Question about Sony KP-53HS10 TV

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Akb error signal produced and TV goes to shut-down state

Wow, you know your stuff!

"AKB is White-Balance signal and it is not proper or maintained in your TV. So error signal produced and TV goes to shut-down state."

Is this something I can fix by resetting something?

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Yes mate, you can fix it if you know basic know-how in electronics. pls confirm to get further help as projection TV has high voltage risk inside and I want your safty 1st.

Posted on Aug 14, 2008

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2 Answers

I have a sony trinitron kv36fs210, no sound no picture, stand by light blinks 5 times, tried unpluging for 24 hours, same problem. google searched problem,results found akb circuit problem, im not a tv...


It seems to be a problem to the power supply unit. I would suggest you have a look at the circuit board and look for capacitors that could have a popped up head. If you notice any, replacing it would solve your problem. I had the exact issue with my tv and fixed it that way. If you have any question please do not hesitate to ask, good luck.

Aug 30, 2011 | Sony FD Trinitron WEGA KV-36FS120 36" TV

5 Answers

Shuts off intermittently


hi!!!!

try to check the power button
may clean could fix
try to open it use tools then unscrew
then check the power supply if it is ok
or replaced the power supply

Sep 25, 2008 | Sony KV-32HS20 32" TV

1 Answer

I have a sony trinitron kd32dx4ou the picture is a bit dull and hard to make out plus the led light flashes 5 times in a row. what does this mean and how can it be fixed


That will be cased by a weak tube. The AKB circuitry is not working properly as it has to reach beyond its tollerance.
The tube is not tracking properly and the circuitry cannot acheive an acceptable colour balance.

Feb 15, 2011 | Sony FD Trinitron WEGA KV-34HS420 34" TV

1 Answer

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

The tv is at least 17 years old.The blinking red light blinks 5 times ,then the tv picture goes off . The voice is still on


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.

Jan 01, 2011 | Sony FD Trinitron WEGA KV-27FS120 27" 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

Sony trinitron xbr screen periodically goes black. The audio stays on but the video cuts out.


Sony sets have several protective circuits that blank the screen if something happens that might damage the picture tube. One of the more common causes is trouble in the vertical output circuit. Given the age of your TV (the XBR models have been around a while), this might also be a symptom of a picture tube starting to fail. Most of these sets have circuitry (called AKB) that adjusts the color drive signals to the picture tube to keep them balanced. If one of the colors is enough out of range the screen will blank. It might be the tube itself, or failure of some part in that AKB circuit. The set might also have defective parts in the input switching or video processing stages.

Unfortunately, I can't suggest any place you might look if you want to try repairing this on your own. This kind of trouble usually needs to be diagnosed and repaired by a professional TV technician who has the service information to track it down.

Hope this has been helpful. Thanks for using Fixya!

Feb 20, 2010 | Sony FD Trinitron WEGA KD-36FS130 36" TV

1 Answer

Sony Wega Kv-36XBR250 screen blinking


I have seen this flashing before, this could be an indication that the picture tube is weak, what happens is that if the white balance is off there is a circuit called akb it monitors the kathode of each gun and if they are not in balance it will attempt to balance it out. if it can't the picture will begin to flash, sometimes in some models the power light will blink 5 times. On some models the power light will only flash if the tv gives up trying to compinsate for white balance and shuts off compeletely. If you see the tv shutting off with 5 blinks then you know for sure it is time for a new set.

Sep 02, 2009 | Sony FD Trinitron WEGA KV-20FS120 20" TV

1 Answer

No power


FIVE Blinks---AKB circuit (AKB), the timer/standby indicator blinks for about 30 seconds then goes to the self-diagnosis function. Something is wrong with the video. Check video out, Q705, 732, 761 and other components on the C board, also check Q218, 219, 220 on the A board. Also unit be in IK blanking, try turning up screen slight

Jun 12, 2009 | Sony FD Trinitron WEGA KV-32FS120 32" TV

1 Answer

'standby' mode and akb error number


AKB 66 in self diagnostic test means...TV goes to standby (shut-off) for AKB problem 66 times. AKB is White-Balance signal and it is not proper or maintained in your TV. So error signal produced and TV goes to shut-down state.
Regardnig Standby button, its available on remote only. If you push TV Power switch, TV will switch ON, push it again to OFF TV. Power Button on remote set TV in standby status and you dont need to push power button of TV itself.

Aug 14, 2008 | Sony KP-53HS10 TV

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