DM800HD se strange problem with freezing

Discussion in 'Hardware troubles and Repair support.' started by scoobydoo, May 8, 2016.

  1. scoobydoo

    scoobydoo New Member

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    Hi guys

    I m new on this forum and i have very strange problem with my box.
    So, the problem is that when i switch on my box, the boot works great and there is no problems with booting but when he need to tune on channel, the box freezes and nothing is possible to do except switcing off from power suply. When i disconect th RF cable from tuner, then the tuner says tuner fail and you can change everything in menu of image and CCcam is runinng. I try with another box to check my dish and instalations and with DM500HD is everything OK. Well, the problem is not in instalation or diseqc switch. The power suply is changed but with no succsess. So, is tuner broken or there is problem with main board? Changing image does not working, same problems is still happens with all other images..... What i need to check?
    Thx
     
  2. Johnny B.

    Johnny B. Technical Support Staff Member Moderator

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    Hi, and welcome here.

    Test the box without the tuner.
    See if it's keep working with Iptv, or some movie file from a hdd or usb stick.

    If it's keep working, than it could be a tuner issue.
    If it fails also, then try to test the box with the tuner, but disable the network or wireless network if it's has it.
    Without success of both methods it could be a weak voltage issue from the motherboard, or most worse scenario a cpu issue.
    However, suppose that the nand flash chip has some issues as bad sectors, than this symptom could also happen.
    To check this, use dreamup and enable above, extra, the recovery bad sectors.
    Upload a image file and see if it find bad sectors.
     
  3. toysoft

    toysoft Well-Known Member Staff Member

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  4. scoobydoo

    scoobydoo New Member

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    Hi guys,
    i have try every tips but there is no solution.
    The box is still runung good without tuner connected on its, the hdd is running movies and its working well.
    Unfortunatly, i can not use the dreamUp program to check bad sector because a 1 day ago, my network bus has been shooted by a lightning, and temporarly i use a wifi stick to connecting the box on internet.
    Those few days are verry bad for me .....
     
  5. scoobydoo

    scoobydoo New Member

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    And my DM800HD :)
     
  6. Johnny B.

    Johnny B. Technical Support Staff Member Moderator

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    Seems to me a tuner issue.
    But this is not to say for the fully 100% because other factors may also cause it.

    But what about "And my DM800HD".
    Do you mean that you also have an problem with your 800hd?
     
  7. scoobydoo

    scoobydoo New Member

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    I forgot to write "se" , i dont have any other box. I have try my cabel connections to dish and lnb-s with my brothers DM500HD.
    So, what is yours suggestions?
    Changing tuner with new one, (that can maybe resolve the problem) or buy a new box?
    How much money i need to pay for new tuner?
     
  8. Johnny B.

    Johnny B. Technical Support Staff Member Moderator

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    Depends what you want to spend.
    But I myself, if I do not have a spare tuner, would buy a new receiver and possibly try the tuner on the failed box.
    A complete new dm800se (Sunray) receiver in not so extensive anymore, you could find them for around the 120 dollar, sometimes even lower.
    If that works, I would buy a new tuner for it, and sell one of the boxes.

    Other option is to buy a new tuner which you can find for around the 23 dollar as on aliexpress.
     
  9. scoobydoo

    scoobydoo New Member

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    I decide to buy a new receiver.
    It was so anyoing to try fixing this one over and over again....
    I throwed them away to the garbage so the box can RIP !!!
    Now i feel much better :)))))
     
  10. Johnny B.

    Johnny B. Technical Support Staff Member Moderator

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    Yeah, sometimes you waste too much time and money in solving a problem that it was better to buy a new one.

    But the problem with this is, is it realy the tuner, or it is caused by the cpu tuner sections.
    And is the tuner become faulty and caused by the motherboard, or due a external cause.

    Normally I would first replace the tuner to see if it helps, but if you have no spare tuner, than it's difficult.
    Also it's not without risk.
    In any case, the cost of a new box is reasonable.
    Anyways, success with the purchase of the new box, and thanks that you has left a message.
     
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