- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
could be but this is not a extremely expensive set, Sometimes the tuner if bad has bad solder connections on the board INSIDE the tuner, most that do will react to being banged on with set on and signal hooked up, a replacement tuner if available would be rather costly, doe the set have audio/video input jacks on it?
There are actually two adjustment access holes (focus and contrast) on the back of that model. Here is a makeshift map...
On the back of the set mentally divide it to a left and right half. About the middle of the right half and around 4 or 5 inches up from the bench there will be two 1/8" holes. one on top of the other and about 2" apart. Slip a "pocket" sized flat head screwdriver into the lower hole and feel for the blade to enter the slot and gently turn either direction to adjust the contrast to your liking. The other hole above the "contrast" hole is for "focus" and really should be left alone.
The entire back cover can be removed by taking the four screws out of the corners and slipping it off. Then you can actually see the adjustment controls if you find getting that little screwdriver into the hole would be easier with it's clothes off...
These procedures are from the owners manual, go into menu and then picture quality and then:
The Convergence feature lets you adjust the TV’s three tubes. When the TV tubes’
images are precisely aligned, they create the color images you see on the screen.
Over time, the picture can drift out of alignment (this is normal). If your picture
seems fuzzy or has a yellow tint, using Convergence could correct this
misalignment. Only one convergence is needed for all inputs, regardless of the
Note: Make sure the TV has been on for at least 30 minutes (TV needs to
warm up for best results) before starting Auto Converge or Red/Blue
When you select the Convergence feature, a submenu appears with three options:
Auto Converge Automatically aligns the projection lenses to self-correct
color images. You’ll see flashing squares of color dance across the screen
(this is normal).
Note: After performing auto convergence, use the Blue Centering and
Red Centering menus to fine tune convergence in the center of the
screen, if necessary.
Blue Centering Aligns the blue and green images to fine-tune the picture.
Red Centering Aligns the red and green images to fine-tune the picture.
Note: The ability to change channels is disabled when adjusting the
convergence options. The TV must be tuned to a usable signal to
converge the picture.
You don't. A good "universal remote" available from Radio Shack (Phillips) for about $15 will provide access to all TV adjustments. Easy to program for all TV models, VCR's, DVD players, etc. About $35 + S&H for the Sharp remote replacement.
before putting unit into the service mode, check that customer adjustments are in the normal mode. use the reset function in the video adjust menu to ensure customer controls are in thier proper(reset)position.
2.service number selection
once in the service mode, press the channel up or channel down button on the remote transmitter or at the set . the service adjustment number will vary in increments of one,from "S01"~"S19" to "M05". select the item you wish to adjust.
3.data number selection
press the volume up or down button to adjust the data number.
to enter the service mode.
while pressing the vol-up and ch-up buttons at once, plug the ac cord into the wall socket and switch on the main power. now the TV set is switched on and enters the service mode. to exit the service mode, shut the television off by pressing the power button.
to enter the service mode . while pressing the vol-up and ch-up buttons at once, plug the AC cord into the wall socket and switch on the main power . now the TV set is switched on and enters the service mode. to exit the service mode, shut the television off by pressing the power button.