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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 …………………………………………………………………………………………………………..
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MiTac Secret
Confidential Document