I have a four year old Sony Trinitron 32 inch...
Within the last two days, the picture will posterize with wonderfully brilliant colors of red, green, purple and other colors.
The surges can last from 10 to 30 seconds and then the picture stablizes again. However, in the corners, where there's a logo, I can still see a color hue where it appears the color is off...
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Re: Intermitant color bursts of red, green, purple
for the color problem,most likely you do have problem with loose contact of components from C-board ( small board connected at the back of CRT "picture tube" which drives every color and size of the screen)if you have knowledge with soldering electronic component parts, resolder this board and also check main board for possible loose contact.
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Five blinks is the error code for an AKB (auto kine bias) error. What this means is that the set isn't able to balance the three color guns (red, green and blue) of the picture tube properly, and it's blanking out the screen.
To get the proper colors, the signals for the three colors need to be balanced, and Sony sets have circuitry to do this automatically. Other brands don't, and when they go out of balance you see a picture that starts to show tinting or colors that are off. As the picture tube ages, it gets harder to adjust the balance until finally the AKB circuit can't anymore, and poof, the picture goes away. With a 17-year-old tube, it's not surprising.
There isn't anything that can be done to fix the picture tube, it would need to be replaced. But the cost of the tube and the work required to get it set up after installation makes it completely uneconomical to repair this TV. A new picture tube is nearly $200. Then special tools are required to
set the tube up (a process called convergence), so you'd need to find
someone to put it in, and possibly pay to have the old one disposed of. A new 32-inch LCD set is around $350 now. Treat yourself to a new one.
The color signal consists of Red, Green and Blue. Those three colors, at various degrees, make all the other colors on your screen.
If you have a BRIGHT green screen it's best you don't operate your set. If it's just tinted green then there is a problem on the CRT (Cathode Ray Tube) drive board. Do check your "tint" setting and see if someone misadjusted it. If that isn't it then you need to have your set on an electronics bench and get an estimate for repair.
For the last week my TV has been going to a black screen for 10 seconds or so then the picture returns. It has been continual. Last night it stopped going to black screen, but now the standby light flashes 5 consecutive times and the color went haywire. A lot of red and everything that is suppose to be black is green.
I did a soft and hard reset with no success. What's wrong and is it worth fixing? Bought new in November 2002.
Chuck the TV - probably
It depends on the repair facilities available where you live.
In big urban areas the cost of staffing a repair shop is such it can cost nearly as much per hour just to look at an item is it does to buy the next one-plus you get all the latest features.
Switch OFF TV. Open rear Cover. Switch ON the TV. Now, very carefully, (There are very High and Dangerous voltages inside, also, use a mirror to see the screen) adjust a red colored box called "H.STAT" which controls the Horizontal Convergence of the CPT. Should solve your problem. Check some Vertical portion of a object (Text in some Video Title, wall of a building, etc, ) as a reference.