Safety Instruction - Daewoo DTU-29M5ME Service Manual

2 SAFETY INSTRUCTION

2 SAFETY INSTRUCTION
NOTE : BEFORE SERVICING THIS CHASSIS READ THE "X-RAY RADIATION PRECAUTIONS",
"SAFETY PRECAUTIONS" AND "PRODUCT SAFETY NOTICE" BELOW.
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 25.6KV [Normal Type](27.9KV [Flat Type]) at max beam
current. The high voltage must not, under any circumstances, exceed 28.6KV [Normal Type]
(30.9KV [Flat Type]). Each time a receiver requires servicing, the high voltage should be
checked. 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 continued X-
RAY RADIATION protection, the replacement tube must be exactly the same type tube as
specified in the parts list.
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 attempted by anyone who is not thoroughly familiar with the
precautions necessary when working on high voltage equipment.
2) Always discharge the picture tube to avoid the shock harzard 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 fragments will be violently expelled.
2. If any Fuse in this TV receiver is blown, replace it with the FUSE specified in the
Replacement Parts List.
3. When replacing a high wattage resistor (metal oxide film resistor) in the circuit board, keep
the resistor 10 mm away from circuit board.
4. Keep wires away from high voltage or high temperature components.
5. This receiver must operate between AC 110-250 volts, 50/60Hz. NEVER connect to DC
supply or any other power or frequency.
PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in this equipment 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 components rated for higher voltage, wattage, etc. Replacement parts which have
these special safety characteristics are identified in this manual and its supplements, electrical
components having such features are identified by designated symbol '
Before replacing any of these components, read the parts list in this manual carefully. The use
of substitutes replacement parts which do not have the same safety characteristics as specified
in the parts list may create X-RAY Radiation.
-3-
' on the parts list.
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