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HORMANN HSE 2-868-BS Gate Remote Control: Red LED Only After Battery Change

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Why does a HORMANN HSE 2-868-BS gate remote only light the red LED after a battery change and seem to drain the battery, and how can it be checked or repaired?

The remote should not draw current in standby; if it really takes about 100 mA without pressing any button, it is faulty. The suspected part is D29, a pair of PNP/NPN digital transistors used to hold power when a button is pressed, with the processor controlling it [#16450615][#16450662][#16454963] A practical test is to power it from a 3 V supply and see what heats up after a while; the part that warms up is likely the defective one [#16454963] If the processor is damaged, the remote is effectively dead, but if the SX1230 transmitter is the problem, it can be replaced [#16454963]
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  • #1 16450595
    2929
    Level 14  
    Posts: 248
    Rate: 61
    Hello!
    The HORMANN HSE-868-BS gate remote control does not work. After inserting a new battery, for about an hour it seems that the remote control is working because after pressing one or the other button the red LED lights up and in a moment the blue LED lights up. After an hour or so, only the red LED lights up. The remote probably discharges the battery, because when you press the button on the remote control, the remote starts with about 10 mA and then 25 mA.
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  • #2 16450615
    Anonymous
    Level 1  
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  • #3 16450632
    2929
    Level 14  
    Posts: 248
    Rate: 61
    Does not consume electricity without pressing.
  • #4 16450655
    Anonymous
    Level 1  
  • #5 16450662
    2929
    Level 14  
    Posts: 248
    Rate: 61
    The battery is new Energizer.

    Added after 6 [minutes]:

    Sorry, without pressing the remote control uses 100mA.
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  • #6 16450694
    Anonymous
    Level 1  
  • #7 16450703
    2929
    Level 14  
    Posts: 248
    Rate: 61
    Tomorrow around 11 am I will take pictures.

    Added after 14 [hours] 12 [minutes]:

    Hello!
    I attach photos of the pilot.

    Added after 1 [minutes]:

    I'm sending photos
    Attachments:
    • HORMANN HSE 2-868-BS Gate Remote Control: Red LED Only After Battery Change 20170503_111125.jpg (649.62 KB) You must be logged in to download this attachment.
    • HORMANN HSE 2-868-BS Gate Remote Control: Red LED Only After Battery Change 20170503_103956.jpg (4.37 MB) You must be logged in to download this attachment.
  • #8 16451462
    2929
    Level 14  
    Posts: 248
    Rate: 61
    The first 6-pin circuit powered by a plus battery is marked D29. I don't know what this circuit is and whether you can buy it somewhere.

    Added after 4 [minutes]:

    Better photo
    Attachments:
    • HORMANN HSE 2-868-BS Gate Remote Control: Red LED Only After Battery Change 20170503_111125.jpg (649.62 KB) You must be logged in to download this attachment.
  • #9 16451623
    Anonymous
    Level 1  
  • #10 16452084
    2929
    Level 14  
    Posts: 248
    Rate: 61
    Yes, this is the case.
  • #11 16454963
    PROXIMA sj

    Radio controllers specialist  
    Posts: 516
    Help: 102
    Rate: 217
    The D29 is a pair of PNP and NPN digital transistors used to maintain power when a remote button is pressed - controlled by the processor. Datasheet in the attachment.
    If the processor is damaged - it is the end of the remote control, if the SX 1230 transmitter it can be replaced.
    How to check what is damaged?
    Apply the voltage from the 3V power supply and see what starts to heat after a while - if you do not have a thermal imaging camera, and you certainly do not have one, use a small-angle pyrometer or just your finger and then your nose.
    greetings
    PROXYMILIAN
    Attachments:
    • D29 Rohm.pdf (1.21 MB) You must be logged in to download this attachment.
    Company Account:
    PROXIMAsj
    Polna 23A, Toruń, 87-100 | Company Website: www.proxima.pl
  • #12 16455000
    Anonymous
    Level 1  
  • #13 16455197
    PROXIMA sj

    Radio controllers specialist  
    Posts: 516
    Help: 102
    Rate: 217
    My colleague Adamcyn is not right about D29 - it is as I wrote.
    I attach a photo of the housing and a fragment of the diagram.
    As for the methodology of looking for damage, it seems clearly described - damaged elements that consume too much electricity - heat up.
    greetings
    PROXYMILIAN
    Attachments:
    • HORMANN HSE 2-868-BS Gate Remote Control: Red LED Only After Battery Change Schemat.jpg (471.04 KB) You must be logged in to download this attachment.
    • D29 Rohm..jpg (18.93 KB) You must be logged in to download this attachment.
    Company Account:
    PROXIMAsj
    Polna 23A, Toruń, 87-100 | Company Website: www.proxima.pl
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  • #14 16455956
    Anonymous
    Level 1  
  • #15 16456375
    PROXIMA sj

    Radio controllers specialist  
    Posts: 516
    Help: 102
    Rate: 217
    Please,
    greetings
    PROXYMILIAN

    HORMANN HSE 2-868-BS Gate Remote Control: Red LED Only After Battery Change

    HORMANN HSE 2-868-BS Gate Remote Control: Red LED Only After Battery Change
    Company Account:
    PROXIMAsj
    Polna 23A, Toruń, 87-100 | Company Website: www.proxima.pl
  • #16 16456391
    Anonymous
    Level 1  
  • #17 16457009
    2929
    Level 14  
    Posts: 248
    Rate: 61
    After inserting a new battery, it seems that the remote control is working properly, it does not use any electricity in standby mode. I do not know if it will work on a new battery for a long time, but I resign from repairing and close the topic. Thank you all for your help.
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Topic summary

✨ The HORMANN HSE 2-868-BS gate remote control exhibited issues after a battery change, initially functioning with both red and blue LEDs lighting up, but later only the red LED remained active. Users discussed the remote's power consumption, confirming it should not draw power in standby mode. Suggestions included checking the battery quality, with the user confirming the use of a new Energizer battery. Further investigation revealed potential damage to internal components, specifically the D29 circuit, which consists of PNP and NPN transistors. The user ultimately decided against repair after the remote seemed to function correctly post-battery replacement, although concerns about long-term performance remained.
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