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Safety
SECTION 1
Service Precautions
Establish and Adhere to Preventive
CAUTION
Maintenance.
A composite program can be established
from recommended schedules in the
instruction literature.
Avoid leaving test equipment or hand
tools on machine. Severe electrical
or mechanical damage could occur to
equipment or machine.
Extreme caution should be used when
CAUTION
probing circuitry with an oscilloscope or
voltmeter.
Although many steps have been taken
to protect integrated circuits, they are
susceptible to overvoltage damage.
Test probes should be connected while
machine power is off to prevent accidental
shorting of components.
Be thorough when handling electronic
components. When finished servicing,
confirm that all circuit boards are securely
seated in sockets, all cables are properly
connected, all cabinets are closed and
locked, all guards and covers are replaced.
Never plug or unplug a printed
circuit board while machine power is
on. Instantaneous surges of voltage
and current can damage electronic
components.
Never trace wiring with buzzer or light.
Use an ohm meter or logic probe. When
tracing circuits make certain that tracing
currents do not damage solid-state
devices.
Safety Section
1
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