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Conference hydra::amiga_v1

Title:AMIGA NOTES
Notice:Join us in the *NEW* conference - HYDRA::AMIGA_V2
Moderator:HYDRA::MOORE
Created:Sat Apr 26 1986
Last Modified:Wed Feb 05 1992
Last Successful Update:Fri Jun 06 1997
Number of topics:5378
Total number of notes:38326

3900.0. "Help with SuperGen and Prov Video Plus Gold" by TROA02::ITHOMSON () Tue Jul 03 1990 16:27

    Hi guys,
           this is my problem.
    
    I just purchased the genlock SuperGen.  I hooked it up to an old
    tape editing system.  The problem I am having, is that when the
    tape controller does any fast fowarding or pause, or any editing
    stuff, it causes my amiga monitor screen to be distorted.
    
    For example if I fastforward the source tape ( which goes into the
    genlock ) my amiga screen (the whole screen) scrolls to the right.
     
    amiga Screen    
                 \
                  \  (------------)
                     |            |
                     |            | --> scrolls this way
                     |            |
                     (------------) 
    
    This does not really cause a problem with the paint programs, but
    when I try to use Pro Video Plus Gold, the screen goes black, genlock
    LED goes Red and I have to re-boot.
    
    
    Anyone please help.
    
    
    COnfiguration:
    
       Amiga 2000HD with 1MEG
    
       Latest version of SuperGen and Pro Video Plus Gold
    
       Two JVC 3/4" VTRs with a panasonic editor.
    
       
    Ian Thomson
T.RTitleUserPersonal
Name
DateLines
3900.1MQOFS::DESROSIERSLets procrastinate....tomorrowWed Jul 04 1990 16:4612
    This is normal, all genlocks do that, at least the Amigen, the C=2300
    and the Supergen, these are the ones I tried.  When you put a genlock
    on the Amiga, it syncs the Amiga TO the video source, since in FF or
    REW this clock source is not stable, the screen breaks up.  I don't
    know what could cause Pro Video to lock up unless they use timing loops
    that get screwed up when the clock is jittery.  Pro Video is a nice
    package, but since they use their own fonts, and don't have accentuated
    characters, it is of little value to me since I can't display french
    titles.
    
    Jean
    
3900.2maybe a TBC is the answerSALEM::LEIMBERGERThu Jul 05 1990 08:3515
    re -1. You have that right. I have the same problem with my 
    SuperGen 2000s. I have noticed that if I have a video source coming
    into the amiga,and am in DpaintIII my screen will become ghosted.If
    I try to shut dpaintIII down I'll crash. However if I shut down
    the video source I can exit ok. I just purchased Broadcast Titler,and
    am getting to the point where I will be using it with the supergen.
    BT has the ability to controll the supergen automatically according
    to the effects you chose for screens. Another thing you will want
    to be careful about is your video source. Make sure you black your
    tapes before using them. Any unstable video source will break up
    the amiga screen. I have been able to work around this problem most
    of the time. I think the answer is to put a TBC in line between
    the incoming video,and the amiga,but I don't have the funds available
    at this time.
    								bill
3900.3What is TBC?TROA02::ITHOMSONThu Jul 05 1990 19:056
    Forgive my ignorance, but what is a TBC?
    
    And what cost am I looking at?
    
    Ian Thomson
    
3900.4Time Base CorrectorSALEM::LEIMBERGERFri Jul 06 1990 11:029
    TBC=Time Base Corrector. I haven't priced them yet but all I read
    indicates $500+ . I haven't bothered to look into it because at
    the present all my funds went for the supergen,and other video
    equiptment. What happens is the input to the TBC is put out at a
    very steady stable rate. TBC's can be analog,or digital. I imagine
    all the latest will be digital. You may want to put a video switch
    on your input line,and simply switch it when you Fast Forward. I
    still haven't tried genlocking with Broadcast Titler.
    							bill