User's Manual

5-1
5
MAINTENANCE
5.1
GENERAL
This section contains information and procedures to aid in restoring the equipment to its
proper operating condition after it has been determined that a problem exists.
The following warnings and cautions apply while operating, performance testing, trouble-
shooting, or repairing the MDR-8000 series radios.
Short circuits in low-voltage, low-impedance dc circuits can cause
severe arcing that may result in burns or eye injury. Remove rings,
watches, and other metal jewelry while working with primary cir-
cuits. Exercise caution to avoid shorting power input terminals.
XMTR and RCVR crystals are soldered and tuned in an oscillator
assembly board at the factory. Crystals are not replaceable compo-
nents.
Units with the electrostatic-sensitive (ESS) symbol contain ESS
devices. Store these units in an antistatic container when not in use,
and anyone handling a unit should observe antistatic precautions.
Refer to the Special Precautions pages in the front of the instruction
book for detailed handling information.
DANGER
Possibility of
Injury
to Personnel
CAUTION
Possibility of
Service
Interruption
CAUTION
Possibility of
Service
Interruption