Daewoo DTJ - 28A6F Service Manual download pdf (Page 3)

1. Safety Instruction

WARNING

: Only competent service personnel may carry out work involving the testing or repair of this equipment

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

23-24kv at max beam current. The high voltage must

not, under any circumstances, exceed 30kv.

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.

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.

X-RAY RADIATION 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.

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.

SAFETY PRECAUTION

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-

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.

PRODUCT SAFETY NOTICE

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Daewoo DTJ - 28A6F Service Manual Page 3

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