MiTAC 8050QMA User Manual
2
80
80
50QMA
50QMA
N/B Maintenance
N/B Maintenance
Contents
5. Pin Description of Major Component …….……………………………………………………………….
5.1 Intel 915PM North Bridge ……………………………………………………………………………………………….
5.2 Intel ICH6-M South Bridge ………………………………………………………………………………………………
6. System Block Diagram ………………………………………………………………………………………
7. Maintenance Diagnostics ……………………………………………………………………………………
7.1 Introduction ………………………………………………………………………………………………………………..
7.2 Maintenance Diagnostics…………………………………………………………………………………………………..
7.3 Error Codes ………………………………………………………………………………………………………………..
8. Trouble Shooting …………………………………………………………………………………………….
8.1 No Power ……………………………………………………………………………………………………………………
8.2 No Display ………………………………………………………………………………………………………………….
8.3 VGA Controller Failure LCD No Display ………………………………………………………………………………..
8.4 External Monitor No Display ……………………………………………………………………………………………..
8.5 Memory Test Error ………………………………………………………………………………………………………..
8.6 Keyboard (K/B) Touch-Pad (T/P) Test Error ……………………………………………………………………………
8.7 Hard Drive Test Error ……………………………………………………………………………………………………
8.8 CD-ROM Drive Test Error ………………………………………………………………………………………………
8.9 USB Port Test Error ……………………………………………………………………………………………………….
8.10 Audio Failure ……………………………………………………………………………………………………………..
8.11 LAN Test Error …………………………………………………………………………………………………………..
103
115
121
127
117
119
98
105
112
123
125
129
78
88
132
99
101
99
100
78
MiTac Secret
Confidential Document