Safety Instruction
NOTE
BEFORE SERVICING THIS CHASSIS READ THE ?X-RAY RADIATION PRECAUTIONS?,
?SAFETY PRECAUTIONS? AND ?PRODUCT SAFETY NOTICE? BELOW.
X-RAY RADIATION PRECAUTIONS
1. Excessive high voltage can produce potentially hazard-of the high voltage recorded as a part of the service
ous X-RAY RADIATION. To avoid such hazards, the recorded as a part of the service records. It is important
high voltage must not exceed the specified limit. The to use an accurate and reliable high voltage meter.
nominal value of the high voltage of this receiver is 2. The only source of X-RAY RADIATION in this TV
29kV(29?) at max beam current. The high voltage must receiver is the picture tube. For continuous RADIATION
not, under any circumstances, exceed 30.5kV(29?). protection, the replacement tube must be exactly the
Each time a receiver requires servicing, the high volt-same type tube as specified in the ?PART LIST?.
age should be checked. It is recommended the reading
SAFETY PRECAUTIONS
1. Potentials of high voltage are present when this 2. If any FUSE in this TV receiver is blown, replace it will
receiver is operating. Operation of the receiver outside the FUSE specified in the ?PART LIST?.
the cabinet or with the back cover removed involves a 3. When replacing a high wattage resistor (oxide metal
shock hazard from the receiver.film resistor) in circuit board, keep the resistor 10mm
1) Servicing should not be attempted by anyone who is away from circuit board.
not thoroughly familiar with the precautions necessary 4. Keep wires away from high voltage or high temperature
when working on high voltage equipment.components.
2) Always discharge the picture tube to avoid the shock 5. This receiver must operate between AC100~240 volts,
harzard before removing the anode cap.50/60Hz. NEVER connect to DC supply or any other
3) Discharge the high potential of the picture tube before power or frequency.
handling the tube. The picture tube is highly evacuated
and if broken, glass fragments will be violently expelled.
PRODUCT SAFETY
Many electrical and mechanical parts in this chassis have ments, electrical components having such features are
special safety-related characteristics.identified by designated symbol on the ?PART LIST?.
These characteristics are often passed unnoticed by a Before replacing any of these components, read the ?PART
visual inspection and the X-RAY RADIATION protection LIST? in this manual carefully.
afforded by them cannot necessarily be obtained by using The use of substitute replacement part which do not have
replacement components rated for higher voltage, wattage, the same safety characteristics as specified in the ?PART
etc.LIST? may created X-RAY RADIATION.
Replacement parts which have these special safety char-
acteristics are identified in this manual and its supple- |
ACEC
