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HP Model 745 HP Model 745 Service Handbook - Page 116

Lithium batteries can explode if mistreated. Do

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Field Replaceable Units Model 744 Board Computer Parts Table 5-3 Replaceable Parts Callout Number 1 2 3 4 Not Shown Not Shown Not Shown Not Shown Not Shown Not Shown Not Shown Not Shown Not Shown Not Shown Not Shown Not Shown Exchange Part Number A4500-69001 A4500-69006 A4502-69001 A4503-69001 A4500-69005 A4500-69018 NonExchange Part Number A2636-00002 1420-0541 A4504-60001 A4504-60002 A4979-60001 A4500-00003 A2636-61601 A2636-61602 A2636-61604 A2636-61605 A4500-62009 A4500-62004 S2413-40001 A2261-62021 Description System board: 132 MHz (with on-board graphics) System board: 165 MHz (with on-board graphics) 32 MB RAM card 64 MB RAM card 128 MB RAM card 256 MB RAM card Slot 2 Cover Plate Real-time clock battery (See Warning Below) PMC Bridge Adapter Board PMC Expansion Adapter Board PMC Visualize-EG Graphics Card Standoff, Memory Cable, 9/9 Serial External Cable, 15/15 AUI, External Cable, 15/15, Parallel, External Cable, 9/9, Audio, External Cable, EVC Monitor, 15-Pin-35-pin Cable, Monitor, 15-Pin to 15-pin Chip Extractor, Firmware Rackmount Kit WARNING: Replace battery only with HP Part No. 1420-0541! Using any other battery can cause fire or explosion. Lithium batteries can explode if mistreated. Do not put lithium batteries in fires, try to recharge, or disassemble them. 5-8

Section	Page
Service Handbook Model 745	1
Safety and Regulatory Statements	3
Safety	3
Regulatory Statements	3
Emissions Regulations	3
Federal Communications Commission (FCC)	3
Contents	5
1 Product Information	15
The Model 745 Industrial Controller	17
Features	19
Typical External Devices	20
Physical Dimensions and Power Requirements	21
Board Computer Configurations	22
Cables	23
Operating System Overview	24
Manuals for System Information	25
HP-UX	25
HP VUE	25
HP CDE	25
Online Sources of Information	26
Audio	27
Product Identification	28
Support	28
Hardware Support	28
Field Repair Philosophy	28
2 Environmental/ Installation/PM	31
Overview	32
Environmental Specifications	33
Regulatory Requirements	34
Installation	35
Preventive Maintenance	36
3 Configuration	37
Boot Console User Interface Features	38
Main Menu	39
Configuration Menu	40
Information Menu	41
Service Menu	42
Accessing the Boot Console Interface	43
Booting Your Workstation	45
Searching for Bootable Media	47
Restoring the Factory Default Configuration	48
Displaying and Setting Paths	49
Displaying and Setting the Monitor Type	52
The Monitor Command	52
Displaying the Current Monitor Configuration	53
Main Menu: Enter command > configuration	53
Setting the Monitor Type	54
Setting the Monitor Type at Power On	56
Using the Emergency Interactive Console Search	57
Displaying the Current Memory Configuration	59
Memory Information Example	59
Displaying the Status of the System I/O	61
Setting the Auto Boot and Auto Search and Auto Start Flags	62
Displaying and Setting the Security Mode	64
Displaying and Setting the Fastboot Mode	65
Displaying the LAN Station Address	66
Displaying System Information	67
Displaying PIM Information	68
Power Budgeting	69
4 Troubleshooting	71
Dealing with a Boot Failure	72
Searching for Bootable Media	74
Stable Storage	74
Boot Command Notations	75
ISL Environment	76
Firmware Selftest Failures	77
Interpreting the Front Panel LEDs	77
Interpreting the Diagnostic Chassis Codes	79
Running ODE-Based Diagnostics	91
Running System Verification Tests	93
Dealing with HPMC (Uncorrectable Error)	95
HPMC Caused by a Data Cache Parity Error	98
HPMC Caused by a Multi-Bit Memory Parity Error	99
Interpreting the Table	99
Determining the Faulty Memory Card	100
5 Field Replaceable Units	109
Introduction	110
Tools Required	110
Safety Precautions	110
New Parts	111
Exchange Parts	111
Local Hewlett-Packard Sales & Service Office	111
Replaceable Parts	112
Model 744 Board Computer Parts	115
Removing and Replacing the Model 744 Board Computer	117
Preliminary Requirements	117
Removal	118
Replacement	118
Removing and Replacing RAM Cards	120
Preliminary Requirements	120
Removal	120
Replacement	121
Removing and Replacing the PMC Adapters	122
Preliminary Requirements	122
Removal and Replacement	122
Removing and Replacing the Front Panel	129
Preliminary Requirements	129
Removal and Replacement	130
Firmware ICs	131
Description	131
Removing and Replacing the Real-Time Clock Battery	132
Preliminary Requirements	132
Removal	132
Replacement	132
Removing the Top Cover, Front Bezel, and Mid-Tray	133
Preliminary Requirements	133
Replacing Mass Storage Devices	137
Procedure	137
Selecting Device Address	137
Procedure	137
CD-ROM	138
Floppy Disk Drive	139
DDS Tape Drive	140
Hard Disk Drive Address Selection	141
Device Locations	141
Removing a Device from the Mass Storage Carriers	142
Installing a Device in a Mass Storage Carrier	143
EISA or PCI Backplane Replacement	148
Preliminary Requirements	148
Procedure	148
Power Supply Replacement	150
Preliminary Requirements	150
Power Supply Removal	150
System Backplane Replacement	153
Preliminary Requirements	153
System Backplane Removal	154
Fuse Replacement	155
Preliminary Requirements	155
Rear Fan Replacement	156
Front Fans Replacement	158
Preliminary Requirements	158
6 Diagrams	159
Functional Description of Model 745 Chassis	160
7 Reference Documentation	163
Introduction	164
Service Documentation	164
System Installation and Getting Started Documentation	166
8 Service Notes	167