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1: An isolation transformer should be connected in the
power line between the receiver and the AC line when
a service is performed on the primary of the converter
transformer of the set.
2: Comply with all caution and safety-related notes pro-
vided on the cabinet back, inside the cabinet, on the
chassis or the picture tube.
The primary source of X-RADIATION in the television receiver is the picture tube. The picture tube is specially con-
structed to limit X-RADIATION emissions. For continued X-RADIATION protection, the replacement tube must be
the same type as the original including suffix letter. Excessive high voltage may produce potentially hazardous X-
RADIATION. To avoid such hazards, the high voltage must be maintained within specified limit. Refer to this ser-
vice manual, high voltage adjustment for specific high voltage limit. If high voltage exceeds specified limits, take
necessary corrective action. Carefully follow the instructions for +B1 volt power supply adjustment, and high volt-
age adjustment to maintain the high voltage within the specified limits.
Product safety should be considered when a component replacement is made in any area of a receiver.
Components indicated by mark / / !\ in the parts list and the schematic diagram designate components in which safe-
ty can be of special significance. It is particularly recommended that only parts designated on the parts list in this
manual be used for component replacement designated by mark /!\ . No deviations from resistance wattage or
voltage ratings may be made for replacement items designated by mark /!\ .
SAFETY PRECAUTION
3: When replacing a chassis in the cabinet, always be cer-
X-RADIATION PRECAUTION
PRODUCT SAFETY NOTICE
-2-
tain that all the protective devices are installed proper-
ly, such as, control knobs, adjustment covers or
shields, barriers, isolation resistor-capacitor networks
etc.Before returning any television to the customer, the
service technician must be sure that it is completely
safe to operate without danger of electrical shock.
Service manual-EC5 chassis
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