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Содержание PC 240

Страница 1: ...considered Company Proprietary and its use is restricted solely to assisting you in servicing Wang products Neither this document nor its contents may be disclosed copied revealed or used in whole or...

Страница 2: ...e PC 240 computer in the field First Edition November 1988 This is the first edition of the PC 240 Product Maintenance Manual The material in this document may only be used for the purpose stated in t...

Страница 3: ...3 ABBREVIATIONS AND SYMBOLS USED IN THIS MANUAL 1 3 SECTION 2 IDENTIFICATION Page 2 1 MAJOR ASSEMBLIES 2 1 2 2 ELECTRONICS ENCLOSURE MAJOR PARTS 2 2 2 3 WORKSTATION MONITOR MAJOR PARTS 2 3 2 3 1 Mono...

Страница 4: ...Front Panel Indicators 3 8 3 2 2 Color Monitor Indicators Front 3 9 3 3 SERVICE CONTROLS 3 10 3 3 1 EleL Lrunics Enciosure CPU Board Controls 3 10 3 3 2 Electronics Enclosure Winchester Floppy Control...

Страница 5: ...OC Voltage Test Points 3 17 3 4 2 CPU Boar d Monitor and Keyboard Voltage Test Points 3 18 3 4 3 Floppy Drive Voltage Test Points 3 19 3 4 4 Optional Drive Voltage Test Points 3 20 SECTION 4 OPERATION...

Страница 6: ...1 6 2 POWER UP DIAGNOSTIC BUilT IN TEST 6 2 6 2 1 Built In Test 8 1 T Description 6 2 6 2 2 B l T Error Messages 6 3 6 2 3 8 1 T Error Beep Codes 6 5 6 3 DIAGNOSTIC UTILITY 6 7 6 3 1 Diagnostic Utili...

Страница 7: ...nt Cover Removal 7 3 7 2 3 General Board Removal 7 4 7 2 4 Drive Removal 7 7 7 2 5 Power Supply Removal 7 9 7 2 6 CPU Board Removal 7 12 7 2 7 Lithium Battery Removal 7 15 7 2 8 Speaker Removal 7 16 S...

Страница 8: ...deo Board Switch Settings 9 8 9 3 5 EGA Monochrome Color Video Board Switch Settings 9 9 9 3 6 EGA Monochrome Color Video Board Jumper Locations 9 11 9 3 7 Floppy Only Controller Board Jumper Location...

Страница 9: ...PU Board DC Voltage and Ripple Checks 9 34 8 5 2 CPU Board Rear Panel Monitor and Keyboard DC Voltage and Ripple Ch cks 9 35 8 5 3 Floppy Diskette Drive DC Voltage and Ripple Checks 9 36 9 5 4 Winches...

Страница 10: ...cessor 10 9 10 4 3 Interrupt Control 10 10 10 4 4 Direct Memory Access OMA 10 13 10 4 5 IBM Emulation Chip Set 10 14 A _ r _ A 0 A r 1U 4 tJ HA VI HUIVI I I o 10 4 7 Keyboard Control 10 16 10 4 8 Para...

Страница 11: ...TABLE OF CONTENTS SECTION 11 SPECIFICATIONS Page 11 1 HARDWARE 11 1 SECTION 12 ILLUSTRATED PARTS Page 12 1 SYSTEM COMPONENTS 12 1 741 1808 Page xi COMPANY CONFIDENTIAL...

Страница 12: ...I...

Страница 13: ...SECTION 1 CONTENTS SECTION 1 INTRODUCTION Page 1 1 SCOPE AND PURPOSE 1 1 1 2 ORGANIZATION AND LAYOUT 1 2 1 3 ABBREVIATIONS AND SYMBOLS USED IN THIS MANUAL 1 3 741 1808 COMPANY CONFIDENTIAL...

Страница 14: ...ir information for the Wang PC 240 IBM compatible computer The manual s purpose is to provide Customer Engineering personnel with the information necessary to install operate troubleshoot and repair t...

Страница 15: ...ntained in a frame or frames Each frame comprises illustrations num bered steps and or text to describe the actions raquirad to accomplish each task References to other frames are indicated by an arro...

Страница 16: ...ss Request Acknowledge CGA COM Color Graphics Adapter DC Disk Controller DRWC Diskette Read Write Controller ECC Error Correction Code EGA Enhanced Graphics Adapter FRU Field Replaceable Unit H Hexide...

Страница 17: ...PAL Programmable Array Logic P N Part Number RAM Random Access Memory RAS Row Address Strobe RGB Red Green Blue signals RTC Real Time Clock RWC Read Write Controller SIMM Single In Line Memory Module...

Страница 18: ...SECTION2 IDENTIFICATION...

Страница 19: ...MA JOA ASSEMBLIES Page r 1 2 2 ELECTRONICS ENCLOSURE MAJOR PARTS 2 2 2 3 WORKSTATION MONITOR MAJOR PARTS 2 3 t J 1 L m n J c w I 1 llUllUL 111 Ult c IVIUlllt UI IVIOJUI ra1 I L u 2 3 1 Color Monitor...

Страница 20: ...2 1 IDENTIFICATION Major Assemblies 741 1808 _ELECTRONICS ENCLOSURE MONITOR MONOCHROME _ OR COLOR e END Page 2 1 COMPANY CONFIDENTIAL...

Страница 21: ...OPTION BUSS BOARD SOCKETS FOR OPTION PCBs CPU BOARD 741 1808 KEYLOCK Page 2 2 FLOPPY ONLY CONTROLLER BOARD PC 240 1 2 ANO 3 WINCHESTER UPGRADES I 1 2 MB FLOPPY DISKETIE DRIVE I OPTIONAL DISK DRIVE FL...

Страница 22: ...808 CRT MONOCHROME MONITOR SCREEN MONITOR POWER AND BRIGHTNESS CONTROL KNOB POWER ON PRESS SO BUTION PROTRUDES GREEN RING ENCIRCLING INSIDE OF BUTION JILL SHOW PHii LIPS SCREW CONTROLS TENSION OF TILT...

Страница 23: ...rkstation Monitor Major Parts 2 3 2 Color Monitor Major Parts 741 1808 CRT COLOR MONITOR SCREEN ADJUSTABLE TILT SWIVAL BASE Page 2 4 CONTROL l NOBS CONTRAST BRIGHT HORIZONTAL POWER ON OFF SWITCH e END...

Страница 24: ...I...

Страница 25: ...sure CPU Board Controls 3 10 3 3 2 Electronics Enclosure Winchester Floppy Diskette Controller Board Controls 3 11 3 3 3 Electronics Enclosure Monochrome Video Bd Controls 3 12 3 3 4 Electronics Enclo...

Страница 26: ...OSITION Type and Function Push button applies or removes power from system initiates B I T power up diagnostics and Initial Program Load Locked position prevents removal of top front cover and locks k...

Страница 27: ...Enclosure Rear Panel Controls Item Name 1 Voltage Select Switch 741 180U D 115 Vac Shown Type and Function Slider type switch selects ac operating voltage of 115V or 220V determined by available ine v...

Страница 28: ...nitor Controls Front Item 1 741 1808 Name Power Button and Brightness Control Type and Function Push button potentiometer type control applies and removes power from monitor and adjusts display bright...

Страница 29: ...ilt Control Screw Tilt Control Stick D Type and Function Potentiometer type control adjusts con trast of monitor display Phi11ips head screw adjusts spring loaded tension of monitor tilt control stick...

Страница 30: ...I L _ 11 a I D lf1t e a Type and Function Potentiometer type control adjusts Con trast of mon tor display Potentiometer type control adjusts bright ness of monitor display Potentiometer type control...

Страница 31: ...sig nals AUTO OUT When connected to IBM or IBM compatible computer A IN When connected to the computer other than above Push button type switch OUT Selects TIL type video output IN Selects analog type...

Страница 32: ...741 1808 Name Keyboard Tilt Controls Keyboard Clicker Control D Type and Function Potentiometer type controls adjusts key board tilt and height Potentiometer type control adjusts volume of keystroke...

Страница 33: ...sk Drive Activity LEO 4 Hard Disk Drive SELECT LED D Type and Function LED amber illuminates to indicate activity on floppy diskette drive LED green illuminates when power is applied to system LED red...

Страница 34: ...alog LED 3 TILLED 741 1808 Typ and Function LED amber illuminates to indicate power is applied to monitor LED amber illuminates to indicated moni tor is set for analog compatability LED red illuminate...

Страница 35: ...or Adapter Switch Type and Function Rocker type 4 bit switch bank used to designate disable serial port Rocker type 4 bit switch bank used to designate disable parallel port Two position slide switch...

Страница 36: ...ction _____________ 1 Drive Control 8 bit rocker type switch bank allows the 741 1808 Switch SW1 Winchester Floppy Controller and the Floppy Only Controller to coexist with each other The switch may b...

Страница 37: ...Monochrome Video Board Controls Item Name 1 SW1 741 1808 D Type and Function 2 position slide switch designates type of workstation monitor used Switch in UP position for 16 0 MHz monitor Switch in th...

Страница 38: ...sure EGA Monochr ome Color Video Board Con trols Item Name Type and Function D 1 Monitor Identification 6 bit rocker type switch bank designates 741 1808 Switch type of workstation monitor used mono c...

Страница 39: ...Controls Item Name 1 PCB Address Switch SW1 2 PROM Enable Switch SW2 3 Interrupt Jumper D Type and Function 10 bit rocker type switch sets board address 5 bit rocker type switch enables disables PROM...

Страница 40: ...1 Serial Port Address 1 0 bit rocker type switch sets Switch SW1 synchronous asynchronous serial port bus 1 0 address 2 41 1aoa Asynchronous Serial Port and interrupt Levei Switch SW1 A 4 bit rocker...

Страница 41: ...ts board Switch SW1 hexidecimal address 2 Existing 8 bit rocker type switch set to correspond Memory to amount of memory present in system Switch SW2 prior to installing expanded memory board 3 Memory...

Страница 42: ...Voltage Test Points D J7 CONNECTOR TEST I POINTS Item Name 1 Power Supply DC Voltage Test Points J7 741 1808 15V DV 5V OV 5V TtJpe and Function Connector on CPU board voltage test points for checking...

Страница 43: ...age Test Points Item Name 1 Monitor and Keyboard Voltage Test Points J3 741 1808 8 J3 CONNECTOR ON CPU BOARD 15V Type and Function Connector on CPU board voltage test points for checking keyboard volt...

Страница 44: ...ge Test Points Item Name 1 Floppy Drive Voltage Test Points 741 1808 Type and Function Power cable connector on floppy drive volt age test points for checking floppy drive voltages 5V 12V e END Page 3...

Страница 45: ...Test Points Item Na me 1 Optional 741 1809 Drive Voltage Test Points POWER CABLE CONNECTOR 12V fE Type and Function Q P 0 5V GNo D Power cable connector voltage test points for checking optional driv...

Страница 46: ......

Страница 47: ...SECTION 4 CONTENTS SECTION 4 OPERATION Page 4 1 POWER UP AND 8 1 T DIAGNOSTIC PROCEDURE 4 1 4 2 POWER DOWN PROCEDURE 4 3 741 1808 COMPANY CONFIDENTIAL I...

Страница 48: ...t 1 of 2 D Set power and monitor brightness control to out rqreen rina around oower and brighfness control shows OPERATION Diagnostic Procedure fJ Turn key clockwise to unlocked position 741 1808 Page...

Страница 49: ...h diagnostic built in tests To bypass memory diagnostics press keyboard space bar 741 1808 Page 4 2 8 Enter date and time B Power on peripherals NOTE Upon successful B I T completion system generates...

Страница 50: ...y exit from program i e cancel back to main menu before executing power down procedure 0 Power off peripherals 8 Press power on off button on electronics enclosure green LED next to power on off contr...

Страница 51: ...I I...

Страница 52: ...SECTION 5 CONTENTS SECTION 5 PREVENTIVE MAINTENANCE Page 5 1 PM SCHEDULE 5 1 741 1808 COMPANY CONFIDENTIAL...

Страница 53: ...5 1 PREVENTIVE MAINTENANCE PM Schedule Replace the lithium battery every two years 7 2 7 741 1808 e END COMPANY CONFIDENTIAL...

Страница 54: ......

Страница 55: ...C BUilT IN TEST 6 2 6 2 1 Built In Test B I T Description 6 2 6 2 2 B l T Error Messages 6 3 6 2 3 8 1 T Error Beep Codes 6 5 6 3 DIAGNOSTIC UTILITY 6 7 6 3 1 Diagnostic Utility Description 6 7 6 3 2...

Страница 56: ...the PC 240 computer include a standard CE tool kit a DVM and diagnostic test routines The diagnostic routines are contained on diskettes and should be used when troubleshooting at the customer s site...

Страница 57: ...ovides fatal and non fatal error indications that allow isolation of subassembly fail ures The B I T executes automati cally when the PC 240 is powered on Invalid configuration data or hardware malfun...

Страница 58: ...failure Winchester drive cables Winchester drive Hard disk read failure strike F1 to retry boot Winchester cables Winchester drive Invalid configuration information please run SETUP program Lithium ba...

Страница 59: ...XXXXX expecting XXXXX No boot device available strike F1 to retry boot Winchester floppy drive cables No boot sector on hard disk strike F1 to retry boot Winchester drive format drive cables No timer...

Страница 60: ...d 1 1 4 BIOS PROM on CPU board 1 2 1 CPU board 1 2 2 CPU board 1 2 3 CPU board 1 3 1 CPU board 1 3 3 CPU board 1 3 4 CPU board 1 4 1 CPU board 1 4 2 CPU board 2 1 1 CPU board 2 1 2 CPU board 2 1 3 CPU...

Страница 61: ...4 1 CPU board 2 4 2 CPU board 2 4 3 CPU board 2 4 4 CPU board 3 1 1 CPU board 3 1 2 CPU board 3 1 3 CPU board 3 1 4 CPU board 3 2 4 CPU board 3 3 4 Video board 3 4 1 Video board 3 4 2 Video board 4 2...

Страница 62: ...ty is a diskette based troubleshooting aid designed to run with minimal user intervention Tile non bootable 360 KB diskette contains files for one specific option only and can be made bootable when sy...

Страница 63: ...t system from diagnostic diskette 4 1 3 Press keyboard y key after dis claimer screen appears Pressing y key causes test selection screen to appear 4 Use keyboard INSERT and DELETE keys to deselect un...

Страница 64: ...ware Troubleshooting Action Check voltage at electrical outlet Source voltage O K Check continu ity of ac power cord replace if bad Source voltage incorrect Try another outlet if voltage still bad inf...

Страница 65: ...lace CPU board if system does not emit error beep codes If system emits beep codes after all Wang boards except CPU board have been removed replace Wang boards one at a time until faulty board isolate...

Страница 66: ...drive A and boot from hard disk Replace diskette drive A if MS DOS loads properly Replace Winchester floppy control ler if MS DOS does not load Replace CPU board If system not configured with Win che...

Страница 67: ......

Страница 68: ...ening Electronics Enclosure Top Cover Screws 7 2 7 2 2 Electronics Enclosure Top Front Cover Removal 7 3 7 2 3 General Board Removal 7 4 7 2 4 Drive Removal 7 7 7 2 5 Power Supply Removal 7 8 7 2 6 CP...

Страница 69: ...7 1 Tools and Test Equipment Wang CE tool kit P N 726 9401 Diagnostic disk P N 732 8098 package number 195 5537 9 741 1808 Page 7 1 REPAIR e END COMPANY CONFIDENTIAL...

Страница 70: ...Screws 0 Power down workstation 4 2 fJ Unplug ac power cord from ac outlet 8 Loosen captive screws that secure ac power cord to power connector Remove power cord CJ Loosen captive screws that secure...

Страница 71: ...ent contact C K Components Inc Highway 70 East P O Box 687 Clayton N C 27520 D With thumb on bottom drive push in while sliding cover approximately 2 inches toward front of electronics enclosure until...

Страница 72: ...Board Removal Sheet 1 of 3 D Power down workstation 4 2 fJ Unscrew top cover screws 7 2 1 D Remove top front cover 7 2 2 8 Unscrew and remove Phillips head screw that secures board to electronics encl...

Страница 73: ...cedures REPAIR 7 2 3 General Board Removal Sheet 2 of 3 0 Disconnect any connectors that attach to board that is to be removed 741 1808 Page 7 5 0 Slide board away from option buss board sockets COMPA...

Страница 74: ...heet 3 of 3 D To remove option buss board and floppy only controller board unscrew Phillips head screws securing boards to enclosure A Lift option buss hm irrl nd f oppy only controller board from CPU...

Страница 75: ...orkstation 4 2 0 Unscrew top cover screws 7 2 1 II Remove top front cover 7 2 2 D Press guide rails inward and pull drive s about 1 inch out of enclosure 0 Disconnect grounding straps power cables s a...

Страница 76: ...7 2 Removal Procedures REPAIR 7 2 4 Drive Removal Sheet 2 of 2 Cl Gently slide pull drive completely out of enclosure e END 741 1808 Page 7 8 COMPANY CONFIDENTIAL...

Страница 77: ...nscrew top cover screws 7 2 1 8 Remove top front cover 7 2 2J D Disconnect power supply cable s and grounding straps from connectors on rear of drives Disconnecting cable s from these drives might req...

Страница 78: ...7 2 Removal Procedures REPAIR 7 2 5 Power Supply Removal Sheet 2 of 3 8 Disconnect power supply cable from CPU board connector J7 L 741 1808 Page 7 10 COMPANY CONFIDENTIAL...

Страница 79: ...111 rear and side of chassis t D Remove and unscrew PhilHps head screws securing bracket to power suppiy Remove bracket Q Remove floppy only controller board 7 2 3 steps 5 and 7 741 1808 Page 7 11 Sl...

Страница 80: ...4 2 8 Unscrew top cover screws 7 2 1 8 Remove top front cover 7 2 2 D Remove option boards option buss board and Floppy Only Controller board from CPU board sockets 7 2 3 D Unscrew captive screw that...

Страница 81: ...cable from CPU board connector JB 0 Disconnect power supply cable from CPU board connector J7 7 2 5 step 5 I0 Disconnect keylock cable harness 220 2562 from CPU board connectors J10 and J11 _ CID Dis...

Страница 82: ...moval Sheet 3 of 3 Ga Remove Phillips head screws that secure CPU board to bottom of enclosure CB Carefully slide CPU board away from supports and out of unit CPU board must first clear rear of enclos...

Страница 83: ...ON Disconnecting lithium battery cable will result in erasure of CPU CMOS RAM Run SETUP program D Remove floppy only controller board 7 2 3 steps 5 and 7 8 Disconnect lithium battery cable from CPU bo...

Страница 84: ...e 220 2563 from CPU 8 Unscrew top cover screws 7 2 1 I Remove top front cover 7 2 2 II If applicable remove floppy only controller board 7 2 3 741 1808 Page 7 16 board connector J9 h CIUnscrew and rem...

Страница 85: ...8...

Страница 86: ...ION 8 CONTENTS SECTION 8 ADJUSTMENTS Page 8 1 TOOLS AND EQUIPMENT 8 1 8 1 1 Special Tools 8 1 8 2 MECHANICAL ADJUSTMENTS 8 2 8 2 1 Mating Arm Adapter Plate To Monitor Arm 8 2 741 1808 COMPANY CONFIDEN...

Страница 87: ...8 1 Tools and Equipment 8 1 1 Special Tools Special equipment or tools are not required to perform adjustments on the PC 240 computer 741 1808 Page 8 1 ADJUSTMENTS e END COMPANY CONFIDENTIAL...

Страница 88: ...le mechanical adjustment secures the arm adapter plate to the monitor arm The arm adapter plate connects the workstation monitor to the monitor arm SLEEVE BELLOWS D Sufficiently tighten locknut on bas...

Страница 89: ......

Страница 90: ...Switch Settings Monochrome Video Board Switch Settings EGA Monochrome Color Video Board Switch Settings EGA Monochrome Color Video Board Jumper Locations Floppy Only Controller Board Jumper Locations...

Страница 91: ...5 1 CPU Board DC Voltage and Ripple Checks 9 34 9 5 2 CPU Board Rear Panel Monitor and Keyboard DC Voltage and Ripple Checks 9 35 9 5 3 Floppy Diskette Drive DC Volta and Ripple Checks 9 36 9 5 4 Winc...

Страница 92: ...UNPACKING AND SETUP 9 1 Tools and Equipment Standard CE tool kit P N 726 9401 Digital multimeter Customer runnable diagnostic 741 1808 Page 9 1 e END COMPANY CONFIDENTIAL...

Страница 93: ...e electronics enclosure from shipping carton fl Inspect unit for external damage II Remove electronics enclosure top front cover D Inspect for internal damage and loose parts 8 Remove shipping protect...

Страница 94: ...9 2 UNPACKING AND SETUP Unpacking Procedures 9 2 2 Unpacking Workstation Monitor O Remove monitor from shipping carton f Inspect unit for external damage 741 1808 Page 9 3 e END COMPANY CONFIDENTIAL...

Страница 95: ...ack Box The Options Overpack box may in clude Winchester disk and floppy disk ette drives option boards cabling and keyboard country kit Keyboard country kit contains keyboard set up utilities diagnos...

Страница 96: ...Electronics Enclosure Line Voltage Select Switch D Set electronics enclosure voltage selection switch to correct line voltage setting 115 220 Vac 115 Vac shown 741 1808 Page 9 5 e END COMPANY CONFIDE...

Страница 97: ...7 2 2 NOTE Monitor adapter switch is not used when system is configured with EGA monochrome color video controller board fJ Slide two position monitor adapter switch to appropriate setting monochrome...

Страница 98: ...J13 switch bank J12 SERIAL COM COM PORT PORT 1 2 DISABLED JI I 111 a 1 c c O 2 c X E 54 c X Irz a 10 Irz a 10 IIZll 10 IIZll 10 741 1808 Page 9 7 J13 PARALLEL LPT LPT PORT PORT 1 2 DISABLED ll cJO c X...

Страница 99: ...Switch Settings and Jumpers 9 3 4 Monochrome Video Board Switch Settings 741 1808 D Verify proper switch setting Page 9 8 n Wang monochrome monitor Non Wang monochrome monitor rz a SWITCH POSITION e E...

Страница 100: ...NO MONO CHROME CHROME c Jx c Jx Jo c Jx Jo Jo I Jo x I Jo x I o I o COLOR COLOR GRAPHICS GRAPHICS ADAPTER ADAPTER 40 COLUMN BO COLUMN Jo x CE lx l o Cf L o CE JX l o x x Cf LJO Cf L O o Switch 5 enabl...

Страница 101: ...GRAPHICS ADAPTER AOJ PTER 200 LINE 350 LINE c J6 L O lo r i5 l__J IX c X c J4 L O JO c J3 IX X c J2 IX c X c J 1 I X f JO Switch 5 enc ibles disables Auto switch feature C I automatic mode switching...

Страница 102: ...d Jumpers 9 3 6 EGA Monochrome Color Video Board Jumper Locations 0 Remove top front cover 7 2 2 8 Remove EGA monochrome color video board 7 2 3 P5 1 2 3 P2 1 2 3 0 Verify proper jumper locations e EN...

Страница 103: ...r 7 2 2 J3 DRIVE TYPE JUMPER WANG AND IBM COMPATIBLE FLOPPY DRIVES E1 E3 1 2 3 fJ Remove floppy only diskette controller board 7 2 3 0 Verify proper jumper locations J3 J4 FLOPPY DISKETIE CONTROLLER P...

Страница 104: ...Settings D Remove top front cover 7 2 2 8 Verify proper switch settings f Remove Winchester floppy controller board 7 2 3 741 1808 Page 9 13 1 23456781 sw1 IuuuouuuuI ooooxxxx WIN TER For PC 240 3 Win...

Страница 105: ...roller board 7 2 3 IJ Verify proper jumper locations E1 E2 E3 E7 EB 0 0 0 000 E4 E5 EB 741 1808 Page 9 14 DRIVE TYPE JUMPER WANG AND IBM COMPATIBLE FLOPPY DRIVES E7 EB FLOPPY DRIVE PRIMARY ADDRESS E2...

Страница 106: ...erify SW2 PROM Enable settings 741 1808 x x x I l Z2 2 x 1 x SW2 PROM ENABLE Page 9 15 SW1 ADDRESS 1 2345678910 DDDDDDDDDD Q QQQQ Q ULT 0 0 x 0 x x x x 0 x QQ QQQ Q 322H 0 0 x x 0 x x x 0 x Q Q QQQ Q...

Страница 107: ...Locations D Remove top f rant cover 7 2 2 fJ Remove WLOC board 7 2 3 8 Verify proper jumper locations J4 JB J7 88886 J 888888 1110987 654321 POSITION 15 12 11 10 7 5 4 3 INTERRUPT REQUEST JUMPER POSIT...

Страница 108: ...SW 1A SERIAL PORT ADDRESS INTERRUPT LEVEL gg r 1 0 0 xx Q gg 2 xx 0 0 PORT CAN BE DISABLED BY SETIING SWITCH 10 ON BANK SW1 TO POSITION rz 11 SWITCH POSITION o OPEN CONTACTS x CLOSED CONTACTS 0Verify...

Страница 109: ...Synchronous Asynchronous Communications Board Jumper Locations D Remove top front cover a Remove synchronous 7 2 2 asynchronous board 7 2 3 8 Verify proper jumper location J3 00000000 i 00 OOOOOOOOJ...

Страница 110: ...ASSIST after A appears on screen Press RETURN and follow prompts D Remove top front cover 7 2 2 IZ SWITCH POSITION o OPEN CONTACTS x CLOSED CONTACTS fl Remove expanded memory board 7 2 3 I Verify prop...

Страница 111: ...memory board is installed Setting switch specifies that a certain amount of memory has already been installed These values are SW1 8192KB SW2 4096KB SW3 2048KB SW4 1024KB SW5 512KB SW6 256KB SW7 128KB...

Страница 112: ...ggg 4480KB g ggg Q xxxxoxox xxoxoxox xoxxoxxx 640KB QQQQ Q Q 2688KB gg g g 4608KB g gg ggg 768KB QQQQ QQ 2816KB QQ Q QQ 4736KB Q QQ Q Q 896KB QQQQ Q 2994KB QQ Q Q 4864KB Q QQ QQ xxxoxxxx xxooxxxx xox...

Страница 113: ...Q B320KB QQQQQ Q 10240KB Q QQQQQ 6528KB Q QQ Q 8448KB QQQQ QQ 1036BKB Q QQQ Q xooxoxxx oxxxxoox oxoxxoxx 6656KB Q Q QQQ 8576KB QQQQ Q 10496KB g Q g xooxoxox oxxxoxxx oxoxxoox 6784KB Q g g g 8704KB QQ...

Страница 114: ...616KB Q QQ 11904KB Q Q Q 13824KB Q QQQ 15744KB Q Q 12032KB Q QQ 13952KB Q Q Q 15872KB QQQ x 0 0 0 x 12160KB D D Q 14080KB Q QQ 0 0 x x x x x x 12288KB gQQ 14208KB Q Q 12416KB QQQQ Q 14366KB QQQQQ 1254...

Страница 115: ...itch Settings Sheet 6 of 7 0Remove top front cover 7 2 2 Ifl Remove expanded board 7 2 3 memory D Verify proper switch settings 9 3 14 sheet 7 SW3 MEMORY ALLOCATION DODDDDDD 1 23 4 5 6 7 8 mi SWITCH P...

Страница 116: ...1 10 12soKB 1a1 uua LJ ID IN ORDER TO OVERRIDE SW3 1 xx x a Q Q THROUGH SW3 4 SET SW3 8 TD QQ 14DBKB LJ IDLJIID x x 0 x 1536KB x x 0 0 QQ 1664KB x u x x Q Q 1792KB u u Q Q 1920KB x 0 0 x 204BKB x 0 0...

Страница 117: ...ect PACKING AND SETUP 9 4 1 Electronics Enclosure Board Locations BOARC FASTENING ACCESS PLATES OPTION BUSS BOARD SOCKETS 741 1808 CPU BOARD Page 9 26 FLOPPY ONLY CONTROLLER BOARD e END COMPANY CONFID...

Страница 118: ...ler Cabling Connections FLOPPY DRIVE A CABLE NOTE This floppy diskette cabling connection applies to PC 240 1 2 and to Winchester upgrades J1 FLOPPY ONLY DATA CABLE CONNECTOR DRIVES A AND B I _y FLOPP...

Страница 119: ...h this J 1 floppy diskette drive connection For PC 240 3 Winchester upgrade see 9 4 2 WINCHESTER FLOPPY CONTROL LER BOARD CABLING CONNECTIONS JB HARD DISK DRIVE ACTIVITY LED CABLE J4 DRIVE C CONNECTOR...

Страница 120: ...ns Sheet 1 of 2 741 1808 MONOCHROME COLOR VIDEO BOARD PANEL MONITOR 9 PIN 0 SHELL r nl 11 n r Tno I I _ I I I CPU BOARD CONNECTOR PANEL PARALLEL PORT 25 PIN D SHELL MOLTOR ONNECTOR KEYBOARD SERIAL POR...

Страница 121: ...2 WLOC BOARD r INTERFACE CONNECTORS FOR STANDARD 928 COAXIAL CABLE SYNCHRONOUS ASYNCHRONOUS COMMUNICATIONS BOARD INDUSTRY STANDARD ASYNCHRONOUS ONLY PORT 9 PIN D SHELL CONNECTOR SYNCHRONOUS ASYNCHRONO...

Страница 122: ...ectronics Enclosure AC Power Connection O Set voltage selection switch to proper line voltage 9 3 1 fJ Connect ac power cord between electronics enclosure and ac outlet Tighten connector screws 741 18...

Страница 123: ...nochro111e Monitor Connections 741 1808 0 Connect keyboard cable tc connector in rear of monitor fl Connect monitor cables 2 to EGA monochrome color video and CPU board ports Tighten D shell connector...

Страница 124: ...ons 741 1808 Page 9 33 D Connect video cable between monitor RGB TIL INPUT connector and EGA monochrome color board connector in rear of electronics unit Tighten connector screws I I f Connect ac powe...

Страница 125: ...on 3 1 1 J7 CONNECTOR TEST POINTS OV 5V 8 Connect common lead of DVM to OV test point on CPU board J7 connector D Connect positive lead of DVM to 5V 12V 15V 12V 5V test on J7 connector and verify de v...

Страница 126: ...ure power on off button to ON position 3 1 1 8 Connect common lead of DVM to DV test point on CPU board J7 connector 9 5 1 J3 CONNECTOR ON CPU BOARD DConnect positive lead of DVM to 5V 15V test points...

Страница 127: ...re power on off button to ON position 3 1 1 POWER CABLE CONNECTOR 12V 5V G D 8 Connect common lead of DVM to one of ground test points on floppy diskette power cable connector 8 Connect positive lead...

Страница 128: ...s enclosure power on off button to ON position 3 1 1 POWER CABLE CONNECTOR D Connect common lead of DVM to one of ground test points on floppy diskette power cable connector 8 Connect positive lead of...

Страница 129: ...cket L34 7 2 3 D Position coprocessor over L34 socket align coprocessor notch with socket notch D Align coprocessor pins with socket holes press coprocessor firmly into place L34 o r _ _ _ Jr _ __ _ _...

Страница 130: ...that secures fastening access plate to enclosure e Lift fastening access plate out of slot D Slide option boards between card guides on inside of enclosure and into option bus board sockets 8 Replace...

Страница 131: ...or pack from 360 KB Floppy drive The 720 KB Floppy drive does not have a terminating resistor pack POWER SUPPLY CONNECTOR RESISTOR PACK fJRemove top front cover 7 2 2 a If applicable remove drive I B...

Страница 132: ...TION 9 6 3 Floppy Diskette Drive B Installation Sheet 2 of 4 D Press in on floppy drive A guide rails pull drive A slightly forward 8 Partially slide optional floppy drive into B of enclosure 741 1808...

Страница 133: ...ctor for floppy drive B The drive cable is pre installed and the connector is keyed to avoid improper connection of the cable Connect the cable to floppy drive B FLOPPY DRIVE A CABLE FLOPPY DRIVE B CA...

Страница 134: ...s INSTALLATION 9 6 3 Floppy Diskette Drive B Installation Sheet 4 of 4 0 Completely slide floppy drives A and B into enclosure II Secure top front cover to electronics enclosure 741 1808 Page 9 43 END...

Страница 135: ...py Only Controller board at J 1 II Place the drive bottom side up Term Res Sw C C C C C C x x x x x x x x 11 Switch Position o Contacts Open x Contacts Closed fl Set terminating resistor switches to x...

Страница 136: ...of drive on the under side partially slide drive into location C Cl Press in on floppy drive A guide rails pull floppy drive A slightly forward D Disconnect cable at J 1 on the Floppy Only Controller...

Страница 137: ...into option bus board slot 9 6 2 12345678 Q SW1 0000 xx xx 11 Switch Position o Contacts Open x Contacts Closed cm Connect drive I I cI I cables 220 3603 and 220 3604 to J4 and J5 on th Winchester Flo...

Страница 138: ...d cables 220 3603 and 220 3604 to lie flat and route them across CPU board and into connectors at rear of drive GJ Cllnnect power cable and grounding strap to drive C CD Reinstall Floppy Only Controll...

Страница 139: ...iate socket on expanded memory board 8 Insert SIMM into board socket connectors on bottom of SIMM must be aligned with pins on board socket Apply light pressure to top of SIMM 8 Align holes in corners...

Страница 140: ...nd Installation D Use Allen wrench to assemble floor stand to the side frame supports STANDARD SETUP 8 Place electronics unit in vertical position and slide between sides of floor stand 741 1808 Page...

Страница 141: ...all internal and external options have been configured If the CPU board or lithium battery is replaced or if any new op tions are added SETUP must be run again The HDINIT Winchester initialization uti...

Страница 142: ...ults in destruction of all data already present on hard disk 1 Run HOINIT utility 2 Run FDISK utility 3 Run FORMAT utility 4 Type SYSC to copy system files to Winchester 5 Copy files from system diske...

Страница 143: ......

Страница 144: ...sor 80287 Coprocessor 10 9 10 4 3 Interrupt Control 10 10 10 4 4 Direct Memory Access OMA 10 13 10 4 5 IBM Emulation Chip Set 10 14 10 4 6 RAM ROM 10 15 10 4 7 Keyboard Control 10 16 10 4 8 Parallel I...

Страница 145: ...nicate with the CPU PCA In addition the system uses the keyboard s speaker to signal the usr when a valid or invalid key is pressed The monitor is the prin 1ary means by which the system communicates...

Страница 146: ...lus an additional 36 separate lines The 62 lines A1 31 B1 31 consist of five power lines three ground lines twenty address lines eight data lines and 26 control lines Address lines are used in two mod...

Страница 147: ...BU6 I I 1i 1 J J r r 1 1 V l 1 t ____ I I I I I I I _______ l ____J __ I JH ROM t 1 J _ LLJ____ r J L b _j r 1 _ __j l i i WIN fl OPl V i I I I CONlRllilR r r 7 c EC L i BUFFER MANAGEMENT AN CONlR l...

Страница 148: ...dedicated to the stan dar d system elements indicated their addresses and lengths are fixed 1 0 ports located in the 1DO 3FF ad dress range are fixed for certain de vices other devices are assigned 1...

Страница 149: ...2 OFO OFF Math coprocessor 1DO 16F FREE 170 177 Fixed disk secondary address 178 1EF FREE 1FD 1F7 Fixed disk primary address 1FB 1FF FREE 200 207 Game 1 0 208 21 F FREE 220 221 Sync async option 6th...

Страница 150: ...d address 2A4 2AF Expanded memory board 3rd address 280 2F7 FREE 2F8 2FF Serial port 2 sync async option 300 318 Prototype board 31C 31F FREE 320 321 WLOC option 2nd address 322 323 Sync async option...

Страница 151: ...3EF 3FO 3F7 3FB 3FF Device Diskette controller secondary address Parallel printer port 1 SDLC bisynchronous 2 FREE Bisynchronous 1 Monochrome display and printer adapter Reserved Color graphics monito...

Страница 152: ...ports and five 1 0 ootion slots fthree standard IBM 16 blt slots one standard IBM 8 bit slot and one special 8 bit slot for VVang Floppy Only Controller board The 16 bit slots have 62 and 36 pin bus...

Страница 153: ...programs that r1 rn nn m IRM Pr Ph c ir il mPmnr I 1 1 can be up to 1 MB in 64 KB seg ments In protected mode the 80286 exhibits additional features whicl1 increase the reliability and num ber of prog...

Страница 154: ...the ROM BIOS When an interrupt occurs the sys tem takP s the following general ac tions The device requesting the interrupt notifies the CPU The CPU suspends normal process ing and tucks away informat...

Страница 155: ...e an interrupt Interrupt request levels define the microprocessor s priorities in servic ing 1 0 inter rupts A device is as signed an interrupt request level to establish the priority of its interrupt...

Страница 156: ...ll Interrupt from CTRL 2 Real time clock interrupt Reserved for software WLOC option Assignable Assignable l llath Coprocessor Fixed disk controller Assignable Communications port 2 serial port 8 sync...

Страница 157: ...Refresh 1 SDLC 5 Spare 2 Floppy 6 Spare 3 Spare 7 Spare OMA Controller 1 channels 0 3 support 8 bit option PCAs and 8 or 16 bit system memory Each channel can transfer data throughout the 16 MB system...

Страница 158: ...Decode and Latch Parity Error Detection Clock Calendar Keyboard Status Control Port and NMI Enable Latch 1 0 Decode The 82A203 High Address Bus Buffer Port B Control chip pro vides nl i Or C nn o ff f...

Страница 159: ...FFF 960 to 1MB OFOOOO to OFFFFF 512KB CPU PCA Memory 128KB CPU PCA Memory 128KB Video Memory Graphics Display Buffer 128KB 1 0 Expansion ROM Reserved for ROM on 1 0 Option Boards Memory Paging and Exp...

Страница 160: ...8 bit read only output buffer and an 8 bit write only input buffer The Keyboard Controller will interrupt the system when data is placed in its output buff er The status register contains bits that in...

Страница 161: ...I nn t I I rlrl h1 1 r 7 0 u u o J t UI t UUUI CJ UIU J U I u 37F interrupt level 7 or Parallel printer Port 2 LPT2 at 1 0 port address block 278 27F interrupt level 5 as defined by a switch bank on t...

Страница 162: ...Five six seven and eight bit charac ters with 1 1 5 or 2 stop bits are supported A prioritized interrupt system controls transmit receive error and line status as well as data set interrupts A program...

Страница 163: ...ni t Pr _ _ that is used to define the operation of the counters The three counters are identical in operation Counters are programmed by writing a control word and then an initial count The control w...

Страница 164: ...and 64 bytes of CMOS RAM with battery backup The internal clock uses 14 bytes of this RAM and the rP st is user de fined The memory consists of 50 general user defined bytes 10 bytes which normally c...

Страница 165: ...light pen interface is provided A 32 pin feature connector allows access to internal functions Another 32 pin connector is reserved for future use A switch bank on the PCA selects the type of monitor...

Страница 166: ...ble modes and pro vides color comparators for use in color painting mrides The Attribute Controller provides a color palette of 16 colors each of which may be specified separately Six color outputs ar...

Страница 167: ...d UPD765 Diskette Control ler DC and a WD16C92 Diskette Read Write data and logic Control ler ORWC The HOC interfaces to the system address data and 1 0 control bus signals All fixed disk read write d...

Страница 168: ...ludes internal RAM and ROM mem ory The HOC provides the hard disk drive s data and control interface and sector data buffer control logic The major features of this device include Multiple sector read...

Страница 169: ......

Страница 170: ...SECTION 11 CONTENTS SECTION 11 SPECIFICATIONS Page 11 1 HARDWARE 11 1 741 1808 COMPANY CONFIDENTIAL...

Страница 171: ...7A 220 Vac Monochrome Monitor Dimensions Height 11 5 in 29 2 cm Width 12 5 in 31 8 cm Depth 12 5 in 31 8 cm Monochrome Monitor Weight 14 lb 6 36 kg Color Monitor Dimensions Height 13 5 in 34 3 cm Widt...

Страница 172: ...I...

Страница 173: ...SECTION 12 CONTEN1 s SECTION 12 ILLUSTRATED PARTS Page 12 1 SYSTEM COMPONENTS 12 1 741 1808 COMPANY CONFIDENTIAL...

Страница 174: ...ILLUSTRATED PARTS System Components Sheet 1 of 5 D Item Part Nurnber Description 1 279 0757 Monochrome monitor 2 725 3446 Color monitor 3 725 3401 US Keyboard NEXT 741 1808 Page 12 1 COMPANY CONFIDEN...

Страница 175: ...4 270 1806 5 279 0760 6 279 0765 7 279 0766 8 279 0767 9 279 0773 741 1808 Description Power supply 1 2MB diskette drive 360KB diskette drive 720KB diskette drive a D 20MB H HT Winchester disk drive 4...

Страница 176: ...e place Western Digital controller P N 725 3359 12 210 9035 Monochrome video board 13 210 9454 A Wang local office connection WLOC board 14 210 9453 Expanded memory board 15 210 9455 Synchronous async...

Страница 177: ...omponents Sheet 4 of 5 Item Part Number 19 220 2562 20 220 2563 21 377 4508 22 666 1016 741 1808 Description Keylock cable assembly Speaker and cable Single In Line Memory Module SIMM Lithium battery...

Страница 178: ...m Components Sheet 5 of 5 Item Part Number Description 23 220 3601 Floppy Only cable 24 220 3603 Wini Floppy cable 25 220 3604 Wini Floppy cable 26 220 2564 Wini Floppy ground cable e END 741 1808 Pag...

Страница 179: ...WANG WANGLABORATORIES INC ONE INDUSTRIAL AVENUE LOWELL MAOIRSI TELF PHONE 508 459 5 KKI TELEX 172108 COMPANY CQNFIDENTIAL PRINTED I U S A...

Страница 180: ......

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