Apple Portrait Display: Specs and Pin Assignments

This article gives the specifications for the Apple Portrait Display monitor along with pin assignments for input signal jack.

Picture Tube           15-inch (38.1 cm) diagonal
                      Phosphor EIA Type B4 (White)
                      High-contrast antiglare

Input Signal           Video:  RS-343 standard
                      Sync:   Separate sync, negative
                              going, TTL

User Controls          Power Switch (back panel)
                      Brightness, with detent reference (right side)
                      Contrast (right side)

Scanning Frequencies   Horizontal  68.85 kHz
                      Vertical    75.0 Hz
                      Dot Clock   57.2832 MHz

Resolution             640 (H) dots by 870 (V) lines

Active Video           Adjusted at the factory to produce an
Display Area           active video area of 8.0-inch (203.2 mm) horizontal
                      by 10.8-inch (276.1 mm) vertical. The remainder of
                      the screen is used for the dark border around
                      the display.

Weight                 35 lbs (16 kg), approximately


Power Requirements     75 watts maximum, all line conditions

Input Voltage          Operating range  85-270 Vrms,
                      self-configuring
                      Frequency        50-60 Hz

Operating Ambient      10 degrees C to 35 degrees C
Temperature               (50 degrees F to 95 degrees F)

Operating Humidity     90% maximum, non-condensing

Operating Altitude     10,000 feet (3,000 m) maximum

Fuse Protection        The monitor contains internal power line
                      fuse protection. This fuse should be
                      replaced with the same type be a qualified
                      service technician.

Warm-up Time           20 minutes to meet all specifications


Pin Assignments For Input Signal Jack (D-25 Shell Style)

  Pin     Function
  A1      Monochrome video
  A2      75 Ohms #1
  A3      75 Ohms #2
  1       Hsync return
  2       Vsync
  3       Sense #3
  4       Sense return
  5       Csync
  6       Hsync
  7       Vsync return
  8       Sense #2

  9       Sense #1
  10      Csync return
  Shell   Shell ground

           A1   1
           |    | 2
           |    | | 3
           |    | | | 4
           |    | | | | 5
      -----|----|-|-|-|-|--------------
      \\    |    o o o o o    _   _    /
Shell--\\  |o|               |o| |o|  /
        \\  -   o o o o o     |   |  /
         ------|-|-|-|-|-----|---|--
               6 | | | |     |   A3
                 7 | | |     A2
                   8 | |
                     9 |
                       10


Published Date: Feb 18, 2012