Chapter 4. Locations
Attention: The electronic parts of this printer can be damaged by electrostatic discharge (ESD). Ensure that ESD
protection devices and procedures, including a static discharge wrist strap are used while working on this printer.
Use microcode module extractor (PN 73G5523) to remove modules U1, U2, U54, and S1.
Attention: When using module extractor PN 73G5523, follow these steps to avoid cracking or damaging the
plastic sockets.
1. Insert the C-shaped end of the tool into one of the module socket extraction slots.
2. Hold the tool perpendicular to the module and pull upward to loosen it from the socket.
3. Repeat the previous two steps, using the extraction slot in the opposite corner until the module lifts out of the
socket.
Attention: When removing module U57, do not use PN 73G5523; instead, follow these steps:
1. Insert a small, flat-bladed screwdriver under the module.
2. Pry up under the module to free the module from the socket.
© Copyright IBM Corp. 1995, 2001 265
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