7-26 Replacing Fan Assembly – ND70948 Assembly Removal and Replacement, MS203xC
7-80 PN: 10580-00307 Rev. D MS20xxC MM
8. Gently pry the fan cable from Mother Board connector J1002. Refer to item 2 in Figure 7-44.
9. Use a Phillips-head screwdriver to remove the 2 mounting screws that hold the Fan Assembly in place,
and then remove the Fan Assembly.
Installing the Fan Assembly:
10. Install the replacement Fan Assembly and tighten the 2 mounting screws.
Torque these screws to 4.0 lbf·in (0.45 N·m).
11. Connect the fan cable to connector J1002 on the Mother Board.
Installing the VNA PCB Assembly:
12. Carefully reposition the VNA PCB Assembly over the Mother Board and prepare to secure it in place.
13. Using Figure 7-41, identify the locations of the eight (8) Phillips-head mounting screws that hold the
VNA Assembly PCB in place. Figure 7-42 shows the 8 hexagonal standoffs on the Mother Board. The
8 VNA Assembly PCB screws attach to the 8 hexagonal standoffs in the Main PCB (Mother Board).
14. Check all cables to be sure that they are securely connected and that the RF cables are outside the
standoffs on the Mother Board, and are tucked in and kept away from the case parts, especially the
battery compartment.
1. Fan
2. Fan Cable connected to MB
Figure 7-44. Removing the Fan
Caution
All cables along the lower edge of the Mother Board and VNA PCB Assembly must be routed in such
a manner that they will not be pinched between, or protrude between, the case halves of the upper
battery compartment. If any cable protrudes into the battery compartment when the case is closed,
then the cable may be damaged by pinching, or by the battery when it is inserted, or it may prevent
battery insertion.
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