Question about RCA 20F530T 20" TV

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If, when you turn down the color control all the way you have a black and red picture, then your picture tube is most likely weak and it's time to replace the set. If the black and white picture is normal, then the set could have a problem in the chroma circuit. Either way, it would not likely be worth repairing.

Posted on Dec 16, 2006

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F31672et rca tv

Is this a projection/plasma/CRT?

Oct 03, 2008 | RCA F31672ET TV

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1) I have a Sony KV-32FS13 that has a green tint in the picture. Does any oneknow how to access the service menu for this model? I tried other adjustments and I can't get rid of the annoying green...

Code 5 is "AKB error". AKB, or auto kine bias, is a cicuit that monitors the three color guns of the picture tube (red, green and blue) and tries to adjust them for proper color balance. If it can't, the picture is blanked (usually) and the timer/standby light blinks 5 times. When the color drives aren't balanced, you see a color tint in the picture like you're describing.

There might be a problem in the AKB circuit, or the picture tube may just be old enough that the AKB circuit has run out of adjustment range. If the tube is at fault, you should consider replacing the set. A new tube will cost nearly as much as a new 32-inch LCD TV, and you'll need to pay someone to install it and set it up. There are special tools required to perform the convergence which gets the color guns aligned with the face of the tube so they hit the right colors.

If you'd like to try tinkering with the service menu adjustments, this site explains how to access the menu and gives a list of settings.

Jan 02, 2011 | Sony KV-32FS13 TV

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The picture has a green tint to it on all channels

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.

Apr 17, 2010 | Sony FD Trinitron WEGA KV-27FS100 27" TV

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50 inch samsung tv has red tint n dis colored


please try to reset the color settings then hit the tint color adjustment, if nothing change, you have a problem with the RGB Section that is need to replace some small parts!


Jan 14, 2009 | Samsung DLP HL-P5663W 56" TV

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Red tint to the picture

well it could be your color or tint or could be your picture tube needs replaced

Dec 12, 2008 | Mitsubishi Standard (CRT) Televisions

1 Answer

No red tint on TV screen

check the CRT section if there are resistor open,transistor drive of red color is leak,resold the red section of the CRT.

Sep 06, 2008 | Standard (CRT) Televisions

1 Answer

Color sudden change

Good day.
Your unit is still worth. It may be a caused of loose contacts along the circuitry. It can be remedied by resoldering the terminals particularly the chroma section and the crt circuit.


Mar 25, 2008 | Toshiba 36A61 36" TV

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Blurry Images

Hello paulaspec,

You have a problem with the three factors, and they are screen voltage, focus voltage, and control (focus 2) voltage. Basically these voltages have to be adjusted since the components in this section have aged some. These controls are usually located in the television on the IHVT (Integrated High Voltage Transformer) or as it is also called the flyback transformer. these controls must be adjusted together, along with the color controls. Here is how the adjustment is done (You will need a schematic diagram, a DC volt meter, and a color bar generator to do these measurments):


1) turn color and tint fully counter clockwise until you have a black and white picture.


2) connect the color bar generator to the TV (ch 3) and turn it on, you should see bars in various shades of gray


3) adjust as best as possible the color and tint controls to obtain the color bars on the screen Red Green Blue.


4) measure the voltages on the focus, screen and control grids of the CRT and match them to the schematic digram measurements.


5) adjust the focus screen and control grids to match the ones on the schematic diagram


6) once this is done then you adjust the color controls once again to obtain the red green and blue bars on the TV screen.


This should help if the CRT (picture tube) electron guns are still good and if the flyback transformer voltage supply is working.


However if you do not have a background in electronics please take the TV to a shop for repairs.


I hope this helps,

Thank you,


Oct 16, 2007 | Sony KV-20M20 20" TV

2 Answers

Sanyo Tv color problem

I would check the green signal all the wat to the display screen to determine is this is a signal problem or a system short. I would recommend that you take this set to a qualified electronics technician

Sep 10, 2007 | Sanyo DS27910 27" TV

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