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  1. #1
    Join Date
    Jan 2008
    Location
    Moor & Dock- Leros
    Posts
    441

    Default Raymarine C70 Plotter

    Our aged C70 Plotter is playing up.
    Turned it on today for the 1st time this season and initially all was well. After a few minutes the screen went grey and flickered with black lines.
    I tried a factory reset but no improvement.
    I removed the unit and unplugged/ replugged the rear connections which made a small improvement in that I can see the map but still lots of flickering.
    Iím sure iíve seen this problem discussed on the forum before, so if anyone has a solution iíd be grateful.

    Thanks,
    John.

  2. #2
    Join Date
    Sep 2007
    Location
    East Med...
    Posts
    1,641

    Default Re: Raymarine C70 Plotter

    Press the screen around the frame. It may fix it. If the problem pesists take it to the raymarine people. Itís a simple fix for them.

  3. #3
    Join Date
    Mar 2006
    Location
    La Rochelle
    Posts
    32

    Default Re: Raymarine C70 Plotter

    I had a similar problem with a C80- it’s fairly common when they get old. It’s caused by a loose chip/ connector on the motherboard. I took it into raymarine who fixed it for what I considered a reasonable amount ( sorry, can’t recall how much)

  4. #4
    Join Date
    Jul 2006
    Posts
    4,659

    Default Re: Raymarine C70 Plotter

    They all do this eventually. The problem is very well known: it's a bad connection on a little ribbon cable that feeds the screen. Sometimes a few taps or gentle thumps around the screen can move it enough to get it connected again.

    If not - it's an old plotter, long long out of warranty. Open up the back, tiny screws with one under a "warranty void if removed" sticker. Carefully disconnect ribbon cable connectors and remove backmost "piggyback" circuit board. One screw and some clip-in tabs. GENTLY wiggle other ribbon cable connectors. Put rear circuit board back and power up before reinstalling in case. Will probably work OK - for a day, a month or a year or two.

    If you are unhappy about dismantling send it to somewhere like the Wareham Service Centre, or a local marine electronics specialist, but don't spend too much money on it: once this happens the problem tends to recur.
    Last edited by jwilson; 09-04-19 at 16:00.

  5. #5
    Join Date
    Jan 2008
    Location
    Moor & Dock- Leros
    Posts
    441

    Default Re: Raymarine C70 Plotter

    Thanks for the advice.
    I took it apart and reassembled and it’s now working ok.
    I couldn’t see how to disconnect the ribbon connectors- how does one get the connections apart?

  6. #6
    Join Date
    Jul 2006
    Posts
    4,659

    Default Re: Raymarine C70 Plotter

    Quote Originally Posted by JFowler View Post
    Thanks for the advice.
    I took it apart and reassembled and it’s now working ok.
    I couldn’t see how to disconnect the ribbon connectors- how does one get the connections apart?
    Can't remember, after multiple "fixes" mine now gone a few years ago. Remember it was fiddly: I think it involved pressing tabs with one tiny screwdriver whilst gently levering with another tiny screwdriver. Curiously I sold mine on Ebay as "for spares" with fault fully declared: bought by someone who wanted a new screen. Replaced with a B&G Vulcan 7. I preferred the Raymarine user interface but the Vulcan much brighter yet lower power consumption. The C70 was just not bright enough in sunlight.

    All the C series 70, 80, 120 have the same problem.

  7. #7
    Join Date
    Mar 2009
    Location
    UK, Hamble
    Posts
    503

    Default Re: Raymarine C70 Plotter

    I did exactly as per this video. It shows how to clamp the display connector tighter from both sides. The ribbon connectors are opened by lifting the long black tab (carfully not to break the little pivot pins at the end).
    The video is not in English but self explanatory.
    https://youtu.be/dMVkvRbRD0I

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