Lenovo ThinkPad i Series 1300 ThinkPad 130, 1200, 1300 - Hardware Maintenance - Page 31

FRU replacement notices This section contains notices for removal and replacement. Read this section carefully before replacing any FRU. LCD replacement notice The TFT LCD for the computer contains many thin-film transistors (TFTs). A small number of missing, discolored, or lighted dots (on all the time) is characteristic of TFT LCD technology, but excessive pixel problems can cause viewing concerns. The LCD should be replaced if the number of missing, discolored, or lighted dots in any background is: v SVGA : 5 or more bright dots, 5 or more dark dots, or a total of 9 or more bright and dark dots. v XGA : 8 or more bright dots, 8 or more dark dots, or a total of 9 or more bright and dark dots. Screw notices This computer uses special nylon-coated screws with the following characteristics: v They maintain tight connections. v They do not easily come loose, even with shock or vibration. v They need additional force to tighten. v They should be used only once. Do the following when you service this machine: v Keep the screw kit (P/N 08K6560) in your tool bag. v Always use new screws if you are instructed. v Use a torque screwdriver if you have one. Loose screws can cause a reliability problem. The IBM ThinkPad computer addresses this problem with nylon-coated screws. Tighten screws as follows: v Plastic to plastic ThinkPad i Series 1200/1300 21