S-Video, SCART and other video/audio cables scheme  > Apple pinouts
Use this adapter to connect a standard VGA (or higher) monitor to your Apple Macintosh.

* Connection as shown wil allow multiple resolutions up to 1152x870. Reverse diode to limit resolutions to 1024x768. The Mac Centris, Quadra, and later systems frame buffer determines what type of display is attached to the video connector by examining the state of 3 sense line pins.

The Mac Quadras, Centris series, and later models should support any display, whether from Apple or from another vendor, that meets one of the following specifications:


STANDARD SENSE CODES (1 or more of the sense pins grounded):

Display Sense Pins Horiz & Vert Band
Width
Vert
Refrsh
Horiz
Refrsh
  10 7 4 Pixels (MHz) (Hz) (KHz)
Apple 21 Color 0 0 0 1152 x 870 100 75 68.7
Apple Portrait 0 0 1 640 x 870 57.2832 75 68.9
12 AppleColor RGB 0 1 0 512 x 384 15.6672 60.15 24.48
Apple 2-page Mono. 0 1 1 1152 x 870 100 75 68.7
NTSC (To produce a color NTSC signal, an RGB-to-NTSC converter is required.) 1 0 0 underscan-512 x 384 12.2727 59.94 15.7
1 0 0 overscan-640 x 480 12.2727 59.94 15.7
13 Apple Hi-Res Mono 1 1 0 640 x 480 30.24 66.7 35.0
13 AppleColor
Hi-Res RGB
1 1 0 640 x 480 30.24 66.7 35.0
Apple 16 Color Disp.   832 x 624 57.63 75 75
Portrait Color,
such as Radius
1 0 1 640 x 870 57.2832 75 68.9
EXTENDED SENSE CODES (enabled by not grounding any sense pins)
  Sense Pins  
4-10 10-7 7-4
16 color, such as
E-Machines
0 1 1 832 x 624 57.2832 75 49,7
PAL: PAL has two wiring options, using the extended sense pin configuration. To produce a color PAL signal, an RGB-to-PAL converter is required.
PAL option 1 0 0 0 underscan- 640 x 480 14.75 50 15.625
        overscan- 768 x 576 14.75 50 15.625
PAL option 2 1 1* 0 underscan-640 x 480 14.75 50 15.625
        overscan- 768 x 576 14.75 50 15.625
(*Note: This PAL option also requires a diode between pins 10 and 7, with the cathode on 10)
VGA 1 0 1 640 x 480 25.175 59.95 31.47
Super VGA 1 0 1 800 x 600 36 56 35.16
(To enable Super VGA after configuring the sense pins and connecting the monitor for VGA, open the Monitors control panel and select Options. Choose Super VGA from the list and restart your system.)
19 color 1 1 0 1024 x 768 80 75 60.24
No external monitor
(video halted)
1 1 1        

Notes:

1) Sense pins 4, 7, and 10 are referred to as MON.ID1, MON.ID2, and MON.ID3 in the Macintosh pinout table or SENSE0, SENSE1, and SENSE2 in pinout tables for the video connectors. A sense pin value of 0 means that pin should be grounded to the C&VSYNC.GND signal (pin 11); a value of 1 means do not connect the pin.

2) Extended sense codes will be examined if the following sense code is detected: 1 1 1 (no sense pins grounded).

 

NOTE for extended sense codes: Sense pin pair value of 0 means those pins should be tied together (as opposed to grounding 10, 7, or 4 to pin 11); value of 1 means leave open. DONT wire any of these pins to ground.

15 pin highdensity D-SUB female connector layout
15 pin highdensity D-SUB female connector
at the monitor cable
15 pin D-SUB male connector layout
15 pin D-SUB male connector
at the mac computer
According to 3 reports in our database (3 positive and 0 negative) this pinout should be correct.

Is this pinout
Source(s) of this and additional information: saragossa.net
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