4-30 420 Series
10. Disconnect the sound board power cable from PJ18 on the system board
(located under left side of power supply cover - this cover is not removed until
Section 4.12.)
Figure 4-32 Removing the sound board
11. Unlatch the audio jack cover on the sound board and remove it.
12. Lift off the tape securing the membrane switch, disconnect the membrane
switch cable from PJ10, and lift out the switch.
Figure 4-33 Removing the membrane switch
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