Replace TV lift wireless receiver

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  • Hi everybody,

    I could use some help with something I'm stuggeling with.

    I've got a TV lift with a wireless remote that sents a signal to a wireless receiver. I want to replace the receiver with Shelly 2.5 so I can control the lift with phone.

    I've bought a remote with a cord and connected this instead of the receiver and this worked. Then I've cut the cords and connected the wires to the Shelly:

    V to N

    G to L

    M1- to 01

    M1+ to 02

    It does get power, I can connect with the app, but nothing happens with the TV lift when I press up or down in shutter mode.

    Your advice is greatly appreciated.

    With kind regard,

    Arthur

  • Welcome to the forum!

    Unfortunately, you didn’t show us the other side of the printed board. And it would be brilliant to give some more details about the lift and its components (e.g. pictures, type numbers, manufacturer…)

    And by the way: The forum does contain a lot of examples AND has a search function: Simply mark ‘forum’ or ‘all’ and type ‘TV lift’ in the search menu…

    „Habt Geduld. Alle Dinge sind schwierig, bevor sie einfach werden!“ (aus Frankreich)

    „Nothing in life is to be feared, it is only to be understood.“ (Marie Curie, 1867-1934)

    „Comment is free, but facts are sacred“ (C.P. Scott, britischer Verleger)

  • Thank you so much for the reply!

    I did search the forum, but I couldn't find any related subject, or did I miss something?

    In the attachment is a picture of the other side of the printed board. The lift itself is build into a cabinet, so it's hard to take pictures of. But the type is a DQ TV lift 505 (BTVHZ505). I couldn't find any information about the seperate components though. If it's the only way I can open up the cabinet and try to take some pictures.

    Can you do anything with this information? I hope to hear from you and thank you in advance.

  • Many thanks for the picture! Obviously, the two button switches are working as a commutator to reverse the polarity of the DC motor:

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    Thus, a Shelly plus 2PM should emulate this circuit. To achieve this, the Shelly has to be coupled with a commutator relay, which consists of two standard relays with NO/NC contacts and a special wiring. With the key words „linearantrieb“ or „polwender“ or „Hühnerklappe“ or „TV-Lift“, you‘ll find a lot of plans and sketches. Unfortunately, most of these descriptions are in German language. The only post in English is this one:

    thgoebel
    20. März 2023 um 21:27

    „Habt Geduld. Alle Dinge sind schwierig, bevor sie einfach werden!“ (aus Frankreich)

    „Nothing in life is to be feared, it is only to be understood.“ (Marie Curie, 1867-1934)

    „Comment is free, but facts are sacred“ (C.P. Scott, britischer Verleger)

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