IBM 7012 manual Connector Handle

Three-Digit Display Models 340, 34H, 350, 355, 360/36T, 365, 370/37T, and 375, 380, 390, 39H

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.If the system unit has a rear cover, do the rear cover removal procedure on page 3-3.

4.Do the top cover removal procedure on page 3-4.

5.On all models except 380, 390, and 39H, do the front cover removal procedure on page 3-6.

6.On models 380, 390, and 39H, do the card guide frame removal procedure on page 3-43.

7.Pull up on the connector handle of the three-digit display.

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.On models 380, 390, and 39H, do the card guide frame replacement procedure on page 3-43.

3.Push the 3-digit display connector into the planar connector.

4.On all models except 380, 390, and 39H, do the front cover replacement procedure on page 3-6.

5.Do the top cover replacement procedure on page 3-4.

6.If the system unit has a rear cover, do the rear cover replacement procedure on page

7.Set the power switches of the attached devices to On.

8.Set the power switch of the system unit to On and plug in the external power cable.

Connector

Handle

Removal and Replacement Procedures 3-55