2) Safety Precautions..................................................................................................................................1-2

3) Ground.....................................................................................................................................................1-3

4) Static Electricity Precautions..................................................................................................................1-3

2. Introduction and Specification

1) Introduction.............................................................................................................................................2-1

2) Specification...........................................................................................................................................2-2

3) Compare.................................................................................................................................................2-7

4) Option list...............................................................................................................................................2-8

5) System view...........................................................................................................................................2-11

6) New fuction...........................................................................................................................................2-15

7) Software list...........................................................................................................................................2-19

8) BIOS Setup............................................................................................................................................2-21

7) Description of Main board.....................................................................................................................2-27

3. Disassembly and Reassembly

1) Disassembly and Reassembly of R25.................................................................................................3-1

4. Troubleshooting

1) General..................................................................................................................................................4-1

2) Debugging Flow Chart..........................................................................................................................4-2

3) System Diagnosis..................................................................................................................................4-4

4) Use of Diagnostic program...................................................................................................................4-8

5) Hardware Troubleshooting....................................................................................................................4-13

6) Device Settings Related Software Diagnosis......................................................................................4-23

7) drivers and application software list....................................................................................................4-26

8) Battery Use Time..................................................................................................................................4-28

7) Others....................................................................................................................................................4-33

5. Exploded view

1) Exploded view of R25...........................................................................................................................5-1

2) ODD........................................................................................................................................................5-11

6. Part list of R25.................................................................................................................

7. System Wire Diagram......................................................................................................

8. Schematic.........................................................................................................................

6-1

7-1

8-2