Basic Maintenance; General Maintenance - Motorola APX 5000 Service Manual

Chapter 2 Basic Maintenance
This chapter describes preventive maintenance and handling precautions. Each of these topics
provides information vital to the successful operation and maintenance of your radio.
2.1

General Maintenance

In order to avoid operating outside the limits set by the FCC, we recommend that you align the
ASTRO APX 5000/ APX 6000/ APX 6000Li radio's reference oscillator every time the radio is taken
apart, or once per year, whichever comes first. Checking this parameter when the product is placed
in service is especially important if the product has been in storage for a significant period of time (6
months or more) between being shipped from the factory and commissioned for service. (See
Section "6.5.1 Reference Oscillator Alignment" on page
cleaning is also recommended.
For APX 5000 R/ APX 6000 R (Ruggedized) Radios – Radio submergibility should be checked
annually by qualified service technicians.
2.1.1 Inspection
Check that the external surfaces of the radio are clean and that all external controls and switches are
functional. A detailed inspection of the interior electronic circuitry is not needed.
2.1.2 Cleaning
The following procedures describe the recommended cleaning agents and the methods to be used
when cleaning the external surfaces of the radio. External surfaces include the housing assembly
and battery case. These surfaces should be cleaned whenever a periodic visual inspection reveals
the presence of smudges, grease, and/or grime.
The only recommended agent for cleaning the external radio surfaces is a 0.5% solution of a mild
dishwashing detergent in water.
The detergent-water solution should be applied sparingly with a stiff, non-metallic, short-bristled
brush to work all loose dirt away from the radio. A soft, absorbent, lintless cloth or tissue should be
used to remove the solution and dry the radio. Make sure that no water remains entrapped near the
connectors, cracks, or crevices.
The effects of certain chemicals and their vapors can have harmful results
on certain plastics. Aerosol sprays, tuner cleaners, and other chemicals
should be avoided.
1:6-4). Periodic visual inspection and