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(1) Adjusting the brightness and seeing that video is present (just black)
(2) The TV's menu system is visible on screen even though no images are
(3) Your particular SHARP model supports picture in picture mode
Then I suspect that the problem is your TV's picture-in-picture sub-board. All external video sources & the internal tuners must pass through this board before being processed and displayed on the picture tube (even when PIP is not enabled). As far as I am aware SHARP does not provide this board as a spare part anymore, but they can be repaired at the component level if the failed component is a generally available device.
are standard definition video sources. Number of lines output is 576
lines, whereas your HD TV set has 720 or 1080 lines. This difference
may result in a poorer image. However some DVD players are able to
“upscale” picture to obtain a very good picture. Check if your DVD
player has the following connectors: YUV, DVI or HDMI. For more
information, refer to the instruction manual of your DVD player.
Some HDMI or DVI featured
DVD players also have an internal processor that can upscale pictures
from a DVD to 720 or 1080 lines to provide an excellent picture from a
standard definition disc to your HD TV set. Those settings are
available from the setup menu of your DVD player. Please refer to the
instruction manual of your DVD player.
your DVD player does not have those connectors and only has a SCART
connector, or S-VIDEO, or composite, there is not much to do to improve
the picture quality. Just make sure that you are not using the cheapest
cables and that the picture settings of your TV set are correctly
Some high end TV
sets have a picture improvement engine that can soften a noisy image.
Make sure that it is activated from the setup menu of your TV set.
Please refer to the instruction manual of your TV set.
If people and objects have weird white outlines around them. This may
suggest that your TV sharpness is set too high. Make the correct
sharpness adjustments from the setup menu of your TV set.
Make sure you use good quality cables and that your cables are not too long (less than 5 meters long).
most likely scenario is that the coolant in the CRTs need replacement very common problem with phillips magnavox TVs, The picture will get hard to focus and the color will lose its intensity. You can get a coolant replacement kit for phillips at the following link under the repair kit category. The kit contains all the coolant needed and a CD with step by step instructions on how to do the repair. Heres the link. http://servicemanuals.vstore.ca/
the easiest way is to turn the color all the way down to zero. Then notice the overall color of the screen, if it doesnt appear as a good black and white picture you will have to adjust the screens. To do that you have to remove the speaker grill cover and the small access panel, then depending on the chassis you will see a small square with 6 dials on it 3 on top and 3 on the bottom it will have screen stamped on it. adjust those 3 untill your screen appears the best black and white picture as possible. Now if your chassis only has 3 dials on the sgaure control box those are focusdont adjust them. . then the 3 CRT boards will have the dials you need adjust those for the best black and white picture. when your satisfied that you have a good black and white picture. then turn your color back up and adjust the tint.Let me know if you need more assistance.
What you may have needed to do was adjust the
green & blue crt screens to match the red.
Go into your picture menu adjust, turn color
all the way down to a black & white px. Now
adjust each crt screen so that you end up with
a true black & white px. Then adjust each
focus control to get a sharp px, have your
tv on a channel like the home shopping
network so you can adjust each crt focus
one at a time for clarity by cover the other
2 up. Then go back into picure adjust & turn color ahlf way up, you should see a better
*The brightness control setting determines how bright your picture will be.
*The contrast control sets the gain of the video circuit. This determines the difference between dark and light scenes. Low contrast settings make the picture "hazy". High contrast settings make the picture more distinction between dark and light scenes.
*The sharpness control determine the frequency
response of the video circiut. High sharpness settings give better resolution but also shows
more noise in your picture. Lower sharpness settings smoothe out the picture removing noise but also fine detail. It needs to be set for the best all around picture.
*Picture Enhancement is pre-set adjustments which give you
different picture qualities. You just select the one you like.