Question about Sony FD Trinitron WEGA KV-32FS120 32" TV

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Sony KV-36hs500 problem

Just got off chat with Sony,and they tell me I have a problem with my power supply unit in my TV. The problem is it doesn't turn on,and when it tries I get 7 blinks form the standby light. Does this sound like a power supply problem,and if so how hard is it to fix,and is it an expensive repair to do myself? The tv is 5 years old. Thanks for your help.
Chris

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  • 5 more comments 
  • cdirado Jul 14, 2008

    Is this something I can get online somewhere,and replace myself,or is this something that needs to be serviced by a TV technician? The picture was fine before it died,and I do have an older 32 Vega flat screen that we had at our old house(the 36" that just died was purchased with our house from the previous owner) that I may have to bring out of the basement in the meantime.

  • cdirado Jul 14, 2008

    I was just on the phone with an online parts supplier,and they told me the power regulator/supply was part of the main board on this unit,and would need a full replacement of that part at the tune of $250ish. I hope not. I will get the TV out of the stand in a few minutes,and maybe I can get you the numbers. Will I have to take off the cover on the rear of the TV to see this? If so is that a simple task? Thanks again,


    Chris



  • cdirado Jul 15, 2008

    I have the back off,and I can see where the AC cord attaches to a circuit board,but I am not sure what exactly I need to get numbers off of.The whole board,or some component on the board? What should I be careful of in here? I ask because I know there are capacitors that hold quite a charge in tube TV's,and being an electrician I am aware of the dangers of electric shock. 


    Thanks again,


    Chris

  • cdirado Jul 16, 2008

    Brought the TV to a local Sony authorized repair place today. Got a estimate to fix,and it is $400 to replace,and realign the D-board. Does this sound right? Does this sound like a reasonable price to replace this part? I brought it there mostly because I don't have a ton of time to fix this myself,and I didn't feel comfortable doing it myself once I had a look inside the back of this mammoth. Is this TV even worth $400? I bought it used from the previous owner of our house for $1200 including the stand,surround sound Sony DVD changer,VCR,etc. I really can't afford a new TV at the $800-$1000 price tag(even with my stimulus check),and the $400 isn't any bargain either. I paid $75 to have the TV looked at so far,and I have a 32" Sony Wega from our old house in place of the TV right now,but it looks out of place on the big 36" stand. Also we like the 36" in our big living room,and could even go larger,but can't afford it.


    Chris

  • cdirado Jul 16, 2008

    Massachusetts

  • cdirado Jul 17, 2008

    DO you have a contact for him,and do you think it would be cheaper to go this route? Are you in Massachusetts?


    CHris



  • cdirado Jul 25, 2008

    I told the repair place that we cannot afford fixing at this time. Should I go get it,and wait until we can afford it,or just forget the TV? I like the TV,and someday when we can afford HD service I have been told the picture on these Sony's is good. Am I better off just buying a used TV,or a brand new one? 


    Chris

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The 7 blinks indicate a high voltage shutdown condition. This means that the high voltage has exceded 33,000 volts. This is usually due to a power regulator problem. The regulator in this set is probably an STRSxx (I don't have a listing for your model) and shouldn't cost more than about $25 or so. If the picture was good prior to the failure and you can replace the part for less than $150 or so, it is probably worth it.

Dan

Posted on Jul 14, 2008

  • 4 more comments 
  • ABRsvcs Jul 14, 2008

    This part will be close to the AC input cord and wil be attached to a heatsink. The marking on it should be STR something. Look around and post the marking here and I'll confirm the complete part designation. The part should be available from a number of places. I'll update this once you post the markings.

    Dan

  • ABRsvcs Jul 15, 2008

    Yep, you need to open up the back. Parts distributors will have the individual parts as well as the boards. Many service shops these days don't bother repairing the boards, they jsut exchange them. That is why service is so expensive now. There are still some of us that actually do component level repairs. Post the markings and I'll get you the part numbers and costs.



    Dan

  • ABRsvcs Jul 15, 2008

    The regulator will be a relatively small black IC with 6-11 pins. It may be attached to a silver heatsink (aluminum actually, but silver in color...)



    Dan

  • ABRsvcs Jul 16, 2008

    The service center should be able to replace just the regulator. I don't know what "alignment" is needed. The $400 is reasonable for a board replacement. It should be $200 or less for replacing just the defective regulator though. Where are you located?

    Dan

  • ABRsvcs Jul 16, 2008

    If you know where Lancaster is, there is a servicer that sets up at the Lancaster Flea Market as a convenience for customers.



    Dan

  • ABRsvcs Jul 26, 2008

    I have spoken with the servicer and can confirm a cost of less than $200. I am walking a fine line here, but if you can get it to Lancaster, at least you can get a more detailed diagnosis for no additional cost.



    Dan

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