4033 LX  (250-5130)                Pinouts              Faxback Doc. # 1646

Video Port Connector:

┌──────────┬───────────────────────────────────────┐
│Pin       │        Function                       │
├──────────┼───────────────────────────────────────┤
│1         │        Red Video                      │┌────\
│2         │        Green Video                    ││  6   \
│3         │        Blue Video                     ││    11 │
│4         │        Monitor ID Bit 2 (not used)    ││1      │
│5         │        Ground                         ││  7    │
│6         │        Red Return (ground)            ││    12 │
│7         │        Green Return (ground)          ││2      │
│8         │        Blue Return (ground)           ││  8    │
│9         │        Key (no pin)                   ││    13 │
│10        │        Sync return (ground)           ││3      │
│11        │        Monitor ID Bit 0 (Not Used)    ││       │
│12        │        Monitor ID Bit 1 (Not Used)    ││    14 │
│13        │        Horizontal Sync                ││4      │
│14        │        Vertical Sync                  ││ 10    │
│15        │        Not Used                       ││    15 │
│          │                                       ││5     /
└──────────┴───────────────────────────────────────┘└────/

Monochrome-type monitors use Green Video for all video input and ignore
Red Video and Blue Video.

Monitor ID Bits are Not Used.  The monitor type is determined when your
system is turned on.

┌─────────────────────────────────────────────────────────┐
│Video Feature Edge Connector Pinout                      │
├───────────────────────┬─────────────────────────────────┤
│Front                  │Back                             │
├───────────────────────┼─────────────────────────────────┤
│Pin      Function      │Pin       Function               │
├───────────────────────┼─────────────────────────────────┤
│Y1       C0 color bit 0│Z1        GROUND                 │
│Y2       C1 color bit 1│Z2        GROUND                 │
│Y3       C2 color bit 2│Z3        GROUND                 │
│Y4       C3 color bit 3│Z4        SELECT INTERNAL VIDEO  │
│Y5       C4 color bit 4│Z5        SELECT INTERNAL SYNCS  │
│Y6       C5 color bit 5│Z6        SELECT INTERNAL DAC    │
│Y7       C6 color bit 6│Z7        NOT USED               │
│Y8       C7 color bit 7│Z8        GROUND                 │
│Y9       DAC CLOCK     │Z9        GROUND                 │
│Y10      DAC BLANKING  │Z10       GROUND                 │
│Y11      EXT HORZ SYNC │Z11       GROUND                 │
│Y12      EXT VERT SYNC │Z12       NOT USED               │
│Y13      GROUND        │Z13       NOT USED               │
└───────────────────────┴─────────────────────────────────┘

PS/2 CONNECTORS

Keyboard, mouse, and auxiliary device connectors

PIN ASSIGNMENTS:

  1.  Data                           6   5
  2.  Reserved                     *  ┌─┐  *
  3.  Ground                      4   │ │   3
  4.  +5 Vdc                      *   └─┘   *
  5.  Clock                        2       1
  6.  Reserved                       *   *

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