4033 LX  (250-5130)           Math Coprocessor          Faxback Doc. # 1649

The math coprocessor socket is located on the CPU board, as illustrated
in the following diagram.

┌──────────────────────────────────────────────────────────────┐
│    ┌──────┐ ┌──────┐ ┌────\                                  ├┬──
│    │      │ │      │ │     │°«---Pin Socket 1                ││
│    │      │ │      │ │     │                                 ││
│    └──────┘ └──────┘ └─────┘«---Math Coprocessor Socket      ││
│                                                              ││
│                                        ▓▓▓▓▓▓▓  ▓▓▓▓▓▓       ││
│                                                              ││
│                                        ▓▓▓▓▓▓▓  ▓▓▓▓▓▓       ││
│                                                              ││
│                                        ▓▓▓▓▓▓▓  ▓▓▓▓▓▓       ││
│                                                              ││
└──────┐        ┌┐             ┌───────────────────────────────┘│
       │░░░░░░░░││░░░░░░░░░░░░░│                                │
       └────────┘└─────────────┘                                │

Carefully read the instruction in this section before installing the
coprocessor.  Incorrect  orientation or installation of the coprocessor
can damage the coprocessor or the socket, and removal of the coprocessor
requires a special extraction tool.

Additional instructions might be included with the coprocessor.  If you
choose not to install the coprocessor yourself, a trained technician at
a Radio Shack Service Center can install it for you.

CAUTION:  Before handling electrical components touch a grounded metal
object to release any static electrical charge from your body.

To install a coprocessor:

1.  Orient a coprocessor so that the dot on the notched corner aligns with
    Pin Socket 1.  The following diagrams identify Pin Socket 1 for both
    the Intel and the Weitek coprocessors.

    Correct orientation of the Intel 80387 coprocessor will leave an empty
    row of socket holes around the coprocessor.  Correct installation of
    wither coprocessor will leave a gap between the coprocessor and the
    socket.

2.  When you are certain the coprocessor is correctly oriented, press the
    coprocessor into the socket.  Do not attempt to close the gap between
    the coprocessor and the socket.  Pressing the coprocessor too far into
    the socket can damage the coprocessor or the socket.

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