DM900UHD Motherboard pictures

Discussion in 'Schematic drawings, Pcb images etc..' started by Johnny B., Dec 10, 2016.

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  1. Johnny B.

    Johnny B. Technical Support Staff Member Moderator

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    I can not guarantee if a new cpu solves it, but it could be.
    However, to buy somewhere this cpu may not so easy as it sounds, as also removing, replacing a cpu is not so easy without good equipment and tools.
     
    Johnny B., Jul 9, 2021
    #121
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  2. Rasmus

    Rasmus New Member

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    It's an IRLML5203 equivalent (marking [J6])
     
    Rasmus, Oct 21, 2021
    #122
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  3. Johnny B.

    Johnny B. Technical Support Staff Member Moderator

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    Thank you very much for sharing it, and also added it in the respective post.:)
     
    Johnny B., Oct 21, 2021
    #123
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  4. rodina

    rodina New Member

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    Hello. I tried to solder the chip several times, it was not successful. I put it off. Here again I decided to try to solder the chip and this time it worked, the box worked. BCM7252S processor purchased from Taobao.
     
    Last edited: Feb 17, 2023
    rodina, Feb 17, 2023
    #124
  5. rodina

    rodina New Member

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    Also soldered IRLML5203 - it works. Thank you all very much.
     
    rodina, Feb 17, 2023
    #125
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  6. rodina

    rodina New Member

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    :)
     
    rodina, Feb 17, 2023
    #126
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  7. Johnny B.

    Johnny B. Technical Support Staff Member Moderator

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    Glad you solved it, something to be proud of. :cool:
    And thanks for posting your repair results.
     
    Johnny B., Feb 17, 2023
    #127
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  8. salora555

    salora555 New Member

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    Hello, I'm from the Czech Republic and I'm quite unhappy and dissatisfied with the operation of the DM900, which are very defective, in one model the HDMI went out, in the other the LAN ethernet mesh and in both cases a complete replacement/replacement /CPU will be necessary, unfortunately I don't know which type I have with these models exactly, maybe BCM 7328 or BCM 7325, but I can't find them anywhere in the offers on google, I find out here that the replacement is possible, although quite demanding and only with the use of special soldering tools.

    Can you please tell me where and if this processor can be found somewhere and if so, whether you have a cartridge for it. Another option is to buy a complete main board from the Saudis for approx. 180 Euros, which seems a little too much to me, what kind do you have in this regard please your personal experience?

    Thank you for your response and please send me an e-mail:

    salora250@seznam.cz


    Thank you very much

    Hello Josef W.
     
    Last edited: Apr 7, 2023
    salora555, Apr 7, 2023
    #128
  9. Johnny B.

    Johnny B. Technical Support Staff Member Moderator

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    Sorry, I can't help you with your question, simply because I haven't dug into it.

    With the older dream and vu+ boxes I sometimes took the trouble to replace the cpu until I lost a lot of money on fake CPUs.
    After that I didn't feel like replacing it with new CPUs. but only when they were used old re-balled cpus.
     
    Johnny B., Apr 7, 2023
    #129
  10. DM900

    DM900 Member

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    Hi dear u have any buying link of processor
     
    DM900, Mar 2, 2024
    #130
  11. Johnny B.

    Johnny B. Technical Support Staff Member Moderator

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    As for the processor, from what I see, it will be difficult to find a seller. re-balling the old one is often the best solution to try to repair.
    Using a stencil and using low heat solder paste instead of solder balls worked better in the past when I did it.
    But it's still a lot of work, and the risk of failure is always possible.

    If the question is related to the IRLML5203, than it's easy to find by example aliexpress.
     
    Johnny B., Mar 2, 2024
    #131
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  12. DM900

    DM900 Member

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    Thanks for reply sir actually I pressed cpu too much now I have doubt cpu dead
     

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    DM900, Mar 2, 2024
    #132
  13. DM900

    DM900 Member

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    Sir which one is IRLML5203
     
    DM900, Mar 2, 2024
    #133
  14. Johnny B.

    Johnny B. Technical Support Staff Member Moderator

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    it's the Q2102 with marking code H5XG2, but the marking code could be different, but its the same.
     
    Johnny B., Mar 2, 2024
    #134
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  15. ismail0102

    ismail0102 New Member

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    I have a problem with the HDMI connection in the dreambox 900 device. It does not work and the image does not appear on the TV. I used many cables and changed the TV. Can you help me?
     
    ismail0102, Sep 14, 2024
    #135
  16. Johnny B.

    Johnny B. Technical Support Staff Member Moderator

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    If it is not a damaged/dirty hdmi connector, and or a pin soldering of it, then unfortunately hdmi problems are often related to the cpu, bad old solder balls and or damage to the cpu hdmi part.
    Defect can happen when removing/placing the hdmi plug while both devices are turned on.
    The hdmi connections go directly to the processor, so the chance of damage is possible.
     
    Johnny B., Sep 14, 2024
    #136
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  17. ismail0102

    ismail0102 New Member

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    There was a fault in the processor and it was fixed by heating and using a special soldering material. Is the problem with the processor?
    When installing the HDMI cable, this problem appears: the front light of the Dreambox screen disappears.
     

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    Last edited: Sep 14, 2024
    ismail0102, Sep 14, 2024
    #137
  18. buwalla

    buwalla New Member

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    can you help me
    I have a dreambox DM920 uhd device that freezes and even when put in standby mode and after 3 hours or more freezes and does not work through the remote except when you turn off the electricity from it
    And some times It takes two days to work without freezing and then when it is closed and turned on the problem returns after hours

    I installed the original software and the same problem, and I also installed the openatv software 7.4 and the same problem, even without downloading any channels or downloading any plugins that cause the problem
     
    Last edited: Sep 14, 2024
    buwalla, Sep 14, 2024
    #138
  19. Johnny B.

    Johnny B. Technical Support Staff Member Moderator

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    @ buwalla,

    The first thing that comes to mind is that it could be related to the power supply.
    If possible, test it with another psu that is 12v dc and at least 3 amps.
    Pay attention to the polarization, it should be the normal polarization, so the center the plus, etc.
     
    Johnny B., Sep 15, 2024
    #139
  20. Johnny B.

    Johnny B. Technical Support Staff Member Moderator

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    @ ismail0102,

    Seems like a hdmi short circuit, it could be one of the diodes, D1201/2/3.
    You can remove them, without it the HDMI should work.
    Only then you have no protection against ESD.

    If that is not the cause, and the HDMI port is ok, then the CPU is probably the only remaining issue.
     
    Johnny B., Sep 15, 2024
    #140
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