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NEC FE950 Repair info

Discussion in 'Electronic Repair' started by Alan Weston, Aug 13, 2003.

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  1. Alan Weston

    Alan Weston Guest

    Folks:

    I have a beautiful 19" NEC Autosync FE950 go dead on me a couple months
    after warranty expiry.
    After inquiry, I was informed that repair charges would be about the cost of
    a new monitor!
    Damn shame.

    If anyone has info on repair manuals, circuit diagrams or pertinent FAQs, it
    would be greatly appreciated.
    I'd like to try to repair it before trashing it.

    It was showing signs of weakness with periodic collapse of the image before
    finally going blank.

    Thanks,
    Al
     
  2. Asimov

    Asimov Guest

    to "All" (13 Aug 03 16:47:35)
    --- on the topic of "NEC FE950 Repair info"

    It's a shame the repair is so expensive because from your description
    the problem doesn't seem to me all that serious or costly to repair.

    Often a vertical output goes dead because some electro cap went weak
    thus forcing the circuit to work extra hard to compensate due to the
    negative feedback loop. The vertical output IC is often a 2 to 5 dollar
    part and the bad electro maybe another 50 cents. Or it could simply be a
    bad connection on the yoke output socket or a cracked solder!

    However, repair centers do have to make their margins somehow. I'm not
    saying the repair center is gouging anyone but they are at the mercy of
    overhead costs and have to charge some flat rate to cover themselves in
    event the problem takes longer or needs more parts to repair. The
    customer with the cracked solder pays for the one that needs a flyback,
    etc. Besides I bet they simply swap the main board out for a rebuilt one
    for a sure fire fix, due to the difficulty in repairing smt stuff, and
    alternatively that could explain a lot of the steep cost to you. Things
    are getting physically smaller and harder to repair these days. I
    thought the writing on signal diodes was getting awfully tiny before!


    AW> From: "Alan Weston" <>

    AW> Folks:

    AW> I have a beautiful 19" NEC Autosync FE950 go dead on me a couple
    AW> months after warranty expiry.
    AW> After inquiry, I was informed that repair charges would be about the
    AW> cost of a new monitor!
    AW> Damn shame.

    AW> If anyone has info on repair manuals, circuit diagrams or pertinent
    AW> FAQs, it would be greatly appreciated.
    AW> I'd like to try to repair it before trashing it.

    AW> It was showing signs of weakness with periodic collapse of the image
    AW> before finally going blank.

    AW> Thanks,
    AW> Al

    .... The current limits placed are based on resistance
     
  3. Alan Weston

    Alan Weston Guest

    Thanks for the feedback Asimov.
    I'll look into it. I'm not an accomplished repair guy, so any help is
    appreciated.
     
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