Troubleshooting the Root Cause failure on the Sony DHR1000 Digital VCR

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  • @NunYa953
    @NunYa953 4 หลายเดือนก่อน

    When i saw the macro vision signal, i seriously thought you were pulling some kind of prank. 😂 Never seen anything like that

    • @12voltvids
      @12voltvids  4 หลายเดือนก่อน

      Nope, thats what plays out of analog ports. Something on digital board is fubar. As long as firewire works I'm good.

  • @claudiogatti5529
    @claudiogatti5529 5 หลายเดือนก่อน +1

    Even on one of my DHR 1000 I have problems with intermittent in/out on the analogue outputs (not the one in the video, however). I solved it by externalizing the in/outs through a bidirectional analogue/dv converter (such as Pyro AV Link or Canopus ADVC 100/300) which passes the flow through the firewire socket.

  • @spikester
    @spikester 26 วันที่ผ่านมา

    I suspect its one of the chips. The substrate that encapsulates the silicon & bond wires can age like glue and cause short circuits.

    • @12voltvids
      @12voltvids  26 วันที่ผ่านมา

      Likely

  • @markmarkofkane8167
    @markmarkofkane8167 5 หลายเดือนก่อน

    Intriguing and interesting.
    Makes me wonder if that isn't built in to prevent recording the analog output unless it's a broadcast? I'll watch more. I'm at the beginning.

    • @12voltvids
      @12voltvids  5 หลายเดือนก่อน +2

      All digital players the macrovison is generated in the video chip. I can set a flag during record that. Turns it on to prevent analog copies from being made.

  • @Dillisive
    @Dillisive 5 หลายเดือนก่อน +1

    Whats that car horn like sound?

    • @12voltvids
      @12voltvids  5 หลายเดือนก่อน

      Fans in the machine

  • @Sans_Solo_
    @Sans_Solo_ 5 หลายเดือนก่อน

    Would hitting the board with the old heat do anything?

    • @12voltvids
      @12voltvids  5 หลายเดือนก่อน

      I don't want to risk fu*king it up if you know what I mean. I have a fully functional digital vtr that records from analog and records / plays digitally through the firewire port. That is all I need. If the digital output was not functional then I would be trying things bit as long as the dv out works it is a 100% usable machine as I can dump to computer of burn a DVD directly from this one. I'm going to do a demo of it with the little Sony dvd direct creator probably tomorrow. To see the quality it can turn out. I picked up 500+ dvdr blanks for 20 bucks. Time to use 1 for a test video. Will dump one of my personal dv tapes and see how good it looks on DVD.

  • @zhaohaigaogu7821
    @zhaohaigaogu7821 5 หลายเดือนก่อน

    It seems to be difficult because if you touch it when it's wet, it may switch to another control. I think the previous repair person touched something with the power on and caused a short circuit.

    • @12voltvids
      @12voltvids  5 หลายเดือนก่อน

      May not have ever been serviced before. It was like this when I bought it.

  • @tacofortgens3471
    @tacofortgens3471 5 หลายเดือนก่อน

    Piracy protection I think, sp an employee cannot transfer the tape over.. my bet this a feature not a problem

    • @12voltvids
      @12voltvids  5 หลายเดือนก่อน

      All the digital formats had the ability to protect the content. Consumer machines like this typically could not set the protection flag. Just like DAT tape decks. The consumer models were locked at 1 copy a digital source. The pro decks (tascam for example) in the menu i can select no copy protect, allow 1 copy or mo copies period. The same applies for dv tape. When recording a master edit, the edit deck can be set so no additional copies analog or digital can be selected. This deck you can't set that option, professional decks can but this one has to support that flag and turn the macrovision on for the analog output if the flag is set on the tape.

  • @DADEMANA
    @DADEMANA 5 หลายเดือนก่อน +1

    nice

  • @azshaw123
    @azshaw123 5 หลายเดือนก่อน

    This reminds me of something that i could not work out quite a long time ago and to be honest i still cannot, whilst copying a pre recorded copy of a nightmare on elm street from a sony betamax to another sony betamax from a rental shop for a friend of mine, this was in the late 80's, the copy came out perfect, but when my friend tried to copy the copy of the film that i had just done for him from his sony betamax to a panasonic vhs for one of his friends, the macrovision signal was still there and it would not play properly, and the reason he used the copy of the film on the copied beta tape was that we all know that using two sony betamax's to copy a pre recorded film defeats or bypasses macrovision and that you cannot record a pre recorded film onto a vhs recorder because of macrovision, how the hell did the copy of the film on the copied betamax tape still have the signal on it when it itself was the copy?.......Does anyone know exactly how this works??? Do you know Dave? As we know they are analogue machines, nothing digital here.

    • @12voltvids
      @12voltvids  5 หลายเดือนก่อน +2

      Betamax didn't eliminate macrovision they just ignored it. The signal was still there.

    • @spikester
      @spikester 27 วันที่ผ่านมา

      It simply copied the entire signal, macrovision and all. You will find the same on early VHS machines before the legislated that the AGC in newer VHS must conform and ruin an analog recording when macrovision is present. Not sure how the AGC functioned in previous betamax/VHS but they certainly changed its behavior of the AGC to be laggy to respond than it was previously. Of cource 12v will know a lot more about the interesting topic of macrovision.

  • @mikecassap
    @mikecassap 5 หลายเดือนก่อน

    Dave just for peace of mind check the power supply for ripple had a similar problem on a a nec dx 3000 digital board ended up being power supply what a head f#£k it turned out to be

    • @12voltvids
      @12voltvids  5 หลายเดือนก่อน +1

      I probably will go thorough it before I put it back together. As we all know power supplies can cause all kinds of weird problems. The dc looks clean on the scope but I haven't gone through it yet and we all know how wonderful these power supplies have been over the years.

    • @MrStevenAlpert
      @MrStevenAlpert 5 หลายเดือนก่อน

      If you can find a service manual, you may be able to confirm whether the voltages are not just clean, but correct. My own gut feeling is that there’s either a small crack on the board and some signal is not making it, or there’s some of the famous conductive glue (the white glue that turns brown) somewhere that is causing unexpected connection(s).