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Where to get Magnavox flyback transformers

Discussion in 'Electronic Repair' started by Adam Preble, Feb 25, 2006.

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  1. Adam Preble

    Adam Preble Guest

    Awhile back, it was diagnosed on the newsgroup that I have a bag flyback
    transform on my Magnavox projection TV. I have been trying to get the
    part from Partsestore.com. They will report it in inventory, but then I
    get an email that they're out and on national backorder; it could take
    more than a month for them to get new ones. While I want to trust them,
    the fact that they said they had it on stock even when I changed the
    order over the phone doesn't give me much faith in the company.

    I've been been trying to get one of these two from them:
    http://www.partstore.com/ProductDetail.aspx?ProductSKU=6634769&ProductType=PART&ModelID=168744
    http://www.partstore.com/ProductDetail.aspx?ProductSKU=6634791&ProductType=PART&ModelID=168744
     
  2. Jerry G.

    Jerry G. Guest

    You will be extremely lucky to find someone who has stock on these, if
    they can still find them!

    Most people are trying to dispose of these sets rather than fix them.
    If you look at the value for the time involved, plus the cost of the
    parts, these sets are not worth servicing.

    Since the FB is bad, chances are that there are other problems to also
    be serviced. Considering the age of the set, I would not be confident
    in its rerliability.

    If you want a newer CRT set, there are many deals around t'll they run
    out of them.


    Jerry G.
    -------
     
  3. Why do you say "Since the FB is bad, chances are that there are other
    problems to also be serviced?"

    The vast majority of flybacks that are bad, IME, are the sole problem. Now
    some of the Philips products hav been known to have concurrent failures of
    the flyback oand other parts, so is this one of those?

    Leonard
     
  4. Guest

    I like how the flyback being bad was diagnosed on the newsgroups. LOL
    I guess the set is not worth having it properly diagnosed by a
    technician given its age and known additional issues, cloudy coolant.


    Yes, in many more cheaper designed sets, like Philips, when the flyback
    fails it does usually require some additional parts. Not often much
    more than the HOT, but sometimes much more, NAP D7 chassis comes to
    mind for one.
     
  5. Jerry G.

    Jerry G. Guest

    Many times when replacing the flyback, I also found the HOT to be
    damaged. On some occasions, I found that I had to replace a number of
    high ESR caps. When considering the labour alone, the customer can
    almost buy a newer set with newer technology, and have a full warranty.

    --

    Jerry G.



    Why do you say "Since the FB is bad, chances are that there are other
    problems to also be serviced?"

    The vast majority of flybacks that are bad, IME, are the sole problem.
    Now
    some of the Philips products hav been known to have concurrent failures
    of
    the flyback oand other parts, so is this one of those?

    Leonard
     
  6. The D7 chassis was exactly the one that I was thinking of. Other than that,
    and the Sony BA5 ABL resistor, I have found it to be rare to have to replace
    other parts.

    I think the point is that a consumer or weekend mechanic trying to fix
    anything that he is not familiar with should be aware that there are
    infinite possibilities for complications.

    Leonard
     
  7. Adam Preble

    Adam Preble Guest

    Well, a fusible resistor is open, and one of the transistors shorted on
    the collector and emitter. I don't have a resistor yet, but I got the
    transistor. I figured I'd pick up a resistor in spec somewhere in town.

    I've had the transistor for a few weeks now, waiting for the
    transformer. So something else did go with it, but that transformer is
    the problem right now.
     
  8. tvguy

    tvguy Guest

    I would agree that there maybe something else wrong with this set that
    you have. I have had people bring me in sets that are dead claiming
    the picture tube died so that is why there set is not working and
    wanting to know what the picture tube will cost. All because they
    look on the internet to what you call these newsgroups and do it
    yourself electronics forums which is a bunch of crock. I would take
    this set to a qualified repairshop to have it checked properly if it
    means so much to you to track down a flyback for it. If not, then I
    would have to agree with the other guys is to go out and get yourself
    a new set.
     
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