Driver Circuit Card Replacement - IBM 5150 Hardware Maintenance Manual

Driver Circuit Card Replacement
1.
Align two connectors CN4 and CNS
It
on bottom of driver
circuit card with connectors CN4 and CNS on control circuit
card.
CAUTION: CN4 and CNS are not keyed. Verify proper
alignment before powering on to prevent circuit card damage.
2. Connect driver circuit card to control circuit card by pressing
down firmly on connectors. Be sure to guide connector CN6
cable into slot on left front edge of driver circuit.
3. Install two screws
Ia.
4. Install connector CN6
II.
o
0
000
5.
Replace top cover (See page 3-90).
r'\6. Replace access cover.
7.
Replace forms rack.
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