Question about Sony FD Trinitron WEGA XBRKV-40XBR800 40" TV

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My sony kv-40xbr800 blinks 6 times, no video no audio, it wont turn on, whats going on?

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The problem is on the 'A' circuit board. It is the IC504.Or, it is a low voltage drop or a short. Replace the "A" board. It is the front board on your right when you are at the rear of the set when you remove the cover. Look it up on the net. PS Don't touch the chassis while it is on...HIGH VOLTAGE !!!

Posted on May 17, 2014

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Posted on Jan 02, 2017

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SOURCE: Sony kv-40xbr800 won't turn on, blinks 6 or 7 times

Toss the Sony set and purchase a Panasonic Plasma. I have the same set with the exact same problem. Was told by a local repair shop that the high voltage module was to blame and that it is obsolete. I called the Sony repair center and they confirmed that the module was obsolete, but they can repair it for between $500 and $700. I set up an appointment with the technician and he canceled the appointment and never followed up to schedule another appointment.

I WILL NEVER BUY ANOTHER SONY TELEVISION AGAIN!

Posted on Apr 06, 2008

  • 2 Answers

SOURCE: No Video or Sound - Red Stand By Light Blinks 6 Times

My book that i have with my tv says it is time to have it servicedby adealer sorry thats all it says

Posted on Nov 06, 2007

techman
  • 3130 Answers

SOURCE: 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.

Posted on Sep 09, 2006

  • 61 Answers

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

Posted on Oct 15, 2008

stonephoenix
  • 563 Answers

SOURCE: Sony FD Trinitron WEGA KV-32HS500...red standby light blinks 6 ti

I have over 10 years experience in electronic tech support.

I know this isn't what you want to hear, but the problem you've described can't be fixed with
troubleshooting. Your TV will have to be repaired. There is a part that has developed a defect and needs to be replaced. If you're still in warranty, the TV will be repaired at no charge to you. The warranty would likely be at least one year from the date of purchase from the manufacturer. If you purchased an extended service plan they will repair the TV at no charge as well.

If the TV is no longer in warranty, it will likely cost a minimum of $150 parts and labor. This is assuming that you only need one
circuit board or small part. If the problem is more than one of the circuit boards, the price of repair could go much higher.

I hope I've provided you useful assistance and that this information allows you to make an informed decision as to how to proceed from here. Please be sure to vote on my response. I hope I've earned a good rating from you today.

Please let me know if I can be of further assistance.

Posted on Jul 11, 2009

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1 Answer

I havea Sony KV-40xbr800 screen won't turn on red light blinks 6 times, tried plugging directly into wall outlet & no picture still. Any help please ?


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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1 Answer

Sony kv-40xbr800 blinks two times


  1. Two blinks - B+ over current protection (OCP), unit goes to the standby mode then displays the 2 blink fault. Could be a short in the power supply of any of the circuits.


Jun 09, 2012 | Sony FD Trinitron WEGA XBRKV-40XBR800 40"...

1 Answer

Sony 40xbr800 wont turn on, sounds like it wants to fire up but the stand by light comes on and blinks about 6 times


Six blinks points to No Horizontal or raster. The uProcessor detects a problem and enters the self test function shutting down the main power supply.

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2 Answers

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I HAVE A SONY TRINITRON KV-36HS510. IM HAVING A PROBLEM,ITS NOT SHOWING A PIC, AND BLINKING 7 TIMES THEN PAUSE FOR A COUPLE OF SECONDS THEN IT WILL BLINK 7 MORE TIMES,I CAN HEAR AUDIO BUT CANNOT SEE PIC. COULD YOU PLEASE HELP ME OUT ,I'VE TRIED CUTTING THE TV OFF FOR ABOUT 6 HOURS AND CUTTING IT BACK ON,SAME RESULTS, THANKS

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1 Answer

Sony WEGA KV-40XBR800 Standby light blinks seven times when trying to power on, will not turn on


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

Jun 14, 2010 | Sony FD Trinitron WEGA XBRKV-40XBR800 40"...

1 Answer

Sonykv-40xbr800 wont turn on


THe answer to this is that when you solder those 2 chips, you didn't solder them properly. You Probably have the silver soldering substance running down and overlaping some of the pins of those mcz3001 db chips. Make sure you solder each pin individually where it's just a silver dot that does not touch any other pin of those Mcz 3001 DB chips.

I realized this after i did the same thing as you did and saw that i didn't have 3 blinks until aftr i solder those same chips. Coming here and seeing you have the same problem as i did, i went back and changed what i did.

Originaly i only had 6 blinks and likewise i changed the MCA3001 DB chips.

I decided to go back and clean up the job i did and after doing a better job, i turned the tv back on and it came on with no problem. I hope this helps and i don't check here too often but you can email me at cea_4@yahoo.com if youhave any question.
Thanks again and i got the answer to change those chips from here so thank you all who took the time to post this.

I am just a regular guy who has a KV-40XBR800 and wanted to see if this would fix my problem. Becareful solder those chips. Make sure the melted soldering silver wire does not touch any other pins of the Mcz3001 db.
Thanks again.,

May 21, 2010 | Sony FD Trinitron WEGA XBRKV-40XBR800 40"...

1 Answer

Sony FD Trinitron KV-40XBR800 wont turn on


30 YR SERVICE TECH.
YOUR UNIT IS EXPERIENCING A POWER SUPPLY FAILURE.(INTERNALLY)
TAKE TO A SONY AUTHORIZED SERVICER.

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Sony VEGA KV-40XBR800 d Board failure


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

Dec 27, 2008 | Sony FD Trinitron WEGA KV-36XBR800 36" TV

2 Answers

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

Oct 05, 2008 | Sony FD Trinitron WEGA KV-32FS120 32" TV

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.

Sep 09, 2006 | Sony FD Trinitron WEGA XBRKV-40XBR800 40"...

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