| 8170 N/B MAINTENANCE  |    | 
CONTENTS  |    | 
| 6. System Block Diagram ------------------------------------------------------------------------------------------------- | 136  | 
| 7. Maintenance Diagnostic ------------------------------------------------------------------------------------------------ | 137  | 
7.1  | Introduction--------------------------------------------------------------------------------------------------------------------------------  | 137  | 
7.2  | Error Codes--------------------------------------------------------------------------------------------------------------------------------  | 138  | 
7.3  | Debug Card--------------------------------------------------------------------------------------------------------------------------------  | 140  | 
| 8. Trouble Shooting -------------------------------------------------------------------------------------------------------- | 142  | 
8.1  | No Power------------------------------------------------------------------------------------------------------------------------------------  | 143  | 
8.2  | Battery Can not Be Charged-----------------------------------------------------------------------------------------------------------  | 148  | 
8.3  | No Display----------------------------------------------------------------------------------------------------------------------------------  | 151  | 
8.4  | VGA Controller Failure LCD No Display-------------------------------------------------------------------------------------------  | 153  | 
8.5  | VGA Controller Failure External Monitor No Display---------------------------------------------------------------------------  | 155  | 
8.6  | Memory Test Error-----------------------------------------------------------------------------------------------------------------------  | 157  | 
8.7  | Keyboard(K/B) and Touch Pad(T/B) Test Error-----------------------------------------------------------------------------------  | 159  | 
8.8  | Hard Drive Test Error-------------------------------------------------------------------------------------------------------------------  | 161  | 
8.9  | CD-ROM Drive Test Error-------------------------------------------------------------------------------------------------------------  | 163  | 
8.10  | USB Port Test Error--------------------------------------------------------------------------------------------------------------------  | 165  | 
8.11  | PIO Port Test Error---------------------------------------------------------------------------------------------------------------------  | 167  | 
8.12  | PC-Card Failure-------------------------------------------------------------------------------------------------------------------------  | 169  | 
8.13  | IEEE1394 Failure-----------------------------------------------------------------------------------------------------------------------  | 171  | 
8.14  | Audio Failure----------------------------------------------------------------------------------------------------------------------------  | 173  | 
8.15  | LAN Test Failure------------------------------------------------------------------------------------------------------------------------  | 176  | 
| 9. Spare Parts List ---------------------------------------------------------------------------------------------------------- | 178  |