Motorola GP1280 Series Basisservicehandleiding - Pagina 15

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Motorola GP1280 Series Basisservicehandleiding
1.0

Introduction

This chapter provides details about the following:
Preventive maintenance (inspection and cleaning)
Safe handling of CMOS and LDMOS devices
Disassembly and reassembly of the radio
Repair procedures and techniques
Installation of Option Boards
2.0

Preventive Maintenance

The radios do not require a scheduled preventive maintenance program; however, periodic visual
inspection and cleaning is recommended.
2.1

Inspection

Check that the external surfaces of the radio are clean, and that all external controls and switches
are functional. It is not recommended to inspect the interior electronic circuitry.
2.2

Cleaning Procedures

The following procedures describe the recommended cleaning agents and the methods to be used
when cleaning the external and internal surfaces of the radio. External surfaces include the front
cover, housing assembly and battery case. These surfaces should be cleaned whenever a periodic
visual inspection reveals the presence of smudges, grease, and/or grime.
NOTE
Internal surfaces should be cleaned only when the radio is disassembled for service
or repair.
The only recommended agent for cleaning the external radio surfaces is a 0.5% solution of a mild
dishwashing detergent in water. The only factory recommended liquid for cleaning the printed circuit
boards and their components is isopropyl alcohol (70% by volume).
!
CAUTION: The effects of certain chemicals and their vapors can have harmful results on certain
plastics. Avoid using aerosol sprays, tuner cleaners, and other chemicals.
Cleaning External Plastic Surfaces
Apply the 0.5% detergent-water solution sparingly with a stiff, non-metallic, short-bristled brush to
work all loose dirt away from the radio. Use a soft, absorbent, lintless cloth or tissue to remove the
solution and dry the radio. Make sure that no water remains entrapped near the connectors, cracks,
or crevices.
Chapter 3
MAINTENANCE