Sony kv28dx30u: Sound comes on, but picture doesn't for a good ten minutes or so. The pilot light flashes red 5 times. persumably its an AKB problem. Is there a cure for it? Thanks.

1. Five blinks - AKB circuit (automatic kine bias), 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. In addition, unit could be in IK blanking, try turning up screen slightly.

The 5 blinks error code means that the lamp driver is faulty. How good are your electronics/soldering skills?

helloFive blinks - AKB circuit (automatic kine bias), 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. In addition, unit could be in IK blanking, try turning up screen slightly.

shaun

Ok, 5 times is an akb problem, and without red, this tells me one of three things are most likley wrong either the red tube is too weak to produce return current to the akb circuit, or you have a bad driver on the crt board or you have a defective focus block. There are several diagnostics that need to be done to determine which one is the cause, if you are un familure with electronic repair it could be a little hazardus to do, so i don;t recommend it unless you are aware of the issues. If you swap the neck modules with the blue tube, and the set looses blue then it is not the tube. and might be worth repairing. but again if you don't have experience it may not be a good idea for you to try this yourself.

KF60xbr800 standby light flashes 6
times

5 times flash code shows problem with AKB (white balance of CRT)
Please adjust RGB gain and screen volt of this TV.

When a Sony TV flashes five times, that means that there is an AKB circuit fault.
This means that there is something wrong with the video.
Try first unplugging power for few hours, if that does not work, call a technician, as several IC and components must be tested and eventually replaced.

This is a problem with the "AKB" circuit. There is a problem with the video signal. Are you comfortable changing parts inside the set? If so, please update this. I'll look up the specific parts for this model and post them.
Dan

When a Sony TV flashes five times, that means that there is an AKB circuit fault.
This means that there is something wrong with the video.
When you get this error, several IC and components concerning the video signal must be tested and eventually replaced.