Acer Aspire 4250, Service Manual, Page: 106 / 200

3-22 Machine Maintenance Procedures
IMPORTANT
:
+
Circuit boards >10 cm² have been highlighted with a yellow rectangle as
shown in
Figure 3-19 . Remove the Circuit board and follow local
regulations for disposal.
Mainboard Installation
0
1. Put mainboard onto Base Assembly. Refer to Figure 3-16
2. Install and secure two (2) screws (F) to mainboard. Refer to Figure 3-17 .
3.
Connect Powerboard cable (G) and Speaker cable (H) to mainboard. Refer to
Figure 3-18 .
4.
Connect LVDS cable (D) and DC-in cable (E) to mainboard connector ( Figure 3-17 ).
5.
Put WLAN antenna (B) into the cable guides on the thermal module ( Figure 3-17 ).
6. Connect WLAN antenna (B) to WLAN card ( Figure 3-17 ).
7. Install HDD Module.
8.
Install USB Module.
ID Size Quantity Screw Type
F M2.5*4.0 Ni 2