Corvus systems Corvus Concept User manual

LIMITED WARRANTY
CORVUS SYSTEMS, Inc. warrants all its hardware and software for a perio<;i of 180 days from
the date of purchase from any authorized
Corvus Dealer. Should the product fail to be in good
working order at any time during this period, Corvus Systems will, at its option, repair
or replace
this product at no additional charge except as set forth below. Repairs will be performed
and non-
functioning
parts replaced either with new or reconditioned components to'make the product
function according to company standards and specifications. All replaced parts become the prop-
erty of Corvus Systems,
Inc. This limited warranty does not include service to repair damage to the
product resulting from accident, disaster, misuse, abuse or modifications that are unapproved by
Corvus Systems.
Limited Warranty service may
be obtained by delivering the product during the 180 day war-
ranty period to
Corvus Systems with proof of purchase date. YOU MUST CONTACT CORVUS
CUSTOMER SERVICE TO OBTAIN A "RETURN MERCHANDISE AUTHORIZATION"
PRIOR TO RETURNING THE PRODUCT. THE RMA (RETURN MERCHANDISE AUTHORI-
ZATION) NUMBER ISSl,JED
BY CORVUS CUSTOMER SERVICE MUST APPEAR ON THE
EXTERIOR OF THE SHIPPING CONTAINER. ONLY ORIGINAL OR EQUIVALENT SHIPPING
MATERIALS MUST BE USED. If this product is delivered by mail, you agree to insure the prod-
uct
or assume the risk of loss or damage in transit, to prepay shipping charges to the warranty
service location
and to use the original shipping container. Contact Corvus Systems or write to
the Corvus Systems Service Center, 2029 O'Toole, San
Jose, CA 95131 prior to shipping equipment
ALL EXPRESSED AND IMPLIED WARRANTIES FOR THIS PRODUCT INCLUDING THE
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
LIMITED IN DURATION TO A PERIOD OF 180
DAYS FROM DATE OF PURCHASE, AND NO
WARRANTIES, WHETHER EXPRESSED OR IMPLIED WILL APPLY AFTER THIS PERIOD.
SOME STATES
DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WAR-
RANTY LASTS, SO THE ABOVE LIMITATIONS
MAY NOT APPLY TO YOU.
IF THIS PRODUCT IS NOT IN GOOD WORKING ORDER AS WARRANTED ABOVE, YOUR
SOLE
REMEDY SHALL BE REPAIR OR REPLACEMENT AS PROVIDED ABOVE. IN NO
EVENT WILL CORVUS SYSTEMS BE LIABLE TO YOU FOR ANY DAMAGES, INCLUDING
ANY LOST PROFITS, LOST SAVINGS OR OTHER INCIDENTAL OR CONSEQUENTIAL
DAMAGES ARISING OUT OF THE USE OF OR INABILITY TO USE SUCH PRODUCT, EVEN
IF CORVUS SYSTEMS OR AN AUTHORIZED CORVUS SYSTEMS DEALER HAS BEEN
ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, OR FOR ANY:CLAIM
BY ANY
OTHER PARTY.
SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR
CONSEQUENTIAL DAMAGES FOR CONSUMER PRODUCTS, SO THE
ABOVE LIMITATIONS
OR EXCLUSIONS
MAY NOT APPLY TO YOU. '
THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE
OTHER RIGHTS WHICH MAY VARY FROM STATE TO STATE.
FCC WARNING
This equipment generates, uses, and can radiate radio frequency energy and if not installed and
used in accordance with the instruction manual, may cause interference to radio communications.
As temporarily permitted
by regulation it has not been tested for compliance'with the limits for
Class A computing devices pursuant to Subpart J of Part 15 of FCC Rules, which are designed to .
provide reasonable protection against such interference in which case the user at his
own expense
will
be required to take whatever measures may be needed to correct the interference.
NOTICE
Corvus Systems, Inc. reserves the right to inake changes in the product described in this manual
at any time without notice. Revised manuals will
be published as needed and may be purchased
from authorized
Corvus Dealers.
This manual is copyrighted
and contains proprietary information. All rights re~erved. This docu-
ment may not, in whole
or in part be copied, photocopied, reproduced, translated, or reduced to
any electronic medium
or machine readable form without prior consent, in writing, from Corvus
Systems, Inc.
CORVUS SYSTEMS
2029 O'Toole Avenue
San Jose, CA 95131
Telephone: [phone]
TELEX: 278976
Copyright
©1983 by Corvus Systems, Inc.
The Corvus Concept,'" Transporter,
TW Corvus OMNINET,N Corvus Logicalc,'W Time Travel Editing,'W
EdWord,'" Constellation,N Corvus,N Corvus Systems,N Personal Workstation,N Tap Box/w Passive
Tap Box/wand Omninet Unifw are trademarks of Corvus Systems, Inc.
MIRROR® is a registered Corvus Systems trademark. Patented.

PART NO.: 7100-04701
DOCUMENT NO.: CCC/30-01l1.1
RELEASE DATE: April, 1983
CORVUS DEALER SERVICE
CORVUS SYSTEMS
CONCEPT
PERSONAL WORKSTATION
SERVICE MANUAL
This document contains three types of notations. These are, in increasing order of importance.
NOTE, CAUTION, and WARNING. The NOTE indicates some action to be taken to speed or
simplify a procedure. The CAUTION indicates that potential damage to the equipment or user
data exists, and care should be taken to avoid this. The WARNING indicates that potential
harm or injury to the service technician or operator exists, and extreme care should be taken to
avoid these.

CORVUS DEALER SERVICE
TABLE OF CONTENTS
iii

Ball'" is a trademark of Ball Inc.
Selectric'" is a
trademark of IBM Corp.
ACIDC" is a trademark of AC/DC Inc.
Tandon" is a trademark of Tandon Corp.
MACSbug'" is a
trademark of Motorola Corp.
Synertek" is a trademark of Synertek
Moss Technology is a trademark of Moss Technologies Inc.
Rockwell International is a
trademark of Rockwell International Corp.
iv

CORVUS DEALER SERVICE
TABLE OF CONTENTS
CHAPTER 1-0VI~RVIEW
1.0 Scope of Chapter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3
1.1 Concept Mlodules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3
1.1.1 Electronics Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3
1.1.1.1 Processor Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3
1.1.1.2 Memory Board. . .. ..... . .. ........ ... ...... ......... .. .. . ..... .. . . .. .. .. 4
1.1.2 Video Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4
1.1.3 I<eyboard. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4
1.1.4 Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4
1.2 Concept Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 5
1.2.1 Operating System Software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 5
1.2.2 Floppy Disk Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 5
1.2.3 Winchester Disk Drive Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 5
1.2.4 Archival and Back-Up Option. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 5
1.2.5 Network Option. .. . . . .. . . .. .. .. ... ... ..... ... ..... .. . . ........ .. ... . .. . .. ... .. . .. 5
CHAPTER 2-FUNCTIONAL DESCRIPTION
2.0 Scope of Chapter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 9
2.1 C:oncept Processor Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 9
2:.1.1 Microprocessor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 9
2:.1.2 Bus Buffers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 10
2:.1.3 Memory Mapper. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 10
2 .. 1.4 ROMs and Static RAM ............................................................. 10
2 .. 1.5 OMNINET ....................................................................... 11
2:.1.6 50-Pin I/O Slots. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 12
2:.1.7 Data Communication Ports ......................................................... 13
2 .. 1.8 Interrupts ........................................................................ 14
2.1.9 Memory Arbitration ............................................................... 15
2 .. 1.10 Calendar ......................................................................... 16
2.1.11 Bell, Timer, and VIA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.1.12 Data Acknowledge ................................................................ 16
2.2 Concept Mlemory Board ...................................................................... 17
2.2.1 Oscillator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.2.2 Horizontal Timing ................................................................. 17
2.2.3 Vertical Timing .................................................................... 18
2.2.4 RAM Timing ...................................................................... 18
2.2.5 Memory Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.2.6 Video Address Counter ............................................................ 18
2.2.7 Memory Multiplexing .............................................................. 18
2.2.8 Memory Array .................................................................... 18
2.2.9 Memory Buffers ................................................................... 19
2.2.10 Video Shift Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
CHAPTER 3-DISASSEMBLY
3.0 Scope of Chapter ............................................................................ 23
3.1 Installation ................................................................................. 23
3.2 Visual Inspection ............................................................................ 23
3.3 Video Monitor Removal and Disassembly .................................... , .................. 23
3.4 Keyboard Disassembly and Cleaning ........................................................... 24
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CORVUS DEALER SERVICE
3.5 Electronics Tray Disassembly and Assembly ..................................................... 24
3.6
Power Supply Removal ...................................................................... 25
CHAPTER
4-ADJUSTMENTS
4.0 Scope of Chapter ............................................................................ 29
4.1 Concept Power Supply Adjustments ........................................................... 29
4.2
Preparations for Video Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.3 Video Alignment and Adjustment ............................................................. 30
CHAPTER 5- TROUBLESHOOTING
5.0 Scope
of Chapter ............................................................................ 37
5.1 Levell Troubleshooting ...................................................................... 37
5.1.1 Video Monitor .................................................................... 37
5.1.2 Power Supply ..................................................................... 39
5.1.3
Power-On Self Tests. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
5.1.4 Self Test Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
5.1.5 Boot Problems .................................................................... 42
5.2 Level 2 Troubleshooting
...................................................................... 44
5.2.1 MACSbug Installation
Procedures ................................................... 44
5.2.2 Communicating with MACSbug ..................................................... 46
5.2.3
Operating Procedures .............................................................. 46
5.2.4 MACSbug Routines
................................................................ 47
5.3 Component Level Troubleshooting ............................................................ 47
5.3.1
Proc~ssor Signal Descriptions ....................................................... 47
5.3.2
Processor Test Points .............................................................. 47
5.3.3
Memory and Video Controller Test Points ............................................ 50
Appendix A: Schematics and Assembly Drawings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
A-I Revision 03 Schematics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
A-2 Revision 04 Schematics
.......................................................... 61
A-3 Assembly Drawings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Appendix B:
Troubleshooting Flow Chart ......................................................... 83
Appendix C:
Test Point Signals ................................................................... 89
C-1 Processor Board Signals ......................................................... 90
C-2 Memory Board Signals .......................................................... 95
Appendix 0:
Timing Charts ...................................................................... 99
0-1 Processor Board Timing Charts .................................................. 101
0-2 Memory Board Timing Charts ................................. , ................. 104
Appendix E:
MACSbug ........................................................................ 107
E-1 MACSbug Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
E-2 MACSbug Routines ............................................................ 111
E-3 Self Test
Routines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Appendix F: Maps ........... ~ ................................................................. 123
F-1 General Memory and 110 Maps .................................................. 125
F-2 ROM
Mapping of I/O Slots ...................................................... 129
F-3 VIA
General Purpose 110 Ports .................................................. 131
F-4
OMNINET .................................................................... 135
F-5
Clock/Calendar/ ALTMAP/Volume ............................................... 139
F-6 Data
Communication and Keyboard Registers ..................................... 143
Appendix G: Memory Board Jumper Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
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CORVUS DEALER SERVICE
Appendix H:
Connector Descriptions ............................................................. 153
H-l 50-Pin I/O SLOT Description .................................................... 155
H-2 Data
Communication Ports Jl and J2 .............................................. 157
H-3 Board
Connectors J4, J5, and J6 ................................................... 161
H-4 Additional
Connectors .......................................................... 165
Appendix I:
Concept Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
AppendixJ: Specifications ...................................................................... 173
LIST OF ILLUSTRATIONS AND TABLES
ILLUSTRATIONS
Figure Page
1
Concept Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3
2 Motorola MC68000. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.. 9
3
Memory Mapper ............................................................................ 10
4 ROM and Static RAM Sockets ................................................................ 11
5 ADLC ..................................................................................... 12
6 Data Acknowledge Timing
................................................................... 16
7 Horizontal Timing Circuit .................................................................... 17
8
Concept Rear View .......................................................................... 23
9 Latch Screws
............................................................................... 24
10 Electronics Tray Power Connections ........................................................... 24
11
Concept Power Supply Voltage Adjustments ................................................... 29
12 CRT
Adjustment Yoke ....................................................................... 31
13 Horizontal and Vertical PCA .................................................................. 31
14 Video PC:A ................................................................................. 32
15
CORCOM Setting ........................................................................... 38
16
Monitor Voltage Test Points .................................................................. 39
17 Rev 03 Boot Switch Settings
.................................................................. 43
18 Rev 04 Boot Switch Setting ................................................................... 43
19 Rev 03 ROM
and RAM Locations .............................................................. 45
20 Rev 04 ROM and RAM Locations .............................................................. 45
TABLES
Table Page
1
I/O Address Space .......................................................................... 12
2
I/O Slot Pin Descriptions ..................................................................... 13
3
Interrupt Levels ............................................................................. 14
4
Processor Board Test Points .................................................................. 48
5
Memory and Timing Signal Locations .......................................................... 50
vii