42.11 Special care must be taken in transporting or handling it. Exquisite shock vibration may lead tobreakage of screen glass or damage to driving circuit. Therefore it must be packed in a strong casebefore 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 toprevent the temperature and humidity from exceeding the limits as specified in the manual. Forprolonged storage, it is necessary to house it in an anti-moisture bag and put them altogether in oneplace. The ambient conditions are tabulated as follows:Temperature Scope for operation 0 ~ + 35 oCScope for storage -20 ~ + 60 oCHumidity Scope for operation 20% ~ 80 %Scope for storage 10% ~ 90%2.13 Display of a fixed picture for a long time may result in appearance of picture residue on thescreen, as commonly called “ghost shadow”. The extent of the residual picture varies with the makerof LED screen. This phenomenon doesn’t represent failure. This “ghost shadow” may remainin the picture for a period of time (several minutes). But when operating it please avoid displaying stillpicture in high brightness for a long time.3. Points for attention during installation3.1 The front panel of LED screen is of glass. When installing it please make sure to put it in place.3.2 For service or installation 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 thescreen and the glass will affect the receiving and viewing effect3.4 When dismantling or mounting the protective partition plate that is used for anti vibration andinsulation 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.