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  1. #1
    Join Date
    Oct 2021

    Identify a broken zener diode?

    Hello, all
    Something about Zener diode. I have found that the door lock switch of my '98 Hyundai Accent has been damaged by water (sealing issues). I used Wurth Contact OL to remove rust but one of the components of the board has got broken while I was trying to remove the rests of the product with a piece of paper. I believe I can carry out the soldering work but I cannot identify the broken component. My searches (according to Testing and Distinguishing Zener Diodes Overview: https://www.kynix.com/Blog/How-to-Te...er-Diodes.html) lead me to believe it is a zener diode, but what kind? There are no markings on it.

    I have thought about asking the local shop to give me a selection of the most common types and go the trial and error way, but I am afraid I could fry other thing... So, could someone guess, by the pictures of the board, what kind of component I need to have all the doors of my car closed in one move like in the old good times?

    Thank you in advance.
    Attached Thumbnails Attached Thumbnails PCB.jpg   PCB Back.jpg  

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