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- Macintosh Display Cards 4•8 & 8•24 and third-party monitors
-
- What do I need to determine if my third-party monitor is compatible with an
- Apple video display card?
- ___
-
- The Macintosh® Display Cards 4•8 & 8•24 support any monitor that meets one of
- the following specifications:
-
- - - - - - - MHz - - - - -
- Sense pins Hor x Vert Dot Vert Horiz
- 10 7 4 Display Pixels Clock Refrsh Refrsh
- ---------- ---------------------- ---------- ------- ------ ------
- 0 0 0 21-inch Color Monitor 1152 x 870 100 75 68.7
- 0 0 1 Apple Portrait Display 640 x 870 57.2832 75 68.9
- 0 1 1 Apple Two-Page Monitor 1152 x 870 100 75 68.7
- 1 1 0 12” Apple
- Monochrome Monitor 640 x 480 30.24 66.7 35.0
- 1 1 0 13” AppleColor
- RGB Monitor 640 x 480 30.24 66.7 35.0
-
- 0 - Grounded 1 - Not Connected
-
- Note that sense pins 4, 7, and 10 are referred to as SENSE0, SENSE1, and
- SENSE2 in video connector pinout tables, such as the table in “Macintosh
- Display Cards 4•8 and 8•24 Developer Note.
-
- Here are the pinouts for the Macintosh Display Cards:
-
- Pin Description
- --- -----------
- 1 Red Video Ground
- 2 Red Video
- 3 Composite Sync
- 4 SENSE0
- 5 Green Video
- 6 Green Video Ground
- 7 SENSE1
- 8 Not Connected
- 9 Blue Video
- 10 SENSE2
- 11 Composite Sync and Vertical Sync Ground
- 12 Vertical Sync
- 13 Blue Video Ground
- 14 Horizontal Sync Ground
- 15 Horizontal Sync
- Shell Chassis Ground
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- ©Apple Computer, Inc. 1985-1991
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