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I have a Sony kv-40xbr800. The standby light flashes 6-7 times and does not turn on. If left off for a couple of day, it may turn on. Is there an easy fix?

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SIX Blinks---No Horizontal (H STOP), no raster, goes to the blinking selfdiagnosis
function immediately. Check C515 & 516 and the jungle IC, IC206.

SEVEN Blinks---High voltage shutdown. The high voltage has exceeded 33k
and the unit goes immediately into safety shutdown. Check power supply
regulation and horizontal circuits.

Posted on Jun 13, 2010

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Sony kv-40xbr800 stand by light flashing no picture


How many times do this standby light flashes? These flashes are fault indication, called blinking codes. From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit stage inside the TV. Count the number of flashes. If you wish to get more detail about these blinking codes to Sony TVs, check the site linked here. http://electronicshelponline.blogspot.com/
Pull up previous posts by its left sidebar, or type in the brand name and model number to of your set, to its search box, and press 'Enter' or view it in Mosaic / Timeslide option.

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Sony kv-40xbr800 standby light blinking no picture


Check this site to get more details about the blinking codes to Sony TVs.http://electronicshelponline.blogspot.com/ Pull up previous posts by its left sidebar, or type in the brand name and model number to of your set, to its search box, and press 'Enter' or view it in Mosaic / Timeslide option.

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Power supply. Disassemble and be careful tv is not plugged in. Check capacitors on power supply for bulges on top. Replace but make sure u deenergize before removal by touching the two poles together. I use a small nail file

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there is a problem on the power supply section of your tv.try to check the regulators horizontal output,and bad capacitors.

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sony kv-40xbr800.......doesn't turn on......standby light blinks 6 times....what might be the problem?....is it worth fixing?

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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

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1 Answer

Sony kv-30xbr910 my tv won't turn on and the standby fashes 7 times


Good day.
Your unit has issues with the high voltage section. Particularly the vertical and horizontal sections. Blinking lights indicates that your flyback is not osscilating to distribute the supply to the sections. Please have it checked by a repaiman.

chris

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1 Answer

Sony KV-40XBR800


You have the famous regulator problem, or the bad regulator problem, or the cold solder connectioin is on or around the flyback transformer.

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