01629.pdf

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4025 LX
(250-5125)
Math Copressor
Faxback Doc. # 1629
The math coprocessor socket is located on the CPU board, as illustrated
in the following diagram.
┌──────────────────────────────────────────────────────────────┐
│
┌──────┐ ┌──────┐ ┌────\
├┬──
│
│
│ │
│ │
│°«---Pin
Socket 1
││
│
│
│ │
│ │
│
││
│
└──────┘ └──────┘ └─────┘«---Math
Coprocessor Socket
││
│
││
│
▓▓▓▓▓▓▓ ▓▓▓▓▓▓
││
│
││
│
▓▓▓▓▓▓▓ ▓▓▓▓▓▓
││
│
││
│
▓▓▓▓▓▓▓ ▓▓▓▓▓▓
││
│
││
└──────┐
┌┐
┌───────────────────────────────┘│
│░░░░░░░░││░░░░░░░░░░░░░│
│
└────────┘└─────────────┘
│
WARNING: Incorrect installation of a math coprocessor can damage the
coprocessor, the CPU board, and/or the main logic board.
Carefully read the instruction in this section before installing the
coprocessor. 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.
Correct orientation of the Intel 80387 coprocessor will leave an
empty row of socket holes around the coprocessor.
2.
Take care not to bend or touch the metal pins. 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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