IBM 4247 Maintenance Information page 375

Microcode
Module U1
Microcode
Module U2
Bevel
Corner
Cut Off
4247 A00 Level 1 Logic Board
Microcode
Module U2
Microcode
Module U54
4247 A00 Level 2 Logic Board
Microcode
Module U57
Microcode
Module U2
Microcode
Module U54
4247 A00 Level 3 Logic Board
Microcode
Module U57
Microcode
Module U2
Corner Cut Off
Bevel
4247 A00 Level 4 Logic Board
Figure 117. Model A00 Rear View of Microcode Module Locations and Orientation
Corner
Cut Off
Bevel
Corner
Cut Off
Bevel
Microcode
Module U54
Chapter 5. Removals and Adjustments
375