Question about Projection Televisions

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My tv has this lines that bend over the front top of the screen and when an object moves through the lines the image appers from the the top of where the line begins...and the tv goes black every once and a while

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This sounds like a vertical deflection fault. There are some components that are failing in the vertical deflection area that are starting to fail. It is very common in many of the sets that there are electrolytic capacitors in the vertical amp section that are gong out of specifications.

When you have at the top or the bottom of the screen where the vertical axis is compressed, and the picture in the compressed area looks like it is inverted and going over on itself, this is called "vertical fold-over".

An experienced TV service technician should be able to service this for you.


Jerry G.

Posted on Apr 19, 2008

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What causes the picture to bend and get blury where its bend is at which is usally on the top of the screen and the bottom of the screens


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 over.


You can find more details and solutions here on Fixya at the following link below. Or click HERE

3d884ac.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Oct 28, 2010 | Mitsubishi WS-55613 55" Rear Projection...

1 Answer

Three coloured lines appered on the screen - no picture


If there is no picture and 3 vertical lines in the center of the screen, stop. Turn off TV. You have no horizontal deflection happening. Lines will burn into crts and be permanently visible after repair.

No horizontal deflection is caused by Horizontal sweep circuit failure, maybe flyback transformer and associated components. More than a simple do-it-yourself repair.

easyab

Apr 22, 2010 | RCA D52W20 52" Rear Projection HDTV-Ready...

2 Answers

Convergence on top of screen and 3D bended lines (yellow & pink lines).


Hi,
It is failure of convergence out ICs causing 3-D type picture on screen, you need to replace two big ICs in convergence section on main board.
Click Part Store to see an image of IC as well as price info.

If you need service manual of 43FWX20B, let me know to provide you a copy.
Thanks.

Apr 25, 2009 | Hitachi 43FWX20B 43" Rear Projection...

1 Answer

3 year old rca rear projection just started going blurry. green blue and red line across the top of screen. objects have shadow.


Focus and screen control box / remove front bottom panel there you will find it / it has 3 controls on top 3 on bottom top are focus for RGB tubes bottom controls adjust screen drives for RGB.

Jan 25, 2009 | RCA D52W23 52" HDTV CRT TV

1 Answer

Projection lights don't line up


Projection TV sets have several common problems listed below.

Problem #1) Convergence

Symptoms:

  • Screen Looks 3-D
  • Colors wont align
  • Screen may look distorted
  • No Audio/Video - makes a chirping sound.
Example Photo:
5f6e85c.jpg
Problem #2 CRT Fluid has clouded over.

Symptoms


  • Dull Video, Washed out
  • White/Bright looking video
  • Halos around objects
  • Red/Orange looking
Example Photo:
ee1ca68.jpg

You can see more examples and find a fix here...

bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Jan 04, 2009 | Hitachi 53SBX59B 53" Rear Projection...

1 Answer

The screen image is distorted with flashing green lines across the entire screen. If I unplug the TV and then plug it back it the normal screen returns temporarily


hi ive got a samsung SP24Q2HL rear projetion tv
it appers not to recive signal and only has distorted screen with green lines it sometimes works but very unreliable
please help

thanks luke

May 16, 2008 | Samsung Projection Televisions

1 Answer

Moved the tv and now have a line on bar in top half with bend to it?


sounds like solder on convergence amps has hairline crack's

needs resoldering...

Oct 19, 2007 | Toshiba 51H84 51" Rear Projection...

1 Answer

Enquiry


Does the screen seem like it's stretched top to bottom? Or does it have a wave like appearance when the object moves on set? Either way some resistance has changed. You may look at board and see a chardd or burnt spot near a resistor. You shoud have value checked and replaced. Also look for any caps out of line or distorted.

Apr 13, 2007 | JVC AV-48WP30 48" Rear Projection...

3 Answers

Concave Images with pink and green colors


you can get it your tv fix the problem is in the IF amp and video circuit.a convergence will also be neeeded.the tv is old but can give you some more life call a tech they will be your tv doc.

Apr 03, 2007 | Sony KP-57HW40 57" Rear Projection...

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