Service
Maintenance
Manual
DECpc LPx/LPx+
PC
K-MN-SD00000 19-JG00.A
Copyright Digital Equipment CorporationAll rights reservedJanuary 1996
MCS LOGISTICS
ENGINEERING
-
NIJMEGEN
THE NETHERLANDS
Page 1: ...Service Maintenance Manual DECpc LPx LPx PC K MN SD00000 19 JG00 A Copyright Digital Equipment Corporation All rights reserved January 1996 MCS LOGISTICS ENGINEERING NIJMEGEN THE NETHERLANDS...
Page 2: ...lication or disclosure by the U S Government is subject to restrictions as set forth in subparagraph c 1 ii of the Rights in Technical Data and Computer Software clause at DFARS 252 227 7013 Copyright...
Page 3: ...ty 18 UPGRADE EXE DECpc LPx 560 566 18 Before Using UPGRADE EXE DECpc LPx 560 566 19 Creating a Recovery Diskette DECpc LPx 560 566 19 Upgrading the Computer s BIOS DECpc LPx 560 566 20 Helpful Hints...
Page 4: ...ES 52 Removing the 3 Inch Diskette Drive 52 Removing a 5 Inch Device 53 Removing a 3 Inch Mass Storage Device Internal Drive Bay 54 Removing the Fan Pipe 55 Removing the Fan Speaker Assembly 56 Removi...
Page 5: ...NG 83 Memory Map LPx LPx 83 Memory Map LPx 560 566 Full Range 84 Memory Map LPx 560 566 PC Compatibility Range 84 I O Address Map LPx LPx 85 CPU I O Address Map LPx 560 566 85 I O Address Map LPx 560...
Page 6: ...a 5 Inch Device 53 Figure 3 15 Removing a 3 Inch Mass Storage Device from the Internal Drive Bay 54 Figure 3 16 Removing the Fan Pipe 55 Figure 3 17 Removing the Fan Speaker Assembly 56 Figure 3 18 L...
Page 7: ...Logistics Engineering Nijmegen 7 Revision History Revision Date Description of Change A01 Januari 96 First release of the Service Maintenance Manual describing the DECpc LPx LPx series computer This...
Page 8: ...be serviced since many of the diagnostic tests are designed to test more than one product CAUTION Digital recommends that only A certified engineers attempt to repair this equipment All troubleshooti...
Page 9: ...puters are industry standard Intel i486 or Pentium microprocessor based PCs using a versatile full profile ISA style enclosure The computer features a modular CPU design that allows easy upgrades to t...
Page 10: ...L enhanced 486 or 486 at 25 MHz or 30 MHz Modular design with a choice of two VESA LB cards S3805 or S3864 Supports up to five storage devices Six full size 16 bit ISA expansion slots or five full siz...
Page 11: ...4MB None PC761 WB 1 44MB 240MB 8MB None DECpc LPx 433sx PC762 A9 None PC762 WA 1 44MB 170MB 4MB None PC762 WB 1 44MB 240MB 8MB None DECpc LPx 433dx PC763 A9 None PC763 WA 1 44MB 170MB 4MB None PC763 W...
Page 12: ...340MB 8MB None FR 803 WC 1 44MB 540MB 8MB None DECpc LPx 450d2 FR 804WW A9 None FR 804 WA 1 44MB 170MB 4MB None FR 804 WF 1 44MB 340MB 8MB None FR 804 WC 1 44MB 540MB 8MB None DECpc LPx 466d2 FR 806WW...
Page 13: ...n MS DOS executable version of the BIOS Setup utility EPP3SMC EXE allows to configure the printer to operate in EPP Enhanced Parallel Port mode DECpc LPx LPx KP EXE allows to set a keyboard and mouse...
Page 14: ...take effect Running SETUP EXE SETUP EXE allows to select and permanently store information about the computer s installed hardware and software in the battery backed memory of CMOS RAM This informatio...
Page 15: ...appear on the screen as you type them Each time you enter or change a keyboard and mouse password the characters also do not appear on the screen as you type them Copying KP EXE onto Hard Disk 1 Turn...
Page 16: ...th the hard disk or when there is a need to reconfigure the computer In addition the BIOS Setup utility should be used to modify the configuration after adding or removing hardware or changing compute...
Page 17: ...tems appear on the screen Make Recovery Diskette from Flash Make Recovery Diskette from Image File Upgrade Flash from Image File Save Flash to Image File Compare Flash to Image File BIOS Information E...
Page 18: ...f the System Utilities diskette and allow the computer to reboot without error If an error occurs a siren sounds while the computer attempts to boot signaling that the flash memory is corrupted If thi...
Page 19: ...setup process These screens provide information about highlighted options and in some cases offer suggestions on how to choose the correct field for a selected option To access these screens highligh...
Page 20: ...listed in the BIOS drive table Note This option allows to disable or configure the computer for the IDE hard disk drives that are installed There is the option of manually selecting drive types or usi...
Page 21: ...n use Parallel port Enabled at 378h 37Ah IRQ7 278h 27Ah IRQ7 3BCh 3BEh IRQ7 Disabled Bi directional mode Compatible mode Extended mode 2 EPP mode 1 ECP mode 1 Enables or disables any desired onboard p...
Page 22: ...Disabled Enables or disables the onboard IDE disk drive controller Disable this option when having a SCSI controller installed in one of the expansion slots HDD user definable types Types 2 and 3 Typ...
Page 23: ...the following When a second diskette drive has been installed you can choose which one to boot from using the Exchange Diskette Drives setup option Boot from hard disk C Enabled Disabled Enables or di...
Page 24: ...1MB E00000h 1MB E00000h 2MB C00000h 4MB Memory hole not available upper memory is contiguous Sets the memory hole at address F80000 with 5 MB memory available Sets the memory hole at address F00000 wi...
Page 25: ...n using optional software such as frame grabbers and or certain LAN network expansion boards it may be necessary to disable this DRAM range and force it to the ISA bus to avoid memory conflicts Refer...
Page 26: ...by 128 KB PCI device 2 Enable device Enabled Disabled Device IRQ None IRQ5 IRQ9 IRQ10 IRQ15 IRQ14 Enable master Enabled Disabled Latency timer Default Allows to individually enable or disable each PCI...
Page 27: ...This option allows to place the hard disk drive in suspend power saving mode When enabled and after approximately 20 minutes of hard disk drive inactivity the hard disk drives spindle and actuator mot...
Page 28: ...d Keep circuit boards and components away from non conductors Keep clothing away from circuit boards and components Keep circuit boards in anti static bags Be cautious when AC power is exposed when wo...
Page 29: ...Materials Cleaning agent should be an all purpose cleaner that is used in house Required Special Tools None Remedial Diagnostic Test Software QAPLUS fe PC Advanced Diagnostic Software latest version P...
Page 30: ...CO Information BIOS version information Refer to the Digital DECpc Bulletin Board Support for the latest information on BIOS upgrades Network locations North America South America Australia and New Ze...
Page 31: ...ver do the following 1 Turn off power to all external devices connected to computer 2 Turn computer off 3 Unplug power cord from wall outlet 4 Disconnect power cord and monitor cord from computer To r...
Page 32: ...gen 35 Computer Components Legend Description A Power supply B Six ISA expansion slots C Main logic board D 3 inch diskette drive E Front access drive bays F Internal drive bay G Two VESA compliant VL...
Page 33: ...rd slots Four of the slots support industry standard 16 bit ISA expansion boards The remaining three expansion slots support 32 bit PCI local bus expansion boards Expansion slots for LPx Models The ta...
Page 34: ...ow gives specific information about the expansion slots for the LPx computer Expansion Slot Slot Type Description J29 J32 ISA Supports industry standard 16 bit ISA J33 J34 ISA VL bus Supports industry...
Page 35: ...bit ISA expansion boards Designated as a shared slot with PCI slot J13 J11 PCI slot 1 PCI Supports non bus mastering 32 bit PCI expansion boards Digital recommends that you install the 32 bit PCI vide...
Page 36: ...or power 3 Unlock and remove outside cover 4 Unscrew and remove the metal filler plate for the desired expansion slot 5 Insert new expansion board into socket Push expansion board firmly into place 6...
Page 37: ...conductor shorting plug that slips over the pins To change a jumper setting remove the jumper from its current location Place the jumper over the two pins designated for the desired setting Press the...
Page 38: ...open Cache size select 0 KB 128 KB 256 KB J35 open J36 open J37 open J38 open J35 pins 1 and 2 jumpered J36 pins 1 and 2 jumpered J37 pins 1 and 2 jumpered J38 pins 1 and 2 jumpered J35 pins 2 and 3 j...
Page 39: ...Service Procedures Digital DECpc LPx LPx 42 MCS Logistics Engineering Nijmegen LPx Main Logic Board Jumper Locations Figure 3 7 LPx Main Logic Board Jumper Locations...
Page 40: ...he size select 0 KB 128 KB 256 KB J4 open J5 open J6 open J7 open J4 pins 1 and 2 jumpered J5 pins 1 and 2 jumpered J6 pins 1 and 2 jumpered J7 pins 1 and 2 jumpered J4 pins 2 and 3 jumpered J5 pins 2...
Page 41: ...Service Procedures Digital DECpc LPx LPx 44 MCS Logistics Engineering Nijmegen LPx Main Logic Board Jumper Locations Figure 3 8 LPx Main Logic Board Jumper Locations...
Page 42: ...ts all other CMOS settings back to the defaults Settings shown in bold italics are factory defaults Feature Description Setting Flash ROM upgrade Enable Disable J35 jumpered J35 open Recovery mode Nor...
Page 43: ...Service Procedures Digital DECpc LPx LPx 46 MCS Logistics Engineering Nijmegen LPx 560 566 Main Logic Board Jumper Locations Figure 3 9 LPx 560 566 Main Logic Board Jumper Locations...
Page 44: ...560 566 CPU Board Jumper Settings Feature Description Setting CPU clock input Default depends on the CPU installed at the factory 60 MHz 66 MHz J5 pins 2 and 3 jumpered J5 pins 1 and 2 jumpered LPx 56...
Page 45: ...ly those configurations listed below are allowed Supported SIMM sizes 4 MB 8 MB 16 MB 32 MB and 64 MB Fill banks 0 and 1 marked A on the illustration before banks 2 and 3 marked B on the illustration...
Page 46: ...Digital DECpc LPx LPx Service Procedures MCS Logistics Engineering Nijmegen 49 LPx and LPx SIMM Socket Locations Figure 3 11 LPx and LPx SIMM Socket Locations...
Page 47: ...MM size type and speed Supported SIMM sizes 4 MB 8 MB 16 MB and 32 MB Fill banks 0 and 1 marked A on the illustration before banks 2 and 3 marked B on the illustration Bank 0 Bank 1 Bank 2 Bank 3 Tota...
Page 48: ...Digital DECpc LPx LPx Service Procedures MCS Logistics Engineering Nijmegen 51 LPx 560 566 SIMM Socket Locations Figure 3 12 LPx 560 566 SIMM Socket Locations...
Page 49: ...r 2 Disconnect external devices ac power and monitor power 3 Unlock and remove outside cover 4 Disconnect power and ribbon cables 5 Loosen screw securing drive s mounting tray to chassis 6 Carefully s...
Page 50: ...an pipe must be removed prior to removing any 5 inch device 1 Turn off the computer 2 Disconnect external devices ac power and monitor power 3 Unlock and remove outside cover 4 Remove 3 inch diskette...
Page 51: ...Inch Mass Storage Device from the internal drive bay 1 Turn off the computer 2 Disconnect external devices ac power and monitor power 3 Unlock and remove outside cover 4 Disconnect power and ribbon ca...
Page 52: ...n Pipe To remove the Fan Pipe 1 Turn off the computer 2 Disconnect external devices ac power and monitor power 3 Unlock and remove outside cover 4 Remove the 3 Inch diskette drive 5 Remove CPU module...
Page 53: ...n Speaker Assembly 1 Turn off the computer 2 Disconnect external devices ac power and monitor power 3 Unlock and remove outside cover 4 Remove fan and speaker connections from main logic board 5 Press...
Page 54: ...Disconnect external devices ac power and monitor power 3 Unlock and remove outside cover 4 Remove all connectors 5 Remove CPU module retaining bracket and CPU module 6 Remove all expansion boards 7 Re...
Page 55: ...Service Procedures Digital DECpc LPx LPx 58 MCS Logistics Engineering Nijmegen LPx Main Logic Board Connections Figure 3 19 LPx Main Logic Board Connections...
Page 56: ...Digital DECpc LPx LPx Service Procedures MCS Logistics Engineering Nijmegen 59 LPx 560 566 Main Logic Board Connections Figure 3 20 LPx 560 566 Main Logic Board Connections...
Page 57: ...he computer s BIOS Do not wait to update the BIOS until after installing a new CPU module To remove the CPU module 1 Turn off the computer 2 Disconnect external devices ac power and monitor power 3 Un...
Page 58: ...ernal devices ac power and monitor power 3 Unlock and remove outside cover 4 Remove screw securing power on off cable from chassis 5 Pull off Power On Off button from switch at front panel 6 Remove tw...
Page 59: ...off the computer 2 Disconnect external devices ac power and monitor power 3 Unlock and remove outside cover 4 Carefully place screwdriver through hole provided at side of front access drive bay and r...
Page 60: ...Tag Sockets 0 to 128 KB E39 through E42 E63 through E65 0 to 256 KB E39 through E42 E52 through E55 E63 through E65 128 to 256 KB E52 through E55 LPx Cache chip locations Cache Upgrade Main Logic Boa...
Page 61: ...Service Procedures Digital DECpc LPx LPx 64 MCS Logistics Engineering Nijmegen Figure 3 24 Installing External Cache Memory...
Page 62: ...align the chip with the outside row of pins visible To install a higher performance CPU 1 Turn off the computer 2 Disconnect external devices ac power and monitor power 3 Unlock and remove outside cov...
Page 63: ...of the CPU module did not have a voltage regulator card 66 MHz version as shown or jumper card 60 MHz version To install a higher performance CPU 1 Remove the CPU module 2 Lift up on the lever to rel...
Page 64: ...r operation To replace the computer battery real time clock 1 Record computer configuration settings 2 Turn off the computer 3 Disconnect external devices ac power and monitor power 4 Unlock and remov...
Page 65: ...the computer 3 Disconnect external devices ac power and monitor power 4 Unlock and remove outside cover 5 Remove battery 6 Install new battery Toshiba CR2032 or equivalent 7 Replace and lock outside...
Page 66: ...To replace the computer battery real time clock 1 Record computer configuration settings 2 Turn off the computer 3 Disconnect external devices ac power and monitor power 4 Unlock and remove outside c...
Page 67: ...nd restore power NOTE Make sure the cable is connected with correct orientation Most cables and sockets are keyed so they cannot be connected backwards If the cable or device is not keyed connect pin...
Page 68: ...eering Nijmegen 71 Diskette IDE Connections Legend Diskette Drive Component A Power supply B Power connections C Diskette drive connection D IDE drive connection E Diskette drive F Hard disk drive G O...
Page 69: ...evice as shown 2 Connect appropriate power cable to device 3 Replace and lock outside cover 4 Connect external devices and restore power 5 Run BIOS Setup utility to configure computer SCSI Connections...
Page 70: ...oting Follow these general procedures to troubleshoot the DECpc LPx LPx computer Press Ctrl Alt Del If the computer fails to boot turn it off wait until all hard disk drives spin down completely and t...
Page 71: ...ge register write read failure 1 3 1 RAM refresh failure 1 3 3 1st 64 KB RAM chip or data line failure 1 3 4 1st 64 KB RAM odd even logic failure 1 4 1 1st 64 KB RAM address line failure 1 4 2 1st 64...
Page 72: ...Screen retrace failure POST and Boot Messages The POST displays messages to alert to errors in hardware software and firmware or to provide operating information about the computer Each time the POST...
Page 73: ...se 640 KB base memory 0 KB extended memory Time of day clock stopped Replace RTC Invalid configuration information Run the BIOS Setup utility Diskette drive failure Run the BIOS Setup utility Check al...
Page 74: ...e IDE hard disk drive IDE hard disk drive is not correctly formatted or the requested partition does not exist There is no software on the requested partition IDE hard disk drive jumpers incorrectly s...
Page 75: ...set Hard Disk 1 Hard Disk 2 to Not Installed and IDE Hard Disk Drives options to Disabled This disables the onboard IDE interface Note When both IDE and SCSI hard disk drives are installed the compute...
Page 76: ...d Power down the computer and connect the keyboard to the keyboard port Disk Drive Troubleshooting Problem Possible Cause Action IDE SCSI hard disk drive cannot read or write information Incorrect dis...
Page 77: ...r documentation Distorted rolling or flickering screen display or wrong uneven color Monitor incorrectly adjusted Monitor signal cable incorrectly installed Adjust accordingly Straighten any bent conn...
Page 78: ...Setup Check connections Reset controller Replace controller Replace disk Floppy diskette Media Mismatch Drive Not Ready Write Protected Media Unformatted Media Use known good diskette Check size and...
Page 79: ...e a specific memory location If that location is already allocated a memory conflict results and the expansion board will not operate as expected Note that some memory I O and interrupt locations can...
Page 80: ...e 16MB to 128MB main memory Pentium upper limit 128MB to 4GB PCI memory Memory Map LPx 560 566 PC Compatibility Range Address Range Function Size 0000 to 7FFFF Main memory 512 KB 80000 to 9FFFF Main P...
Page 81: ...0C0 0CF DMA controller two 0F0 Clear math coprocessor busy 0F1 Reset math coprocessor 0F8 0FF Math coprocessor 1F0 1F7 IDE controller 278 27A LPT2 2E8 2EF COM4 2F8 2FF COM2 378 37A LPT1 3BC 3BE LPT3 3...
Page 82: ...Address Map LPx 560 566 Range hexadecimal Function C0xx CPU bridge C1xx Onboard PCI SCSI if applicable C2xx ISA bridge C6xx PCI slot 1 C7xx PCI slot 2 C8xx PCI slot 3 Computer Interrupt Levels LPx LPx...
Page 83: ...COM2 if enabled IRQ4 COM1 if enabled IRQ6 Diskette drive if enabled IRQ7 LPT1 LPT2 LPT3 if enabled IRQ12 Mouse interrupt IRQ13 Math co processor IRQ14 Hard disk drive if enabled DMA Channel Assignment...
Page 84: ...and Sequential write random read destructive test Floppy Disk all tests Keyboard all tests COM Ports all tests LPT Ports all tests Pointer Device all tests 3 Successful bootstrap of the on the compute...
Page 85: ...Digital DECpc LPx LPx Service Notes MCS Logistics Engineering Nijmegen 91 Appendix A Service Notes This appendix contains the service notes for the DECpc LPx LPx series computer...
Page 86: ...G DECpc LPx LPx Installation Card Spanish ER 800WW IS DECpc LPx LPx Installation Card Dutch ER 800WW IH DECpc LPx LPx User s Guide English ER 800WW UA DECpc LPx LPx User s Guide French ER 800WW UP DEC...
Page 87: ...etup diskettes and technical tips can be found on all of these bulletin boards DECpc Bulletin Board Server DECpc BBS provides an easy to use menu driven bulletin board providing on line access to the...
Page 88: ...t to make this document a valuable support to your service efforts for Digital Please fill out the reader feedback form and send or fax it to Digital Equipment Parts Center b v Att MCS Logistics Engin...
Page 89: ...orm are used at Digital s direction Did you find errors in this manual If so specify by page What is your general reaction to this manual format completeness organisation etc Is the documentation unde...
