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Re: TV has fuzzy piture, all colors, but contrast is...
I think you'd have to look at how much a comparable set would cost. I know that flat screen sets are coming down in price.
One thing you could try is to adjust the focus control although if it just went all of a sudden, then this may not help. There are two controls on the flyback transformer. Follow the thick red wire from the top of the picture tube down to the transformer that it's connected to on the circuit board. There will be two controls, the upper one being focus (marked with an "f" or the word focus). Try adjusting this while watching the picture. A mirror may be helpful. At the same time, be very careful what you touch in there, any metal part could have high voltage on it. As long as you are just touching plastic parts you should be ok. A good rule of thumb is to keep one hand behind your back as you work so as you don't inadvertantly ground yourself to the chassis while touching something with a high voltage on it.
If this scares you a little perhaps it's worth taking the set to a shop for an estimate.
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The problem was caused by poor projector alignment. Alignment was off because we recently moved the TV from a friends house.
This particular set allowed me to realign the projectors with the remote control from a setting in the TV's menu. It was as simple as opening the menu item then aligning the cross-hairs with the remotes cursor. There are 3 projectors, one for each color. One is fixed and the other two are movable. They need to be perfectly aimed in order to get a clear, properly colored image.
When you find yourself with an electronic device and no operators manual it pays to spend the time and effort to download it from the internet.
I've seen this on many computer CRTs as they age past 6 years. I would imagine that the gun alignment is out. Are all the colors (RGB) fuzzy, or is it hard to tell?
1. Sometimes, extreme settings of contrast or color (usually to offset low output from aging CRT) can appear to unfocus your screen. Adjust color/contrast down if they are maxed out or close to highest setting/pot level.
2. A very likely culprit is unshielded speakers are too close to the screen. If this is the cause, the speakers' magnets distort the part of the screen closest to them (sides), and it will get better/worse as you move the speakers away/closer to the TV. If there are not magnets near the TV, and degauss function does not fix problem ('89 TVs have degauss?), see #3.
3. The focus can be set by adjusting the flyback transformer. As an experienced electrician, you should know about the dangers of messing with the insides of the unit.
If this fails, you might have other bigger issues. I'd suggest a nice trip to lead reclaimer if so. I'd say 19 years is quite a life for a CRT.
Hopefully someone on here has a manual and can tell you exactly where the tint controls are. Also need to try adjusting the color level, turn it clear down so you have a black and white picture.
Is the picture still green over the screen with the color control
set clear down to black and white? If it does, you might
have an issue with the green gun going out or problem in the
circuitry to it.
By the way, the best way to adjust the picture settings on a
tv are to first turn the color control clear down, then adjust
brightness and contrast for best black and white picture, then
bring up the color level to where it should be and adjust the
tint for best red/green ratio.
If you feel good about opening your set then you can try this: Look for the flyback (high voltage) transformer, with the thick red wire which goes to the top of the picture tube. There are 2 controls on the flyback transformer, focus (top) and screen (bottom)Turn the brightness and contrast all the way down and then increase the screen control until you see retrace lines, and then back it down until those lines just vanish. Return the brightness and contrast to normal and adjust the focus control, if necessary, for a nice sharp picture. Let me know if that brings your brightness back.
This RCA set uses the CTC187BD chassis. Look on the back of the set and to the right of the cable connector you will see 2 controls sticking out, one on top of the other. The top control is for focus and the bottom one is screen, or overall brightness. If these controls have been turned clockwise then you will have a bright, fuzzy picture with white lines (retrace lines) through it. Tune in a channel with white letters on the screen and turn the top (focus) control until the letters are crisp and sharp. Go into the menu and turn the contrast and brightness all the way down, and then turn the bottom control (screen) until you can just see the picture, just above the point where the picture is too dark to see. Go back into the menu and reset the contrast and brightness and the picture will be back to perfect.
YOUR tv DEVELOP a problem in the video ocillator or the tunner section have this set check by a qualified tech.to solve your problem good luck.any more contact firstname.lastname@example.org i hope by now you have gotten your set fixed the repairs will cost you about between $50.00.to $200.00 good luck.