18.9.7 ST to Commodore 1084

Atari to Commodore 1084 Monitor

Atari to SVideo

Pin  Name   Description           Atari DIN Plug

1    GND    Ground (Y)            pin 2
2    GND    Ground (C)            pin 2
3    Y      Intensity (Luminance) pin 1
4    C      Color (Chrominance)   pin 5

First off, I haven't tried this as I have nothing that has a S-Video in/output. However, I see no reason why this won't work though but as always, your on your own. I have received information that this works just fine.

First you will need a S-Video cable. Your local radio dealer has the cables in 6 and 12 foot lengths. You will need to cut a cable in half or cut off one end and replace it with a 5 pin DIN plug. (You might be able to find cables elsewhere, I just haven't looked)

OK, to build this you will need to connect the center conductor of the mini coax from pin 3 of the S-Video connector to pin 1 of the 5 pin DIN plug and the center conductor of the mini coax from pin 4 of the S-Video connector to pin 5 of the 5 pin DIN plug. The shield of the mini coax connects to pin 2 of the 5 pin DIN plug.

As usual, check all connections. Now hook it all up and see if it works and let me know if it does.

Commodore 1084
6 PIN DIN FEMALE at the Monitor

Pin  Name      Description

1    G         Green
2    HSYNC     Horizontal Sync
3    GND       Ground
4    R         Red
5    B         Blue
6    VSYNC     Vertical Sync

Commodore 1084 & 1084S (Digital)
8 PIN DIN 'C' FEMALE at the Monitor

Pin  Name      Description

1    n/c       Not connected
2    R         Red
3    G         Green
4    B         Blue
5    I         Intensity
6    GND       Ground
7    HSYNC     Horizontal Sync
8    VSYNC     Vertical Sync

Commodore 1084d & 1084dS
9 PIN D-SUB FEMALE at the Monitor

Pin  Name    Analog Mode    Digital Mode

1    GND     Ground         Ground
2    GND     Ground         Ground
3    R       Red            Red
4    G       Green          Green
5    B       Blue           Blue
6    I       n/c            Intensity
7    CSYNC   Composite Sync n/c
8    HSYNC   n/c            Horizontal Sync
9    VSYNC   n/c            Vertical Sync

Last but not least, you have to connect only pins with the SAME signal to the SAME pin of your 260, 520 or 1040. Thats all and it will work. Use only shilded cable. Connect one end of the shild to GND. Do not use shild as signal GND!!