Question about Sony Televison & Video
The power supply is most likely faulty due to faulty, burned, or overheated internal capacitors. Newer capacitors are made cheaper and due go out.
You can test power coming from power supply leading to main board. It should be about 12-13.5 volts. Anything lower or much higher would indicate faulty power supply
Posted on Sep 30, 2009
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Posted on Jan 02, 2017
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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 A2 slightly.
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