NEC Direction 233L Service Manual Download Page 89

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5-10 Disassembly and Reassembly

Power Supply Removal

Remove the power supply as follows.

Remove the system access cover as previously described.

Label and unplug the power cable attached to the system board.

Label and unplug the power cables from all installed devices.

At the back of the system unit, remove the two screws securing the power supply
to the system unit (see Figure 5-10).

Figure 5-10 Removing the Power Supply Screws

Pull the power supply out of the system unit.

Summary of Contents for Direction 233L

Page 1: ...ranted in accordance with the terms of the Warranty Statement accompanying each product However actual performance of each such product is dependent upon factors such as system configuration customer data and operator control Since implementation by customers of each product may vary the suitability of specific product configurations and applications must be determined by the customer and is not w...

Page 2: ... Clock Battery 1 8 DMA IRQ Settings 1 8 IDE Ports 1 9 I O Ports 1 9 Sound System 1 10 U S Robotics Modem Board Optional 1 10 Diskette Drive 1 10 Hard Disk Drive 1 11 Cd Rom Dvd Drive 1 11 Zip Drive 1 11 Power Supply 1 11 Power Management 1 11 Section 2 Setup Utility Configuration Information 2 1 When to Use Setup 2 1 How to Start Setup 2 2 How to Use Setup 2 3 Menu Bar 2 3 Legend Bar 2 4 Selecting...

Page 3: ... Drive Submenu 2 15 Removable Drive Submenu 2 16 Exit Menu 2 16 Section 3 Option Installation General Rules for Installing Options 3 1 Precautions 3 2 Removing the Access Cover 3 3 Replacing the Access Cover 3 4 Expansion Boards 3 5 Expansion Slot Locations 3 5 Expansion Board Installation 3 6 Expansion Board Removal 3 7 DIMM Upgrade 3 7 DIMM Removal 3 9 DIMM Installation 3 10 Video Upgrade 3 11 D...

Page 4: ...nce and Troubleshooting Maintenance 4 2 System Cleaning 4 2 Keyboard Cleaning 4 3 Mouse Cleaning 4 3 Troubleshooting 4 5 Diagnosing and Solving Problems 4 5 Beep Codes 4 11 CMOS Battery Replacement 4 11 Section 5 Disassembly and Reassembly Disassembly 5 2 System Access Cover 5 2 Expansion Board Removal 5 2 Front Panel Removal 5 3 Side Panel Removal 5 4 Device Cage Removal 5 4 Diskette Drive Remova...

Page 5: ...nector Pin Assignments B 12 PCI Expansion Bus Connector Pin Assignments B 14 Universal Serial Bus USB Connectors B 15 Appendix C System Resources IRQ Settings C 1 Viewing System Resources C 2 Setting the Jumper C 2 Clearing Your Password C 3 Recovering the BIOS C 4 Figures Figure 3 1 Releasing the Cover 3 4 Figure 3 2 Aligning the Tabs 3 4 Figure 3 3 Locating Expansion Slots 3 6 Figure 3 4 Removin...

Page 6: ...ting the Battery 4 12 Figure 5 1 Removing a Board 5 3 Figure 5 2 Releasing the Front Panel 5 3 Figure 5 3 Locating the Device Cage Screw 5 4 Figure 5 4 Locating the Two Diskette Drive Clips 5 5 Figure 5 5 Removing the 5 1 4 Inch Device Screws 5 6 Figure 5 6 The 3 1 2 Inch Device Bracket Screws 5 7 Figure 5 7 Removing the Securing Screw 5 7 Figure 5 8 Removing the Drive 5 8 Figure 5 9 Removing a DI...

Page 7: ...List 5 16 Table 5 4 Direction SPL and SP Series Desktop Field Replaceable Parts List 5 20 Table 5 5 Direction SPL and SP Series Minitower Field Replaceable Parts List 5 24 Table 5 6 Memory Options 5 28 Table 5 7 Direction Series Documentation 5 28 Table B 1 System Board Connectors B 1 Table B 2 System Board Internal Connectors B 3 Table B 3 System Board Connector Numbers and Types B 3 Table B 4 RS...

Page 8: ...Contents ix Table B 13 ISA Expansion Slot Pin Assignments B 12 Table B 14 PCI Expansion Pin Assignments B 14 Table B 15 USB Connectors B 15 Table C 1 System Board Jumper Settings C 3 ...

Page 9: ...x Contents ...

Page 10: ...tility program Section 3 Option Installation provides installation procedures for adding optional expansion boards diskette and hard disk storage devices system memory and processor updates Section 4 Maintenance and Troubleshooting includes recommended maintenance information lists possible computer problems and their solutions and has battery replacement procedures Section 5 Disassembly and Reass...

Page 11: ...erter DACK DMA acknowledge DC direct current DIP dual in line package DLAB Divisor Latch Address bit DMA direct memory access DMAC DMA controller DOS disk operating system DRAM dynamic RAM ECC error checking and correction EDO extended data output EGA Enhanced Graphics Adapter EPROM erasable and programmable ROM EVGA Enhanced Video Graphics Array F Fahrenheit FAX facsimile transmission FCC Federal...

Page 12: ...ital assistant PFP plastic flat package PIO parallel input output pixel picture element PLCC plastic leaded chip carrier PLL phase lock loop p p peak to peak PPI programmable peripheral interface PROM programmable ROM QFP quad flat pack RAM random access memory RAMDAC RAM digital to analog converter RAS row address strobe RGB red green blue RGBI red green blue intensity ROM read only memory rpm re...

Page 13: ...Abbreviations xv VFC VESA compliant feature connector VGA Video Graphics Array VRAM video RAM W watt W write ...

Page 14: ... with 32x CD ROM drive Direction SPL266 with 32x CD ROM drive Direction SPL300 with 32x CD ROM drive Direction SPL333 with 32x CD ROM drive This section provides an overview of the NEC Direction L Series SPL Series and SP Series computers These systems include the Intel Pentium II processor with MMX technology Table 1 1 describes the standard features of the L Series models Table 1 2 describes the...

Page 15: ...to 192 MB Secondary Cache 512 KB pipeline burst 512 KB pipeline burst 512 KB pipeline burst 512 KB pipeline burst Chipset Intel 440LX Intel 440LX Intel 440LX Intel 440LX Graphics AGP graphics board AGP graphics board AGP graphics board AGP graphics board Video Memory 4 MB SGRAM 4 MB WRAM 4 MB WRAM 4 MB WRAM Sound Sound Retrieval System Sound Retrieval System Sound Retrieval System Sound Retrieval ...

Page 16: ...2 MB to 192 MB Secondary Cache 512 KB pipeline burst 512 KB pipeline burst 512 KB pipeline burst 512 KB pipeline burst Chipset Intel 440LX Intel 440LX Intel 440LX Intel 440LX Graphics AGP graphics board AGP graphics board AGP graphics board AGP graphics board Video Memory 4 MB SGRAM 4 MB WRAM 4 MB WRAM 4 MB WRAM Sound Sound Retrieval System Sound Retrieval System Sound Retrieval System Sound Retri...

Page 17: ...ound Retrieval System Sound Retrieval System Sound Retrieval System Hard Disk 3 2 GB 9 GB 3 2 9 GB 3 2 9 GB 3 2 9 GB CD ROM Drive 32x 32x 32x 32x Power Supply 235 W 235 W 235 W 235 W SYSTEM BOARD The system board contains most of the components that provide system functions The following subsections provide a description of these components Processor Depending on the model the system board uses a ...

Page 18: ... and bus control The chipset includes the following chips Intel 82443LX PCI A G P PAC provides bus control signals address paths and data paths for transfers between the processor s host bus PCI bus Accelerated Graphics Port AGP and main memory Intel 82371AB PCI ISA IDE Xccelerator PIIX4 implements the PCI to ISA bridge PCI IDE functionality Universal Serial Bus USB host hub functions and enhanced...

Page 19: ...erator chip PIIX4 provides the logic that enables the ISA bus functions With 24 bit memory addressing a 16 bit data path and an eight MHz clock the ISA bus is designed to support all peripherals compatible with the IBM AT standard For PCI functions the Xcelerator chip provides 32 bit memory addressing 32 bit data path and a 33 MHz clock speed BIOS The BIOS Basic Input Output System is stored in th...

Page 20: ...inates complicated setup procedures for installing Plug and Play expansion boards To add a Plug and Play expansion board simply power off the system install the board and power on the system There are no jumpers to set and no system resource conflicts to resolve Plug and Play automatically configures the board for the system The system also supports non Plug and Play boards Plug and Play is contro...

Page 21: ... PCI boards with minimal user intervention Table 1 5 and Table 1 6 list system IRQ and DMA default settings Table 1 5 Interrupt Level Assignments IRQ System Resource NMI I O channel check 00 Reserved internal timer 01 Reserved keyboard buffer full 02 Reserved cascade interrupt from slave PIC 03 COM2 04 COM1 05 LPT2 Plug and Play option Audio User available 06 Diskette drive 07 LPT1 08 Real time cl...

Page 22: ...DE supports 2 MB to 3 MB per second on the ISA bus The standard hard disk and Zip drive in some systems are connected to the fast IDE port primary channel for high performance The CD ROM drive is attached to the standard IDE port secondary channel I O Ports The system board features an enhanced parallel port two buffered high speed serial ports and two Universal Serial Bus USB ports The enhanced p...

Page 23: ...ss decode ADPCM A law or µlaw digital audio compression decompression Full digital control of all mixer and volume control functions Sound Blaster and Windows Sound System compatibility The system board provides connectors for the optional OPL4 ML wavetable synthesizer The OPL4 ML integrates the OPL3 audio system general MIDI processor and wavetable ROM It provides FM synthesis and 24 distinct voi...

Page 24: ...and has a data transfer rate up to 1 4 MB per second POWER SUPPLY The 235 watt power supply is mounted inside the system unit It supplies power to the system board option boards diskette drives hard drives keyboard and mouse A fan inside the power supply provides system ventilation The power supply has several cables for attaching to the various devices requiring power POWER MANAGEMENT The Advance...

Page 25: ...battery supplies continuous power to CMOS memory and maintains configuration information when system power is off WHEN TO USE SETUP The Setup utility allows the user to view and set system parameters Use the Setup utility program to set the time and date to update or check system parameters when adding or removing expansion options to change or set power management features to correct a hardware d...

Page 26: ...art the Setup utility follow these steps 1 Turn on or reboot the system 2 Press F2 after POST begins but before the system boots up You have about five seconds to press F2 Setup s Main Menu window appears similar to the following screen NOTE The screen shown is typical of a system The actual settings on the Main Menu depend upon the hardware installed in the system ...

Page 27: ...ral Help window a window that appears any time during Setup after pressing F1 This help window provides general information about using Setup The following subsections describe how to use the Main Menu window to set system parameters Menu Bar The menu bar at the top of the Main Menu window lists these menus Main Use the Main menu for basic system configuration For example select Main to set the sy...

Page 28: ...arrow keys Selects next menu or arrow keys Moves cursor up and down for item selection Enter Executes a command or selects submenu Selecting a Menu Item To select a menu item use the up down arrow keys to move the cursor to the desired field Then press Enter The Exit Saving Changes command in the Exit Menu saves the values currently displayed in all the menus Displaying a Submenu To display a subm...

Page 29: ...ocessor Speed This field displays your processor s speed Cache RAM This field displays the size of your system s L2 external cache Total Memory This field displays the total amount of memory installed on your system board BIOS Version This field displays your system s BIOS version number Language This field displays the current default language used by the BIOS Depending on the system you purchase...

Page 30: ...ysical size of Diskette Drive A and B if included To change these highlight the field for the drive press Enter and select from the following options Disabled 360KB 5 25 inch 1 2MB 5 25 inch 720KB 3 5 inch 1 44 1 25 MB 3 5 inch default for Drive A 2 88 MB 3 5 inch If you add an optional 5 25 inch diskette drive to your system select Floppy B and change the parameter to 1 2 MB 5 25 inch Floppy Writ...

Page 31: ...heck or change the following hard disk drive parameters They are not available if Auto is selected Cylinders Heads Sectors fields Cylinders If your device configuration type is set to Auto this field displays the number of cylinders for your hard drive and cannot be changed If the Type is set to User you must enter the correct number of cylinders for your hard drive Heads If your device configurat...

Page 32: ...A causes Logical Block Addressing to be used in place of Cylinders Heads Sectors You can Enable default or Disable this option This option cannot be changed when Auto is selected WARNING Don t change the translation mode setting from the option selected when the hard drive was formatted Changing the option after formatting could result in corrupted data 32 Bit I O This option enables default or di...

Page 33: ... parameters are available by selecting submenus Use the arrow keys to move the cursor to a parameter and press Enter to select a submenu Items with lighter text are not available Plug Play O S This option lets you specify whether a Plug and Play compatible operating system is being used in your system Choose Yes default or No Reset Configuration Data This option clears the BIOS configuration data ...

Page 34: ...ices To do so highlight this field then press Enter Use the arrow cursor keys to highlight the specified IRQ then press Enter Select Available default or Reserved with the arrow keys then press Enter to change the setting WARNING An asterisk symbol appearing next to an option indicates that the selected IRQ is set to conflict with another device To return to the Advanced Menu press Esc twice Perip...

Page 35: ...ses the Setup program to assign LPT 1 378h IRQ7 NOTE If you select the Enabled option you can see additional options that allow you to specify the Base I O address and IRQs for the port you are configuring Mode Parallel Port This option sets the mode for the Parallel Port The options include Output Only AT compatible mode Bidirectional PS 2 compatible mode EPP Extended Parallel Port high speed bid...

Page 36: ...ress Enter The following options appear NumLock This option controls whether the NumLock key on the keyboard is on or off at boot up The choices are Auto default On or Off Key Click This feature enables or disables the key click option Select Enabled or Disabled default Keyboard Auto Repeat Rate This feature selects the key repeat rate the rate at which a key when pressed and held repeats itself T...

Page 37: ...d then press Enter The following options appear Event Log Capacity Event Log Validity These fields indicate whether space is available in the Event Log and whether the contents of the log are valid View DMI Event Log If there are no event logs stored you cannot access this log Clear All DMI Event Logs This option clears the DMI Event Log after rebooting the system Choose No default or Yes Event Lo...

Page 38: ...power management features When the power management option is enabled the following options appear in the Power Menu Power Management This feature lets you enable or disable BIOS power management Inactivity Timer The Inactivity Timer lets you set the length of time that the system needs to be inactive before entering its low power mode The low power mode powers down various devices in the system u...

Page 39: ...ult and Power On On PME This option controls how the system responds to a PCI power management event The options are Stay Off default and Power On First Second Third Fourth Boot Device You can select the sequence of boot devices by type Pressing your keyboard s plus or minus key allows you to select the order For maximum system accessibility Removable Device should always be set as the First Boot ...

Page 40: ...or keys to select the desired option then press Enter to make your choice or use the arrow key to select another one Exit Saving Changes This option exits the Setup program and saves your changes to the BIOS Exit Discarding Changes This option exits the Setup program without saving your changes to the BIOS Load Setup Defaults This option loads the Setup program s default values Load Custom Default...

Page 41: ... the cover are included in this section GENERAL RULES FOR INSTALLING OPTIONS Follow these general rules when installing system options Turn off system power and unplug the power cable Turn off and disconnect all peripherals When handling boards or chips touch the metal of the system unit to discharge static Do not disassemble parts other than those specified in the procedure Use a Phillips head sc...

Page 42: ...a board or chip in its anti static packaging until ready to install it Dissipate static electricity before handling any system components boards chips etc by touching a grounded metal object such as the system s unpainted metal chassis If possible use anti static devices such as wrist straps and floor mats Always hold a chip or board by its edges Avoid touching the components on the chip or board ...

Page 43: ...llation easier CAUTION Electrostatic discharge can damage computer components Discharge static electricity by touching a metal object before you remove the system access cover 3 If the system is a minitower lay the system down on its right side 4 Loosen the thumb screw at the rear of the system by turning it counterclockwise If you installed a lock on the back of the system unlock the lock and rem...

Page 44: ... the access cover use the following procedure 1 Gently set the access cover inside the edge of the case taking care not to bend the metal tabs 2 Align the tabs on the access cover with their corresponding slots on the system Insert the tabs on the edge of the access cover into their slots on the system Figure 3 2 Aligning the Tabs ...

Page 45: ...nsion boards Plug and Play allows the installation of a board in an expansion slot without changing the hardware settings There are no system resource conflicts to resolve Plug and Play automatically configures the board for the system Industry standard 8 bit and 16 bit ISA and 32 bit PCI expansion boards are supported in the system unit ISA expansion boards can be Plug and Play or non Plug and Pl...

Page 46: ...xpansion boards in the system as follows 1 Remove the access cover 2 Follow any preinstallation instructions that come with the expansion board such as setting switches or jumpers on the board 3 Remove the screw securing an expansion slot cover and remove the cover Figure 3 4 Removing the Slot Cover ...

Page 47: ...ss cover Expansion Board Removal 1 Remove the system access cover 2 Label and remove any cables connected to the board 3 Remove the screw that secures the board to the support bracket 4 Pull the board out of the connector Gently rock the board from side to side to release it from its connector 5 Replace the access cover DIMM UPGRADE Depending on the model your system comes factory installed with 3...

Page 48: ...M DIMM specification for either 64 bit or 72 bit SDRAM Use the following procedure to Check the memory installed in the system Determine the DIMM configuration needed to increase memory Identify DIMM sockets NOTE If any cables block access to the DIMM sockets label and disconnect them If any boards block access to the sockets remove them 1 Locate the three DIMM sockets J7J1 Bank 0 J6J2 Bank1 and J...

Page 49: ...x 64 64 MB 2 M x 64 16 MB 112 MB Empty 0 MB 16 M x 72 128 MB 16 M x 72 128 MB 256 MB ECC 16 M x 64 128 MB 2 M x 64 16 MB 8 M x 64 64 MB 210 MB 16 M x 64 128 MB 4 M x 64 32 MB 8 M x 64 64 MB 224 MB 16 M x 72 128 MB 8 M x 72 64 MB 1 M x 72 8 MB 200 MB ECC 16 M x 64 128 MB 16 M x 64 128 MB 16 M x 64 128 MB 384 MB 16 M x 72 128 MB 16 M x 72 128 MB 16 M x 72 128 MB 384 MB ECC DIMM Removal Use the follo...

Page 50: ...er 2 Locate the DIMM sockets 3 Remove any currently installed DIMMs that are not needed See DIMM Removal in this chapter CAUTION Before installing a DIMM reduce static discharge by touching the system s metal chassis 4 To install a DIMM align the module with an empty socket Make sure that the notches on the DIMM line up with the keys in the sockets 5 Insert the DIMM into the socket Close the plast...

Page 51: ...formation on upgrade capabilities DATA STORAGE DEVICES The system board in your computer supports the following storage devices two diskette drives including the standard 1 44 MB diskette drive and a tape backup unit up to four IDE drives Device Slots Your computer has seven storage device slots a 3 5 inch accessible device slot contains the standard 1 44 MB diskette drive two internal 3 5 inch ha...

Page 52: ...with the device For example check the following Diskette drive remove any termination jumpers on the optional diskette drive See the documentation that comes with the drive IDE device check the jumper settings on the device before installing it See the documentation that comes with the device for jumper setting information An IDE device such as an IDE hard disk or IDE CD ROM drive must be set corr...

Page 53: ...lude diskette drive signal cable IDE signal cables system power cables The addition of a diskette drive might require the replacement of the existing diskette drive cable The addition of an IDE device does not require the replacement of the existing IDE cable The existing IDE cables support two devices on each cable Cable connector locations are shown in Figure 3 8 Figure 3 8 System Board Cable Co...

Page 54: ...notched end on the drive connector Figure 3 9 shows a three connector diskette drive signal cable Figure 3 9 Diskette Drive Signal Cable IDE Signal Cables Each system comes with a three connector IDE interface cable attached to the primary IDE connector and the installed hard disk A second IDE cable connects to the CD ROM drive and to the secondary IDE connector In some systems a Zip drive also co...

Page 55: ... are attached to the standard storage devices System power cables vary in length and provide connector sizes to accommodate a variety of supported storage configurations Power cable connectors are keyed to fit only in the correct position Figure 3 11 shows the power cable connectors Figure 3 11 Power Cable Connectors ...

Page 56: ...connector to the connector on the IDE device Take care to prevent bending drive connector pins Align the IDE cable connector as shown in Figure 3 12 2 Locate an available power connector coming from the power supply 3 Connect the appropriate power cable to the power connector on the IDE device Figure 3 12 Connecting IDE Device Cables 4 If installing an IDE CD ROM drive also connect the audio cable...

Page 57: ...ce 1 Connect the diskette drive signal cable connector to the signal connector on the device see Figure 3 13 2 Locate an available power connector 3 Connect the power cable to the power connector on the device Figure 3 13 Connecting an Accessible 5 1 4 Inch Device ...

Page 58: ...se the following procedure to remove the front panel 1 Locate the two plastic tabs at the front of the chassis They are indicated by two arrows engraved on the chassis 2 Press down on the two tabs and press in a third tab at the end of the panel to release the panel see Figure 3 14 Figure 3 14 Releasing the Front Panel 3 Pull the panel away from the chassis Removing the CD ROM DVD Drive If you nee...

Page 59: ...nd lift it out of the unit Installing a 3 1 2 Inch Device Use the following procedure to install a 3 1 2 inch device 1 Follow the preinstallation instructions that came with the device such as setting jumpers and switches 2 Remove the access cover 3 Remove and label any cables that interfere with installing the device 4 Remove the front panel see the previous section 5 Choose the slot for the devi...

Page 60: ... Locating Device Slots If you are installing the device in the second 3 1 2 inch internal device slot Remove the two screws securing the 3 1 2 inch hard disk bracket to the front of the system unit Figure 3 17 Removing the Bracket Screws ...

Page 61: ...two screws inserted into the front of the system Slide the 3 1 2 inch hard disk bracket towards the back of the system unit until it is free of the molded plastic Align the two screw holes on the hard disk with the two tabs on the bracket Slide the hard disk onto the tabs Place the hard disk into the bracket and secure with the screw Slide the bracket into the molded plastic drive slot Secure the ...

Page 62: ...ing the device in an accessible slot go to step 6 6 To install a 3 1 2 inch device in an accessible slot Remove the plastic blank panel from the selected slot by pressing the panel tab inward and swinging the blank panel out see Figure 3 21 Figure 3 21 Removing the Blank Panel ...

Page 63: ...e any rails attached See the documentation that comes with the device 2 Remove the access cover 3 Remove the device cage see Removing the CD ROM DVD Drive 4 Remove and label any cables that interfere with installing the device 5 Remove the front panel 6 Remove the plastic blank panel If you are installing a hard drive keep the panel handy 7 Use a screw driver to remove the metal slot cover by care...

Page 64: ...eplace the plastic panel 13 Replace the front panel 14 Replace the access cover Replacing the Front Panel To replace the front panel follow this procedure 1 Align the front panel s six tabs with their corresponding slots on the system three of the tabs have holes the others have prongs 2 Press the front panel squarely into position until the tabs lock the panel in place 3 Replace the access cover ...

Page 65: ... other external devices see the instructions that come with the option Parallel Printer NOTE Before connecting a printer to the system be sure the printer is set up correctly Follow the setup instructions that come with the printer Connect a parallel printer to the system as follows 1 Turn off power to the system and printer 2 Connect the printer cable to the printer port on the rear of the system...

Page 66: ...3 26 Option Installation 5 Turn on the printer and the computer Figure 3 23 Locating the Parallel Port ...

Page 67: ...instructions that come with the option 1 Turn off power to the system and to the serial device 2 Connect one end of the serial cable to one of the COM ports on the rear of the computer see Figure 3 24 3 Secure the cable with the screws provided 4 Connect the other end to the serial device 5 Turn on the serial device and the computer Figure 3 24 Locating COM1and COM2 ...

Page 68: ...r Service about service and contract warranty issues Call 1 888 632 9128 To log onto the NEC CSD Electronic Bulletin Board System BBS to download software drivers and the latest BIOS for ROM flashing Call 1 978 635 4706 For information about NEC CSD products call FaxFlash SM use the automated service to have the latest Technical Information Bulletins sent to your fax machine 24 hours a day In the ...

Page 69: ...ing procedure for cleaning the system 1 Power off the system and unplug all power cables 2 Periodically wipe the outside of the system keyboard mouse and monitor with a soft clean cloth Remove stains with a mild detergent Do not use solvents or strong abrasive cleaners on any part of the system 3 Clean the monitor screen with a commercial monitor screen cleaning kit Or use a glass cleaner then wip...

Page 70: ...nd keys with a damp cloth A small soft bristle brush may be used to clean between the keys Do not wet or dampen the keyboard s printed circuit board PCB If the PCB accidentally gets wet thoroughly dry it before reattaching the keyboard to the system unit Mouse Cleaning Under normal conditions the mouse has a self cleaning mechanism that prevents a buildup of dust or lint around the mouse ball and ...

Page 71: ...er 4 Turn the mouse over and remove the ball 5 Clean the mouse as follows Clean the mouse ball with tap water and a mild detergent then dry it with a lint free cloth Remove any dust and lint from the mouse socket 6 Replace the mouse ball in its socket 7 Replace the ball cover and turn it counterclockwise until it locks in place ...

Page 72: ...om Solution No power Power lamp on computer status panel will not light 1 Check that the power cord is plugged into the AC connector on the computer Check that the other end of the cord is plugged into a live properly grounded AC power outlet 2 Check cable connections between the power supply and system board 3 Systematically eliminate possible shorted PCBs by removing cables and expansion boards ...

Page 73: ... parameters 2 Replace the CMOS battery if the date and time must be set each time the computer is powered on Computer halts during loading sequence 1 Power the computer off Check for proper jumper settings see appendices then power on the computer 2 Check condition of selected bootload device diskette or hard disk for bad boot track or incorrect OS files 3 Try booting OS from diskette or recopy OS...

Page 74: ...supply 4 Check hard disk cable and hard disk Replace as necessary 5 Replace system board or hard disk controller board if the system board controller is not used Memory malfunction Total memory not recognized 1 Reseat DIMMs 2 Systematically swap DIMMs 3 Check to see if the DIMM configuration is valid see Section 3 4 Replace DIMMs 5 Replace system board Modem board malfunction No output from board ...

Page 75: ...s the capabilities of the video controller and memory Wavy display 1 Check that the computer and monitor are not near motors or electric fields Blank display 1 Press any key or move the mouse to ensure power management has not blanked the display 2 Check that the monitor power switch is on 3 Check that the monitor cable is attached to the video connector at the back of the system 4 Check cable con...

Page 76: ...rd and power supply 3 Check the master slave jumper settings 4 Check the IDE cable Replace as necessary 5 Check the power supply Replace as necessary 6 Check the system board Replace as necessary No sound from CDs 1 Check that speaker power is on and volume is adjusted 2 Check audio software settings 3 Check the CD disc 4 Check the audio cable Replace as necessary 5 Replace the CD ROM DVD drive 6 ...

Page 77: ...r supply Replace as necessary 6 Check the system board Replace as necessary Communication error No or bad data when communicating 1 Check cable connections between system board and device 2 Check that the interface port is selected 3 Test or replace the device and interface cable see the device documentation for troubleshooting 4 Replace the system board ...

Page 78: ...beep before boot 1 2 Search for option ROMs 1 2 2 3 BIOS ROM checksum 1 3 1 1 Test DRAM refresh 1 3 1 3 Test 8742 keyboard controller 1 3 4 1 RAM failure on address line xxxx 1 3 4 3 RAM failure on data bits xxxx of low byte of memory bus 1 4 1 1 RAM failure on data bits xxxx of high byte of memory bus 2 1 2 3 Check ROM copyright notice 2 2 3 1 Test for unexpected interrupts CMOS Battery Replaceme...

Page 79: ... or improperly discarded Use only the same battery or an equivalent type recommended by the manufacturer when replacing the battery Lithium acts as a catalyst when exposed to water and causes spontaneous combustion on contact Discard used batteries according to the manufacturer s instructions 5 With the positive side facing up press the new battery into the socket 6 Replace the system access cover...

Page 80: ...follow the table and procedures in reverse order Individual removal procedures do not require the total disassembly of the computer Each of the following subsections lists the parts that must be removed before beginning the removal procedure Table 5 1 Disassembly Sequence Sequence Part See Page 1 System access cover 5 2 2 Expansion board s 5 2 3 Front panel 5 3 4 Side panel 5 4 5 Device cage 5 4 6...

Page 81: ...N When handling boards or chips ground yourself to release static DISASSEMBLY Use the following procedures to disassemble the system unit NOTE Unplug the power cord before disassembling the system unit Voltage is present inside the system unit even after the power is off All voltage is removed only when the power cord is unplugged System Access Cover To remove and replace the system access cover s...

Page 82: ...unit as follows 1 Locate the two plastic tabs at the front of the chassis They are indicated by two arrows engraved on the chassis 2 Press down on the two tabs and press in a third tab at the end of the panel to release the panel see Figure 5 2 Figure 5 2 Releasing the Front Panel 3 Pull the panel away from the chassis ...

Page 83: ...device cage from the system unit as follows 1 Label and disconnect any cables connected to devices in the device cage 2 Locate the screw on the front of the system between the 3 5 inch blank panel and diskette drive see Figure 5 3 Remove the screw Figure 5 3 Locating the Device Cage Screw 3 Slide the cage towards the front of the system and lift it out of the unit Diskette Drive Removal Remove the...

Page 84: ...ull the diskette drive out of the front of the system 5 1 4 Inch Device Removal Remove an optional 5 1 4 inch device from the system unit as follows 1 Remove the system access cover front panel and the device cage as previously described 2 Label and unplug the signal and power cables from the optional device in the 5 1 4 inch device cage Unplug the audio cable from an optional CD ROM drive ...

Page 85: ...ystem unit Optional 3 1 2 Inch Hard Disk Drive Removal Remove the optional 3 1 2 inch hard disk drive as follows 1 Remove the system access cover and front panel as previously described 2 Label and unplug the hard disk drive power and signal cables from the hard disk drive 3 Remove the two screws securing the 3 1 2 inch hard disk drive brackets to the front of the system unit see Figure 5 6 ...

Page 86: ...owards the back of the system unit until it is free of the molded plastic 5 Remove the screw on the side of the hard disk securing it to the bracket Figure 5 7 Removing the Securing Screw 6 Slowly pull the hard disk away from the bracket and lift the disk out of the two securing tabs on the opposite side of the bracket ...

Page 87: ...h hard disk drive in the molded plastic cage at the front of the system Remove the screws 4 Release the two plastic clips inside the plastic cage holding the drive in the plastic cage and slide the drive up and out of the cage Figure 5 8 Removing the Drive Fan Assembly Removal Remove the fan assembly per the following steps 1 Remove the system access cover per Section 3 2 At the rear of the system...

Page 88: ...oards as previously described 2 Press the locking clips at the ends of the socket away from the DIMM memory module see Figure 5 9 3 Gently rock the module while pulling it up from the socket Figure 5 9 Removing a DIMM When installing a DIMM module align the notches on the module with the keys in the memory socket insert the module and press in the plastic locking clips ...

Page 89: ...ribed 2 Label and unplug the power cable attached to the system board 3 Label and unplug the power cables from all installed devices 4 At the back of the system unit remove the two screws securing the power supply to the system unit see Figure 5 10 Figure 5 10 Removing the Power Supply Screws 5 Pull the power supply out of the system unit ...

Page 90: ...ide the system board towards the front of the unit until is is clear of the metal shielding and the alignment clips 5 Lift the board out of the system at an angle 6 If replacing the system board remove any installed DIMMs from the board Reinstall the DIMMs on the new board ILLUSTRATED PARTS BREAKDOWN This section contains the illustrated parts breakdown IPB and NEC CSD part numbers for the Directi...

Page 91: ...DE hard disk Quantum ST Ultra DMA 300668 01 6b 4 3 GB IDE hard disk Quantum ST Ultra DMA 215 00125 6c 7 GB IDE hard disk Maxtor 300800 6d 6 4 GB hard disk IBM Ultra DMA 300815 6e 8 4 GB IDE hard disk Maxtor 88400D8 UDMA 300819 01 6f 9 1 GB UDMA hard disk 300833 6g 3 5 x1 6 9 1 GB Seagate Ultra wide SCSI ST19171W 300689 6h 3 5 x1 6 9 1 GB Seagate Ultra wide SCSI ST19101 300690 6i 3 5 x1 4 35 GB Sea...

Page 92: ...58 050796 000 19b 3COM PCI 10 100 3C905TX ethernet board 158 052256 000A 20a 2940 Adaptec UW SCSI adapter board 158 052132 000A 20b 2930 Adaptec SCSI adapter board 030295 20c Intel pro 100 network adapter board 145479 21 Diskette drive signal cable 070114 22 IDE signal cable 233 00026 23 Cable audio internal dual MPC 070808 24 SCSI cable 233 00027 25 Microsoft Mouse 230 00025 26 Retention mechanis...

Page 93: ...4 not shown in figure 030401 SCSI cable wide not shown in figure 233 00045 CD Restore Pkg Windows 95 systems only not shown in figure 165326 08 Battery not shown in figure 158 060367 000 Monitor NEC 15 C550 not shown in figure 011001 Monitor NEC 17 C700 not shown in figure 011002 Cable CD ROM audio not shown in figure 070112 Microsoft SideWinder 3D joystick not shown in figure 160409 DirecPC PCI b...

Page 94: ... Direction L Series Desktop Illustrated Parts Breakdown ____________ This data was prepared June 1998 For an up to date listing of spare parts please call FaxFlashSM at 1 888 329 0088 or 1 978 635 6090 outside the U S and order document 42102018 ...

Page 95: ...OM PCI 10 100 3C905TX ethernet board 158 052256 000A 13a 2940 Adaptec UW SCSI adapter board 158 052132 000A 13b 2930 Adaptec SCSI adapter board 030295 13c Intel Pro 100 network adapter board 145479 14 System board 158 056690 000 15 I O shield 149763 16a 233 MHz Pentium II with active heatsink 158 056692 000 16b 266 MHz Pentium II with active heatsink 158 056693 000 16c 300 MHz Pentium II with acti...

Page 96: ...k Quantum ST Ultra DMA 300668 01 27b 4 3 GB IDE hard disk Quantum ST Ultra DMA 215 00125 27c 7 GB IDE hard disk Maxtor 300800 27d 6 4 GB hard disk IBM Ultra DMA 300815 27e 8 4 GB IDE hard disk Maxtor 88400D8 UDMA 300819 01 27f 9 1 GB hard disk UDMA 300833 27g 3 5 x1 6 9 1 GB Seagate Ultra wide SCSI ST19171W 300689 27h 3 5 x1 6 9 1 GB Seagate Ultra wide SCSI ST19101W 300690 27i 3 5 x1 4 35 GB Seaga...

Page 97: ...shown in figure 011002 Card sound wavetable OPL4 not shown in figure 030401 SCSI cable wide not shown in figure 233 00045 Cable CD ROM audio not shown in figure 070112 Microsoft SideWinder 3D joystick not shown in figure 160409 CD Restore Pkg Windows 95 systems only not shown in figure 165326 08 Battery not shown in figure 158 060367 000 DVD drive Hitachi not shown in figure 730124 DVD PCI board Q...

Page 98: ...Direction L Series Minitower Illustrated Parts Breakdown ____________ This data was prepared June 1998 For an up to date listing of spare parts please call FaxFlashSM at 1 888 329 0088 or 1 978 635 6090 outside the U S and order document 42102018 ...

Page 99: ... hard disk Maxtor 88400D8 UDMA 300819 01 6f 9 1 GB hard disk UDMA 300833 6g 3 5 x1 6 9 1 GB Seagate Ultra wide SCSI ST19171W 300689 6h 3 5 x1 6 9 1 GB Seagate Ultra wide SCSI ST19101 300690 6i 3 5 x1 4 35 GB Seagate Ultra wide SCSI ST34371W 300652 6j 3 5 x1 4 5 GB Seagate Ultra wide SCSI ST34501W 300691 7 3 5 inch diskette drive 219 00012 8 Microphone 232 00011 9 Speaker 158 056684 000 10 Left sid...

Page 100: ...58 052132 000A 20b 2930 Adaptec SCSI adapter board 030295 20c Intel pro 100 network adapter board 145479 21 Diskette drive signal cable 070114 22 IDE signal cable 233 00026 23 Cable audio internal dual MPC 070808 24 SCSI cable 233 00027 25 Microsoft Mouse 230 00025 26 Retention mechanism kit 301 00038 27a 233 MHz Pentium II with active heatsink 158 056692 000 27b 266 MHz Pentium II with active hea...

Page 101: ... shown in figure 233 00045 CD Restore Pkg Windows 95 systems only not shown in figure 165326 08 Battery not shown in figure 158 060367 000 Monitor NEC 15 C550 not shown in figure 011001 Monitor NEC 17 C700 not shown in figure 011002 Cable CD ROM audio not shown in figure 070112 Microsoft SideWinder 3D joystick not shown in figure 160409 DirecPC PCI board not shown in figure 149834 DVD drive Hitach...

Page 102: ...ction SPL and SP Series Desktop Illustrated Parts Breakdown ____________ This data was prepared June 1998 For an up to date listing of spare parts please call FaxFlashSM at 1 888 329 0088 or 1 978 635 6090 outside the U S and order document 42102018 ...

Page 103: ...rnet board 158 052256 000A 13a 2940 Adaptec UW SCSI adapter board 158 052132 000A 13b 2930 Adaptec SCSI adapter board 030295 13c Intel Pro 100 network adapter board 145479 14 System board 158 056690 000 15 I O shield 149763 16a 233 MHz Pentium II with active heatsink 158 056692 000 16b 266 MHz Pentium II with active heatsink 158 056693 000 16c 300 MHz Pentium II with active heatsink 158 056694 000...

Page 104: ...Ultra DMA 300668 01 27b 4 3 GB IDE hard disk Quantum ST Ultra DMA 215 00125 27c 7 GB IDE hard disk Maxtor 300800 27d 6 4 GB hard disk IBM Ultra DMA 300815 27e 8 4 GB IDE hard disk Maxtor 88400D8 UDMA 300819 01 27f 9 1 GB hard disk UDMA 300833 27g 3 5 x1 6 9 1 GB Seagate Ultra wide SCSI ST19171W 300689 27h 3 5 x1 6 9 1 GB Seagate Ultra wide SCSI ST19101W 300690 27i 3 5 x1 4 35 GB Seagate Ultra wide...

Page 105: ...t shown in figure 233 00045 CD Restore Pkg Windows 95 systems only not shown in figure 165326 08 Battery not shown in figure 158 060367 000 Monitor NEC 15 C550 not shown in figure 011001 Monitor NEC 17 C700 not shown in figure 011002 Cable CD ROM audio not shown in figure 070112 Microsoft SideWinder 3D joystick not shown in figure 160409 DVD drive Hitachi not shown in figure 730124 DVD PCI board Q...

Page 106: ...tion SPL and SP Series Minitower Illustrated Parts Breakdown ____________ This data was prepared June 1998 For an up to date listing of spare parts please call FaxFlashSM at 1 888 329 0088 or 1 978 635 6090 outside the U S and order document 42102018 ...

Page 107: ...ble 5 7 lists the Direction Series documentation Table 5 7 Direction Series Documentation Description Part Number Direction Series User s Guide 102018 01 Direction Series Service and Reference Manual 102018 SRV ____________ This data was prepared June 1998 For an up to date listing of spare parts please call FaxFlashSM at 1 888 329 0088 or 1 978 635 6090 outside the U S and order document 42102018...

Page 108: ...rocessor subsystem is inserted into slot 1 on the system board A 242 pin edge connector is implemented on the processor card for system board installation Each end of slot 1 has a Retention Mechanism Attach Mount RMAM inserted through the board RMAM is made of two studs connected with a bridge Retension Mechanism RM is inserted over slot 1 to act as an insertion guide and prevent movement of proce...

Page 109: ...4 or 8 Mbit by 72 64 MB DIMM 16 Mbit by 64 or 16 Mbit by 72 128 MB DIMM Read Only Memory ROM Flash ROM 2 Mbit Window RAM WRAM Standard video memory 4 MB video memory on the video board Calendar Clock Year Month Day Hour Minute Second 01 Second maintained by battery backup Battery Type Real Time Clock RTC battery Input Output I O Facilities Integrated Industry Standard Interfaces Parallel bidirecti...

Page 110: ...0 pin connectors support for mode 3 and mode 4 Diskette Drive supports two devices 1 2 MB and 1 44 MB drives 34 pin connector Expansion Slots I O Bus PCI ISA Six expansion slots One 8 16 bit ISA slot Three 32 bit PCI slots One shared ISA PCI slot One AGP slot Keyboard and Mouse Keyboard Windows 95 enhanced PS 2 compatible Function Keys 12 keys capable of up to 48 functions Status Lamps numeric loc...

Page 111: ...vailable four accessible device slots One accessible 5 25 inch device slot contains the standard CD ROM drive One accessible 5 25 inch device slot Two 3 5 inch device slots the lower 3 5 inch slot is not accessible on the desktop model Graphics Video Memory 4 MB Support for High Color at 1024 by 768 800 by 600 640 by 480 and True Color at 800 by 600 and 640 by 480 Graphics Support with 4 MB video ...

Page 112: ...ter volume control IMA compatible adaptive differential pulse code modulation ADPCM A Law and u Law compression decompression DMA Demand mode MPU 401 compatible MIDI interface Wave Blaster upgradeable for wavetable synthesis Built in 6 channel stereo mixer supports 3 channel analog input Software programmable ISA bus interface DMA Interrupt I O address Power down mode dual master clock input Sound...

Page 113: ...ghts are averages Weights depend upon the system configuration System Unit 27 5 lb 12 46 kg Keyboard 3 5 to 4 lb 1 6 to 1 8 kg Power Universal Power Supply 235 W Power Management Partial and full power reductions Sleep button Recommended Operating Environment Temperature 50 F to 95 F 10 C to 35 C Relative Humidity 20 to 80 ...

Page 114: ...Table B 2 and Table B 3 list each connector by its function number and type Figure B 1 shows the locations of the connectors and slots on the system board Figure B 2 shows the locations of the connectors on the back of the system unit Table B 1 System Board Connectors Connector s Page Number Power supply B 6 Diskette drive B 8 IDE B 9 DIMM Sockets B 10 Front panel B 7 ISA B 11 PCI B 13 AGP B Paral...

Page 115: ...B 2 Connector Pin Assignments Figure B 1 System Board Connectors and Slots Figure B 2 System Board External Connectors ...

Page 116: ...ber Type Parallel Interface 25 pin female sub D shell Serial Interface COM1 and COM2 9 pin D shell Mouse 6 pin PS 2 style connector Keyboard 6 pin PS 2 style connector Diskette Drive J8K1 2 x 17 pin male Power Supply Primary J7L1 2 x 10 pin locking header DIMM Memory Sockets J7J1 Bank 0 J6J2 Bank 1 J6J1 Bank 2 72 pin single inline connector IDE Interface primary J8H1 2 x 20 pin header IDE Interfac...

Page 117: ...tor are listed in Table B 4 Table B 4 RS 232C Serial Port Connector Pin Assignments Pin Signal Description 1 DCD Carrier detect 2 Serial In Receive data 3 Serial Out Transmit data 4 DTR Data terminal ready 5 Ground Signal ground 6 DSR Data set ready 7 RTS Request to send 8 CTS Clear to send 9 RI Ring indicator ...

Page 118: ...re listed in Table B 5 Table B 5 Parallel Port Connector Pin Assignments Pin Signal Pin Signal 1 Strobe 14 Auto feed 2 Data bit 0 15 Fault 3 Data bit 1 16 INIT Initialize 4 Data bit 2 17 SLCT IN Select in 5 Data bit 3 18 Ground 6 Data bit 4 19 Ground 7 Data bit 5 20 Ground 8 Data bit 6 21 Ground 9 Data bit 7 22 Ground 10 ACK Acknowledge 23 Ground 11 Busy 24 Ground 12 Error 25 Ground 13 Select ...

Page 119: ...ound 4 5 V 14 PS ON Power supply remote on off control 5 Ground 15 Ground 6 5 V 16 Ground 7 Ground 17 Ground 8 PWRGD Power Good 18 5 V 9 5 VSB Standby for real time clock 19 5 V 10 12 V 20 5 V KEYBOARD AND MOUSE CONNECTORS The keyboard and mouse use standard PS 2 connectors Pin assignments are given in Table B 7 Table B 7 Keyboard and Mouse Connector Pin Assignments Pin Keyboard Connector Mouse Co...

Page 120: ...or Pin Assignments Pin Signal Description 1 2 SW_ON Ground Power On 3 4 SLEEP SLEEP_PU pull up Sleep Resume 5 No connect none 6 7 8 9 10 11 5V Key IrRX Ground IrTX CONIR Consumer IR IrDA 12 No connect none 13 14 15 16 HD_PWR 5V Key HD Active HD_PWR HD LED 17 No connect Key none 18 19 20 Ground Key PWR_LED Sleep Power LED 21 No connect Key none 22 23 Ground SW_RST Reset 24 25 26 27 Ground Key PIEZO...

Page 121: ...rved 5 Key 6 FDEDIN 7 Ground 8 FDINDX Index 9 Ground 10 FDM00 Motor enable A 11 Ground 12 FDDS1 Drive select B 13 Ground 14 FDDS0 Drive select A 15 Ground 16 FDM01 Motor enable B 17 MSEN1 18 FDDIR Stepper motor direction 19 Ground 20 FDSTEP Step pulse 21 Ground 22 FDWD Write data 23 Ground 24 FDWE Write gate 25 Ground 26 FDTRK0 Track 0 27 MSEN0 28 FDWPD Write protect 29 Ground 30 FDRDATA Read data...

Page 122: ...ositively active signals are prefixed with a designation Table B 10 IDE PCI Connector Pin Assignments Pin Description Pin Description 1 Reset IDE 2 Ground 3 Host data 7 4 Host data 8 5 Host data 6 6 Host data 9 7 Host data 5 8 Host data 10 9 Host data 4 10 Host data 11 11 Host data 3 12 Host data 12 13 Host data 2 14 Host data 13 15 Host data 1 16 Host data 14 17 Host data 0 18 Host data 15 19 Gro...

Page 123: ... DQ43 141 DQ50 16 DQ12 58 DQ19 100 DQ44 142 DQ51 17 VDD 59 VDD 101 DQ45 143 VDD 18 VDD 60 DQ20 102 VDD 144 DQ52 19 DQ14 61 NC 103 DQ46 145 NC 20 DQ15 62 NC VREF 104 DQ47 146 NC VREF 21 CB0 63 CKE1 105 CB4 147 NC 22 CB1 64 VSS 106 CB5 148 VSS 23 VSS 65 DQ21 107 VSS 149 DQ53 24 NC 66 DQ22 108 NC 150 DQ54 25 NC 67 DQ23 109 NC 151 DQ55 26 VDD 68 VSS 110 VDD 152 VSS 27 WE 69 DQ24 111 CAS 153 DQ56 28 DQ...

Page 124: ...3 Ground B13 Ground A46 AGP_TRDY B46 AGP_DEVSEL A14 No connect B14 No connect A47 AGP_STOP B47 Vcc3 3 A15 SBA1 B15 SBA0 A48 No connect B48 AGP_PERR A16 Vcc3 3 B16 Vcc3 3 A49 Ground B49 Ground A17 SBA3 B17 SBA2 A50 AGP_PAR B50 AGP_SERR A18 Reserved B18 SB_STB A51 AGP_AD15 B51 AGP_CBE1 A19 Ground B19 Ground A52 Vcc3 3 B52 Vcc3 3 A20 SBA5 B20 SBA4 A53 AGP_AD13 B53 AGP_AD14 A21 SBA7 B21 SBA6 A54 AGP_A...

Page 125: ...t Output SD0 B9 Power 12V A10 Input IOCHRDY B10 Ground GND A11 Output AEN B11 Output SMEMW SMWTC A12 Input Output SA19 B12 Output SMEMR SMRDC A13 Input Output SA18 B13 Input Output IOW IOWC A14 Input Output SA17 B14 Input Output IOR IOWC A15 Input Output SA16 B15 Output DACK3 A16 Input Output SA15 B16 Input DRQ3 A17 Input Output SA14 B17 Output DACK1 A18 Input Output SA13 B18 Input DRQ1 A19 Input ...

Page 126: ... IRQ11 C5 Input Output LA20 D5 Input IRQ12 C6 Input Output LA19 D6 Input IRQ15 C7 Input Output LA18 D7 Input IRQ14 C8 Input Output LA17 D8 Output DACK0 C9 Input Output MEMR MRDC D9 Input DRQ0 C10 Input Output MEMW MWTC D10 Output DACK5 C11 Input Output SD8 D11 Input DRQ5 C12 Input Output SD9 D12 Output DACK6 C13 Input Output SD10 D13 Input DRQ6 C14 Input Output SD11 D14 Output DACK7 C15 Input Outp...

Page 127: ...PERR A10 5V I O B10 Reserved A41 SBO B41 3 3V A11 Reserved B11 PRSNT2 A42 Ground B42 SERR A12 Ground B12 Ground A43 PAR B43 3 3v A13 Ground B13 Ground A44 AD15 B44 C BE1 A14 Reserved B14 Reserved A45 3 3V B45 AD14 A15 RST B15 Ground A46 AD13 B46 Ground A16 5V I O B16 CLK A47 AD11 B47 AD12 A17 GNT B17 Ground A48 Ground B48 AD10 A18 Ground B18 REQ A49 AD09 B49 Ground A19 Reserved B19 5V I O A50 Key ...

Page 128: ...Assignments B 15 UNIVERSAL SERIAL BUS USB CONNECTORS Table B 15 lists the pin assignments and signal names for the USB connectors Table B 15 USB Connectors Pin Signal Name 1 Power 2 USBP0 USBP1 3 USBP0 USBP1 4 Ground ...

Page 129: ...system board IRQ SETTINGS The following settings are the default IRQ settings IRQ0 timer IRQ1 keyboard IRQ2 cascade interrupt IRQ3 COM2 IRQ4 COM1 IRQ5 LPT2 IRQ6 diskette drive IRQ7 LPT1 IRQ8 real time clock IRQ9 reserved IRQ10 user available IRQ11 Windows Sound System user available IRQ12 mouse IRQ13 coprocessor IRQ14 primary IDE IRQ15 secondary IDE ...

Page 130: ... right mouse button 2 Click Properties The System Properties box appears 3 Click the Device Manager tab 4 Double click Computer The Computer Properties box appears and displays the View Resources folder The View Resources folder shows the system resources used by your computer For example it shows a list of interrupts and how they are allocated If an interrupt is not in the list it is available SE...

Page 131: ...tings 2 Remove the access cover see Section 3 Removing the Access Cover 3 Locate the Configuration jumper J8B2 on the system board see Locating the Jumper in the previous subsection 4 You may have to remove any installed expansion boards to access the jumper see Section 3 Expansion Board Removal 5 Remove the jumper block from pins 1 2 and set it on pins 2 3 We recommend that you use needle nose pl...

Page 132: ...rn off the system before you change any jumper settings 2 Remove the access cover see Section 3 Removing the Access Cover 3 Locate the Configuration jumper J8B2 on the system board see Locating the Jumper in the previous subsection 4 You may have to remove any installed expansion boards to access the jumper see Section 3 Expansion Board Removal 5 Remove the jumper block from pins 1 2 We recommend ...

Page 133: ...If you removed any expansion boards replace them see Section 3 Expansion Board Installation 12 Replace the access cover Reconnect the system power cables and peripheral devices 13 Power on the system 14 Run Setup see Section 2 ...

Page 134: ... disk drive 5 6 5 1 4 inch device 5 5 device cage 5 4 DIMM module 5 9 diskette drive 5 4 expansion boards 5 2 fan assembly 5 8 front panel 5 3 power supply 5 10 side panel 5 4 standard 3 1 2 inch hard drive 5 8 system board 5 11 system unit 5 2 E Expansion board removal 3 7 Expansion board installation 3 5 External options 3 25 parallel printer 3 25 serial devices 3 27 F Front panel removal 3 18 F...

Page 135: ...air 5 1 disassembly 5 1 reassembly 5 1 S Setup 2 1 Setup and Operation 2 1 Setup utility legend bar 2 4 storage device installation 3 11 3 18 device cables 3 13 device preparation 3 12 device slots 3 11 A 4 System board 1 4 connectors B 1 removal 5 11 System cleaning 4 2 System configurations 1 1 System resources C 2 System specifications A 1 System unit disassembly 5 2 System unit disassembly 5 2...

Page 136: ...he interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment to an outlet on a circuit different from the one to which the receiver is connected Use a shielded and properly grounded I O cable to ensure compliance of this unit to the specified limits of the rules FCC Modem Connect...

Page 137: ... 5 If too many devices are attached they may not ring properly Modem Service Requirements If the modem malfunctions all repairs should be performed by NEC Computer Systems Division or an NEC CSD Authorized Service Center It is the responsibility of users requiring service to report the need for service to NEC Computer Systems Division or to an NEC CSD Authorized Service Center Service can be obtai...

Page 138: ... ground connections of the power utility telephone lines and internal metallic water pipe system if present are connected together This precaution may be particularly important in rural areas WARNING Users should not attempt to make such connections themselves but should contact the appropriate inspection authority or electrician The Load Number LN assigned to each terminal device denotes the perc...

Page 139: ...on landfilling or mixing of batteries with the municipal solid waste stream is prohibited by law in most areas Return batteries to a federal or state approved battery recycler This may be where you purchased the battery or a local seller of automotive batteries Contact your local waste management officials for other information regarding the environmentally sound collection recycling and disposal ...

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