IBM 7012 manual Three-Digit Display Models 320, 32E, 32H, Flex Circuit Cable Lock

Three-Digit Display: Models 320, 32E, 32H

Removal

1.Set the power switches of the attached devices to Off.

2.Set the power switch of the system unit to Off and unplug the external power cable.

3.Do the removal procedure in ªRear Coverº on page 3-3.

4.Do the removal procedure in ªTop Coverº on page 3-4.

5.Do the removal procedure in ªFront Coverº on page 3-6.

6.Open the plastic cable lock on the connector by pulling each end up (with a small screwdriver or your fingers).

7.Pull the flex circuit out of the connector.

8.To remove the three-digit display from the card guide, push the back of the display while twisting and pulling the display from the front.

Replacement

1.While aligning the flex-circuit cable in its plastic guide shield, twist and push the three-digit display into the card guide frame.

2.Open the plastic cable lock on the connector by pulling it up.

3.With the contact side of the ribbon cable facing toward the center of the planar, push the flex circuit into the connector.

4.Close the plastic cable lock on the connector by pushing it down into the closed position.

5.Do the replacement procedure in ªFront Coverº on page 3-6.

6.Do the replacement procedure in ªTop Coverº on page 3-4.

7.Do the replacement procedure in ªRear Coverº on page 3-3.

Flex Circuit

Cable Lock

3-54Installation and Service Guide