Toshiba 1NA, Hardware Service Manual

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Chapter 5. Removing and replacing FRUs
This section provides instructions on how to remove and replace the field
replacement units (FRU) for the SureMark 4610 Models 1NR, 1NA, and 1ND. See
Appendix A, “Parts listing,” on page 71 for a description of the FRU catalog and a
list of the FRU part numbers.
Notes:
1. Before you perform any removal and replacement procedures, see “Handling
static-sensitive devices.”
2. Locate the machine serial number. See “Printer information label” on page 26.
3. Switch OFF the power to the SureMark 4610. Unplug the power cord from the
external power source.
Handling static-sensitive devices
Attention: Static electricity can damage electronic devices and your system. To
avoid damage, keep static-sensitive devices in their static protective bags until you
are ready to install them.
To reduce the possibility of electrostatic discharge, observe the following
precautions:
v Limit your movement. Movement can cause static electricity to build up around
you.
v
Handle the device carefully, holding it by its edges or its frame.
v
Do not touch solder joints, pins, or exposed printed circuitry.
v Do not leave the device where others can handle and possibly damage the
device.
v
While the device is contained in its anti-static bag, touch it and your finger to an
unpainted metal part of the system unit for at least 2 seconds. (This action
removes static electricity from the package and from your body.)
v Remove the device from its package and install it directly into your system,
without putting it down. If it is necessary to put the device down, place it onto its
static-protective bag. (If your device is an adapter, place it component side up.)
Do not place the device onto the cover of the system or onto a metal table.
v
Take additional care when handling devices during cold weather because heating
reduces indoor humidity and increases static electricity.
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