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Dell OptiPlex All-in-One Plus 7420 - Page 97

Dell OptiPlex All-in-One Plus 7420
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Figure 67. Removing the system board
Steps
1. Disconnect the touchscreen cable from its connector (TOUCH) on the system board.
2. Disconnect the display-backlight cable from its connector (LCB BACKLIGHT) on the system board.
3. Using the pull tab, disconnect the camera cable from its connector (WEBCAM) on the system board.
4. Press and hold the securing clip and disconnect the processor-power cable from its connector (ATX CPU) on the system
board.
5. Disconnect the fan cable from its connector (FAN CPU) on the system board.
6. Disconnect the control-signal cable from its connector (CTRL) on the system board.
7. Disconnect the system-board power cable from its connector (ATX SYS) on the system board.
8. Disconnect the power-supply fan cable from its connector (FAN SYS) on the system board.
9. Lift the latch and disconnect the audio cable from its connector (MB-AUDIO) on the system board.
10. Lift the latch and disconnect the high-speed cable from its connector (MB-HS) on the system board.
11. Lift the latch and disconnect the power cable from its connector (MB-PWR) on the system board.
12. Pinching the securing clips on either side of the display-cable connector, disconnect the display cable from its connector
(LVDS) on the system board.
13. Remove the seven screws (M3x5) that secure the system board to the display-assembly base.
14. Remove the screw (M3x12) that secures the system board to the display-assembly base.
15. Gently lift the system board off the display-assembly base.
Removing and installing Field Replaceable Units (FRUs)
97

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