mrapple@quack.sac.ca.us (Nick Sayer) (06/14/91)
I have here a Hitachi P-50 "el-cheapo" BW tv. I've taken the back off and looked around without luck (yes, I have been EXTREMELY careful. I know how a CRT works) for a spot on the circuit board where I can find the demodulated NTSC video to pull out to an RCA jack. If anyone has any helpful info, I'd be grateful. Thanks. If it helps, the only designation I can find on the board is SU-A-P2594052. Interestingly enough, it appears to me that the entire first IF stage is mounted on the channel knobs themselves. The antenna connectors have ribbon cables going into little boxes mounted on the knobs. The boxes have a piece of coax and a pair of wires going to the main PCB. I'm quite paranoid about this project, since the PCB seems to mingle the HV paths helter-skelter among the lower voltage stuff. I would, however, like to use it to pull out demodulated video. Alternately, if these little boxes are in fact the first IF stage, then obtaining a pair of them and building a wide-band AM detector stage shouldn't be too tough, should it? -- Nick Sayer | Official Scapegoat for the | RIP: Mel Blanc mrapple@quack.sac.ca.us | MC68HC11 Mailing List. | 1908--1989 N6QQQ | To subscribe, send mail to | May he never 209-952-5347 (Telebit) | mc68hc11-request@quack.sac.ca.us | be silenced.