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The Blue CRT has shorted and shutting the set down. You can verify this by simply sliding the Blue CRT drive board off the neck without unplugging any of its wires, Just let it hang suspended and then try powering up the set. If the set stays on you will know the Blue CRT needs replacement.
To answer your question;
The 7 blinks code(sony error codes) means that the horizontal deflection has stopped.
The common cause for this are transistors Q8035,Q8038 and the horizontal output Q8024 all located on "D" board.
Hope this help and let me know if you need further assistance.
Hi, This is symptom of defective red picture tube in TV that needs to be replaced. Let me know if you want to replace it by yourself to provide you part number info or call tv tech to do the job. Thanks.
I had the same problem. i was told by one of these so-called experts @ fixya that my flyback transformer needed to be replaced (the 8 blinks on the standby was the indicator). but i recently replaced it and im having the same problem. sorry. no advice. good luck.
its the horizontal deflection has stopped the q5006 on the D board is broken or else ic 452 is faulty on the A board if you need to know where you can order these parts let me know and I will post a link also they offer free tec advice
7 blinks on a sony indicate that high voltage has exceeded 33K and the set is going into safety shut down. Check your Horizontal and rgulator circuits. Something in those circuits are causing the increased voltage.Hope this helps let me know if I can help you further.
If the TV will not turn on and the red light blinks on the front of the set, it means that the microprocessor has detected a problem in the set and shut the set down. It then blinks the red light a certain number of times, and the number of blinks is the code for why the set has shut off. How many times does the red light blink before repeating?