Intermec PM4i, 1-971131-003 Installation Instructions Manual

Use these installation instructions to replace the power supply unit (PSU) on
the PM4i printer. The PSU kit ships with these items:

• Power supply unit (P/N 1-971131-003)

• This installation instruction sheet

To install the power supply unit, you need:

• T20 Torx screwdriver

To install the power supply unit
1 Turn off the printer power and remove the power cord.

2 Lay the printer on its left cover (the electronics and front cover).

PM

4i

This installation procedure must only be performed by an
authorized Intermec service technician. Intermec assumes no
responsibility for personal injury or damage to the
equipment if the installation is performed by an
unauthorized person.

The electrical components in the printer are susceptible to
damage from electrostatic discharge (ESD). You must
follow standard ESD guidelines to avoid damaging the
equipment you are servicing.

Power Supply Unit Installation Instructions

3 Remove the four T20 Torx screws from the bottom of the printer and then set

the printer back upright.

4 Open the media cover and remove the four T20 Torx screws that attach the

electronics and front cover to the printer.

Screw
(4 places)

Screw
(4 places)

5 Lift the electronics and front cover door away from the printer and carefully

disconnect the console cable from the CPU board.

6 Disconnect all of the cables from the CPU board.

7 Remove the four T20 Torx screws and the standoff that attach the CPU board to

the power supply unit and lift it away from the printer.

Screw
(4 places)

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© 2009 Intermec Technologies
Corporation. All rights reserved.

PM4i Power Supply Unit Installation Instructions

*931-067-001*

P/N 931-067-001

8 Remove the six T20 Torx screws that attach the power supply unit to the printer,

disconnect the cables from it, and lift it away from the printer.

9 To replace the power supply unit, reverse Steps 1 through 8. You need to reuse

the ground (GND) cable (P/N 236-068-003) and the cooling plate
(P/N 1-206170-00).

Note: When you remove the screws that attach the power supply unit to
the printer, the rear panel of the printer will detach.

Note: Make sure that you attach the GND cable through the lower left
screw when you replace the power supply unit.

Screw
(6 places)

Ground
cable