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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 standby light should be blinking in a repeated pattern. Count the blinks and report that number here. This will indicate the circuit that is defective and will allow us to provide a repair suggestion.
I have a Sony SRS BBE Trinitron (WEGA). The last few days when I tried to turn it on using the remote the Red Light would go on but the TV did not turn on. I would have to press the power button again to turn it on.. I tought the remote battery was just low.
Today when I tried to turn it on nothing is happening and the Red Light is blinking 9 times ??? I tried to unplug it and try it again, still does the same thing ???
So, This was the result of 5 times led blinking.I would suggest you to please contact any expert or strongly recommend to contact any SONY SERVICE CENTRE for repair because it's not an easy job to rectify this problem. Hope you better understand my sayings.
The standby light should be blinking in a pattern. Count,pause,count... Please post the count and that will indicate the circuit in which a problem was detected. That will allow me to give you details and possible solutions.
Led blinking Three times means B+ over voltage protection (OVP), unit goes to the standby mode then displays the 3 blink fault. This is also a problem in the power supply circuit, check T603 and R672.
If you have electronic knowledge you may be able to fix it. Let me know if I could help you further. Hope this helps.