User Manual

MCA9129-90MCA9129-90-A Installation & Service Manual

044-05060 Rev. C 5-1 July 2001November 2002

Section 5 Maintenance

5-1 Introduction

This section contains periodic maintenance and performance test procedures for the Multicarrier

Cellular Amplifier. It also contains a list of test equipment required to perform the identified tasks.

NOTE

Check your sales order and equipment warranty before attempting to service or repair

the unit. Do not break the seals on equipment under warranty or the warranty will be

null and void. Do not return equipment for warranty or repair service until proper

shipping instructions are received from the factory.

5-2 Periodic Maintenance

Periodic maintenance requirements are listed in table 5-1. Table 5-1 also lists the intervals at

which the tasks should be performed.

WARNING

Wear proper eye protection to avoid eye injury when using compressed air.

Table 5-1 Periodic Maintenance

Task Interval Action

Cleaning

Air Vents 30 Days Inspect and clean per paragraph 5-4

Inspection

Cables and

Connectors

Months

Inspect signal and power cables for frayed insulation. Check

RF connectors to be sure that they are tight.

Performance Tests 12

Months

Perform annual tests in accordance with individual manuals

for amplifiers.

5-3 Test Equipment Required For Test

Test equipment required to test the amplifier system is listed in Table 5-2. Equivalent test equip-

ment may be substituted for any item, keeping in mind that a thermistor type power meter is re-

quired.

NOTE

All RF test equipment must be calibrated to 0.05 dB resolution. Any deviation from

the nominal attenuation must be accounted for and factored into all output readings.