IBM 7133 Series, Service Manual

Page: 199 / 230

| b. Remove the four bypass cards (see “Signal Cards and Bypass Cards” on
| page 3-43).
|
9
Reach into the back of the 7133. Unscrew the four captive screws
1
, and remove
| the bracket assembly
2
.
| Note: The diagrams in these instructions represent 7133 Models 010 and 020.
| The procedure for Models 500 and 600 is the same, except that everything is turned
| through 90 degrees.
|
10
If you are servicing a Model 020 or 600, remove the two self-adhesive plastic air
| baffles
4
. You will need to install two new plastic air baffles (part 31H8722) after
| you have replaced the backplane assembly.
11
Unscrew the four captive screws
3
.
Chapter 3. Removal and Replacement Procedures
3-53