Disassembly and Unit Replacement
4-17
4.6.6 Removing the Mainboard
Follow these steps to remove the mainboard:
1.
Remove the screws found on the lower case (ten total screws, two screws shorter than the rest
found on the front corners of the computer).
Figure 4-20
Removing the Bottom Screws
2.
Remove the keyboard/touchpad board (CN18). Remove two screws and remove the plate
that covers the DC-DC converter board.
Figure 4-21
Removing the Keyboard/Touchpad Board and DC-DC Converter Board Cover
Summary of Contents for 390 Series
Page 15: ...System Introduction 1 3 Figure 1 2 PCB No 96183 1A Mainboard Layout Bottom ...
Page 96: ...2 50 Service Guide 2 3 3 Pin Configuration Figure 2 4 FDC37C67 TQFP Pin Diagram ...
Page 97: ...Major Chips Description 2 51 Figure 2 5 FDC37C67 QFP Pin Diagram ...
Page 102: ...2 56 Service Guide 2 3 6 Block Diagram Figure 2 6 FDC37C67 Block Diagram ...
Page 126: ...2 80 Service Guide 2 5 4 1 Functional Block Diagram Figure 2 10 M38813 Block Diagram ...
Page 128: ...2 82 Service Guide 2 6 2 Pin Diagram Figure 2 11 YMF715 Block Diagram ...
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