2Installation and Service Guide

memory card, removal, 3-37

operating environment -class B, 1-14, 1-15

operating voltage, 1-14, 1-15

phase pin, 4-3

planar, removal, 3-40

power cable characteristic, 1-16

part number and country, 5-16 type, 5-16

power source loading, 1-14, 1-15

power supply, 1-14, 1-15 removal, 3-16, 3-18

rear cover, removal, 3-3

removal and replacement procedure adapter cards, 3-24

attached devices, 3-28 battery, 3-58

card guide frame, 3-43 contact strips, 3-59 CPU card, 3-30, 3-31

disk drive, 3-8, 3-10, 3-12, 3-14 diskette drive, 3-20

ethernet riser card, 3-24 external diskette riser card, 3-24 fan and air duct, 3-35

front cover, 3-6 front fan, 3-46 key lock, 3-48

L2 cache, 3-34 media drives, 3-22 memory card, 3-37 power supply, 3-16, 3-18 rear cover, 3-3

rear fan, 3-45 reset switch, 3-50 serial port card, 3-53

serial ports flex circuit, 3-52 system planar, 3-40

three digit display, 3-55, 3-56 top cover, 3-4

toroids, 3-57

voltage regulator card, 3-33

riser card, 3-9

safety notice, installation, 4-2

SCSI device record, A-1 attached, A-4 internally installed, A-1

SCSI-attached disk drive, removal, 3-10

serial ports flex cable, removal, 3-53

service inspection check point, 1-17 when to perform, 1-17

SIMM, memory removal, 3-39

Small Computer Systems Interface (SCSI), Input/Output controller, 3-10

specification information, 1-14 models 380 and 390, 1-15

standard I/O port, device connection, 4-5

static electricity discharge, 3-2

static-sensitive device, handling, 3-2

system unit

device arrangement, 4-6 setting up, 4-4

system unit location front view with cover

early models, 1-1 later models, 1-2

front view without cover early models, 1-4 later models, 1-4 model 397, 1-5

planar connector location, 1-5

top cover, removal, 3-4

toroids, removal, 3-57

weight, 1-14, 1-15

IBM 7012 manual 2Installation and Service Guide