2. SAFETY INSTRUCTION
BEFORE SERVICING THIS CHASSIS, READ THE ?X-RAY RADIATION PRECAUTION?,
WARNING
?SAFETY PRECAUTION? AND ?PRODUCT SAFETY NOTICE? BELOW.
2-1. X-RAY RADIATION PRECAUTION
1. Excessive high voltage can produce potentially hazardous X-RAY RADIATION.To avoid such hazards,
the high voltage must not exceed the specified limit. The nominal value of the high voltage of this receiver is
22-23kv(14?), 25-26kv(20?, 21?) at max beam current.
The high voltage must not, under any circumstances, exceed 27.5kv (14", 20?), 29.0kv(21?).
Each tim e a receiver requires servicing, the high voltage should be checked. It is recomm ended the
reading of the high voltage recorded as a part of the service records. it is important to use an accurate
and reliable high voltage meter.
2. The only source of X-RAY Radiation in this TV receiver is the picture tube. For continuous RADIATION
protection, the replacem ent tube m ust be exactly the same type tube as specified in the parts list.
2-2. SAFETY PRECAUTION
1. Potentials of high voltage are present when this receiver is operating. Operation of the receiver outside
the cabinet or with the back cover removed involves a shock hazard from the receiver.
1) Servicing should not be attem pted by anyone who is not thoroughly familiar with the precautions
necessary when working on highvoltage equipment.
2) Always discharge the picture tube to avoid the shock hazard before removing the anode cap.
3) Discharge the high potential of the picture tube before handling the tube. The picture tube is highly
evacuated and if broken, glass fragm ents will be violently expelled.
2. If any Fuse in this TV receiver is blown, replace it with the FUSE specified in the Replacem ent Parts List.
3. W hen replacing a high wattage resistor(oxide metal film resistor) in circuit board, keep the resistor 10mm
away from circuit board.
4. Keep wires away from high voltage or high temperature components.
5. This receiver m ust operate under AC260 volts, 50Hz/60Hz.
(AC 100~250 volts, 50/60Hz)NEVER connect to DC supply or any other power or frequency.
2-3. PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in this chassis have special safety-related characteristics.
These characteristics are often passed unnoticed by a visual inspection and the X-RAY RADIATION protection
afforded by them cannot necessarily be obtained by using replacement com ponents rated for higher voltage,
wattage, etc. Replacement parts which have these special safety characteristics are identified in this manual
and its supplem ents, electrical com ponents having such features are identified by designated symbol on the
parts list. Before replacing any of these components, read the parts list in this manual carefully.
The use of substitute replacement parts which do not have the same safety characteristics as specified in the
parts list may created X-RAY Radiation.
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ACEC
DAEWOO
