Won't turn on, but has power. Standby light blinks 7 times stops and then repeats
That was mean the high voltage shutdown, check the power supply regulator and the horizontal circuit if has shorted component.
SOURCE: Sony FD Trinitron Wega
The power supply board is failing. There are twi integrated circuits in the horizontal drive circuitry that have to be replaced. The original integrated circuits are the same type and you will see written on each..."MCZ3001D" and need to be replaced with Sony # 670581001 or the "D" board with those parts on it needs to be replaced. The cost of the entire board is high-about $375.
SOURCE: Sony Wega 40" TV will not turn on, standby light blinks 6 times repeatedly
Hello,For model KV-40XBR800,
Pls check following area.
Low HV Shutdown:
On the D Board.
Check IC8004/pin 7 should be 7.4v.
Check IC8006/pin 2 should be 2.5v if lower will trigger shutdown by causing pin 1 to turn on.
Check IC8006/pin 3 reference voltage 2.2v.
IC8006/pin 1 normally at 0v. If high
turns D5007 ON which turns the latch circuit Q6532,
Q6530, and Q6527 ON and turns the AC relay RY6501 OFF.
And NOTE: 6 blinks also can be Low B+ protection.
Unregulated 7.5 v from the power supply to 5v reg IC504 on the A Board. 5v to M Board Q2314
to CPU IC2300/pin 43. If 5v missing set will shutdown with 6 blinks.
Good Luck
Dals123
SOURCE: Sony FD Trinitron WEGA KV-32HS500 32
we have the same porblem. We just unplug ours and wait a couple of weeks while watching another tv plug and un plug it will eventually come on then we dont turn it off again it only goes off if the power goes off.
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