Toshiba Satellite L300 L305 Maintenance Manual

Apx. A Handling the LCD Module Appendices 
Appendix A    
Appendix A  Handling the LCD Module 
Precautions for handling the LCD module 
The LCD module can be easily damaged during assembly or disassembly. Observe the 
following precautions when handling the LCD module: 
 
1. When installing the LCD module in the LCD c over, be sure to seat it so that it is 
properly aligned and maximum visibility of the display is maintained. 
 
 
2.  Be careful to align the four holes at the  right side and left side...

Appendices Apx. A Handling the LCD Module 
3. If the panel’s surface gets dirty, wipe it with  cotton or a soft cloth. If it is still dirty, 
try breathing on the surface to create a light condensate and wipe it ag\
ain. 
  If the surface is very dirty, we recommend  a CRT cleaning agent. Apply the agent to 
a cloth and then wipe the panel’s surface. Do  not apply cleanser directly to the panel. 
Also, never scratch the surface. 
 
4.  If water or other liquid is left on the pa nel’s surface for a long...

Apx. A Handling the LCD Module Appendices 
5. Glass is used in the panel, so be careful not to drop it or let it strik\
e a hard object, 
which could cause breakage or cracks. 
 
6.  CMOS-LSI circuits are used in the module, so guard against damage from 
electrostatic discharge. Be sure to wear  a wrist or ankle ground when handling the 
module. 
 
Satellite L300/L305/Satellite Pro L300/EQUIUM  L300/SATEGO L300     Maintenance Manual A-3  

Appendices Apx. A Handling the LCD Module 
7. Do not expose the module to direct sunlight  or strong ultraviolet rays for long periods. 
 
8. Do not store the module at temperatures  below specifications. Cold can cause the 
liquid crystals to freeze, lose their elasticity or otherwise suffer dam\
age. 
 
A-4   Satellite L300/L305/Satellite Pro L300/EQUIUM  L300/SATEGO L300     Maintenance Manual  

Apx. A Handling the LCD Module Appendices 
9. Do not disassemble the LCD module. Disassembly can cause malfunctions. 
 
 
10. If you transport the module, do not use pack ing material that contains epoxy resin 
(amine) or silicon glue (alcohol or oxide).  These materials can release gas that can 
damage the panel’s polarization. 
 
 
 
Satellite L300/L305/Satellite Pro L300/EQUIUM  L300/SATEGO L300     Maintenance Manual A-5  

Apx. B Board Layout Appendices 
Appendix B  
Appendix B  Board Layout 
B.1  System Board Front View 
 
Figure B-1  Board Layout (Front) 
Satellite L300/L305/Satellite Pro L300/EQUIUM L 300/SATEGO L300     Maintenance Manual  B-1  

Appendices  Apx. B Board Layout 
 
 
 
 
Figure B-2  Board Layout (Back) 
B-2  Satellite L300/L305/Satellite Pro L300/EQUIUM L300/SATEGO L300     Maintenance Manual  

Appendices  Apx. C Pin Assignments 
Satellite L300/L305/Satellite Pro L300/EQUIUM L300/SATEGO L300     Maintenance Manual C-1 
Appendix C   
C.1         CN1             Power Board Connector (4-Pin) ........................................................C-2 
C.2         CN2             Switch Board Connector (12-Pin) .....................................................C-2 
C.3         CN3             AC-In Cable Connector (4-Pin) .........................................................C-2 
C.4...

Appendices   Apx. C  Pin Assignments 
C-2  Satellite L300/L305/Satellite Pro L300/EQUIUM L300/SATEGO L300     Maintenance Manual 
Appendix C    
Appendix C      Pin Assignments 
System Board 
C.1         CN1             Power Board Connector (4-Pin) 
Table C-1    Power Board Connector Pin Assignments (4-Pin) 
Pin No.  Signal Name  I/O  Pin No. Signal Name  I/O 
1 PWR_SWIN#_3  I 2 DGND 
- 
3 DGND - 4 DGND 
- 
 
C.2         CN2             Switch Board Connector (12-Pin) 
Table C-2    Switch Board...

Appendices  Apx. C Pin Assignments 
Satellite L300/L305/Satellite Pro L300/EQUIUM L300/SATEGO L300     Maintenance Manual C-3 
3 DGND 
- 4 N$1054331 
- 
5 DGND  - 6 N$1217468 
- 
7 DGND  - 8 VSYNC 
O 
9 DGND  - 10 HSYNC 
O 
11 -  - 12 N$1158229 
- 
13 N$1158230  - 14 - 
- 
 
C.5         CN5             LCD/FL Inverter Cable Connector (40-Pin) 
Table C-5    LCD/FL Inverter Cable Connector Pin Assignments (40-Pin) \
Pin No.  Signal Name  I/O  Pin No.  Signal Name  I/O 
1 DGND 
- 2 N$811968 
- 
3 DGND  -...