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HP Compaq dx7200 MT Reference Manual Download Page 84

6–12

390812-001

Service Reference Guide, dx7200

Removal and Replacement Procedures— Microtower (MT) Chassis

4. Before installing an expansion card, remove the expansion slot cover or the existing 

expansion card.

✎

Before removing an installed expansion card, disconnect any cables that may be attached to the 
expansion card.

a.

If you are installing an expansion card in a vacant socket, remove the appropriate 
expansion slot cover on the back of the chassis. Pull the slot cover straight up from the 
socket then away from the inside of the chassis.

b.

If removing a standard PCI expansion card, hold the card at each end, and carefully rock 
it back and forth until the connectors pull free from the socket. Pull the expansion card 
straight up from the socket 

1

 then away from the inside of the chassis 

2

 to release it 

from the chassis frame. Be sure not to scrape the card against the other components.

Summary of Contents for Compaq dx7200 MT

Page 1: ...ovides information on the removal and replacement of all parts as well as information on troubleshooting Desktop Management setup utilities PATA and SATA drives safety routine care connector pin assignments POST error messages and diagnostic indicator lights Document Part Number 390812 001 ...

Page 2: ......

Page 3: ...Service Reference Guide HP Compaq Business PC dx7200 Series 1st Edition Document Part Number 390812 001 July 2005 ...

Page 4: ...rued as constituting an additional warranty HP shall not be liable for technical or editorial errors or omissions contained herein This document contains proprietary information that is protected by copyright No part of this document may be photocopied reproduced or translated to another language without the prior written consent of Hewlett Packard Company ÅWARNING Text set off in this manner indi...

Page 5: ...sight Diagnostics 2 14 2 3 1 Accessing HP Insight Diagnostics 2 14 2 3 2 Survey Tab 2 15 2 3 3 Test Tab 2 16 2 3 4 Status Tab 2 17 2 3 5 Log Tab 2 17 2 3 6 Saving and Printing Information in HP Insight Diagnostics 2 17 2 3 7 Downloading the Latest Version of HP Insight Diagnostics 2 18 3 Desktop Management 3 1 Initial Configuration and Deployment 3 1 3 1 1 Altiris Deployment Solution Agent 3 2 3 1...

Page 6: ... Serial and Parallel ATA Drive Guidelines and Features 4 1 SATA 1 5 and 3 0 Hard Drives 4 1 4 2 SATA Hard Drive Cables 4 2 4 2 1 SATA Data Cable 4 2 4 2 2 SATA Power Cable 4 2 4 3 PATA Device Information 4 3 4 4 PATA Cables 4 3 4 4 1 PATA Data Cable 4 3 4 4 2 PATA Power Cable 4 4 4 5 PATA Drive Installation Guidelines 4 4 4 5 1 PATA Device Classes 4 4 4 6 SATA SMART Drives 4 5 4 7 Drive Capacities...

Page 7: ...ternal Security Devices 6 2 6 2 1 Installing a Cable Lock 6 2 6 2 2 Installing a Padlock 6 3 6 3 Access Panel 6 4 6 4 Front Bezel 6 5 6 5 Front Drive Bezels 6 7 6 5 1 5 25 Drive Bezel Blank 6 7 6 5 2 Diskette Drive Bezel 6 8 6 5 3 3 5 Drive Bezel Blank 6 8 6 6 Cable Management 6 9 6 7 Memory 6 10 6 8 Expansion Cards 6 12 6 9 Drives 6 16 6 9 1 Drive Positions 6 16 6 9 2 Removing a Drive 6 17 6 9 3 ...

Page 8: ...xpansion Card 7 15 7 9 3 PCI Express Expansion Card 7 17 7 10Drives 7 18 7 10 1Drive Positions 7 18 7 10 2Optical Drive 7 19 7 10 3External 3 5 inch Drive 7 21 7 10 4Primary Hard Drive 7 23 7 11Fan Shroud 7 27 7 12Chassis Fan 7 28 7 13Front I O Devices 7 29 7 14Power Switch Assembly 7 30 7 15Heatsink 7 31 7 16Processor 7 32 7 17Speaker 7 34 7 18Power Supply 7 35 7 19System Board 7 37 7 20Battery 7...

Page 9: ...language on the hard drive the installation process could take up to 60 minutes 1 1 Installing or Upgrading Device Drivers To install hardware devices such as a printer a display adapter or network adapter after the operating system installation is completed the operating system needs access to the appropriate software drivers for the devices If prompted for the I386 directory replace the path spe...

Page 10: ... All Programs Accessories System Tools Backup 2 Use the Backup or Restore Wizard to restore files from a backup file A backup file can be on a hard disk a floppy disk CD USB flash media device tape drive or any other removable or nonremovable media 1 4 Converting to NTFS Windows XP Professional To convert a FAT or FAT32 volume to NTFS 1 Click Start All Programs Accessories Command Prompt 2 Type co...

Page 11: ...re available only in selected languages You can obtain the latest version of these files in English and selected other languages in one of three ways Support Software CD HP Web site at www hp com Restore Plus CD which is supplied with many HP models Additional HP software may be required in certain situations ...

Page 12: ...1 4 390812 001 Service Reference Guide dx7200 Installing the Operating System ...

Page 13: ...ish and manage passwords and other security features Establish and manage energy saving timeouts All features identified in this chapter may not be available on all HP products 2 1 Power On Self Test POST POST is a series of diagnostic tests that runs automatically when the system is turned on POST checks the following items to ensure that the computer system is functioning properly Keyboard Memor...

Page 14: ...ayed regardless of the mode selected To manually switch to Post Messages Enabled during POST press any key except F1 through F12 Establish an Ownership Tag the text of which is displayed each time the system is turned on or restarted Enter the Asset Tag or property identification number assigned by the company to this computer Enable the power on password prompt during system restarts warm boots a...

Page 15: ...r message disregard it 3 Select your language from the list and press the Enter key 4 A choice of five headings appears in the Computer Setup Utilities menu File Storage Security Power and Advanced 5 Use the arrow left and right keys to select the appropriate heading Use the arrow up and down keys to select the option you want then press Enter To return to the Computer Setup Utilities menu press E...

Page 16: ... containing a new BIOS Replicated Setup Save to Removable Media Saves system configuration including CMOS to a formatted 1 44 MB diskette a USB flash media device or a diskette like device a storage device set to emulate a diskette drive Restore from Removable Media Restores system configuration from a diskette a USB flash media device or a diskette like device Default Setup Save Current Settings ...

Page 17: ... 1 2 MB Drive Emulation Allows you to select a drive emulation type for a certain storage device For example a Zip drive can be made bootable by selecting diskette emulation Drive Type Emulation Options ATAPI Zip drive None treated as Other Diskette treated as diskette drive ATA Hard disk None treated as Other Hard disk treated as hard drive Legacy diskette No emulation options available CD ROM dr...

Page 18: ...ation mode selected automatically by the BIOS should not be changed If the selected translation mode is not compatible with the translation mode that was active when the disk was partitioned and formatted the data on the disk will be inaccessible Translation Parameters ATA disks only This feature appears only when User translation mode is selected Allows you to specify the parameters logical cylin...

Page 19: ...Primary Device 1 SATA 3 if present is seen as SATA Secondary Device 1 Combined IDE Controller is the other option Up to 2 PATA and 2 SATA devices may be accessed in this mode The SATA and PATA controllers appear as one combined IDE controller Use this option with Microsoft Windows 98 and earlier operating systems PATA Primary Device 0 replaces SATA 1 PATA Primary Device 1 replaces SATA 3 IDE Contr...

Page 20: ...one time Security Smart Card Options Allows you to enable disable the Smart Card to be used in place of the Power On Password This option only appears if a Smart Card reader is attached to the system Setup Password Allows you to set and enables setup administrator password If the setup password is set it is required to change Computer Setup options flash the ROM and make changes to certain plug an...

Page 21: ... the current chassis serial number is invalid These ID numbers are normally set in the factory and are used to uniquely identify the system Keyboard locale setting for example English or German for System ID entry DriveLock Security Allows you to assign or modify a master or user password for drives that support ATA Security When this feature is enabled the user is prompted to provide one of the D...

Page 22: ...ssors power consumption when the processor is idle This option is only available when supported by the processor ACPI S3 Support Enables or disables ACPI S3 support ACPI S3 Hard Disk Reset Enabling this causes the BIOS to ensure hard disks are ready to accept commands after resuming from S3 before returning control to the operating system ACPI S3 PS2 Mouse Wakeup Enables or disables waking from S3...

Page 23: ...ote wakeup boot source remote server local hard drive After Power Loss off on previous state Set this option to ON Off causes the computer to remain powered off when power is restored On causes the computer to power on automatically as soon as power is restored On allows you to power on the computer using a power strip switch if the computer is connected to an electric power strip Previous state c...

Page 24: ...of RAM Execute Memory Test Restarts the computer and executes the POST memory test BIOS Power On Allows you to set the computer to turn on automatically at a time you specify Onboard Devices Allows you to set resources for or disable onboard system devices diskette controller serial port or parallel port PCI Devices Lists currently installed PCI devices and their IRQ settings Allows you to reconfi...

Page 25: ...ttern that uniquely identifies each sleep state 1 blink followed by 2 sec pause S1 2 blinks followed by 2 sec pause S2 3 blinks followed by 2 sec pause S3 Integrated Video enable disable Allows you to use integrated video and PCI Up Solution video at the same time available on some models only Inserting a PCI or PCI Express video card automatically disables Integrated Video When PCI Express video ...

Page 26: ... of effectively identifying diagnosing and isolating hardware issues The Survey tab is displayed when you invoke HP Insight Diagnostics This tab shows the current configuration of the computer From the Survey tab there is access to several categories of information about the computer Other tabs provide additional information including diagnostic test options and test results The information in eac...

Page 27: ...select the Summary view to see limited configuration data or select the Advanced view to see all the data in the selected category Regardless of whether you choose Advanced or Summary the following categories of information are available on the Survey tab All Gives a listing of all categories of information about the computer Overview Gives you a listing of general information about the computer A...

Page 28: ...e Interactive mode but these require user intervention Custom Test Provides the most flexibility in controlling the testing of a system The Custom Test mode allows you to specifically select which devices tests and test parameters are run To begin testing 1 Select the Test tab 2 On the left side of the tab select the Type of Test to perform Quick Complete or Custom 3 On the left side of the tab se...

Page 29: ...e Clear Test Log button will clear the contents of the Test Log The Error Log displays the tests for devices that have failed during the diagnostic testing and includes the following columns of information The Description section describes the error that the diagnostic test found The Recommended Repair will give a recommended action that should be performed to resolve the failed hardware The Faile...

Page 30: ... the optical drive 2 3 7 Downloading the Latest Version of HP Insight Diagnostics 1 Go to www hp com 2 Click the Driver Downloads or Support Troubleshooting link 3 Click the Download driver and software radio button 4 Enter your product number for example dc7600 in the text box and press the Enter key 5 Select your product 6 Select your OS 7 Click the Diagnostics link 8 Select HP Insight Diagnosti...

Page 31: ...nbundling process the computer is ready to be used A customized software image may be deployed by Installing additional software applications after unbundling the preinstalled software image Using software deployment tools such as Altiris Deployment Solution to replace the preinstalled software with a customized software image Using a disk cloning process to copy the contents from one hard drive t...

Page 32: ...to start and set up your system using the software and configuration information located on a network server by initiating the Preboot Execution Environment PXE The Remote System Installation feature is usually used as a system setup and configuration tool and can be used for the following tasks Formatting a hard drive Deploying a software image on one or more new PCs Remotely updating the system ...

Page 33: ...s Microsoft Systems Management Server SMS Using SSM you can distribute customer created or third party updates that have been packaged in the SSM format SSM may be downloaded at no charge by visiting www hp com go ssm 3 3 2 HP Client Manager HP Client Manager developed with Altiris is available free for supported HP business desktop notebook and workstation models SSM is integrated into HP Client ...

Page 34: ... PCs Building upon the success of the personal systems group in 2001 the industry standard servers group introduced the ProLiant Essentials Rapid Deployment Pack an OEM version of Altiris Deployment Solution combined with HP s SmartStart Toolkit HP utilizes this solution for provisioning ProLiant servers including blade servers as well as Blade PCs a core component of HP s Consolidated Client Infr...

Page 35: ...ect Express allows recovery from data loss due to viruses newly installed software user error damaged hardware hardware upgrades hackers and lost or stolen computers It offers a choice between simple duplicates or comprehensive backups and an intuitive setup wizard to get you up and running in minutes Retrospect Express comes with Disaster Recovery built into the product for the best protection av...

Page 36: ...or review and retrieval To learn more about Subscriber s Choice and create a custom profile visit http www hp com go pcn 3 3 8 Retired Solutions The Desktop Management Task Force DMTF introduced the Desktop Management Interface DMI standard almost ten years ago Due to new standards adoption such as the Common Information Model CIM the DMTF has initiated end of life for DMI Given other advancements...

Page 37: ...ter productivity and lower total cost of ownership The computer must be powered on or turned on through Remote Wakeup to take advantage of Remote ROM Flash For more information on Remote ROM Flash refer to the HP Client Manager or System Software Manager at http h18000 www1 hp com im prodinfo html 3 4 2 HPQFlash The HPQFlash utility is used to locally update or restore the system BIOS on individua...

Page 38: ... 5 Turn the power on to restart the computer 3 4 4 Replicating the Setup In a managed networked environment HP Client Manager or System Software Manager SSM may be used to replicate a setup configuration to many systems For more information on HP Client Manger and SSM visit http www hp com go easydeploy Both procedures require a diskette drive or a supported USB flash media device such as an HP Dr...

Page 39: ...o create a bootable USB flash media device If Windows XP is not available to use to create a bootable diskette use the method for copying to a single computer instead see Copying to Single Computer 1 Create a bootable diskette or USB flash media device See Supported USB Flash Media Device or Unsupported USB Flash Media Device ÄCAUTION Not all computers can be booted from a USB flash media device I...

Page 40: ...hat is bootable from a USB flash media device ÄCAUTION Not all computers can be booted from a USB flash media device If the default boot order in the Computer Setup F10 Utility lists the USB device before the hard drive the computer can be booted from a USB flash media device Otherwise a bootable diskette must be used 1 Turn off the computer 2 Insert the USB flash media device into one of the comp...

Page 41: ...ette and reboot the computer The computer will boot to the USB flash media device as drive C The default boot order varies from computer to computer and it can be changed in the Computer Setup F10 Utility If you have used a DOS version from Windows 9x you may see a brief Windows logo screen If you do not want this screen add a zero length file named LOGO SYS to the root directory of the USB flash ...

Page 42: ...essing the Esc key 9 If the system did not automatically restart when exiting FDISK press Ctrl Alt Del to reboot to the DOS diskette 10 At the A prompt type FORMAT C S and press Enter Format will format the USB flash media device add the system files and ask for a Volume Label 11 Press Enter for no label or enter one if desired 12 Turn off the computer and unplug the power cord Open the computer a...

Page 43: ...for four seconds ÄCAUTION Do not use the power button to turn off the computer unless the system is not responding turning off the power without operating system interaction could cause damage to or loss of data on the hard drive 3 4 6 World Wide Web Site When making the transition to new or revised operating systems it is important to implement the support software designed for that operating sys...

Page 44: ...m management applications to deliver proactive notification of tampering with a computer s internal components HP Embedded Security for ProtectTools the Smart Cover Sensor and the Smart Cover Lock are available as options on some systems Use the following utilities to manage security settings on the HP computer Locally using the Computer Setup Utilities See the Computer Setup F10 Utility Guide on ...

Page 45: ...dels Device Security Enables disables serial ports parallel port front USB ports system audio internal speakers some models network controllers some models MultiBay devices some models SMBus controller some models SCSI controllers some models and Embedded security device some models Network Service Boot Enables disables the computer s ability to boot from an operating system installed on a network...

Page 46: ...eaches This selection is in effect only if the processor and operating system being used comprehend and utilize this feature Intel Virtualization Technology some models enable disable Changing this setting requires turning the computer off and then back on This selection is in effect only if the processor and operating system being used comprehend and utilize this feature Data Execution Prevention...

Page 47: ... Turn on or restart the computer If you are in Windows click Start Shut Down Restart 2 As soon as the computer is turned on press and hold the F10 key until you enter Computer Setup Press Enter to bypass the title screen if necessary If you do not press the F10 key at the appropriate time you must restart the computer and press and hold the F10 key again to access the utility If you are using a PS...

Page 48: ...he screen 4 Before exiting select File Save Changes and Exit Entering a Power On Password To enter a power on password complete the following steps 1 Turn on or restart the computer If you are in Windows click Start Shut Down Restart 2 When the key icon appears on the monitor type the current password then press Enter Type carefully for security reasons the characters you type do not appear on the...

Page 49: ...ther slash or alternate delimiter character and the new password again as shown current password new password new password Type carefully for security reasons the characters you type do not appear on the screen 4 Press Enter 5 The new password takes effect the next time you turn on the computer Refer to National Keyboard Delimiter Characters for information about the alternate delimiter characters...

Page 50: ...n hard drives that support the ATA Security command set are detected DriveLock is intended for HP customers for whom data security is the paramount concern For such customers the cost of the hard drive and the loss of the data stored on it is inconsequential when compared with the damage that could result from unauthorized access to its contents In order to balance this level of security with the ...

Page 51: ... will remain inaccessible DriveLock Applications The most practical use of the DriveLock security feature is in a corporate environment The system administrator would be responsible for configuring the hard drive which would involve among other things setting the DriveLock master password In the event that the user forgets the user password or the equipment is passed on to another employee the mas...

Page 52: ...r Removal Sensor and select the desired security level 4 Before exiting select File Save Changes and Exit Smart Cover Lock The Smart Cover Lock is a software controllable cover lock featured on some HP computers This lock prevents unauthorized access to the internal components Computers ship with the Smart Cover Lock in the unlocked position ÄCAUTION For maximum cover lock security be sure to esta...

Page 53: ... press and hold the F10 key until you enter Computer Setup Press Enter to bypass the title screen if necessary If you do not press the F10 key at the appropriate time you must restart the computer and press and hold the F10 key again to access the utility If you are using a PS 2 keyboard you may see a Keyboard Error message disregard it 3 Select Security Smart Cover Cover Lock Unlock 4 Before exit...

Page 54: ...a network managed by HP Client Manager the computer sends a fault notice to the network management application With HP Client Manager you can also remotely schedule diagnostics to automatically run on all managed PCs and create a summary report of failed tests 3 6 1 Drive Protection System The Drive Protection System DPS is a diagnostic tool built into the hard drives installed in some HP computer...

Page 55: ...rules a POST error message may be displayed Serial ATA Hard Drive Characteristics Number of pins conductors in data cable 7 7 Number of pins in power cable 15 Maximum data cable length 39 37 in 100 cm Data interface voltage differential 400 700 mV Drive voltages 3 3 V 5V 12 V Jumpers for configuring drive N A Data transfer rate 40 GB 1 5 Gb s 3 0 Gb s some models Data transfer rate 80 GB and great...

Page 56: ...le designed to transmit data for only a single drive As shown in the table each cable has 3 grounds and 4 transmit receive pins 4 2 2 SATA Power Cable Pin Number Usage Device Plug Host Plug P1 Ground Ground Ground P2 A Transmit data Receive data P3 A Transmit data Receive data P4 Ground Ground Ground P5 B Receive data Transmit data P6 B Receive data Transmit data P7 Ground Ground Ground P2 and P3 ...

Page 57: ...A MultiBay Hard Drive Characteristics Number of pins conductors in data cable 40 80 Number of pins in power cable 4 Maximum data cable length 18 in 45 7 cm Data interface voltage 5V Drive voltages 5V Jumpers for configuring drive Required Data transfer rate 24 MB s Pin Signal Pin Signal Pin Signal 1 2 3 4 5 Reset Ground DD7 DD8 DD6 15 16 17 18 19 DD1 DD14 DD0 DD15 Ground 29 30 31 32 33 DMAK Ground...

Page 58: ...ble select jumper is present the drive is designated as Device 1 For optimal performance of a computer system all drives need to be attached to the PATA channel s in a specified sequence This sequence is determined by the device class of the drives and by specific attach sequence rules 4 5 1 PATA Device Classes In order to determine the best drive attach sequence ATA ATAPI drives are segregated in...

Page 59: ...ulations by drive manufacturers are bytes to the base 10 while calculations by Microsoft are bytes to the base 2 4 8 SATA BIOS Drive Partition Capacity Limits Maximum Size File System Controller Type Operating System Partition Drive FAT 32 ATA Windows 2000 XP 32 GB 128 PB NTFS ATA Windows NT 2000 XP 2 TB 128 PB Windows 2000 and XP Windows 9x NT and Linux Enhanced Mode default BIOS Setting Separate...

Page 60: ...h Control block 376h IRQ 15 4 8 2 Native Mode The native mode is used to access devices attached to SATA controllers and is the default mode for all integrated SATA controllers It is not supported by many legacy operating systems Addresses are assigned by PCI Plug n Play BIOS and the IRQ is shared with multiple controllers Base Address Registers for the Command and Control Block are found in the P...

Page 61: ... A2 SATA 2 A3 SATA 1 A4 SATA 3 B1 IDE Device 0 B2 IDE Device 1 Separate IDE Controller Used with Windows 2000 and XP A Integrated IDE B Integrated SATA A1 IDE Device 0 A2 IDE Device 1 B1 SATA 0 B2 SATA 2 B3 SATA 1 B4 SATA 3 Combined with IDE Controller Used with Windows 9x NT and Linux A Integrated SATA B Integrated IDE A1 SATA 0 A2 SATA 2 B1 IDE Device 0 B2 IDE Device 1 Combined with IDE Controll...

Page 62: ...4 8 390812 001 Service Reference Guide dx7200 Serial and Parallel ATA Drive Guidelines and Features ...

Page 63: ...dherence to the procedures and precautions described in this chapter is essential for proper service Ä CAUTION When the computer is plugged into an AC power source voltage is always applied to the system board You must disconnect the power cord from the power source before opening the computer to prevent system board or component damage 5 1 Chassis Designations 5 1 1 Microtower MT ...

Page 64: ...5 2 390812 001 Service Reference Guide dx7200 Identifying the Chassis Routine Care and Disassembly Preparation 5 1 2 Slim Tower ST ...

Page 65: ...ircuitry design and structure determine the degree of sensitivity The following packaging and grounding precautions are necessary to prevent damage to electric components and accessories To avoid hand contact transport products in static safe containers such as tubes bags or boxes Protect all electrostatic parts and assemblies with conductive or approved containers or packaging Keep electrostatic ...

Page 66: ...surface and properly grounded tools and equipment Use static dissipative mats foot straps or air ionizers to give added protection Handle electrostatic sensitive components parts and assemblies by the case or PCB laminate Handle them only at static free work areas Turn off power and input signals before inserting and removing connectors or test equipment Use fixtures made of static safe materials ...

Page 67: ...nally clean the air vents on all vented sides of the computer Lint dust and other foreign matter can block the vents and limit the airflow Be sure to unplug the computer before cleaning the air vents Never operate the computer with the cover or side panel removed Do not stack computers on top of each other or place computers so near each other that they are subject to each other s re circulated or...

Page 68: ...eyboard Follow all safety precautions in Section 5 4 1 before cleaning the keyboard To clean the tops of the keys or the keyboard body follow the procedures described in Section 5 4 2 When cleaning debris from under the keys review all rules in Section 5 4 1 before following these procedures Ä CAUTION Use safety glasses equipped with side shields before attempting to clean debris from under the ke...

Page 69: ...5 4 2 5 5 Service Considerations Listed below are some of the considerations that you should keep in mind during the disassembly and assembly of the computer 5 5 1 Power Supply Fan The power supply fan is a variable speed fan based on the temperature in the power supply Ä CAUTION The cooling fan is always on when the computer is in the On mode The cooling fan is off when the computer is in Standby...

Page 70: ...aught or snagged by parts being removed or replaced Ä CAUTION When servicing this computer ensure that cables are placed in their proper location during the reassembly process Improper cable placement can damage the computer 5 5 5 Hard Drives Handle hard drives as delicate precision components avoiding all physical shock and vibration This applies to failed drives as well as replacement spares If ...

Page 71: ...replacement procedures Å WARNING This computer contains a lithium battery There is a risk of fire and chemical burn if the battery is handled improperly Do not disassemble crush puncture short external contacts dispose in water or fire or expose it to temperatures higher than 140ºF 60ºC Do not attempt to recharge the battery N Batteries battery packs and accumulators should not be disposed of toge...

Page 72: ...5 10 390812 001 Service Reference Guide dx7200 Identifying the Chassis Routine Care and Disassembly Preparation ...

Page 73: ...rating system 4 Remove any diskette or compact disc from the computer 5 Turn off the computer and any peripheral devices that are connected to it Ä CAUTION Turn off the computer before disconnecting any cables Ä CAUTION Regardless of the power on state voltage is always present on the system board as long as the system is plugged into an active AC outlet In some systems the cooling fan is on even ...

Page 74: ...edures Microtower MT Chassis 6 2 External Security Devices 6 2 1 Installing a Cable Lock The cable lock may be used to secure the computer access panel to the chassis and at the same time secure the computer to a fixed object Insert the cable lock in the location shown below ...

Page 75: ...al and Replacement Procedures Microtower MT Chassis 6 2 2 Installing a Padlock A padlock may be used by itself to secure the access panel to the computer chassis A padlock may also be used with a security cable to secure the computer to a fixed object I ...

Page 76: ...ter is turned off and that the power cord is disconnected from the electrical outlet 2 Loosen the captive thumbscrew 1 that secures the access panel to the computer chassis 3 Slide the access panel 2 back about 1 inch 2 5 cm then lift it off the unit You may want to lay the computer on its side to install internal parts Be sure the side with the access panel and pull grip is facing up To install t...

Page 77: ...on the upper tab on the left side of the bezel so that it releases from the chassis The bezel will rotate out slightly from left to right ÄCAUTION Do not over rotate or try to pull the bezel off at this point otherwise you may break the remaining hooks on the inside of the bezel 4 Press down on the upper right corner of the bezel to release the hook that secures the top of the bezel to the chassis...

Page 78: ...bezel 1 Position the chassis in the upright position 2 Insert the hooks on the right side of the bezel into the rectangular holes on the chassis 1 then rotate the bezel into place 2 so that the three tabs on the left side of the bezel and the single tab on the upper right corner of the bezel snap into the slots on the chassis ...

Page 79: ...re the computer for disassembly Section 6 1 2 Remove the access panel Section 6 3 3 Remove the front bezel Section 6 4 6 5 1 5 25 Drive Bezel Blank Press the two retaining tabs on the inside of the large bezel towards the outside of the bezel to release the bezel blank 1 At the same time pull the bezel blank in to remove it from the front bezel 2 To install a bezel blank reverse the removal proced...

Page 80: ...s the center of the drive bezel and push the bezel out to remove it from the front bezel To install a bezel or a bezel blank reverse the removal procedure 6 5 3 3 5 Drive Bezel Blank Press the two upper 1 or the two lower 2 tabs for the 3 5 drive bezel towards the center of the 3 5 drive bezel and push the bezel blank out to remove it from the front bezel To install a bezel blank reverse the remov...

Page 81: ...e flat ribbon cables come prefolded Never change the folds on these cables Do not bend any cable sharply A sharp bend can break the internal wires Never bend a SATA data cable tighter than a 30 mm 1 18 in radius Never crease a SATA data cable Do not rely on components like the drive cage power supply or computer cover to push cables down into the chassis Always position the cables to lay properly ...

Page 82: ...Doing so may damage the module 1 Prepare the computer for disassembly Section 6 1 2 Remove the access panel and rotate the computer so the system board is parallel to the table to make it easier to work on Section 6 3 ÅWARNING To reduce risk of personal injury from hot surfaces allow the internal system components to cool before touching 3 Open both latches of the memory module socket 1 and insert...

Page 83: ...repare the computer for disassembly Section 6 1 2 Remove the access panel and rotate the computer so the system board is parallel to the table to make it easier to work on Section 6 3 3 On the rear of the computer a sliding slot cover lock secures the expansion card brackets and expansion slot covers in place Remove the thumbscrew that holds the slot cover lock in place 1 and slide the slot cover ...

Page 84: ... expansion card in a vacant socket remove the appropriate expansion slot cover on the back of the chassis Pull the slot cover straight up from the socket then away from the inside of the chassis b If removing a standard PCI expansion card hold the card at each end and carefully rock it back and forth until the connectors pull free from the socket Pull the expansion card straight up from the socket...

Page 85: ...m the socket then away from the inside of the chassis to release it from the chassis frame Be sure not to scrape the card against the other components 5 If not replacing the old expansion card with a new expansion card install an expansion slot cover to close the open slot Insert the metal slot cover in the opened slot and slide the slot cover lock down to secure the slot cover in place ÄCAUTION A...

Page 86: ...n the system board 2 When installing an expansion card press firmly on the card so that the whole connector seats properly in the expansion card slot 7 If you are replacing an expansion card store the old card in the anti static packaging that contained the new card 8 While holding the expansion card bracket against the chassis slide the slot cover lock down toward the expansion card brackets and ...

Page 87: ...ive are backed up to an external storage device before removing the hard drive Failure to do so will result in data loss After replacing the primary hard drive you will need to run the Restore Plus CD to load the HP factory installed files 6 9 1 Drive Positions Drive Positions Item Description 1 Two 5 25 inch half height bays for optional drives 2 Two standard 3 5 inch one third height bays 1 44 M...

Page 88: ...ive 2 Prepare the computer for disassembly Section 6 1 3 Remove the access panel and rotate the computer so the system board is parallel to the table to make it easier to work on Section 6 3 4 Remove the front bezel Section 6 4 5 Disconnect the power and data cables from the back of the drive as shown in the following illustrations Disconnecting Optical Drive Cables Disconnecting Diskette Drive Ca...

Page 89: ... while others use right angle connectors Releasing the Drives 6 A latch drive bracket with release tabs secures the drives in the drive bay Lift the release tab on the latch drive bracket 1 for the drive you want to remove then slide the drive from its drive bay 2 7 Remove the four guide screws two on each side from the old drive You will need these screws to install a new drive ...

Page 90: ...Do not use excessive force when inserting a drive Avoid exposing a hard drive to liquids temperature extremes or products that have magnetic fields such as monitors or speakers 1 Install four guide screws two on each side into the new drive The screws help guide the drive into its proper position in the bay If this is a new installation guide screws are provided on the front of the chassis under t...

Page 91: ...ssis 3 Reconnect the power and data cables to the drive as shown in the following illustrations Refer to Chapter 4 Serial and Parallel ATA Drive Guidelines and Features for information on attaching the cabling to get optimum performance Connecting Optical Drive Cables Connecting Diskette Drive Cables ...

Page 92: ...n 6 4 5 Install the access panel Section 6 3 6 Turn on the computer If you replaced the primary hard drive the Restore Plus CD may be used to restore the operating system software drivers and or any software applications that were preinstalled on the computer Follow the instructions in the guide included with the Restore Plus CD When the restore process has completed reinstall any personal files t...

Page 93: ...he access panel and rotate the computer so the system board is parallel to the table to make it easier to work on Section 6 3 3 Disconnect the power cable that connects the chassis fan to the system board 1 4 Remove the four screws from the exterior rear of the chassis that secure the fan 2 5 Remove the fan from the chassis 3 To install the chassis fan reverse the removal procedure ...

Page 94: ...el and rotate the computer so the system board is parallel to the table to make it easier to work on Section 6 3 3 Disconnect three attaching cables from the system board the power switch LED cable the front USB cable and the front audio cable 4 Remove the two screws that secure the housing to the chassis 1 then pull the housing away from the chassis 2 To install the housing assembly reverse the r...

Page 95: ...te the computer so the system board is parallel to the table to make it easier to work on Section 6 3 3 Remove the front I O panel assembly Section 6 11 4 Remove the two screws that hold the USB and audio port assembly in place 1 5 Remove the I O device assembly from the I O panel by pushing it out of the housing 2 To install the I O devices reverse the removal procedures and then reinstall the ho...

Page 96: ... together 1 and push the switch assembly out of the front I O panel housing 2 5 Place the switch holder with the switch installed into the inside of the front I O panel housing and position the legs of the retaining clip into the clip slots Press firmly so that the clips will penetrate the slot openings and latch into place If one clip will not easily engage it may be necessary to use the end of a...

Page 97: ...removed in diagonally opposite pairs as in an X to even the downward forces on the processor This is especially important as the pins on the socket are very fragile and any damage to them may require replacing the system board 6 Lift the heatsink from atop the processor 2 and set it on its side to keep from contaminating the work area with thermal grease When reinstalling the heatsink make sure th...

Page 98: ... damage Once pins are damaged it may be necessary to replace the system board ÄCAUTION The heatsink must be installed within 24 hours of installing the processor to prevent damage to the processor s solder connections To install a new processor 1 Place the processor in its socket and close the retainer 2 Secure the locking lever If reusing the existing heatsink go to step 3 If using a new heatsink...

Page 99: ...system board tray with the four captive screws and attach the heatsink control cable to the system board ÄCAUTION Heatsink retaining screws should be tightened in diagonally opposite pairs as in an X to evenly seat the heatsink on the processor This is especially important as the pins on the socket are very fragile and any damage to them may require replacing the system board After installing a ne...

Page 100: ...er so the system board is parallel to the table to make it easier to work on Section 6 3 3 Move remove any components necessary to gain access to the speaker 4 Disconnect the speaker wire from the system board connector 5 Remove the two plastic push pins that secure the speaker to the chassis 6 Remove the speaker by lifting it up and out of the retaining clips To install the speaker reverse the re...

Page 101: ... damage to the equipment the power cord should be disconnected from the computer and or the AC outlet before opening the computer 1 Prepare the computer for disassembly Section 6 1 2 Remove the access panel and rotate the computer so the system board is parallel to the table to make it easier to work on Section 6 3 3 Disconnect all power cables from the mass storage devices and from the system boa...

Page 102: ...Procedures Microtower MT Chassis 5 Pull the power supply towards the front of the chassis while depressing the two sets of retaining clips 1 to allow the power supply to move far enough to lift it from the chassis 2 To install the power supply reverse the removal procedure ...

Page 103: ...sier to work on Section 6 3 3 Remove all PCI and PCI Express expansion boards Section 6 8 4 Disconnect all cables connected to the system board noting their location for reinstallation 5 Remove the 3 1 4 drives from the drive cage to make it easier to handle the system board 6 Remove the eight screws that secure the system board to the chassis 1 then slide the system board towards the front of the...

Page 104: ...roduct Ä CAUTION Before replacing the battery it is important to back up the computer CMOS settings When the battery is removed or replaced the CMOS settings will be cleared Refer to the Computer Setup F10 Utility Guide for information on backing up the CMOS settings N Batteries battery packs and accumulators should not be disposed of together with the general household waste In order to forward t...

Page 105: ...e the replacement battery into position positive side up 3 The battery holder automatically secures the battery in the proper position 4 Replace the computer access panel Section 6 3 5 Plug in the computer and turn on power to the computer 6 Reset the date and time your passwords and any special system setups using Computer Setup Refer to the Computer Setup F10 Utility Guide ...

Page 106: ...lift it out 1 2 To insert the new battery slide one edge of the replacement battery under the holder s lip with the positive side up 2 Push the other edge down until the clamp snaps over the other edge of the battery 3 Replace the computer cover or access panel Section 6 3 4 Plug in the computer and turn on power to the computer 5 Reset the date and time your passwords and any special system setup...

Page 107: ... clip 1 that holds the battery in place then remove the battery 2 2 Insert the new battery and position the clip back in place 3 Replace the computer access panel Section 6 3 4 Plug in the computer and turn on power 5 Reset the date and time your passwords and any special system setups using Computer Setup Refer to the Computer Setup F10 Utility Guide ...

Page 108: ...6 36 390812 001 Service Reference Guide dx7200 Removal and Replacement Procedures Microtower MT Chassis ...

Page 109: ...ations 3 Exit the operating system 4 Remove any diskette or compact disc from the computer 5 Turn off the computer and any peripheral devices that are connected to it Ä CAUTION Turn off the computer before disconnecting any cables Ä CAUTION Regardless of the power on state voltage is always present on the system board as long as the system is plugged into an active AC outlet In some systems the co...

Page 110: ...nce Guide dx7200 Removal and Replacement Procedures Slim Tower ST Chassis 8 Lift the computer off the stand 9 Lay the computer on its side with the computer cover facing up before removing the computer cover and installing hardware ...

Page 111: ...pare part number 166527 001 or 166527 002 Once the solenoid has been deactivated or removed the access panel can be removed The Smart Cover FailSafe Key will be needed in any of the following circumstances Power outage Startup failure Processor or power supply failure Lost password To open the computer cover with the Smart Cover Lock engaged 1 Prepare the computer for disassembly Section 7 1 2 Usi...

Page 112: ...wer ST Chassis To reattach the Smart Cover Lock 1 Install the Smart Cover Lock assembly on the inside of the rear panel with the metal arm 1 wrapped around the air vent grid on the back of the chassis 2 Use the supplied tamper resistant screw 2 to secure the Smart Cover Lock to the chassis ...

Page 113: ...ion 7 5 3 Remove the special security clip Section 7 4 1 from the top rear corner of the power supply cage 4 Raise the power supply to its full upright position 5 Disconnect the hood sensor cable from the system board 6 Slide the hood sensor switch mounted on the power supply towards the outside of the computer 1 and lower it through the slot 2 To install the hood sensor reverse the removal proced...

Page 114: ...Security Clip A special clip is required to secure the computer from intrusion This clip must be installed before installing the computer cover 7 4 2 Cable Lock The cable lock may be used to secure the computer cover to the chassis and at the same time secure the computer to a fixed object Insert the cable lock in the location shown below ...

Page 115: ...Removal and Replacement Procedures Slim Tower ST Chassis 7 4 3 Padlock A padlock may be used by itself to secure the computer cover to the computer chassis A padlock may also be used with a security cable to secure the computer to a fixed object I ...

Page 116: ...N Before removing the computer cover ensure that the computer is turned off and that the power cord is disconnected from the electrical outlet 1 Press the buttons on the left and right sides of the computer 1 2 Slide the computer cover towards the front of the computer until it stops 2 then lift it up and off the chassis To install the computer cover reverse the removal procedure ...

Page 117: ...ssembly Section 7 1 2 Remove the computer cover Section 7 5 3 Remove the drive bezel by pushing the top tab on the right side of the larger front bezel as shown 1 and rotating the drive bezel away from the larger front bezel 2 The drive bezel will vary depending on the computer configuration 4 Install a bezel or a bezel blank by pushing the bezel into place ...

Page 118: ...ervice Reference Guide dx7200 Removal and Replacement Procedures Slim Tower ST Chassis There are three drive bezel inserts that are available Item Description 1 Diskette drive bezel 2 Hard drive bezel 3 3 5 drive bezel ...

Page 119: ...hen folding a flat ribbon cable never fold to a sharp crease Sharp creases may damage the wires Some flat ribbon cables come prefolded Never change the folds on these cables Do not bend any cable sharply A sharp bend can break the internal wires Never bend a SATA data cable tighter than a 30 mm 1 18 in radius Never crease a SATA data cable Do not rely on components like the drive cage power supply...

Page 120: ...ion ÄCAUTION When handling a memory module be careful not to touch any of the contacts Doing so may damage the module 1 Prepare the computer for disassembly Section 7 1 2 Remove the computer cover Section 7 5 ÅWARNING To reduce risk of personal injury from hot surfaces allow the internal system components to cool before touching 3 Open both latches of the memory module socket 1 and insert the memo...

Page 121: ...ble the Smart Cover Sensor 7 9 Vertically Oriented Expansion Card 7 9 1 Expansion Card Retainer 1 Prepare the computer for disassembly Section 7 1 2 Remove the computer cover Section 7 5 3 Release the slot cover retention latch that secures the PCI slot covers by lifting the green tab on the latch and rotating the latch to the full open position 1 4 Remove the single screw that keeps the card reta...

Page 122: ...sassembly Section 7 1 2 Remove the computer cover Section 7 5 3 Identify the slot into which you want to insert the expansion card 4 Release the slot cover retention latch that secures the PCI slot covers by lifting the green tab on the latch and rotating the latch to the full open position 1 5 Remove the slot cover by sliding it up and out of the computer 2 ...

Page 123: ...installing an expansion card 7 Rotate the slot cover retention latch back in place to secure the expansion card When you install an expansion card make sure the metal bracket on the card slides into the slot on the back of the computer then press down firmly on the card so that the whole connector seats properly in the expansion card slot ÄCAUTION All expansion card slots on the rear of the comput...

Page 124: ...I Express expansion socket away from the card on x16 card socket only and carefully rock the card back and forth until the connectors pull free from the socket Pull the expansion card straight up from the socket then away from the inside of the chassis Be sure not to scrape the card against the other components 5 If you are not installing a new expansion card install an expansion slot cover to clo...

Page 125: ...data loss After replacing the primary hard drive you will need to run the Restore Plus CD to load the HP factory installed files 7 10 1 Drive Positions To verify the type and size of the storage device installed in the computer run Computer Setup Drive Positions Item Description 1 3 5 inch internal standard hard drive bay 2 3 5 inch drive bay 1 44 MB diskette drive shown 3 5 25 inch drive bay for ...

Page 126: ...R RW DVD ROM DVD R RW or CD RW DVD Combo drive 1 Remove any removable media such as a CD or DVD from the drive 2 Prepare the computer for disassembly Section 7 1 3 Remove the computer cover Section 7 5 4 Rotate the drive cage to its upright position by pulling on the green tabbed lip 5 Disconnect the power and data cables from the rear of the optical drive ...

Page 127: ...e 7 Press the green drive retainer latch and slide the drive forward and lift it from the drive cage To replace the drive reverse the removal procedure When replacing the drive transfer the four screws from the old drive to the new one The screws take the place of drive rails ÄCAUTION Use only 5 mm long screws as guide screws Longer screws can damage the internal components of the drive ...

Page 128: ...disassembly Section 7 1 3 Remove the computer cover Section 7 5 4 Remove the optical drive Section 7 10 2 5 Rotate the drive cage to its upright position by pulling on the green tabbed lip 6 Disconnect the signal and power cables from the drive The other end of the cables should remain connected to the system board Diskette drive is shown 7 Rotate the drive cage down to its normal position before ...

Page 129: ...roximately 6mm 1 4 inch 2 9 Lift the rear of the drive up so that the rear guide screws clear the top of the drive cage 1 As the drive rises it automatically slides forward until it is free from the drive cage 2 To replace the drive reverse the removal procedure making sure you rotate the rear of the drive down pivoting on the front screws When replacing the drive transfer the four metric screws f...

Page 130: ...down the operating system properly then turn off the computer Do not remove a hard drive while the computer is on or in standby mode Before handling a drive ensure that you are discharged of static electricity While handling a drive avoid touching the connector Refer to Section 5 2 Electrostatic Discharge Information for more information about preventing electrostatic damage Handle a drive careful...

Page 131: ...ce Guide dx7200 390812 001 7 23 Removal and Replacement Procedures Slim Tower ST Chassis 4 Remove the security clip that secures the backwall to the power supply 5 Rotate the power supply to its full upright position ...

Page 132: ...de the hard drive toward the front of the computer then lift it up and out of the bay 2 To install a hard drive reverse the above procedure The replacement hard drive kit includes several data cables Make sure to use the cable that is exactly the same as the factory installed cable If the system has only one SATA hard drive the data cable must be connected to the blue connector labeled P60 SATA 0 ...

Page 133: ...xtra 6 32 standard guide screws on the front of the chassis under the computer cover The 6 32 standard guide screws are silver and are used only for the hard drive If you replaced the primary hard drive insert the Restore Plus CD to restore the operating system software drivers and any software applications that were preinstalled on the computer Follow the instructions in the guide included with t...

Page 134: ...er ST Chassis 7 11 Fan Shroud 1 Prepare the computer for disassembly Section 7 1 2 Remove the computer cover Section 7 5 3 Lift up on the fan shroud to remove it from the computer When replacing the shroud make sure that it does not get caught on the wires from either the fan or the speaker ...

Page 135: ...er Section 7 5 3 Remove the fan shroud Section 7 11 4 Disconnect the chassis fan cable from the system board 5 Remove the four screws that secure the fan to the chassis then remove the fan from the chassis To install the chassis fan reverse the removal procedure Be sure to orient the air flow into the unit Refer to the air flow arrows on the side of the fan housing for proper air flow orientation ...

Page 136: ...puter cover Section 7 5 3 Remove the two screws that secure the front I O device to the chassis 1 4 Rotate the drive cage to its full upright position 5 Disconnect the front I O cable from the system board 6 Push the front I O device into the chassis 2 and snake the cable through the tunnel 3 to remove the device from the chassis To reinstall the front I O device reverse the removal procedure ...

Page 137: ...3 Disconnect the power switch LED cable from the system board 4 Squeeze the switch holder retaining clips together at the front of the chassis 1 and push the switch assembly out of the chassis 2 Push the two LEDs out of the chassis 3 5 If necessary the LED holders may also be removed by squeezing the clips and pushing them out of the front of the chassis To install the power switch and LEDs revers...

Page 138: ...nt as the pins on the socket are very fragile and any damage to them may require replacing the system board 6 Lift the heatsink from atop the processor and set it on its side to keep from contaminating the work area with thermal grease When reinstalling the heatsink make sure that its bottom has been cleaned with an alcohol wipe and fresh thermal grease has been applied to the top of the processor...

Page 139: ...d cause irreparable damage Once pins are damaged it may be necessary to replace the system board ÄCAUTION The heatsink must be installed within 24 hours of installing the processor to prevent damage to the processor s solder connections To install a new processor 1 Place the processor in its socket and close the retainer 2 Secure the locking lever If reusing the existing heatsink go to step 3 If u...

Page 140: ...system board tray with the four captive screws and attach the heatsink control cable to the system board ÄCAUTION Heatsink retaining screws should be tightened in diagonally opposite pairs as in an X to evenly seat the heatsink on the processor This is especially important as the pins on the socket are very fragile and any damage to them may require replacing the system board After installing a ne...

Page 141: ...ing the speaker 6 Disconnect the speaker wire from the system board 7 Remove the two screws that secure the speaker to the chassis 1 8 Rotate the top of the speaker back to clear the lip on the top of the chassis then lift the speaker up and out of the chassis 2 To install the speaker reverse the removal procedures ÄCAUTION Before reinstalling the heatsink you must clean the top of the processor a...

Page 142: ...computer and or the AC outlet before opening the computer 1 Prepare the computer for disassembly Section 7 1 2 Remove the computer cover Section 7 5 3 Remove the security clip 4 Rotate the drive cage upand disconnect the power cables from all of the drives 5 Disconnect the power cables from the system board 6 Release the power supply cable from the cable retaining clips on the bottom of the chassi...

Page 143: ...y to its full upright position 1 then lift the power supply straight up and out of the chassis 2 To install the power supply reverse the removal procedure ÄCAUTION When installing the power supply cables make sure they are properly positioned so they are not cut by the drive cage and are not pinched by the rotating power supply ...

Page 144: ...7 1 2 Remove the computer cover Section 7 5 3 Remove all PCI and PCI Express expansion boards Section 7 9 4 Remove the fan shroud from the chassis Section 7 10 5 Rotate the drive cage to its full upright position 6 Remove the security clip Section 7 4 1 and rotate the power supply to its full upright position 7 Disconnect the data and power cables from the system board ...

Page 145: ...moval and Replacement Procedures Slim Tower ST Chassis 8 Disconnect the serial port from the system board 9 Disconnect the balance of the cables from the system board 10 Remove the long mounting screw that secures the system board tray to the chassis ...

Page 146: ...ystem board is reinstalled in the chassis ÄCAUTION Before reinstalling the heatsink you must clean the top of the processor and the bottom of the heatsink with an alcohol pad supplied in the spares kit After the alcohol has evaporated apply thermal grease to the top of the processor from the syringe supplied in the spares kit When reinstalling the system board it is important to secure the system ...

Page 147: ...ed for this product Ä CAUTION Before replacing the battery it is important to back up the computer CMOS settings When the battery is removed or replaced the CMOS settings will be cleared Refer to the Computer Setup F10 Utility Guide for information on backing up the CMOS settings N Batteries battery packs and accumulators should not be disposed of together with the general household waste In order...

Page 148: ...2 Slide the replacement battery into position positive side up 3 The battery holder automatically secures the battery in the proper position 4 Replace the computer access panel 5 Plug in the computer and turn on power to the computer 6 Reset the date and time your passwords and any special system setups using Computer Setup Refer to the Computer Setup F10 Utility Guide ...

Page 149: ...y pops up lift it out 1 2 To insert the new battery slide one edge of the replacement battery under the holder s lip with the positive side up 2 Push the other edge down until the clamp snaps over the other edge of the battery 3 Replace the computer access panel 4 Plug in the computer and turn on power to the computer 5 Reset the date and time your passwords and any special system setups using Com...

Page 150: ...lip 1 that holds the battery in place then remove the battery 2 2 Insert the new battery and position the clip back in place 3 Replace the computer access panel 4 Plug in the computer and turn on power to the computer 5 Reset the date and time your passwords and any special system setups using Computer Setup Refer to the Computer Setup F10 Utility Guide ...

Page 151: ...workstation connectors Some of these connectors may not be used on the product being serviced Keyboard Connector and Icon Pin Signal 1 2 3 Data Unused Ground 4 5 6 5 VDC Clock Unused Mouse Connector and Icon Pin Signal 1 2 3 Data Unused Ground 4 5 6 5 VDC Clock Unused Ethernet BNC Connector and Icon Pin Signal 1 Center Data 2 Shield Ground ...

Page 152: ...eive Data Unused Unused Ethernet AUI Connector and Icon Pin Signal Pin Signal 1 2 3 4 Ground Negative AUI Differential Collision Positive AUI Differential Collision Negative AUI Differential Transmit 9 10 11 12 Positive AUI Differential Receive 12V Ground Ground 5 6 7 8 Positive AUI Differential Transmit Ground Ground Negative AUI Differential Receive 13 14 15 16 Unused Unused Unused Unused ...

Page 153: ...nowledge Busy Paper End 16 17 18 25 Initialize Printer Select IN Signal Ground Serial Interface Powered and Non Powered Connector and Icon Pin Signal 1 2 3 Carrier Detect 12V if powered Receive Data Transmit Data 4 5 6 Data Terminal Ready Signal Ground Data Set Ready 7 8 9 Request to Send Clear to Send Ring Indicator 5V if powered USB Connector and Icon Pin Signal 1 2 3 4 5 VDC Data Data Ground Mi...

Page 154: ...nector and Icon 1 8 miniphone Pin Signal 1 Tip Audio_Out_Left 2 Ring Audio_Out_Right 3 Shield Ground SCSI Low Voltage Differential Single Ended LVD SE Connector and Icon Pin Signal Pin Signal Pin Signal Pin Signal 1 16 17 18 19 Ground TERMPWR Reserved 40 41 42 D0 D1 D1 49 50 51 52 53 Ground TERMPW Reserved 60 61 62 MSG SEL C D 20 34 35 36 Ground D12 D13 43 44 45 D3 D4 D5 54 55 56 Ground ATN Ground...

Page 155: ... DB0 DB1 DB2 33 34 35 36 DB7 DBP Ground Ground 41 42 43 44 ATN Ground BSY ACK 49 50 REQ Input Output External Infrared Transceiver Connector and Icon Pin Signal Pin Signal Pin Signal 1 2 3 Transmit Receive Ground 4 5 6 5V Mode Not Used 7 8 Not Used Not Used Monitor Connector and Icon Pin Signal Pin Signal Pin Signal 1 2 3 Red Analog Green Analog Blue Analog 6 7 8 Ground Ground Ground 11 12 13 Not ...

Page 156: ...CSEL 39 40 DASP Ground MultiBay CD ROM Adapter Connector Pin Signal Pin Signal Pin Signal Pin Signal 1 2 3 4 5 RESDRV_ GROUND D07 D08 D06 18 19 20 21 22 D15 GROUND key DRQ GROUND 35 36 37 38 39 A0 A2 CS1FX CS3FX DASP 52 53 54 55 56 FP05 FP06 FP07 FP08 FP09 6 7 8 9 10 D09 D05 D10 D04 D11 23 24 25 26 27 IOW GROUND IOR GROUND IOCHDRY 40 41 42 43 44 GROUND 5VMLOG 5VMOT GROUND AUDIO_L 57 58 59 60 61 FP...

Page 157: ... 3 V 12 V GND PSON GND GND 19 20 21 22 23 24 GND open 5 V 5 V 5 V GND 24 12 13 1 24 Pin MicroFit Power Connector Pin Signal Pin Signal Pin Signal Pin Signal 1 2 3 4 5 6 5 Vaux GND 5 V 5 V PS_ON GND 7 8 9 10 11 12 PWRGD 3 3 V 3 3 V Tach GND Fan CMD 13 14 15 16 17 18 12 V 5 V Sense GND 5 V 5 V 3 3 V 19 20 21 22 23 24 GND 3 3 Sense 3 3 V 3 3 V GND 12 V 4 Pin Power for CPU Connector and Icon Pin Signa...

Page 158: ...2 GND 3 GND 4 12 V CPU 5 12 V CPU 6 12 V 6 4 SATA Data and Power Drive Connector Pin Signal Pin Signal Pin Signal Pin Signal S1 S5 Ground B S2 S6 A B S3 S7 A Ground S4 Ground P1 P5 P9 P13 V 3 3 Ground V 5 V 12 P2 P6 P10 P14 V 3 3 Ground Ground V 12 P3 P7 P11 P15 V 3 3 V 5 Reserved V 12 P4 P8 P12 Ground V 5 Ground S Data P Power ...

Page 159: ... GND PERp3 PERn3 31 32 33 34 35 GND RSVD RSVD GND PERp4 36 37 38 39 40 PERn4 GND GND PERp5 PERn5 41 42 43 44 45 GND GND PERp6 PERn6 GND 46 47 48 49 50 GND PERp7 PERn7 GND RSVD 51 52 53 54 55 GND PERp8 PERn8 GND GND 56 57 58 59 60 PERp9 PERn9 GND GND PERp10 61 62 63 64 65 PERn10 GND GND PERp11 PERn11 66 67 68 69 70 GND GND PERp12 PERn12 GND 71 72 73 74 75 GND PERp13 PERn13 GND GND 76 77 78 79 80 PE...

Page 160: ...2 GND PETp4 PETn4 GND 36 37 38 39 40 GND PETp5 PETn5 GND GND 41 42 43 44 45 PETp6 PRTn6 GND GND PETp7 46 47 48 49 50 PETn7 GND PRSNT2 GND PETp8 51 52 53 54 55 PETn8 GND GND PETp9 PETn9 56 57 58 59 60 GND GND PETp10 PETn10 GND 61 62 63 64 65 GND PETp11 PETn11 GND GND 66 67 68 69 70 PETp12 PETn12 GND GND PETp13 71 72 73 74 75 PETn13 GND GND PETp14 PETn14 76 77 78 79 80 GND GND PETp15 PETn15 GND 81 8...

Page 161: ... Data2 4 Shield T M D S Data4 13 14 15 16 T M D S Data3 5V Power Ground for 5V Hot Plug Detect 5 6 7 8 T M D S Data4 DDC Clock DDC Data No Connect 17 18 19 20 T M D S Data0 T M D S Data0 T M D S Data0 5 Shield T M D S Data5 9 10 11 12 T M D S Data1 T M D S Data1 T M D S Data1 3 Shield T M D S Data3 21 22 23 24 T M D S Data5 T M D S Data Shield T M D S Clock T M D S Clock ...

Page 162: ...A 12 390812 001 Service Reference Guide dx7200 Connector Pin Assignments ...

Page 163: ...be approved by an acceptable accredited agency responsible for evaluation in the country where the power cord set will be installed 2 The power cord set must have a minimum current capacity of 10A 7A Japan only and a nominal voltage rating of 125 or 250 volts AC as required by each country s power system 3 The diameter of the wire must be a minimum of 0 75 mm2 or 18AWG and the length of the cord m...

Page 164: ...pe HO5VV F 3 conductor 0 75mm2 conductor size Power cord set fittings appliance coupler and wall plug must bear the certification mark of the agency responsible for evaluation in the country where it will be used 2 The flexible cord must be Type SVT or equivalent No 18 AWG 3 conductor The wall plug must be a two pole grounding type with a NEMA 5 15P 15A 125V or NEMA 6 15P 15A 250V configuration 3 ...

Page 165: ...problem remains Clear CMOS If the message disappears there may be a problem with the expansion card Replace the system board 103 System Board Failure DMA or timers Clear CMOS Remove expansion boards Replace the system board 110 Out of Memory Space for Option ROMs Recently added PCI expansion card contains an option ROM too large to download during POST If a PCI expansion card was recently added re...

Page 166: ... proper placement of the CMOS jumper if applicable 164 Memory Size Error Memory amount has changed since the last boot memory added or removed Press the F1 key to save the memory changes Memory configuration is incorrect Run Computer Setup F10 Setup Make sure memory module s if any are installed properly If third party memory has been added test using HP only memory Verify proper memory module typ...

Page 167: ...zed Rearrange the DIMMS so that each channel has the same amount of memory 216 Memory Size Exceeds Maximum Supported Recently added memory module s exceeds the supported memory amount for the system If additional memory was recently added remove it to see if the problem remains Check product documentation for memory support information 219 ECC Memory Module Detected ECC Modules not supported on th...

Page 168: ...MOS Verify that the monitor is attached and turned on Replace the graphics card if applicable 510 Splash Screen image corrupted Splash Screen image has errors Reflash the system ROM with the latest BIOS image 511 CPU CPUA or CPUB Fan not detected Fan is not connected or may have malfunctioned Reseat fan cable Reseat the fan Replace the fan 512 Chassis rear chassis or front chassis fan not detected...

Page 169: ... connected Reconnect or replace hood locking mechanism Reseat or replace hood locking mechanism cable 917 Front Audio not Detected Front audio harness has been detached or unseated from the system board Reconnect or replace front audio harness 918 Front USB Not Connected Front USB harness has been detached or unseated from system board Reconnect or replace front USB harness 919 Front Panel MultiPo...

Page 170: ...d Onboard Devices 1720 SMART Hard Drive Detect Imminent Failure Hard drive is about to fail Some hard drives have a firmware patch that will fix an erroneous error message Determine if hard drive is giving correct error message Run the Drive Protection System test if applicable Apply firmware patch if applicable visit www hp com support Back up contents and replace hard drive 1785 MultiBay incorre...

Page 171: ...ce the system board 1801 Microcode Patch Error Processor not supported by ROM BIOS Upgrade BIOS to proper version Change the processor 1802 Processor Not Supported Recently installed processor may not be supported by the system board If processor was recently replaced restore the original processor to see if the problem remains Check product documentation for processor support information Invalid ...

Page 172: ...ck 2 Parity RAM failure Run Computer Setup and diagnostic utilities System will not boot without fan CPU fan not installed or disconnected in VSFF chassis Open hood press the power button and see if the processor fan spins If not spinning make sure the fan cable is plugged into the system board Ensure the heatsink is properly seated If the heatsink is properly installed and the fan connected but d...

Page 173: ...in Suspend to RAM mode some models only or normal Suspend mode None required Press any key or move the mouse to wake the computer Red Power LED flashes two times once every second followed by a two second pause 2 Processor thermal protection activated A fan may be blocked or not turning OR The heatsink fan assembly is not properly attached to the processor Ensure that the computer air vents are no...

Page 174: ...e video memory error Reseat DIMMs Power on the system Replace DIMMs one at a time to isolate the faulty module Replace third party memory with HP memory Replace the system board Red Power LED flashes six times once every second followed by a two second pause 6 Pre video graphics error For systems with a graphics card Reseat the graphics card Power on the system Replace the graphics card Replace th...

Page 175: ...ss and hold the power button for less than 4 seconds If the hard drive LED turns green then Check that the voltage selector located on the rear of the power supply is set to the appropriate voltage Proper voltage setting depends on your region Remove the expansion cards one at a time until the LED light on the system board turns on Replace the system board OR Press and hold the power button for le...

Page 176: ...C 12 390812 001 Service Reference Guide dx7200 POST Error Messages ...

Page 177: ...ngle monitor the monitor must be plugged into the monitor connector on the source selected as the primary VGA adapter During boot the other monitor connectors are disabled and if the monitor is connected into these ports the monitor will not function You can select which source will be the default VGA source in Computer F10 Setup Press and hold any key If the system beeps then the keyboard is oper...

Page 178: ...time under Control Panel 2 Replace the RTC battery Computer appears to pause periodically Network driver is loaded and no network connection is established Establish a network connection or use Computer Setup or Microsoft Windows Device Manager to disable the network controller Cursor will not move using the arrow keys on the keypad The Num Lock key may be on Press the Num Lock key The Num Lock ke...

Page 179: ...nknown Restart the computer Computer powered off automatically and the Power LED flashes Red two times once every second followed by a two second pause and the computer beeps two times Beeps continue for five iterations after which the LED flashes will continue until the problem is resolved Processor thermal protection activated A fan may be blocked or not turning OR The heatsink is not properly a...

Page 180: ...tem board turns on 3 Replace the system board OR Press and hold the power button for less than 4 seconds If the hard drive LED does not turn on green then 1 Check that the unit is plugged into a working AC outlet 2 Open hood and check that the power button harness is properly connected to the system board 3 Check that both power supply cables are properly connected to the system board 4 If the 5 V...

Page 181: ...ssor fan is not spinning make sure the fan s cable is plugged onto the system board header Ensure the fan is fully properly seated or installed 3 If the fan is pugged in and seated but not spinning replace the processor fan 4 Reseat processor heatsink and verify that the fan assembly is properly attached Power LED flashes Red four times once every second followed by a two second pause and the comp...

Page 182: ...s not seated properly Reseat the drive Diskette drive cannot write to a diskette Diskette is not formatted Format the diskette Diskette is write protected Use another diskette or remove the write protection Writing to the wrong drive Check the drive letter in the path statement Not enough space is left on the diskette Use another diskette Diskette write control is enabled Use Computer Setup to che...

Page 183: ...d to start the computer has been inserted in the drive When drive activity stops remove the diskette and press the Spacebar The computer should start up Diskette error has occurred Restart the computer by pressing the power button Cannot Boot to Diskette Diskette is not bootable Replace with a bootable diskette Diskette boot has been disabled in Computer Setup Run Computer Setup and enable diskett...

Page 184: ...zed a newly installed device 1 Check to see if the device is listed within Computer Setup If it is listed the probable cause is a driver problem If it is not listed the probable cause is a hardware problem 2 If this is a newly installed drive enter Setup and try adding a POST delay under Advanced Power On Drive s controller is disabled in Computer Setup Run Computer Setup and enable the SATA contr...

Page 185: ...not attached as first in a multi hard drive configuration If attempting to boot from a hard drive ensure it is attached to P60 SATA 0 Bootable hard drive s controller is not listed first in the Boot Order Enter Computer Setup and select Storage Boot Order and ensure the bootable hard drive s controller is listed immediately under the Hard Drive entry Computer will not start Hard drive is damaged O...

Page 186: ...connections are not correct Check the cable connections from the monitor to the computer and to the electrical outlet Bad monitor Try a different monitor Screen blanking utility installed or energy saver features enabled Press any key or click the mouse button and if set type your password System ROM is corrupted system is running in Boot Block Emergency Recovery Mode indicated by eight red blinks...

Page 187: ...isplay icon and select the Settings tab 4 Use the sliding control to reset the resolution Blank screen and the power LED flashes Red five times once every second followed by a two second pause and the computer beeps five times Beeps continue for five iterations after which the LED flashes will continue until the problem is resolved Pre video memory error 1 Reseat DIMMs Power on the system 2 Replac...

Page 188: ...connected Check that the graphics cable is securely connected to the graphics card and the monitor Blurry video or requested resolution cannot be set If the graphics controller was upgraded the correct video drivers may not be loaded Install the video drivers included in the upgrade kit Monitor is not capable of displaying requested resolution Change requested resolution Graphics card is bad Repla...

Page 189: ... clicking noise when turned on and off when going in and out of standby mode and when changing resolutions High pitched noise coming from inside a flat panel monitor Brightness and or contrast settings are too high Lower brightness and or contrast settings Fuzzy focus streaking ghosting or shadowing effects horizontal scrolling lines faint vertical bars or unable to center the picture on the scree...

Page 190: ...rect sound latency common in many media player applications In Windows XP 1 From the Control Panel select Sounds and Audio Devices 2 On the Audio tab select a device from the Sound Playback list 3 Click the Advanced button and select the Performance tab 4 Set the Hardware acceleration slider to None and the Sample rate conversion quality slider to Good and retest the audio 5 Set the Hardware accel...

Page 191: ...om the Control Panel program click Sound Speech and Audio Devices then click Sounds and Audio Devices 2 Click the Mute check box to remove the check mark from the box Computer is in standby mode Press the power button to resume from standby mode ÄCAUTION When attempting to resume from standby mode do not hold down the power button for more than four seconds Otherwise the computer will shut down an...

Page 192: ...ave failed Run printer self test Printer will not turn on The cables may not be connected properly Reconnect all cables Printer prints garbled information The correct printer driver is not installed Install the correct printer driver for the application The cables may not be connected properly Reconnect all cables Printer memory may be overloaded Reset the printer by turning it off for one minute ...

Page 193: ...slow Mouse connector is not properly plugged into the back of the computer 1 Shut down the computer using the keyboard 2 Plug the mouse connector into the back of the computer or the keyboard and restart the computer Program in use has stopped responding to commands Shut down the computer using the keyboard and then restart the computer Mouse may need cleaning Remove the roller ball cover on the m...

Page 194: ... that pins in the cable or connector are not bent down Power switch of new external device is not turned on Turn off the computer turn on the external device then turn on the computer to integrate the device with the computer system When the system advised you of changes to the configuration you did not accept them Reboot the computer and follow the instructions for accepting the changes A plug an...

Page 195: ...h the LED flashes will continue until the problem is resolved Video card is not seated properly or is bad or system board is bad For systems with a graphics card 1 Reseat the graphics card Power on the system 2 Replace the graphics card 3 Replace the system board For systems with integrated graphics replace the system board Power LED flashes Red ten times once every second followed by a two second...

Page 196: ... equipment for proper connection Network controller is not set up properly Use the Network control application to verify that the device is working properly Network controller is disabled 1 Run Computer Setup and enable network controller 2 Enable the network controller in the operating system via Device Manager Network driver is not properly loaded Reinstall network drivers System cannot autosens...

Page 197: ...talled is a network card NIC and conflicts with the embedded NIC Under the Computer Setup Advanced menu change the resource settings for the board Network controller stops working without apparent cause The files containing the network drivers are corrupted Reinstall the network drivers using the Restore Plus CD The cable is not securely connected Ensure that the cable is securely attached to the ...

Page 198: ...ation Check the application documentation to determine the memory requirements Memory count during POST is wrong The memory modules may not be installed correctly Check that the memory modules have been installed correctly and that proper modules are used Integrated graphics may use system memory No action required Insufficient memory error during operation Too many Terminate and Stay Resident pro...

Page 199: ...hat the processor is present 2 Reseat the processor Solving CD ROM and DVD Problems Problem Cause Solution System will not boot from CD ROM or DVD drive Removable Media Boot is not enabled through the Computer Setup utility Run the Computer Setup utility and enable booting to removable media and verify boot order settings Non bootable CD in drive Try a bootable CD in the drive Network Server Mode ...

Page 200: ...een inserted upside down Re insert the Media with the label facing up The DVD ROM drive takes longer to start because it has to determine the type of media played such as audio or video Wait at least 30 seconds to let the DVD ROM drive determine the type of media being played If the disc still does not start read the other solutions listed for this topic CD or DVD disc is dirty Clean CD or DVD wit...

Page 201: ...olving Front Panel Component Problems Problem Cause Solution A USB device headphone or microphone is not recognized by the computer It is not properly connected 1 Turn off the computer 2 Reconnect the device to the front of the computer and restart the computer The device does not have power If the USB device requires AC power be sure one end is connected to the device and one end is connected to ...

Page 202: ...the cable DSL modem Cable DSL service is not available or has been interrupted due to bad weather Try connecting to the Internet at a later time or contact your ISP If the cable DSL service is connected the cable LED light on the front of the cable DSL modem will be on The CAT5 UTP cable is disconnected Connect the CAT5 UTP cable between the cable modem and the computers s RJ 45 connector If the c...

Page 203: ...e click System 3 Click the Hardware tab 4 In the Device Manager area click the Device Manager button 5 Double click Ports COM LPT 6 Right click the COM port your modem uses then click Properties 7 Under Device status verify that the modem is working properly 8 Under Device usage verify the modem is enabled 9 If there are further problems click the Troubleshoot button and follow the on screen instr...

Page 204: ...D 28 390812 001 Service Reference Guide dx7200 Troubleshooting Without Diagnostics ...

Page 205: ...RJ45 jack Stacked RJ45 Dual USB Quad stacked USB First IEEE 1394 connector J12 J13 J14 J20 29 J30 Second IEEE 1394 connector SPDIF input SPDIF output PCI slots PCI extender slot male J31 J35 J37 J38 J39 J40 PCI Express slots Primary SCSI connector Secondary SCSI connector Stacked parallel SCSI connector AGP slot J41 J50 J51 J52 J53 x16 PCI Express slot for graphics First parallel port Second paral...

Page 206: ...connector daughter card PCI slots on riser card PCI express slots on riser card Clear password header jumper USB front port choke 1st L2 L3 L4 L5 P1 USB rear port choke 1st USB rear port choke 2nd USB rear port choke 3rd USB front port choke 2nd P S connector 20 or 24 pin P2 P3 P4 P5 P6 Second P S connector as required VCCP 12V header Secondary Processor 12V header Main Power HDD LED connector Spe...

Page 207: ...A SATA connector P67 P68 P69 P70 P71 Sixth Serial ATA SATA connector Seventh Serial ATA SATA connector Eighth Serial ATA SATA connector Primary CPU fan header for fansink Secondary CPU fan header for fansink P80 P81 P82 P83 P84 Primary Serial Attached SCSI SAS connector Second Serial Attached SCSI SAS connector Third Serial Attached SCSI SAS connector Fourth Serial Attached SCSI SAS connector Fift...

Page 208: ... controller USB front port power switch First USB rear port power switch Second USB rear port power switch U53 XBT XMM1 XMM2 XMM5 XU1 Third USB rear port power switch Battery retainer Memory slot DIMM1 or RIMM1 populated and tested Following memory slots Primary processor socket XU2 XU15 U15 XU19 U19 Y1 Y2 Secondary processor socket System ROM and Socket Socket XU15 ROM U15 SPI ROM and socket XU19...

Page 209: ... the DDR2 SDRAM DIMMs must be industry standard 240 pin unbuffered PC2 4200 533 MHz compliant or PC2 5300 667 MHz compliant 1 8volt DDR2 SDRAM DIMMs The DDR2 SDRAM DIMMs must also support CAS latency 4 CL 4 for PC2 4200 533 MHz or CAS latency 5 CL 5 for PC2 5300 667 MHz contain the mandatory JEDEC SPD information In addition the computer supports 256Mbit 512Mbit AND 1 Gbit non ECC memory technolog...

Page 210: ...l Asymmetric mode if the total memory capacity of the DIMMs in Channel A is not equal to the total memory capacity of the DIMMs in Channel B The system will operate in a higher performing dual channel Interleaved mode if the total memory capacity of the DIMMs in Channel A is equal to the total memory capacity of the DIMMs in Channel B However the technology and device width can vary between the ch...

Page 211: ...cable management MT 6 9 ST 7 11 cable pinouts PATA data 4 3 PATA power 4 4 SATA data 4 2 SATA power 4 2 cautions AC power 5 1 adding devices 1 1 cables 5 8 cooling fan 5 7 cover lock security 3 22 electrostatic discharge 5 3 FailSafe Key 3 23 keyboard cleaning 5 6 keyboard keys 5 6 operating system installation 1 1 protecting ROM 3 7 change notification 3 6 changing password 3 19 chassis MT illust...

Page 212: ...ipment 5 4 preventing damage 5 3 Ethernet AUI pin assignments A 2 BNC pin assignments A 1 RJ 45 pin assignments A 2 expansion card MT PCI Express socket removal and replacement 6 14 MT standard socket removal and replacement 6 13 ST PCI Express socket removal and replacement 7 17 ST standard socket removal and replacement 7 15 expansion card retainer MT removal and replacement 6 12 ST removal and ...

Page 213: ... 6 4 battery removal and replacement 6 33 cable lock 6 2 chassis fan removal and replacement 6 22 chassis illustrated 5 1 disassembly preparation 6 1 diskette drive bezel removal and replacement 6 8 diskette drive cable connecting 6 20 diskette drive cable disconnecting 6 17 drive positions 6 16 drive removal and replacement 6 17 expansion slot cover 6 13 external security 6 2 front bezel removal ...

Page 214: ...8 Power On Self Test POST 2 1 Preboot Execution Environment PXE 3 2 Proactive Change Notification PCN 3 6 problems solving audio D 14 CD ROM and DVD D 23 diskette D 6 display D 10 D 11 drive key D 25 front panel components D 25 hard drive D 8 hardware installation D 18 Internet access D 26 keyboard D 16 memory D 22 mouse D 16 MultiBay D 10 network D 20 optical drives D 23 power supply D 5 printer ...

Page 215: ... 7 setup software 1 2 Windows 1 1 setup password changing 3 19 deleting 3 19 entering 3 18 setting 3 17 Slim Tower See ST Smart Cover Lock locking 3 23 ST removal and replacement 7 3 unlocking 3 23 Smart Cover Sensor protection levels 3 22 setting 3 22 software Altiris Deployment Solution Agent 3 2 asset tracking 3 14 Boot Block Emergency Recovery Mode 3 7 Computer Setup Utilities 2 1 Dantz Retros...

Page 216: ... removal and replacement 7 30 preparation for disassembly 7 1 processor removal and replacement 7 32 Smart Cover Lock removal and replacement 7 3 speaker removal and replacement 7 34 system board removal and replacement 7 37 tamper proof screws 7 3 static electricity 5 3 Subscriber s Choice 3 6 system board MT removal and replacement 6 32 reference designators E 1 ST removal and replacement 7 37 T...

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