Question about Panasonic PT-43LC14 43" Rear Projection HDTV

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Black block in center of the picture

I tried to go into - menu to remove the black block. I believe i hit a wrong adjustment key or something.

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Re: black block in center of the picture

Black block is called text box---turns on/off in cc (closed caption)

Posted on Oct 23, 2007

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My Model TV # is 51swx20B. Two days ago the picture started having a lot of green in it and no blue. What is the repair needed.

Do adjustments on focus block. Will have to open front panel access door, focus block blue will be on left, green will be on top. Top screen bottom focus. Turn clockwise to increase, counter clockwise to decrease brightness. Turn the color all the way down on menu where it's pure black and white and make adjustments for perfect black and white picture, then when you adjust color, it will be perfect.

Aug 09, 2011 | Hitachi 51SWX20B 51" Rear Projection...

3 Answers

Problem with the Toshiba 50H13 50 in. Rear Projection Television. Green tint

The tubes have aged and the colour balance between the tubes has shifted. You will need to redo it using a black/white test image: first the black (the cutoff point), then the white (the gain) on each tube - always start with the green colour. This is done on the final video amplifier of each tube by adjusting the corresponding semiadjustable resistors.

Jun 02, 2011 | Toshiba Projection Televisions

1 Answer

The picture suddenly went very dim. adjusted the black level up and it lightened it up but it is not crisp and you know something is wrong.

There is a registration setting that fixes this. Look around in the menus and you will find it. It may need it reset fairly often.

The menu item allows you to focus the settings for a great picture.

Apr 27, 2011 | Pioneer PRO-620HD 58" Rear Projection...

1 Answer

The picture has a red color

You need to First turn Color Off In the Menu then, Find the Screen and Focus Control Block
adjust the Red/Green/Blue Screen drives To a Black and White Picture, Then Go Back to Menu -Color and turn Color Back on.
Remove the Front Bottom Panel and Control Block is behind it. It will have 3 controls on top for Focus and 3 under them for Screen Drive to each Tube R/G/B

Jan 25, 2011 | Hitachi 57F500 57" Rear Projection...

1 Answer

I have a Sony, 54" Projection Screen HDTV that I bought in 2002. I believe it is a 1080i. When I am waatching TV, I notice that when the screen is mostly black, for instance a night scene, the black areas...

Confirm the actual model number as the one indicated in the title is not HD.

Some of these sets had bad picture tubes that on a black screen or blank video input may in your case show faint curved lines and or some color (red,green or blue) present in the background.

If this is the case there is a fairly simple way to attempt to adjust something for this--not in the customer menu but fairly easy to get at and try.

Most of these sets were KP51ws500, 57500 etc.


May 11, 2010 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

I recently bought a Sony KP-53HS30 rear video TV

Hello Sarah!
There is no bulb to replace in your TV. Image is created by three CRT's and you don't want to replace them, just trust me on that one. It could cost you up to $1800 to do that.
All you can do is to clean lenses of those CRT's. You have to disconnect TV from the power outlet and remove rear cover. Using very soft brush and vacuum cleaner remove dust from Red, Green and Blue CRT lenses. Do not use solutions unless you got something special for optics. Solutions will leave film on the surfaces. That would improve brightness and contrast of image.
To adjust focus front grille have to be removed. Than central piece cover held by 5 screws. Behind it you can locate black plastic "box" size little smaller than cigarette pack. there are 6 adjustment "screws". Three of them are "screen". You don't touch those. Another three "focus" there is one for each color. Turn TV on. Hit "menu" button. And adjust focus for each color separately. If menu goes away hit it again.
This is the only improvements you can do.
Everything else will involve humongous amounts of cash.
Good luck!

Apr 04, 2010 | Sony KP-53HS30 53" Rear Projection...

1 Answer

The colour on my TV is a reddish colour. Have tried the colour adjustment. Skin colours in particular.

simple. easy. you have 3 screen adjustments. red green blue. turn color all the way down. you should then get just a black and white picture, but in your case, it will still be reddish. behind the speaker grill is an access panel for screen adjustment. remove speaker grill. remove access panel. you will see a block assembly roughly 6 inches square with 6 knobs on it. 3 are for screen, 3 are for focus. adjust until you have a black and white picture. then go into menu and turn your color back up. enjoy!

Nov 14, 2009 | Projection Televisions

1 Answer

My tv needs readjusted (color,focus,etc.)Is there an easy way to do so myself? i got a 1986 45'' RCA projection started of with just a blury spot across the top but after i messed with it the whole...

First pull back Look for screen and focus block you will have 3 controls ontop for focus and 3 controls below for adjusting screen drive to each Tube R/G/B
turn color off on Menu NOW try to Adjust the red,greenand blue screen drives as close asyou can to a Black and White picture then turn Color back on in Menu also adjust Focus for each Tube Be sure to Clean Top of Tube Lenses of dust&dirt Just in case Post me your Model and Chassis Number it will be on back of TV some RCA Focus&screen drive Block maybe in front of TV if so remove front bottom panel their you will see control box.

Nov 10, 2009 | Projection Televisions

1 Answer

Red horizontal curvy lines

You need to turn the voltage on the red tube down slightly, also you would need to adjust focus to compensate for the lower voltage to the red tube. On the left and right bottom side of speaker cover are two round covers, take them out and there are 2 1/4" hex screws take them out carefully take cover off, there is another service cover same hex screws remove. You will see the focus block on the right side, tubes are labled on block. 2 knobs for each tube. Make voltage adjustments while tv is on a black screen, then for focus, turn color all the way off in the menu, and adjust focus until it looks right in black and white. These adjustments should only be very small; if alot of adjustment is needed, you may have other issues.

May 29, 2009 | Sony KP-51WS500 51" Rear Projection...

1 Answer

46 inch rear projection tv bulb replacement model number 46gw944

1) In customer menu, adjust all video controls to center,then
increase "picture" to 3/4
2)Locate focus/screen adjust block above chassis...adjust
RGB screen controls for best mixture = B/W tracking..
Check with customer color level at minimum..should look gray.
If you turn screen controls up too much,you will see faint
re-trace lines in picture.....once B/W looks good,put color level
back to middle...................................................T.

Feb 05, 2008 | Projection Televisions

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