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DVD Player

Discussion in 'Electronic Repair' started by Golf, Mar 25, 2007.

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  1. Golf

    Golf Guest

    I know I'll get hammered for this, but here it goes.........I have a
    Mintek portable DVD player (I know, should have bought another brand).
    Anyway, it will recognize a disk, but it stays in the loading mode
    with the disk spinning at high speed. Never starts what's on the disk.
    Any possible fix, or suggested problems that may be causing this
    (except buy a different player)? Thanks group.
  2. Hi!

    Well, it sounds like there is the possibility of the unit recognizing the
    disc properly. I'd start by trying another DVD, preferably from another
    movie studio if you haven't already done that. Also try an audio CD and see
    if that plays.

    Try carefully cleaning the laser lens.

    Finally, check the power supply for bad capacitors. Some cheaper DVD players
    have bad or underrated capacitors in the power supply.

    All of that said, I haven't got much against a cheap DVD player. I have an
    older Apex Digital AD-1201 that is used heavily and is still going strong. I
    also have a very lightweight Philips player that I picked up off the curb.
    After letting it dry it, it too has worked just fine.

  3. Meat Plow

    Meat Plow Guest

    Will it load a cd?
  4. Golf

    Golf Guest

    Thanks for the reply. It plays a music CD fine. I figure since I don't
    get the "no disk" message with a DVD, the laser is OK. I did notice
    that if the laser is moved away from the center, then put in a disk to
    play, the laser doesn't track back to the center - it doesn't move.
  5. Golf

    Golf Guest

    Thanks William. I'll check inside for maybe obvious cap problems, but
    the player will play music CD's. Thanks again.
  6. NRen2k5

    NRen2k5 Guest

    Funny you should say that.

    My first DVD player ever was an Apex, and it was a godawful piece of
    slag. I had paid more than $200 for it new, and by the time I was
    finally able to take advantage of the no-lemon part of my extended
    warranty, an "equivalent" Samsung DVD player was less than $75.

    I am not an Apex fan now.
  7. Hi!
    I've heard both kinds of stories, and about equal numbers of each. I bought
    this player shortly after it came out and was thinking "oh, what a cheap DVD probably won't last that long". But it has done very well over
    time and a lot of movies, audio CDs, photo CDs, video CDs, etc...

    I suppose that if I had a high end TV set I might be unhappy with the
    picture, as some people have reported that the picture isn't the best when
    used with a really good TV. My ~10 year old 25" Zenith seems to do just
    fine. My only complaint about the unit has been a brief delay in playback
    when the layer transition happens on a dual layer disc. I've seen more
    expensive players (a nice high end Panasonic player comes to mind) that did
    the same thing.

    The power supply on mine doesn't seem to be troublesome. It runs cool and
    shows no signs of impending failure. I did, however, add a heatsink to the
    main video processor/control IC on the main circuit board. That chip got
    awfully hot in operation, so I fashioned a heatsink for it after putting a
    thin layer of heatsink compound down on the chip itself. Perhaps my adding
    the heatsink has done a lot to increase the longevity of the unit.

  8. Meat Plow

    Meat Plow Guest

    If it plays a cd fine but not a dvd I've learned that this is a laser
  9. Arfa Daily

    Arfa Daily Guest

    If it plays a CD ok, then the sled must be capable of movement. If the laser
    genuinely doesn't home when a DVD is put in there, then that is a puzzle.
    What happens if you deliberately move the laser from home, and then just
    shut the door? Likewise, if you do the same with a CD? In all cases, the
    laser homing should be the very first thing that occurs, as soon as the
    system control micro detects that the door switch has closed. That aside,
    you cannot infer that the laser is good, just because you don't get a "no
    disc" indication. If the disc spins up, that implies that focus has been
    correctly obtained. The reason that it then continues to spin at high speed
    is that the spindle servo has not locked. This can be for several reasons.
    However, the fact that a CD can be played generally indicates that the servo
    and motor drive circuitry are operating correctly. By far, the most common
    problem when a CD can be played, but a DVD not, is the laser ( optical
    block ) itself.

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