XOCECO LC30B1, Руководство по обслуживанию

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2.10.There are lots of connection wires between parts behind the LCD screen. When servicing or
moving the set please take care not to touch or scratch them. Once they are damaged the screen
would be unable to work and no way to get it repaired.
2.11. Special care must be taken in transporting or handling it. Exquisite shock
vibration may lead to breakage of screen glass or damage to driving circuit.
Therefore it must be packed in a strong case before the transportation or
handling.
2.12. For the storage make sure to put it in a place where the environment can be controlled so as to
prevent the temperature and humidity from exceeding the limits as specified in the manual. For
prolonged storage, it is necessary to house it in an anti-moisture bag and put them altogether in
one place. The ambient conditions are tabulated as follows:
Temperature
Scope for operation
0----+50 C
Scope for storage
-20----+60 C
humidity Scope for operation
20%---85%
Scope for storage
10%---90%
2.13. Display of a fixed picture for a long time may result in appearance of picture residue on the screen,
as commmonly called “ghost shadow”. The extent of the residual picture varies with the maker of
LCD screen. This phenonmenon doesn’t represent failure. This “ghost shadow” may remain in the
picture for a period of time (several minutes).But when operating it please avoid displaying still
picture in high brightness for a long time.
3. Points for attention during installation
3.1. The front panel of LCD screen is of glass. Wheng installing it please make sure to put it in place.
3.2. For service or instatallation it’s necessary to use specified screw lest it should damage the screen.
3.3. Be sure to take anti dust measures. Any foreign substance that happens to fall down between the
screen and the glass will affect the receiving and viewing effect
3.4. When dismantling or mounting the protective partition plate that is used for anti vibration and
insulation please take care to keep it in intactness so as to avoid hidden trouble.
3.5. Be sure to protect the cabinet from damage or scratch during service, dismantling or mounting.
Description of adjustment and calibration
2.1
Adjustment and calibration equipment
Multi-meter,5515 signal generator and oscilloscope
PC set (FLASH writing programs should be installed in place first.), K7253 (VGA and YprPb signal
generator) CA210 (LCD white balancer) and DVD broadcast player.
2.2 Flow of adjustment and calibration