I/O Drawer Addressing ....................25
I/O Drawer and Power Supply LED Status..............26
Secondary I/O Drawer Operator Panel Message Hierarchy ........27
Primary I/O Drawer Operator Panel Behavior During Power-On.......28
Secondary I/O Drawer Operator Panel Behavior During Power-On......29
Logical and Physical Locations ..................29
Physical Location Codes ....................29
Location Code Format ....................29
Multiple FRU Callout Instructions .................30
AIX Location Codes ......................32
AIX and Physical Location Code Reference Tables ...........33
Cabling the CEC Drawer, Primary I/O Drawer, and Secondary I/O Drawer(s) . . . 53
Connecting JTAG and V/S COMM Cables..............53
Connecting RIO and SPCN Cables ................53
System Cable Diagrams.....................63
CEC Drawer Cable .....................63
Primary I/O Drawer Cable ...................64
Secondary I/O Drawer Cable ..................65
DC Power Cable Routings ...................66
Specifications ........................67
CEC Drawer .......................67
Noise Emission Notes....................71
Power Cables ........................72
Service Inspection Guide ....................73
Chapter 2. Diagnostics Overview .................75
Maintenance Analysis Procedures (MAPs)...............75
Checkpoints.........................76
FRU Isolation ........................77
Chapter 3. Maintenance Analysis Procedures (MAPs) ..........79
Entry MAP .........................79
Quick Entry MAP .......................80
Quick Entry MAP Table of Contents ................80
MAP 1020: Problem Determination .................87
MAP 1520: Power.......................92
Map 1521: Cannot Power On the Primary I/O Drawer, Operator Panel Does Not
Show OK Prompt ......................94
Map 1522: Cannot Power On the CEC Drawer.............101
Map 1523: Cannot Power On the Secondary I/O Drawer, Operator Panel Power
Present LED Does Not Come On ................108
Map 1524: The SPCN Error Codes Table Directed You Here and the Error Code is
1011 1C0x ........................116
MAP 1540: Minimum Configuration.................120
Chapter 4. Checkpoints ....................145
IPL Flow .........................145
Service Processor Checkpoints ..................148
Firmware Checkpoints .....................154
Boot Problems and Concerns ..................165
iv Service Guide