Composite video to RF converter led protect help

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  • ivtec
    Badcaps Legend
    • Dec 2008
    • 1967
    • USA

    #1

    Composite video to RF converter led protect help

    Hi guys i got this composite video to RF to send tv signal throughout the whole house with coaxial cable , but this RF converter has no led ,i'd like to add a led ,it has a 5vdc power supply input ,i have a few led in my scrap, can you guys help to add it to the circuit ,i send pics of the circuit,do i need to add a resistor to the led to make it work,thanks
    Attached Files
  • budm
    Badcaps Legend
    • Feb 2010
    • 40746
    • USA

    #2
    Re: Composite video to RF converter led protect help

    Just use 150 ~ 220 Ohms 1/4W in series with the LED and then connect it to the 5V supply line with proper polarity, that should be more than good enough.
    Never stop learning
    Basic LCD TV and Monitor troubleshooting guides.
    http://www.badcaps.net/forum/showthr...956#post305956

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    http://www.badcaps.net/forum/showthr...999#post300999

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    • ivtec
      Badcaps Legend
      • Dec 2008
      • 1967
      • USA

      #3
      Re: Composite video to RF converter led protect help

      Originally posted by budm
      Just use 150 ~ 220 Ohms 1/4W in series with the LED and then connect it to the 5V supply line with proper polarity, that should be more than good enough.

      Thanks budem; like si see pic attach.

      Comment

      • ivtec
        Badcaps Legend
        • Dec 2008
        • 1967
        • USA

        #4
        Re: Composite video to RF converter led protect help

        Thanks budm i appreciate it ,like so in the pic?
        Attached Files

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        • stj
          Great Sage 齊天大聖
          • Dec 2009
          • 30994
          • Albion

          #5
          Re: Composite video to RF converter led protect help

          that's a bit bright IMO, i would use 330 to 470ohms.

          Comment

          • ivtec
            Badcaps Legend
            • Dec 2008
            • 1967
            • USA

            #6
            Re: Composite video to RF converter led protect help

            Originally posted by stj
            that's a bit bright IMO, i would use 330 to 470ohms.
            Thanks stj; not exactly what is in the scheme but i've used what was suggested by Budm, 220R and see work done in the pic.thanks guys.
            Attached Files

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