Daewoo DWP-28W2ZZF Service Manual download pdf (Page 10)

Service manual WP-795

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2 - 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 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 26 KV at max beam current. The high voltage must not, under any circumstances, exceed

30KV. 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 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 necessary when working on high voltage equipment.

2) 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 (oxide metal film resistor) in 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 under AC 230 volts, 5O Hz. 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 on the parts list. 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.

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Daewoo DWP-28W2ZZF Service Manual Page 10