Sony trinitron turns off and blinks 5 times repeatedly then process repeats. what does this mean

Hello

There is some fault in the [AKB] circuit section inside the circut board of your TV. To rectify it, you have to open your TV, and check the video output section. It can be located at the picture tube base card

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.

Turn it slightly counterclockwise, not too much,just one point.