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Need A Lot Of Help

Discussion in 'Troubleshooting and Repair' started by blueeyes, Dec 13, 2018.

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  1. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    25,301
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    Jan 21, 2010
    Try the 2M range
     
  2. blueeyes

    blueeyes

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    Dec 13, 2018
    using the 2m range R5 = .778 one way and .412 the other and R4 = .095 both ways tks
     
  3. BobK

    BobK

    7,673
    1,684
    Jan 5, 2010
    R4 is definitely good. R3 is probably good, the incorrect readings are due to the rest of the circuit.

    Bob
     
  4. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    25,301
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    Jan 21, 2010
    I don't think it's profitable to go around measuring components at random at this stage. However, you have learned a valuable lesson when using a manual ranging multimeter -- If you are measuring something unknown, you need to start at the highest range and work downwards.

    If we suspect that the unit got wet and was operated while wet, then the first things to do are
    1. to check for signs of damage caused by this
    2. Determine if the board is safe to be cleaned (and by what)
    We have some the first, at least we have seen some suspicious areas. What I would like to see more are some photos of the board from all sides so I can tell if there's anything that could be damaged by the normal cleaning solvents. I'm especially interested in the LCD and how it is connected. I will review the pictures you've already provided in case I have missed any that you have posted showing the required details.
     
  5. blueeyes

    blueeyes

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    Dec 13, 2018
    Here you go guys some more pics and just to put you in the full pic (pardon the pun) this is a small 12v DC electronic fox caller with a micro sd card so no lcd etc, as I said it was switchable via the remote control but does not seem to be receiving, as the remote says signal sent , you can switch it on manualy via the small switch on the unit and a green led lights up but no sound etc etc , as I said it runs of 8 x AA cells thanks again for your inputs much appreciated 20190113_093748.jpg 20190113_093817.jpg 20190113_093825.jpg 20190113_093900.jpg 20190113_093910.jpg 20190113_093918.jpg 20190113_093748.jpg 20190113_093817.jpg 20190113_093825.jpg 20190113_093900.jpg 20190113_093910.jpg 20190113_093918.jpg
     
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