Servo Board Removal; Servo Board Replacement - IBM 5150 Hardware Maintenance Manual

Servo Board Removal
1.
Position System Unit Power switch to OfT, unplug System Unit
power cord, and disconnect all cables from rear of System
Unit.
r'\2.
Set the Display, Keyboard, and Printer away from System Unit
work area.
3. Remove System Unit cover (See page 3-98).
4. Remove Diskette Drive (See page 3-7).
5. Disconnect connectors 20 and 21 from servo board.
6.
Remove servo board retaining screws and lift board from
Diskette Drive.
(Note: Do not lose spacers between servo board and frame
when removing board).
Servo Board Replacement
1. Place servo board in position at rear of Diskette Drive.
2. Replace retaining screws while holding spacers in place
between servo board and frame.
~
3. Connect connectors 20 and 21 to servo board.
4.
Replace Diskette Drive (See page 3-9).
5.
Replace System Unit cover (See page 3-98).
6. Reconnect cables to System Unit.
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