My Humax Forum » Freesat HD » HDR 1000, 1010, 1100S

HDR 1000s dead

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    Retired Eng

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    ........continued

    ....the 110 mA ......on the data sheet attached.

    The white wire (rotation detect) not being used presumably explains the 30 mA
    The DC resistance previously measured of about 4 meg ohm between the +ve and -ve fan connections presumably indicates active device(s) in the fan.

    (The actual version of the AUB0512LB fitted is the BS12 but this data sheet was the nearest version I could find)

    Should the fan cut in (with the box lid on) from time to time in normal operation when the ambient temperature in the room is a bit over 20C ?

    | Wed 11 Dec 2024 12:02:12 #11 |
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    Martin Liddle

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    Retired Eng - 3 hours ago  » 
    Should the fan cut in (with the box lid on) from time to time in normal operation when the ambient temperature in the room is a bit over 20C ?

    I am not a Freesat expert but on some other Humax Freeview boxes the fan doesn't kick in until the temperature is 55 C.

    | Wed 11 Dec 2024 15:07:39 #12 |
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    Retired Eng

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    Thanks Martin, is that an air temperature inside the box of 55C ?

    | Sun 15 Dec 2024 17:54:54 #13 |
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    Martin Liddle

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    Retired Eng - 6 hours ago  » 
    Thanks Martin, is that an air temperature inside the box of 55C ?

    In the cases I am familiar with, it is the temperature reported by the sensor in the hard drive.

    | Sun 15 Dec 2024 23:58:41 #14 |
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    Retired Eng

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    An update on progress
    It was working OK for a month or so after the hairdryer treatment but has now failed again. Same symptoms, 5V and 12V OK, Heatsink hot (58C), no display or standby LED,
    Tried the hairdryer again, no success this time.

    Any ideas?

    | Sun 9 Feb 2025 15:44:38 #15 |
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    Retired Eng

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    Further update

    Tried again but with heat gun (1200W) instead of hair dryer.
    This easily got it beyond 125C but moved it further away and gave it 135C for the best part of 10 minutes.
    Now working again.

    I guess when it's left in standby for a while the temperature of the SoC will cycle with the central heating and at this time of year the overnight temperature could be quite low. I wonder if this is what causes the problem with a SoC where the die is starting to come away from the substrate ?

    | Thu 13 Feb 2025 11:37:34 #16 |

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