Partner PT-5900, Руководство по обслуживанию

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CHAPTER 5
REPLACING FIELD REPLACEABLE UNITS (FRUs)
This chapter provides instructions for replacing FRUs. The following topics are described.
• Safety and precautions on the page 55
• Before you begin on the page 56
• Replacing parts on the page 56
• MSR on the page 57
• Customer Display on the page 57
• HDD on the page 58
• Front Cover on the page 60
• Heat Sink (optional) on the page 62
• Speaker Bracket on the page 63
• Speaker on the page 63
• Power Button on the page 63
• Memory on the page 64
• Battery on the page 64
• COM Port on the page 64
• Mainboard Board on the page 65
• Power Board on the page 66
• I/O Shield on the page 66
• Inverter on the page 67
• Panel Bracket on the page 68
• Waterproof Seal, Touch Panel, Touch Cover, LCD Panel on the page 68
Only qualified personnel should perform repairs on the PT-5900. Damage
due to unauthorized servicing is not covered by the warranty.
Safety and precautions
Computer components and electronic circuit boards can be damaged by discharges of static electricity.
Working on computers that are still connected to a power supply can be extremely dangerous. Follow these
guidelines to avoid damage to the computer or injury to yourself.
• Always disconnect the unit from the power outlet.
• Leave all components inside the static-proof packaging that they ship with until they are ready for
installation.
• After replacing optional devices, make sure all screws, springs, or other small parts are in place and
are not left loose inside the case. Metallic parts or metal flakes can cause electrical shorts.
If the LCD breaks and fluid gets onto your hands or into your eyes,
immediately wash with water and seek medical attention.
CAUTION
CAUTION