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Either screen or ccd sensor faulty. T establish which see if you can can normal playback : if the immage looks ok in playback mode it is the CCD sensor. Either way camera has to go to your agent or qualified repairer.
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HI.usually when problems occurs without picture, either slanted picture has vertical or horizontal light on it.The one responsible for this is what we called ..PICTURE-TUBE.It is a cathode -ray tube in the television receiver that translates the received signal into a picture on a luminescent screen.It is the picture tube who creates an image that is composed of identical horizontal lines.So any problems in regards to picture whether it only shows vertical or horizontal.its the PICTURE TUBE that was damaged.Hope this idea helps..Thank you for choosing fixya.
To answer your concern, all you have to do is to change the setting of your aspect ratio on your TV.
Here is my suggested way to procede:
1. Apply 1080i signal, which should produce an oversized HD image on ColorStream1or 2. 2. Select an HD channel that is broadcasting standard 4:3 image, not wide screen. 3. Switch to the Service Mode ( Please refer to the above links). In the Service mode, press channel up/down to find the Adjustment parameters needed for the following steps.
4. Adjust HIT with volume up/down control for the image height to 22.5 inches.
6. Adjust WID for image width of 30 inches, (22.5*4/3) 7. Adjust HPOS to center the image. 8. Adjust PARA and TRAP to minimize geometric distortion. 9. Switch into Convergence mode and Adjust VLIN to get equally spaced horizontal grid lines. 10. Measure the length of the central grid lines and note the number of horizontal and vertical grid lines. This information is used to create an overlay grid. 11. Create the overlay grid on 40x25 x0.003 inch clear Acetate sheet, which you can get at the Art Supply store for under $2. Draw the grid with a fine line erasable pen. Draw vertical and horizontal lines through the center of the sheet so that the lengths are the same as the central grid lines. Now draw the grid so that it has the same number of lines as the convergence grid but are equally spaced, with the outer ones at the ends of the central lines. 12. Cut off about 1/4 inch from the right side of the sheet so that the sheet can lay flat against the screen, which is slightly less than 40 inches. 13. Put a reference mark on the TV frame 2.5 inches down from the upper left side of the screen. 14. Place the overlay on the screen so that the upper edge lines up with the reference mark. The overlay sticks by electrostatic attraction. 15. Use convergence controls to remove grid distortion and converge grid colors. Refer to the Anamorphic link for details. 16. Enjoy 1080i.
Other Comments: I didn't realize I could create the overlay grid before placing the Acetate sheet on the TV screen, until I finished drawing the grid with the sheet placed on the screen. I added grid lines as called for in the procedure. I'm sure this method took much longer no only to draw the lines but some of them were difficult to see.
Part way through the convergence procedure, I became concerned that the image width was off since I did my screen adjustment with wide screen image. Thus, I decided to repeat that step with a 4:3 screen.
I confirmed the need to press 7 often to save results since after I adjusted one grid color without it, I accidentally hit a key that switched me out of convergence mode and when I switched back, all settings were gone.
Another mistake I made was not realizing that the cursor color determines which grid gets moved.
This is known problem of ccd imager chip failure in Canon A95 camera, ccd imager chip will be replaced to get clear picture. It was coincidence that problem occurred at same time when you did some settings but it is not setting problem. Canon offers free of cost ccd imager replacement. Click Canon CCD Imager Advisory for details.
Diana, did you ever find a solution? My Toshiba (same model) is about 2 years old and it started getting these 4 horizontal lines spaced pretty far apart and a double image at bottom. When I lightly tap the top of the TV, they went away. But now that is not working. Please let me know. Thanks. Jeff
Look for bad capacitors in the vertical deflection amp, and in the pin amp sections. This is common on most of these types of TV sets.
The caps tend to go high in ESR with age. It is best to use an ESR meter to find the bad caps. It will be a lot faster than workign out waveforms with a scope.
1.Are these lines only in the upper 1/3 rd portion of the screen?And is there a clear demarcation between this area and the lower portionb, where the image is perfect?
2.Or is thin Horizontal lines evenly spaced around an centimetre apart?
If it is the first case, then there si a problem with your TVs SMPS. It is not generating the required regulated 110V required for the TVs functioning.
If it is case 2, then there is a simple adjustment at the back - 'SCREEN'. This adjusts the Screen Grid Voltage, and by slightly lowering it, this problem will go away.
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