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Terrible DTV converter box

Discussion in 'Electronic Design' started by [email protected], Feb 24, 2012.

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  1. Guest

    Back a few years ago when we had to switch to digital Tv, the Channel
    Master CM-7000 was rated at the top of the consumer reports. I bought
    one. It turned out to be the biggest lemon of all electronics I've ever
    bought. As soon as I got it, it had these either sloppy, or over
    sensitive switches on the front of the box. If I was watching channel
    6.1 and wanted to go to 6.2, pushing the channel UP botton would almost
    always go to ch 8.1 or 10.2. The on off button worked the same way.
    You'd push it to then it off, and it would go off and come right back

    Eventually this cheap plastic lever that pushes the actual on-off switch
    broke, leaving no way to turn it on or off. I had to open the case to
    turn it on using a screwdriver against the actual switch, and always
    leave it on or unplug it. I finally put it on a power strip so I could
    turn it off with the p-strip.

    Well, earlier in the week I turned it off, and instead of going into
    standby more, it completely shut off.

    It works like this:
    Green Led is ON
    Yellow Led is Standby
    Red Led is Off

    The only time I saw the red led was when I first turned on the power,
    and only for a few seconds. The other day it was on, with yellow led,
    then it went to red. It stayed red for a half hour or so, then suddenly
    the light turned green and the tv had a program. Yesterday I turned on
    the p-strip and the led stayed red. I shut it back off, then on again,
    several times. Now it appears to just have gone permanently dead. I get
    that red light and nothing more. Its been that way for 10 or 11 hours
    now. I opened the case, there are no burnt parts or bulged caps. I
    tapped on and flexed the board, but it appears to have died.

    In some ways, I'm almost glad this miserable thing is gone, but I'm not
    used to being without tv. I guess I'll have to buy another converter
    today, but it wont be a Channel Master. Actually I have another one, a
    RCA, but there is no remote for it, so I cant program it.

    As far as design, I think all these converter boxes were cheaply made to
    be sold cheap on those govt. coupons, but this CM-7000, was the worst of
    them. I had used the coupons for some elderly relatives and bought them
    some other brand converters at that time, because there was a shortage
    of many of the most popular ones. I installed their converters for
    them, and they still work today. So, in the end, the top most rated
    converter turned out to be the worst one. The cheaper ones still work.

    So much for consumer reports!!!
  2. josephkk

    josephkk Guest

    Sorry to hear that hadn't heard that they were long ago co-opted by the
    manufacturers' groups.

  3. Nico Coesel

    Nico Coesel Guest

    My wife once got trapped into subscribing for a digital decoder from
    the cable company. On the leaflet its said it would take 1 or 2 hours
    to install. Needless to say I returned it unused. We did had to pay
    extra for one year but after that I cancelled the entire subscription.
    Download utorrent and watch from your PC. You already pay for what you
    watch by buying groceries. Don't forget the TV stations get funded by
    the commercials.
  4. josephkk

    josephkk Guest

    Mmmmm. Maybe more like under management and bean counter cost control?

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