How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask Chuck Williams Your Own Question

Chuck Williams
Chuck Williams, Technician
Category: TV
Satisfied Customers: 3810
Experience:  Over 25 years of experience servicing AV electronics to component level, ISF and THX Cert.
Type Your TV Question Here...
Chuck Williams is online now
A new question is answered every 9 seconds

Sony FD Trinitron WEGA KV-36HS420 36 TV Blinks problem

Resolved Question:

Sony FD Trinitron WEGA KV-36HS420 36" TV Blinks problem
Submitted: 5 years ago.
Category: TV
Expert:  Chuck Williams replied 5 years ago.

 

Hi!

 

Unplug the TV from the AC power. Plug it back in. Try to turn it on. If it comes on, then shuts down, the front panel stand-by LED will flash a certain number of times. It will pause, then repeat the flash sequence. This is an error code, and helps us diagnose the problem. Let us know the flash sequence, and we'll go from there.

 

Chuck

Customer: replied 5 years ago.
Done that and it still flashes 7 times, pauses and flashes 7 times over and over.
Expert:  Chuck Williams replied 5 years ago.

OK, let me research this and I'll be back in a few.

 

Chuck

Expert:  Chuck Williams replied 5 years ago.

OK, I'm pretty sure I know what's wrong.

 

You almost certainly have two IC's in the power supply that need to be replaced. Only one is causing a problem, but they should both be replaced. You may be able to make the set come on if you try the power button enough times, that's how the IC's behave.

 

If you have electronics experience and can solder and unsolder electronics components, you might be able to do this yourself, but it's a fairly daunting challenge for the uninitiated.

 

This set has them located on a double sided PC board (the DZ Board) and it is much more difficult to service than a single sided PC board. You need specialized desoldering equipment to remove the IC's, and frankly, many otherwise so-so TV shops can't handle this. It's the rare servicer who has the ability to do this with care and skill.

 

When I encounter this board, I have to take the board away from the customer's home and work on it at my shop where I can do this procedure. Ballpark cost would be $350, and that's a little higher than it might be if it was a single sided PC board, because this board is so much more difficult to work on.

 

But the parts are IC6501 and IC8002, located on the DZ Board, and the generic part number is XXXXX You can order it by that part number from MCM Electronics. The Sony part number is XXXXX

 

One other possibility for you is to contact PTS Corp. and see if they can rebuild the board for you.

 

Hope that helps, let me know if you'd like more info on this, and thanks for using JustAnswer!

 

Chuck

Expert:  Chuck Williams replied 5 years ago.

Is there anything else I can do for you?

 

If you found my advice helpful, would you mind clicking the Accept icon so that I may be paid for my time? I'd greatly appreciate it!

 

Chuck

Chuck Williams, Technician
Category: TV
Satisfied Customers: 3810
Experience: Over 25 years of experience servicing AV electronics to component level, ISF and THX Cert.
Chuck Williams and 6 other TV Specialists are ready to help you

JustAnswer in the News:

 
 
 
Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.
 
 
 

What Customers are Saying:

 
 
 
  • I'm screaming your praises!! WOW! I plugged my TV in and bammo! The picture came on bright and beautiful. What a relief! YOU saved me some money and headache. VM United States
< Last | Next >
  • I'm screaming your praises!! WOW! I plugged my TV in and bammo! The picture came on bright and beautiful. What a relief! YOU saved me some money and headache. VM United States
  • I love this site! $9 instead of a repairman or new/used frig can't be beaten. This older woman will worry less now that she knows about this site. Bless you all. Windy USA
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex Los Angeles, CA
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP Hesperia, CA
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, NC
  • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther Woodstock, NY
 
 
 

Meet The Experts:

 
 
 
  • TV Tech1's Avatar

    TV Tech1

    Technician

    Satisfied Customers:

    4742
    30 Years experience. Authorized Warranty servicer.
< Last | Next >
  • http://ww2.justanswer.com/uploads/TV/TVTech1/2013-3-25_625_TECH1Nobanner.64x64.jpg TV Tech1's Avatar

    TV Tech1

    Technician

    Satisfied Customers:

    4742
    30 Years experience. Authorized Warranty servicer.
  • http://ww2.justanswer.com/uploads/AN/AnthonysTV/2012-6-7_233238_3261031015069915578622451030122311518740971194455o.64x64.jpg Anthony F.'s Avatar

    Anthony F.

    Owner of TV Service Center

    Satisfied Customers:

    3970
    20+ yrs. of experience in TV repair, TV production and engineering as owner of TV service center.
  • http://ww2.justanswer.com/uploads/OR/OriginalSeadog/2011-7-22_191917_ProfilePicture.64x64.jpg Rod's Avatar

    Rod

    TV & Communications Sys Repair

    Satisfied Customers:

    2353
    FCC Commercial License, Previous owner of Electronics Repair shop, 40+ years in electronic systems.
  • http://ww2.justanswer.com/uploads/MD/MDGSacto/2012-1-18_16446_MEInaTux.64x64.jpg Mike G.'s Avatar

    Mike G.

    Technician

    Satisfied Customers:

    2233
    10 Years Audio Video Repair & Setup
  • http://ww2.justanswer.com/uploads/benimur/2009-03-29_003401_id_2.jpg Louie's Avatar

    Louie

    Technician

    Satisfied Customers:

    2072
    25+ yrs. experience in the field and 3+ yrs. online, down to component level.
  • http://ww2.justanswer.com/uploads/ST/steven.benoit/2011-4-1_194735_untitled1.64x64.jpg Steven's Avatar

    Steven

    Technician

    Satisfied Customers:

    1327
    Ma. Master Technician Lic. Authorized Warranty Support.
  • http://ww2.justanswer.com/uploads/P0/p0llinate/2011-4-27_174649_tucker.64x64.JPG Nathan's Avatar

    Nathan

    Installer

    Satisfied Customers:

    1217
    Custom home theater installer, authorized dealer top brands.