JVC GD-H4220US multi-sync monitor help needed - test-drb@ccmp.vtda.org

7 Feb 2000

--- Pete Turnbull &lt;pete(a)dunnington.u-net.com&gt; wrote:
...
  On Feb 7, 13:59, Ethan Dicks wrote:

 > Can anyone point me to a chart that has the older 9-pin RGB standard? 
...
  Here's the pinout from my Acorn Archimedes,
 which uses a pretty standard multisync pinout:

 Type: DE9

 Pin     Function
 ----------------
 1       red
 2       green
 3       blue
 4       composite sync
 5       optional vertical sync
 6       red ground
 7       green ground
 8       blue ground
 9       sync ground 
This is _very_ close to what I eventually found at pinouts.com...

NEC 9-pin Multisync: http://www.pin-outs.com/datasheet_58.htm
IBM 15-pin VGA:      http://www.pin-outs.com/datasheet_15c.html

The difference is that on the NEC 9-pin, 4 and 5 are H. Sync and V. Sync.

...
 From this information, my adapters are a) identical and
b) correct.  They do connect pin 4 on the 9-pin side to pin 13 and pin 5 to pin 14,
as one
might expect.   The analog wires and associated grounds are as expected.

I guess I'm down to either inverted sync or a defective monitor.

Thanks for the nudge in the right direction.

-ethan

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