IBM 6151 Maintenance And Service Manual page 106

77x
Fixed-Disk Drive Type E70
Additional Tests: None
Removal Procedure: If the drive is in the system unit, see
Fixed-Disk Drive Removal in Section 4,
otherwise see the service information for
the unit containing the drive.
Repair Checkout: Run the Fixed-Disk Drive and Media
Checkout.
78x
Keyboard
Additional Tests: None
Removal Procedure: See the Keyboard "Removal Procedure"
on page 10-140-1.
Repair Checkout: Run the Keyboard Checkout.
79x
Mouse
Additional Tests: None
Removal Procedure: See the Mouse "Removal Procedure" on
page 10-143-1.
Repair Checkout: Run the Mouse Checkout.
3-0020-28 Service Manual