Quasar SR5133B Service Manual page 6

Service Notes (Continued)
IMPORTANT: To protect against possible damage to
the solid state devices due to arcing or static discharge,
make certain that all ground wires and CRT DAG wire
are securely connected.
CAUTION: The power supply circuit is above earth
ground and the chassis cannot be polarized. Use an
isolation transformer when servicing the PTV to avoid
damage to the test equipment or to the chassis.
Connect the test equipment to the proper ground (( )
or ( )) when servicing, or incorrect voltages will
be measured.
WARNING: This PTV has been designed to meet or
exceed applicable safety and X-ray radiation protection
as specified by government agencies and independent
testing laboratories.
To maintain original product safety design standards
relative to X-ray radiation and shock and fire hazard,
parts indicated with the symbol on the schematic
must be replaced with identical parts. Order parts from
the manufacturer's parts center using the parts
numbers listed in this service manual, or provide the
chassis number and the part reference number.
For optimum performance and readability, all other
parts should be replaced with components of
identical specification.
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Service Manual