Question about RCA Standard (CRT) Televisions

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No Picture I have sound on all stations but no picture. I know the tube is not out because the menu comes up in full color. Please help.

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CHECK THE VIDEO OUT AND THE COMPONENT THAT GOES TO ABL

Posted on Sep 09, 2008

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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

1 Answer

Hi, I have bought an used Mistubishi CS-35405 TV a month back. The picture came in color for 1 week and after that the picture is coming in black and white. However the controls text like volume, menu and...


Hello Mr Kumar
According to you, there was colour displaying on your TV, and it has gone for now. It is now displaying picture in pure black/white also. Since black/white, picture is Ok, there is no problem to your picture tube. It now doesn't get chroma signals. That is the problem.
There are many reasons for this fault. The first one is related to Its RF stage, that is Video IF and Tuner stage. Since picture is correct in bl/wh, tuner has no problem. Your TV has PIP functions also. You just do this one first. Tune to a station with manual tuning, and advance the tuning process till the station goes out, and try to see, at any point during this process, you gets colour or not. If you get colour in this way, your TVs tuner has some problem. Before doing this keep the antenna corectly. If antenna is not in correct position this type of fault will occur. If these two won't help, the problem may be to its Chroma IC. If so this Ic should be replaced. You just do these things first and inform me about the progress through Fixya. I've its schematic diagram and can give you the number of Ics used in different stages. But I can do it only through Fixya. I can't send it to you diretly, since it is against our terms and conditions. Since the TV is a used one we don't know its present condition also.OK.

Oct 29, 2010 | Mitsubishi CS-35405 TV

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I have a Sony Trinitron 32" tv. When I turn it on, it has started taking longer and longer for the picture to come on. Sound is fine. Now once the tv is on for a while, the picture goes black for...


Yes.... u must adjust the screen voltage going to picture tube....located on the CRT module>>>little board connected directly to picture tube (take back off TV and you will see ) play around with screen control on the CRT module......can be adjusted at times to keep from losing picture!!! tube is bad...i know sure looks good when showing a picture....TRY adjusting screen voltage ( YES while TV is ON>>>CAREFULL ) gl

May 19, 2010 | Sony FD Trinitron WEGA KV-32FS100 32" TV

2 Answers

Tv keeps turning itself off and the white in the picture looks alittle off.


To get the right colors, especially a plain white, requires the right mix of red, green and blue from the picture tube. Sony TV sets have a circuit called AKB that automatically keeps the picture tube balanced by adjusting the signals to it. If that balance can't be achieved it shuts off the picture. This may due to tube aging so one of the color guns is too weak to adjust, or failure of parts in the AKB circuit itself. If the sound stays on and the power light starts blinking when the picture goes off, this is likely why.

On the other hand, if the set is turning off completely with no picture, sound or power light, the set may have power supply problems or defective parts in the picture tube high voltage circuits.

Since there are several possible causes, this set needs to be checked by a technician who can diagnose the problem and decide what needs to be done. It's not a simple thing I can point to and say "change this part". If the picture tube is the cause, it's better to replace the set. Otherwise get an estimate, then decide whether to fix or replace.

Apr 04, 2010 | Sony FD Trinitron WEGA KV-36HS20 36" TV

1 Answer

My tv won't come on


the picture tube did not go
this could have been the flyback transformer and or some components, but the tv will need to be tested to determine what has cause the tv not to come on

Oct 15, 2008 | Sony KV-36XBR400 36" TV

2 Answers

No picture, sound ok


Rca has been known to have bad solder joints in the deflection circuits. Usually around the flyback and transformers.. check it over real good. Just be careful as you can still get shocked after the powers removed the capacitors and picture tube will hold a charge in them.

Jan 21, 2008 | RCA F36649 36" TV

1 Answer

Sony 27XBR45 picture blue at first and then later goes to color


Sounds more like bad blue gun in CRT. A tv shop with a
good quality pix tube checker / rejuvenator may give some
temporary help......................T.

Please rate this solution..........

Oct 29, 2007 | Sony KV-27XBR45 27" TV

3 Answers

Picture color


have JVC AV-32F702 TV. It's picture color is very red. unable to adjust colors through menu. Channel numbers are also in red now instead of normal green. any suggestion? please check red color cathode circuit 1 check red output from ic to red cathode ckt 2 check voltage on r output ckt& ic or tr. 3 check loose contact in red cathode ckt 4 check crt base for loose. 5 loose connector 6 chroma ic thanks

Sep 09, 2007 | JVC AV-32F702 32" TV

3 Answers

Picture is VERY dark...


zenith have many problems with crt (picture tube) they comes be short or one or more canon fail, there are nothing to do, replace the picture tube, and thats a lot of money for an old tv...good luck ps adjusting the screen and resoldering the picture tube card could help but remember there are many dangerous circuit in a tv...

Aug 10, 2006 | Zenith C27A24T 27" TV

1 Answer

Color on the T.V. i think is gone


Ok what we need to do here is determine if the picture tube is still good or not??.. If you turn the tv to a station thats has a brighter scene and turn off the color what does the pic look like ??is it Black and white or a certain color overall on the screen??

Apr 02, 2006 | Hitachi 36FX48B 36" TV

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