HP Model 748 - VME Workstation Handbook
Hp model 748 service handbook
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Also See for Model 748 - VME Workstation:
- Owner's manual (152 pages) ,
- Manual (12 pages) ,
- Installation manual (8 pages)
Related Manuals for HP Model 748 - VME Workstation
Summary of Contents for HP Model 748 - VME Workstation
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Page 1: Service Handbook
Service Handbook Model 748 HP Part No. A4511-90605 Edition E1199 Special Online Edition Printed in U.S.A. - Page 2 BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Hewlett-Packard shall not be liable for errors con- tained herein or for incidental or consequential damages in connec- tion with the furnishing, performance or use of this material.
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Page 3: Safety And Regulatory Statements
Safety and Regulatory Statements Safety and Regulatory Statements Safety See the owner’s guide that came with your system for safety infor- mation. Regulatory Statements Emissions Regulations Federal Communications Commission (FCC) The Federal Communications Commission of the U.S. government regulates the radio frequency energy emanated by computing devices through published regulations. - Page 4 Safety and Regulatory Statements In the event that a third-party noncompliant I/O device is installed, the customer assumes all responsibility and liability arising there- from. Electrostatic Discharge (ESD) Precautions Electrostatic charges can damage the integrated circuits on printed circuit boards. To prevent such damage from occurring, observe the fol- lowing precautions during board unpacking and installation: •...
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Page 5: Table Of Contents
Contents 1 Product Information Product Description 1-2 Rack Mounting Configurations 1-5 Memory 1-5 Mass Storage 1-5 System Graphics 1-6 System Board Graphics 1-6 GSC Mezzanine (Expansion Kit) Slot 1-6 PMC Expansion 1-6 Built-In Interfaces 1-6 Model 744 System Board Interfaces 1-7 Hardware Architecture 1-10 Operating Systems 1-10 HP-UX 1-10... - Page 6 Introduction 5-2 Tools Required 5-2 Safety Precautions 5-2 New Parts 5-3 Exchange Parts Local Hewlett-Packard Sales & Service Office 5-4 Replaceable Parts 5-4 Mass Storage Module Parts 5-5 EISA and PCI Module Parts 5-9 Chassis and Power Supply Parts 5-11...
- Page 7 Contents VME Module 5-13 Model 743/744 VMEbus Board Computer Parts 5-14 Removing and Replacing Mass Storage Devices 5-15 Section Contents 5-15 Introduction 5-15 Preliminary Requirements 5-15 Removing Mass Storage Module 5-16 Procedure 5-16 Selecting Device Address 5-17 Procedure 5-17 CD-ROM 5-18 Floppy Disk Drive 5-20 DDS Tape Drive 5-21 Hard Disk Drive Address Selection 5-23...
- Page 8 Contents Preliminary Requirements 5-34 Power Supply Removal 5-35 Power Switch Assembly 5-36 Power Distribution PCA 5-37 6 Diagrams Functional Description of Model 748 Chassis 6-2 7 Reference Documentation Service Documentation 7-2 System Installation and Getting Started Documentation 7-4 8 Service Notes viii...
- Page 9 Contents Figures Model 748 Ruggedized Workstation 1-3 I/O Connector Panel 1-7 Serial Number Information 1-12 Model 744 Memory Slots 3-4 Model 748 Exploded View 5-4 SE Mass Storage Module Parts 5-5 FWD Mass Storage Module Parts 5-7 EISA and PCI Module Parts 5-9 Chassis and Power Supply Parts 5-11 VME Module Parts 5-13 Mass Storage Tray Removal 5-16...
- Page 10 Contents Tables Model 748 Ruggedized Workstation Features 1-4 Supported Monitors for Model 748 1-6 Supported PMC Graphics Upgrades 1-6 Supported AUI LAN Adapters and Devices 1-9 Supported 700/RX Family X-Terminals 1-9 HP-UX Operating Systems and Languages 1-11 Electrical Information 1-13 Physical Information 1-14 EISA, PCI, and VME Slot Power Availability 1-14 Environmental Information 2-3...
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Page 11: Product Information
Product Information... -
Page 12: Product Description
Product Information Product Description Product Description This chapter introduces the Model 748 workstation. The Model 748 uses the Model 744 board computer in one of the following configurations: Model 748/132L ruggedized workstation Model 748/165L ruggedized workstation Figure 1-1 shows the Model 748 workstation, and Table 1-1 lists the Model 748 worksta- tion features. -
Page 13: Model 748 Ruggedized Workstation
Product Information Product Description Figure 1-1 Model 748 Ruggedized Workstation... -
Page 14: Model 748 Ruggedized Workstation Features
Product Information Product Description Table 1-1 Model 748 Ruggedized Workstation Features Feature Functionality Operating system HP-UX 132 MHz PA-RISC 7300LC in Model 748/132L 165 MHz PA-RISC 7300LC in Model 748/165L Time sources Battery-backed Real-Time Clock Bus error timer Memory 1 RAM stack Maximum memory is 1GB Built-in interfaces HP Parallel, SCSI, AUI LAN, HP-HIL, RS-232C (2 ports) -
Page 15: Rack Mounting Configurations
Product Information Product Description Rack Mounting Configurations Rack mounting orientations, either front out or back out are supported. Power switching has both front and back accessibility. Status and test LEDs are located on the Model 744 VMEbus Board Computers. The mass storage module can be configured for front or rear access to removable media. -
Page 16: System Graphics
Product Information Product Description System Graphics The Model 748 supports system board (on-board) graphics. System Board Graphics These products have system board graphics configurations factory set. They can be changed by users. Table 1-2 lists the monitors supported. Note that grayscale monitors are not supported. -
Page 17: Model 744 System Board Interfaces
Product Information Product Description Model 744 System Board Interfaces The Model 744 built-in interfaces have ports on the connector panel as shown in Figure 1- 2. For full descriptions including pin-I/O information consult the appropriate model owner’s guide and service handbook. Figure 1-2 I/O Connector Panel Small Computer Systems Interface (SCSI). - Page 18 Product Information Product Description PS/2 Ports. Two PS/2 Ports are integral parts of the 743/744 VMEbus Board Computer which provide the primary interface for the PS/2 keyboard and mouse. The keyboard and mouse are part of localization kit HP A4030A. Local Area Network Interface.
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Page 19: Supported Aui Lan Adapters And Devices
Product Information Product Description Table 1-4 Supported AUI LAN Adapters and Devices LAN Adaptor Network Devices HP 28641A/B ThinLAN Transceiver HP 28645A Multiport Repeater, 1 AUI/f, 3 30Base2/m HP 28648B LAN Bridge 2 AUI/f HP 28649A IEEE 802.3 LAN to 802.5 Token Ring Bridge HP 28683A Fiber Optic Transceiver... -
Page 20: Hardware Architecture
Product Information Product Description PCI Module. The Model 748 has an optional 4-slot PCI module that accommodates stan- dard +5V bus signalling accessory cards. The PCI module requires a minimum HP-UX release of 10.20. VME Module. The VME module has six slots available for add-on cards, numbered 3 through 8 (slots 1 and 2 are used by the board computer). -
Page 21: Hp-Ux Operating Systems And Languages
Product Information Product Description Table 1-6 HP-UX Operating Systems and Languages HP-UX complies with the UNIX System V Interface Defi- Operating system nition X/Open and POSIX Specifications and will be fully compliant with Operating Systems Foundation (OSF). Standard Instrument Control Library ISU Test and Measurement (SICL)Rocky Mountain Basic/UX... -
Page 22: Product Identification
Product Information Product Identification Product Identification On the bottom, a label lists the product serial number. Its information can be interpreted as shown in Figure 1-3 below for an example serial number 6247A00001: Figure 1-3 Serial Number Information 1-12... -
Page 23: Technical Information
Product Information Technical Information Technical Information NOTE: Technical information listed herein should not be interpreted as specifications. Official specifications are listed in the system’s Technical Data Sheet. Table 1-7 shows electrical information. Table 1-7 Electrical Information Model 748; 1080 watt Power consumption 90 - 132 Volts Line voltage... -
Page 24: Support
425 mm (16.75-in.) Depth: 412.6 mm (16.24-in.) Weight: 29.0 kg (60.0 pounds) Support Support services and policies mentioned in this section are subject to change. Please con- sult your local Hewlett-Packard Sales and Service Office for the current support policies. 1-14... -
Page 25: Hardware Support
On-Site Repair Customer Repair For Return to Hewlett-Packard Repair, customers return the product to their local HP Sales and Service Office, where an HP Bench Repair Engineer troubleshoots, and repairs the hardware to the assembly level. The defective assembly is replaced with a new or rebuilt assembly and the product is returned to the customer. - Page 26 Product Information Technical Information 1-16...
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Page 27: Environmental/Installation/Pm
Environmental/ Installation/PM... -
Page 28: Overview
Environmental/Installation/PM Overview Overview This chapter lists the environmental specifications and regulatory requirements for the system. Installation and preventive maintenance information, if applicable, is also pro- vided. -
Page 29: Environmental Specifications
Environmental/Installation/PM Environmental Specifications Environmental Specifications Table 2-1 lists the environmental specifications for this workstation. Table 2-1 Environmental Information Operating temperature 0° - 55° C (without mass storage) 5° - 40° C (with mass storage) Non-operating temperature -40° - 71° C Heat dissipation Model 748i;... -
Page 30: Regulatory Requirements
Environmental/Installation/PM Regulatory Requirements Regulatory Requirements Table 2-2 lists the regulatory requirements for this workstation. Table 2-2 Regulatory Information Safety Specification: UL 1950, CSA 22.2 950-M, TUV EN60950, Finland TSH, EMKO TUE(74) DK203, Sweden’s SS4361450 Laser Safety: European Harmonized document 194 IEC 825 VBG 93 (Germany) BS4803 Part II (UK) -
Page 31: Installation
Environmental/Installation/PM Installation Installation Refer to Model 748 Owner’s Guide for system installation information. -
Page 32: Preventive Maintenance
Environmental/Installation/PM Preventive Maintenance Preventive Maintenance The system unit requires no preventive maintenance. Some removable media storage devices require operator preventive maintenance. Refer to Model 748 Owner’s Guide for more information. -
Page 33: Configuration
Configuration... -
Page 34: Power Budgeting
Configuration Power Budgeting Power Budgeting If the workstation application requires several accessory cards and mass storage devices, power budgeting may be required. This ensures the power needed for these internal devices does not exceed the power available: Devices • Model 744 VMEbus Board Computer, •... -
Page 35: Determining The Workstation's Power Needs
Configuration Power Budgeting Determining the Workstation’s Power Needs To determine the workstation’s power needs, follow these instructions: Determine the board computer’s current requirements from the Computer Current Re- quirements Worksheet (Table 3-3 or Table 3-4). To determine the maximum current usage of the Model 744 memory cards, you will need to use Figure 3-1 and Table 3-1 (for Model 744/132L) or Table 3-2 (for Model 744/165L). -
Page 36: Model 744 Memory Slots
Configuration Power Budgeting Slot 3 Slot 2 Memory Slots Slot 1 Slot 0 Model 744 Board Computer Figure 3-1 Model 744 Memory Slots Table 3-1 Model 744/132L Memory Card Current Usage Worksheet First Memory Second Third Inactive Totals Active Card Active Active Banks... -
Page 37: Model 744/165L Memory Card Current Usage Worksheet
Configuration Power Budgeting Table 3-2 Model 744/165L Memory Card Current Usage Worksheet First Memory Second Third Inactive Totals Totals Active Card Active Active Banks (+12V) (+5V) Size Bank Bank Bank 0.53 A 0.53 A 0.53 A 0.023A x ___ ________ 32 MB (+12V) 64 MB... - Page 38 Configuration Power Budgeting Write in the board computer’s concurrent requirements in the line provided for VME slots 1 and 2 in the Lower Power Supply Worksheet (Table 3-7). Determine each device’s current requirements from the Internal Device Requirements table and the VME accessory card’s specifications sheet (Table 3-5). Write in each device’s current requirements in the spaces provided in the Upper or Lower Power Supply current budgeting worksheets (Table 3-6 and Table 3-7).
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Page 39: Model 744 Current Requirements Worksheet
Configuration Power Budgeting Table 3-3 Model 744 Current Requirements Worksheet +5V dc +12V dc -12V dc Each Model 744 Board Computer Amps Amps Amps 0.1A 0.1A If 132 MHz, current for +5V dc is 4.7A ______ If 165 MHz, current for +5V dc is 6.3A RAM cards (see Table 3-1 or Table 3-2) ________ Graphics subsystems... -
Page 40: Model 743 Current Requirements Worksheet
Configuration Power Budgeting Table 3-4 Model 743 Current Requirements Worksheet +5V dc +12V dc -12V dc Each Model 743 Board Computer Amps Amps Amps If 64 MHz, current for +5V dc is 6.1A If 100 MHz, current for +5V dc is 7.5A 0.1A 0.1A RAM cards x 0.2A each =... -
Page 41: Internal Device Current Requirements
1.0 A 4 GB SE hard drive 1.0 A 1.0 A 9 GB FWD hard drive 1.2 A 0.9 A Hewlett-Packard EISA Cards: HP 25525A SCSI DIFF 3.1 A 0.05 A HP 25525B EISA SCSI 3.06 A 5 mA 5 mA HP 25560A HPIB 3.1 A... -
Page 42: Upper Power Supply Current Budgeting Worksheet
Configuration Power Budgeting Table 3-6 Upper Power Supply Current Budgeting Worksheet +5V dc +12V dc -12V dc Location Device Amps Amps Amps VME Slot 8 VME Slot 7 VME Slot 6 VME Slot 5 VME Slot4 VME Slot 3 or PMC cards in Expansion Adapter Total Current... -
Page 43: Lower Power Supply Current Budgeting Worksheet
Configuration Power Budgeting for slots 3 and 4. For example, if the card in slot 1 draws 25 W at +3.3 V dc, only 14.8 W at +3.3 V dc is available to a card in slot 2. The limits of + 5 Vdc is 25 W per slot. Table 3-7 Lower Power Supply Current Budgeting Worksheet... - Page 44 Configuration Power Budgeting 3-12...
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Page 45: Troubleshooting
Troubleshooting... -
Page 46: Introduction To Troubleshooting
Troubleshooting Introduction to Troubleshooting Introduction to Troubleshooting Troubleshooting information and procedures for the Model 743/744i board computers are divided into these sections: • Introduction to Troubleshooting • Diagnostic Overview Model 743 and Model 744 board computers use different firmware and diagnostic tools. Consult the appropriate Service Handbook for the model you are working with for specif- ics on the various tools and tests for that model. -
Page 47: Diagnostic Overview
Troubleshooting Introduction to Troubleshooting After you have all answers possible, decide what’s the most probable cause of the prob- lem. Sometimes you’ll arrive at several choices for a cause. For each choice, qualify it against the answers to the questions above. The most probable cause is the one that logi- cally justifies the correct answers to these questions. -
Page 48: Board Computer Troubleshooting
Troubleshooting Introduction to Troubleshooting Table 4-1 Diagnostic Documentation Manual Title Part Number HP 9000 Series 700i/rt Model 743 Board Computer Service A2636-90604 Handbook Model 744/132L Board Computer Service Handbook A4500-90608 Support Tools Manager User’s Manual; HP 9000 Series 700 and 5961-1612 HP 9000 Series 700 Diagnostics Manual, Volume 1 09740-90041... -
Page 49: Field Replaceable Units
Field Replaceable Units... -
Page 50: Introduction
Field Replaceable Units Introduction Introduction This chapter contains the procedures to replace assemblies in the VMEbus Board Com- puter and the Model 748i chassis components (such as the VME module, EISA/PCI mod- ule, Mass Storage module, Power supplies and chassis mounted hardware). CAUTION: Removal of the VMEbus cage requires the removal of the EISA/ PCI module first! The EISA/PCI converter to VME backplane... -
Page 51: New Parts
Following these precautions will extend the life of the computer products you maintain. New Parts New parts are available direct from: Support Materials Organization Parts Center Europe Hewlett-Packard Company Hewlett-Packard GmbH 8050 Foothills Boulevard Wolf-Hirth Strasse 33 Roseville, California 95678 USA D-7030 Boblingen, Germany... -
Page 52: Local Hewlett-Packard Sales & Service Office
Field Replaceable Units Introduction Local Hewlett-Packard Sales & Service Office Name: Address: City, State, Zip: Tel. Number: Replaceable Parts Figure 5-1 shows an exploded view of the Model 748 workstation. Figure 5-1 Model 748 Exploded View... -
Page 53: Mass Storage Module Parts
Mass Storage Module Parts Figure 5-1 and Figure 5-2 show exploded views of the Single-Ended (SE) and Fast-Wide- Differential (FWD) mass storage modules. Figure 5-1 SE Mass Storage Module Parts Table 5-2 is a SE mass storage module parts list. -
Page 54: Model 748 Se Mass Storage Module Parts List
Table 5-1 Model 748 SE Mass Storage Module Parts List Exchange New Part Description Notes Part Number Number A1094-69007 3.5 in. Flexible Disk Drive A2084-69001 525MB Hard Disk Drive, SE A2084-69002 1GB Hard Disk Drive, SE A1658-69108 2GB Hard Disk Drive, SE A1658-69009 2GB Hard Disk Drive, SE A1658-69012... -
Page 55: Fwd Mass Storage Module Parts
Figure 5-2 FWD Mass Storage Module Parts Table 5-2 is a FWD mass storage module parts list. -
Page 56: Model 748 Fwd Mass Storage Module Parts List
Table 5-2 Model 748 FWD Mass Storage Module Parts List Exchange New Part Description Notes Part Number Number A1094-69007 3.5 in. Flexible Disk Drive A1658-69016 2GB Hard Disk Drive, FWD A2084-69016 2GB Hard Disk Drive, FWD A1658-69010 2GB Hard Disk Drive, FWD A1658-69011 4GB Hard Disk Drive, FWD 7200 RPM... -
Page 57: Eisa And Pci Module Parts
EISA and PCI Module Parts The EISA and PCI trays are similar modules, with the exception of the interface modules. Figure 5-3 shows an exploded view of the EISA or PCI module parts. Figure 5-3 EISA and PCI Module Parts... -
Page 58: Model 748 Eisa And Pci Module Parts List
Table 5-3 is an EISA and PCI module parts list. Table 5-3 Model 748 EISA and PCI Module Parts List Exchange Part Description Notes Part Number Number A4309-62005 EISA Assembly A4505-66001 PCI Assembly A4309-66001 EISA Backplane Assembly A4505-60002 PCI Backplane Assembly A4309-00010 EISA Tray Assembly A4505-00011... -
Page 59: Chassis And Power Supply Parts
Chassis and Power Supply Parts Figure 5-4 shows an exploded view of the Model 748 chassis and power supply. Figure 5-4 Chassis and Power Supply Parts 5-11... -
Page 60: Model 748 Chassis And Power Supply Parts List
Table 5-4 is a Model 748 chassis and power supply parts list. Table 5-4 Model 748 Chassis and Power Supply Parts List Exchange Part Description Notes Part Number Number A4309-87901 Chassis A4309-66002 Power Distribution PCA 0950-2303 Power Supply A1473-61601 Power Switch/Cable Assembly 5-12... -
Page 61: Vme Module
VME Module Figure 5-5 shows an exploded view of the VME module. Figure 5-5 VME Module Parts 5-13... -
Page 62: Model 743/744 Vmebus Board Computer Parts
Table 5-5 is a VME module parts list. Table 5-5 Model 748 VME Module Parts List Exchange Part Description Notes Part Number Number A2636-00004 VME Cover Plate A4309-66003 VME Backplane Model 743/744 VMEbus Board Computer Parts Consult the appropriate model Service Handbook for parts and part numbers. 5-14... -
Page 63: Removing And Replacing Mass Storage Devices
Removing and Replacing Mass Storage Devices Removing and Replacing Mass Storage Devices Section Contents • Removing the Mass Storage Module • Removal and replacement instructions for mass storage devices • Device addressing and location Introduction Instructions for removing and replacing Mass Storage Devices (internal) are in this sec- tion. -
Page 64: Removing Mass Storage Module
Removing and Replacing Mass Storage Devices Removing Mass Storage Module CAUTION: The mass storage module can weigh about 10 lbs, and may be awkwardly balanced. Use care when handling the module, as dropping it could damage the mass storage devices! NOTE: All Installation procedures are the reverse of removal in this section. -
Page 65: Selecting Device Address
Removing and Replacing Mass Storage Devices Selecting Device Address Procedure Unpack the device. Set only jumpers or switches that are required to change the device SCSI address, any others should remain as shipped. The default SCSI addresses for devices is shown in Table 5-6. You should check the address as set on the failing drive and set the address on the new drive to the same value. -
Page 66: Cd-Rom
Removing and Replacing Mass Storage Devices CD-ROM Figure 5-7 and Figure 5-8 show the CD-ROM disk drive address settings. SCSI Jumpers SCSI ID SCSI ID Figure 5-7 Early Model CD-ROM Disk Drive 5-18... -
Page 67: Later Model Cd-Rom Disk Drive
Removing and Replacing Mass Storage Devices Figure 5-8 Later Model CD-ROM Disk Drive 5-19... -
Page 68: Floppy Disk Drive
Removing and Replacing Mass Storage Devices Floppy Disk Drive Figure 5-9 shows the floppy disk drive address settings. Target SCSI ID 0 1 2 3 4 5 6 Jumpers Figure 5-9 Floppy Disk Drive 5-20... -
Page 69: Dds Tape Drive
DDS Tape Drive Figure 5-10 shows the DDS tape drive address settings. SCSI ID SCSI ID Figure 5-10 DDS Tape Drive Address Selection 5-21... -
Page 70: Later Model Dds Tape Drive Address Selection
Figure 5-11 Later Model DDS Tape Drive Address Selection 5-22... -
Page 71: Hard Disk Drive Address Selection
Hard Disk Drive Address Selection All replacement hard disk drives are shipped with jumper/configuration documentation. Please refer to the documentation shipped with the replacement disk drive for jumper set- tings and any applicable software patch dependencies. Device Locations in Tray Figure 5-12 through Figure 5-16 show the possible device locations for the Model 748 workstation. -
Page 72: Device Locations 2 Of
Figure 5-13 Device Locations 2 of 4 5-24... -
Page 73: Device Locations 3 Of
Figure 5-14 Device Locations 3 of 4 5-25... -
Page 74: Device Locations 4 Of
Figure 5-15 Device Locations 4 of 4 5-26... -
Page 75: Fwd Device Locations
Figure 5-16 FWD Device Locations 5-27... -
Page 76: Mass Storage Device Removal
Mass Storage Device Removal NOTE: When replacing a floppy disk drive, you may need to add or replace a bezel. Procedure Power & SCSI cables • Disconnect both the power and SCSI cables connected to the device. Retaining screws • Loosen the four screws holding the device in the tray. -
Page 77: Eisa Or Pci Module Removal
EISA or PCI Module Removal EISA or PCI Module Removal Preliminary Requirements Shut down any applications. Shut down the OS. Refer to the owner’s guide for information on properly shutting down HP-UX. Turn power off to the Model 748. Set up a static-free work place to handle the EISA or PCI card cage. Disconnect power cords. -
Page 78: Eisa Or Pci Converter Board And Backplane Removal
EISA or PCI Module Removal EISA or PCI Converter Board and Backplane Removal Remove any cards installed in cage. In an EISA card cage, remove the two HP HIL connector screws (1 in Figure 5-19) lo- cated on the front of the cage to free the connector. Remove the screw (2 in Figure 5-19) on the converter board. -
Page 79: Vme Module Removal
VME Module Removal VME Module Removal CAUTION: The EISA or PCI card cage MUST be removed before the VME cage can be removed! Preliminary Requirements Shut down any applications. Shut down the OS. Refer to the owner’s guide for information on properly shutting down HP-UX. -
Page 80: Procedure To Remove Vme Module
VME Module Removal Procedure to remove VME Module Remove all external cables connected to the 743/744 VMEbus computer(s) and any other VME card. Loosen captive screws (located in handles of cage) Slide VME card cage out of unit. Place cage on static mat. 5-32... -
Page 81: Vme Backplane Removal
VME Module Removal NOTE: If VME backplane is to be removed, all VME Cards must be removed prior to cage removal. VME Backplane Removal Remove VME card cage as directed in previous steps. Place the VME card cage on static mat with the EISA connector facing up. Remove the three screws on the backplane. -
Page 82: Power Supply And Chassis Parts Replacement
Power Supply and Chassis Parts Replacement Power Supply and Chassis Parts Replacement The following parts are covered by this section: Power Supply(s) Power Distribution PCA Power Switch Assembly Preliminary Requirements All procedures in this section require the following: OS shutdown Power removed from the Model 748 Power cords removed from power supplies Ground wires removed from power supplies (M4 grounding points) -
Page 83: Power Supply Removal
Power Supply and Chassis Parts Replacement Power Supply Removal Retaining Screw Remove power cord(s) and ground wire(s) connected to power supply. Loosen retaining screw. Slide out power supply. Repeat process to remove other supply. 5-35... -
Page 84: Power Switch Assembly
Power Supply and Chassis Parts Replacement Power Switch Assembly Remove both power supplies as previously directed. Disconnect the power switch assembly connector from the power distribution PCA. Figure 5-20 Magnified View of Power Switch Tabs Spread the Power Switch support bracket tabs outward, as shown in Figure 5-20. Remove Switch. -
Page 85: Power Distribution Pca
Power Supply and Chassis Parts Replacement Power Distribution PCA Remove the EISA and VME card cages following the procedures given in this chapter. Remove both power supplies following the procedures given in this chapter. As shown in Figure 5-21, loosen the thumb screw, then slide the power distribution PCA connector (located on wall assembly) down to disconnect from wall. -
Page 86: Center Wall Removal
Power Supply and Chassis Parts Replacement Rotate lower edge of the center wall to the right about 2 inches, then slide tabs at the top of the wall out of slots in the mass storage module support. Refer to Figure 5-22. Set aside wall. - Page 87 Power Supply and Chassis Parts Replacement Loosen captive screw holding the power distribution PCA circuit board to the front of the chassis. Slide board to right to remove. Refer to Figure 5-23. Figure 5-23 Power Distribution PCA Removal from Chassis 5-39...
- Page 88 Power Supply and Chassis Parts Replacement 5-40...
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Page 89: Diagrams
Diagrams... -
Page 90: Functional Description Of Model 748 Chassis
Diagrams Functional Description of Model 748 Chassis Functional Description of Model 748 Chassis The Model 748 chassis provides the following: • Two 300-Watt power supplies (one for VME slots 3 to 8, and one for VME slots 1 and 2, Mass Storage, and EISA). •... -
Page 91: Reference Documentation
Reference Documentation... -
Page 92: Service Documentation
Reference Documentation Introduction Introduction Information in this chapter should help you in various situations. The references include part numbers of many hardware documents relating to these workstations. Service Documentation Table 7-1 Related Service Documentation Manual Title Part Number HP Model 743 Board Computer Service A2636-90604 Handbook HP Model 744 Board Computer Service... - Page 93 Reference Documentation Introduction Table 7-2 Diagnostic Documentatio Manual Title Part Number Support Tools Manager User’s Manual; HP 9000 Series 700 5961-1612 and 800 HP Apollo 9000 Series 700 Diagnostics Manual, Volume 1 09740-90041 HP Apollo 9000 Series 700 Diagnostics Manual, Volume 2 09740-90043 HP Apollo 9000 Series 700 Support Tape/CD-ROM User’s B2380-90000...
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Page 94: System Installation And Getting Started Documentation
Reference Documentation System Installation and Getting Started Documen- tation System Installation and Getting Started Documentation Table 7-3 System Installation and Getting Started Documentation Manual Title Part Number Model 743 Board Computer Owner’s Guide A2636-90603 Model 744 Board Computer Owner’s Guide A4511-90606 HP-UX 9.05 VME Configuration and Driver Development A2636-90020... - Page 95 Service Notes...
- Page 96 Service Notes Place service notes here.
- Page 97 Index SCSI settings, 5-20 altitude, 2-3 parallel interface, 1-7 fuctional description, 6-2 audio interface, 1-9 part numbers board computer, 5-14 chassis, 5-12 graphics, 1-4, 1-6 block diagram, 6-2 EISA module, 5-10 upgrades, 1-6 budgeting power, 3-2 mass storage GSC slots, 1-6 built-in interfaces, 1-4, 1-6 FWD, 5-8 SE, 5-6...
- Page 98 Index power switch removal, 5-36 preventive maintenance, 2-6 product description, 1-2 product identification, 1-12 PS/2 ports, 1-8 rack mounting, 1-5 RAM cards, 1-5 regulatory requirements, 2-4 repair services, 1-15 repair strategy, 4-2 SCSI, 1-7 default ID, 5-17 hard disk drives, 5-23 selftests, 4-3 serial interface, 1-7 serial number, 1-12...