Amiga monitor on GS problems

[Brian Wiser <brwiser@xmission.com>]

	    I had a cable built from the pinouts below that is supposed to
connect a Magnavox 8CM515 monitor (aka old Commodore 1084) to an apple
IIgs.  When I connect my cable, the screen is solid in 40 column mode and
the colors are wrong.  Switching to any other mode results in problems
with the horizontal and vertical sync.  Perhaps the pinouts on the 1084
are incorrect, as there were several models released.

		Could someone please e-mail me and let me know if they ever personally
had a cable built from these pinouts (or others) that work?  Are there
any errors in these?  Thank you very much for your help.



pin assignment of 1084S monitor:
 
        pin #           analog RGB signal
         1                 ground
         2                 ground
         3                 red
         4                 green
         5                 blue
         6                 not used
         7                 composite sync.
         8                 horizontal sync.
         9                 vertical sync.
 
             ____________________
            \ 5   4   3   2   1 /
             \                 /
              \ 9   8   7   6 /
                -------------
 
 
pin assignment of IIGS RGB connector:
 
        pin #             signal
         1                ground (for red ?)
         2                red
         3                composite sync
         4                no connection
         5                green
         6                ground (for green ?)
         7                -5 V
         8                +12 V
         9                blue
         10               no connection
         11               audio output (not used)
         12               NTSC/PAL composite video
         13               ground (for blue ?)
         14               no connection
         15               not used
                          system ground
                             |
                             |
                   __________|_____________________________
                   \ 8    7    6    5    4    3    2    1 /
                    \  15   14   13   12   11   10    9  /
                     ------------------------------------
 
 
THE PIN ASSIGNMENTS...
 
On the //GS RGB Monitor Port                  On the 1084S ANALOG RGB In
       PIN NUMBER                                     PIN NUMBER
 
           2..............................................4
     (Analog RED)                                   (Analog RED)
 
           5..............................................1
     (Analog GREEN)                                (Analog GREEN)
 
            9.............................................5
      (Analog BLUE)                                (Analog BLUE)
 
            3.............................................2
     (Composite SYNC)                            (Horizontal SYNC)
 
            1.............................................3
    (Signal GROUND Red)                               (GROUND)
 
            6.............................................3
   (Signal GROUND Green)                              (GROUND)
 
           13.............................................3
    (Signal GROUND Blue)                              (GROUND)
 
            4.............................................3
     (No Connection)                                  (GROUND)
 
 
*** ATTENTION:
 
Although there are six pins on the Commodore RGB connector,
DO NOT hook up Pin 6 (Vertical Sync) to the GS 15 Pin connector.
Just chop it off.