and Blue.

What you will do preferably at night (or with the room dark) turn the top left adjustment screw (Red) all the way to the left and then gradually turn it to the right until the point you can see the retrace line and then turn it slightly to the left until the retrace line disappears. That's it! You can do this for all three colors - if need be. These do go out of adjustment every now and then. The 3 screws on the bottom are to focus the colors individually to minimize "bloom" on the screen. It's best to be in service mode on your TV when doing this OR open up the cabinet and cover (with something) the other 2 colors while you adjust the focus of the color you're adjusting.

Good Luck!

S

Mar 13, 2008 | Sony Grand WEGA KDP-57XBR2 57" Rear...

1 Answer

Thin red horizontal lines across screen


replace the focus block or try to adjust the screen control on the focus block for red only. this will affect the white balance of the set so adjust it carefully. the focus block is located on the front inside the set. remove the speaker cover then the 4 screws on the front plate. the focus block is 3" x 2" black box with 6 adjustment posts three for focus and three for screen. adjust only the affected screen (R).

Mar 13, 2008 | Sony Grand WEGA KDP-57XBR2 57" Rear...

1 Answer

Thin Red Lines on Top of Screen


Sorry, that is common for generic replacement xformers for
your make / model . There are some adjustments to minimize
the effect in servicer menu...............you can try turning down the
screen control a bit....................T.

Dec 21, 2007 | RCA F36650 36" TV

1 Answer

Dark image


Flyback transformers usually have 2 adjustable rods - 1 is for focus the other is for screen (G2) voltage. try turning Clockwise the Screen adjust with brightness-contrast at max. Till you see white diagonal lines, then go back until the lines disappear - then tune the brightness to your desired level.

Apr 27, 2007 | LG Flatron Ez T710BH 17" CRT Monitor

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

Related Topics:

151 people viewed this question

Ask a Question

Usually answered in minutes!

Top Televison & Video Experts

The Knight
The Knight

Level 3 Expert

73591 Answers

Cindy Wells

Level 3 Expert

5052 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...