IBM 4685-K03, Installation, Operation And Maintenance Manual

Page: 43 / 50

Replacing the mode key
1. Detach the guide label. Remove the two screws labeled
1
2. Remove the rear cover. See “Replacing the rear cover” on page 22.
3. Disconnect the cable leading to the control card. Remove the mode key
2 .
Reverse the procedure to reassemble. Use the new guide label attached to the FRU.
1
2
Replacing the speaker
1. Remove the rear cover. See “Replacing the rear cover” on page 22.
2. Open the two latches labeled
1 that hold the speaker in place.
3. Disconnect the cable labeled 2 from the control card. Remove the speaker 3 .
Reverse the procedure to reassemble.
Replacing the top cover assembly
1. Remove the rear cover. See “Replacing the rear cover” on page 22.
2. Remove the control card. See “Replacing the control card” on page 23.
3. Remove the speaker. See “Replacing the speaker.”
4. Remove the MSR. See “Replacing the MSR” on page 23.
5. Remove the mode key. See “Replacing the mode key” on this page.
6. Use the new guide label attached to the FRU.
7. Replace the key labels.
Reverse the procedure to reassemble.
Chapter 5 Maintenance of the keyboard 27