Safety Instruction - Daewoo DTM-29U7Z SERIES Service Manual

SAFETY INSTRUCTION

WARNING : Only competent service personnel may carry out work involving the testing or repair of this equipment
X-RAY RADIATION PRECAUTION
1. Excessive high voltage can prodece potentially haz-
ardous 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
29-31kv at max beam current. The high voltage must
not, under any circumstances, exceed 35kv. (33kv :
SAMSUNG CRT)
Each time a receiver require servicing, the high volt-
age should be checked. It is imprortant to use an accu-
rate and reliable high voltage meter.
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 board removed involves a
shock hazard from the receiver.
1) Servicing should not be attempted by anyone who is
not thoroughly familiar with the precautions neces-
sary when working on high-voltage equipment.
2) Dischange 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.
PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in this have
special safety-related characteristics. These charac-
teristics 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 volt-
age, wattage, etc. Replacement parts which have
these special safety characteristics are identified in
this manual and its supplements, electrical compo-
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.
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 ( oxide metal
film resistor ) in circuit board, keep the resistor 10mm
away from circuit board.
4. Keep wires away from high voltage or high tempera-
ture components.
5. This receiver must operate under AC230 volts, 50Hz.
NEVER connect to DC supply or any other power or
frequency.
nents having such features are identified 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
characterisitics as specifide in the parts list may create
X-RAY Radiation.
2