Demodulated RF to Composite (Pocket TV Hack)

Discussion in 'General Electronics Chat' started by jc0r, Sep 5, 2015.

  1. jc0r

    Thread Starter New Member

    Oct 15, 2013
    Hi all

    Bit of a strange project here, but i am trying to make a device that can demodulate the now defunct analogue UHF TV signal and convert it to composite to be used with a video transmitter such as

    I already own one of these which does the job, however, i am trying to make the unit battery powered and as small as possible.

    I have an old Casio pocket TV such as the one in this YouTube teardown video

    This unit is ideal size and draws very little in the way of power. I am wondering if anyone knows if it would be possible to connect a Yellow composite lead to Casio's board to extract the demodulated video image to an external source?

    Many thanks
  2. AnalogKid

    Distinguished Member

    Aug 1, 2013
    Probably not. While that unit was built for analog video, it is almost all digital inside. There probably is a composit video point in the circuits, but that is no guarantee that it is at a standard level. Also, it will be very difficult to find without a schematic.