Let's connect your SUN monitor to a PC/AT machine!!

to Japanese
7th May 2001 separate English page

Because there are SUN monitors out of use, I connected a Sun monitor to a PC/AT machine.
The monitor is following:

Model:GDM-20D10
Video Setting:1280x1024@75Hz (Windows 95 Japanese version)

Some Sun monitors require fixed frequency sync signals. But Windows and XFree86 can set properties of sync signals. So, Sun monitors can connect PC/AT machines and use with Windows/Linux/FreeBSD etc...

Parts

a 13w3 connector (female)
a D-SUB15mini connector (female)
a shell of connector
a 74HCT86 or two 100-Ohm resistors

References

http://u2.alan.co.jp/%7Ekoba/suncrt/13w3-vga/ connector layout
http://www.wakhok.ac.jp/~kanayama/system/sundisplay.html a example in GDM20E20
http://home.iae.nl/users/leibbran/sunmon/sunmon.htm useful information. and link to this page :p

My Adapter

This photograph is the adapter made by me.
my adapter

use connector-shell, and it's cool! use connector shell!!

Connections

Connector of SUN monitor is type 13W3.
a schematic of the connection

The blue block is following. and I provide two methods, you can select the method.
The criteria of choice is

If your video-card supports DCC+5V (9 pin), you should choose case 1.
Otherwise and If you want to make easily, you should choose case 2.

74HCT86 is four 2 inputs-XOR CMOS gates that working in TTL-level.
inside blue block

Added Information(15 Apr. 2000)

I was asked from Mr.Honda "tell me how to use in 800x600@DirectX",
I replied "If video-driver don't permit setting of DirectX, it's diffilcult."
Several days after, Mr Honda mailed me "it Worked!!"
(Mr. Honda use Matrox's vga card)

The mail from Mr.Honda is following:

I mailed to SONY "Are there good drivers?", and I recieved replied mail,
Answer by SONY:
GDM-20D10 specifications
      Horizonal frequency:62 - 81 kHz
      Vertical frequency:48 - 165 Hz
Thus,this monitor can't display in booting Windows.
Suitable setting are
      1024x768/85Hz(Fh=68.7kHz)
      1280x1024/75Hz(Fh=80kHz)
      1600x1200/60Hz(Fh=75kHz)
  If your monitor work, There is no need to use the "Driver" you asked.

Settings for XFree86(18 June 2000)

In Windows, We can adjust the setting of VGA-cards with GUI. But In XFree86, it's difficult.
So, I give examples.
[Monitor] Section of XF86Config file is following:
(example, in Debian, the location of XF86config is "/etc/X11/XF86Config")

1152x900

Section "Monitor"
   Identifier      "Primary Monitor"
   VendorName      "Unknown"
   ModelName       "Unknown"
   HorizSync       31.5-82
   VertRefresh     74-76
Modeline "1152x900" 108.00 1152 1186 1314 1504 900 912 915 945
EndSection

1280x1024

Section "Monitor"
   Identifier      "Primary Monitor"
   VendorName      "Unknown"
   ModelName       "Unknown"
   HorizSync       31.5-82
   VertRefresh     74-76
   Modeline "1280x1024" 135.00 1280 1328 1472 1684 1024 1027 1030 1064
EndSection

Settings for Other Display Cards (Dec 29 2000)

I recieved settings for voodoo3 2000 (16M) from Mr.Abdul Rahman Rasedin.(11 Nov 2000)
shown only Modeline.

Modeline "1024x768" 85 1024 1044 1164 1316 768 780 783 81
Modeline "1152x900" 108 1152 1186 1314 1504 900 912 915 945
Modeline "1280x1024" 110 1280 1340 1524 1716 1024 1025 1028 1054
Modeline "1600x1200" 162 1600 1664 1856 2160 1200 1201 1204 1250

And I recieved a setting for GeForce256 DDR-DVI from Mr. Kayin. (29 Dec 2000)
He uses the monitor with XFree86 4.0.2.
shown only Modeline.

Modeline "1600x1200" 162 1600 1664 1856 2160 1200 1201 1204 1250 -hsync -vsync

Thank you.

Link (Jan 19 2003)

http://www.uglypeople.co.uk/sun_monitor/ useful settings !!