Sage II User manual

SAGE
SERVICE
ocr.
SAGE COMPUTER
35 N. EDISON
RENO, NV
II
HANUAL
1982
TECHNOLOGY
SUITE
II4
89502

SAGE II SERVICEMANUAL
VERSION I.O
Copyrtght (c) L982, Sage Computer Technology, Reno, N 89502
A11 rlghts reserved. Reproduction or use of editorial or plctorial
content in any manner wtthouc express permisslon from Sage Computer
Technology is prohlbited. No patent liability is asstrmed
with respect
to the use of the information contained herein. I.lhlle every precautlon
has been taken ln the preparatlon of this book, Sage Computer Technology
assumes no responsibiltty for errors or omissions. Nelther ls any
llabtllty assumed for darnages resulting from the use of the lnformation
contained herei-n.
UCSDPASCAL
and UCSD
p-Systern are all trademarks of the regents of the
Universlty of California.

sAcErI SERVTCE
MANUAL
II .0]
TABLEOFCONTENTS
Table Of Contents
II
III
III.OI
I II. 02
III. 03
III. 04
IV
V
VI
VI.Ol
VII
vrr.0
I
VII.O2
VII. 03
vII.04
vrl.05
VIII
VIII. O 1
VIII. O2
VIII. 03
VIII. 04
VIII. O5
IX
x
XI
xr.01
xr.02
xr.03
xr.04
xI.05
DESCRIPTION OF DIAGNOSTIC AIDS . . . . . . . . . . . . 1
DIAGNOSTICAIDSAVAILABLE
. . . . . O''''''' O' 2
CAREAND
EANDLING
PROCEDURES. O'' I O' t''''' 3
CIRCUIT BOARD HANDLING. . O ' ' ' ' O ' ' ' I ' ' ' ' ' 3
CHIP HANDLING.
. . . . . . . . . . o r . o . . . . . . .3
DISK DRIVE HANDLING. . . . o o o . . . . . . . . . . . 3
I.{ICROPOLIS
DISK DRM HANDLING. . r . . o . . . . . . 3
SOFTT{ARE
INSTALLATION
O' O
O' O''' O' ! . O' t'
SYSTE},T
LEVEL TROUBLE SHOOTING O ' ' O I ' ' ' ' ' ' ' '5
CIIECKING
THE
PO.rilERSUPPLY
. . . . . . . . . . O'''' 6
REPLACINGTHE
POI^IERSUPPLY.. . . . . . . . . . . . . .7
poIIER-Up ROIITINE . . ., . . . . . . . . . . . . . . . .
INITIALIZATIONT
.. . . . . . o . o .. . . . . r .. .
RAlt{ I"IEMORY TEST . . . o o . . o . . o o . . o , . . . .
DISK B0OTSTRAP. . . . . . r . o . . . . . . I r . r . .
SPECIAL MONITORCOMI'{ANDS.
. o . . . . . . . . . . . .
I'IAINTENANCETESTS
8
9
11
L2
13
14
CPUBOARD
TROUBLESEOOTING
. . . . . . . . . . O'' O 15
CHECKINGTHESYSTEMCLOCK. . . . . . . . . . t . . . . 16
CHECKINGTHE
ADDRESS
STROBE
LINE. . . . . . . . . . . 16
CHECKING
THE
REFRESH
SIGNALS. . . . . . . . . . . . . 17
CTIECKINGTITERAM
SIGNALS. . . . . . . . . . . . . . . 17
REPLACING
THE COMPUTER
BOARD.. . . . . . . . . . . . 18
TEITIPERATURE
TEST . . . . ., o o . . . . . . . r . . . . 19
INTBR}IITTANCECHECKLIST
. . . . . . . .. . . I ' ' ..20
CTCLER.TEST . . . . . . r o . . . . . . . . . . . . . . . 2L
TESTOPERATION.. . . t . . . . . . . . . . r t . . . .22
TEST ERRORDISPLAY. . . o . . . . . . . . . ' . . . . 23
AtrTER.. . o . o . . . . . . . . . . . . . . . . . . . .28
CYCLERRAl'fTEST. . . . . . . r . . . . . .. . . . . . . 30
SERIALTEST.
. . . . . . o ... . . . . . .. . . . . . 31 \
!
)

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TABLEOF CONTENTS
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XI.
07
xr.08
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xr.
10
XI.II
xr.
12
XII
XII.
O
1
XIII
XIII.Ol
XIII. O
2
XI
II. O3
XI
II. 04
XIII.05
XIV
XV
XVI
XVII
xvrr.0
I
XVII.O2
XVI
I. 03
XVII. 04
xvrI.05
XVII. 06
XVII. OT
xvl
r.08
XVIII
XVIII. O1
XVIII.O2
xvrrr.03
XIX
xrx.0l
xrx.02
PARALLEL
TEST. . . . . . . o . . . . . . . . . . . . . 33
FLOPPY
DRIVE TEST. . . o . o . . . . . o . . . . . . . 35
DISK STRAP
TEST. . o . . . o . . . . . . . . . . . . . 17
swITcH TEST. . . . . . . . I o . o . . . . . . . . . . 37
ATTACH
TEST. . . . . . o . . . . . o | . . . . . o . t 37
REAL
TIME TEST. . . . o o . r . . . . o . . . . . o o .37
BUILDING cYcLER. . . . . . . . . o . o . . . . . . o . 38
'':
CLEANERPROGR.AI.{
.. o..... o
o... o..... t 19
BUILDING
CLEANER.
. . . . . . . . . . . O ' O O ' ' . .39
ALIGNI.TENTDIAGNOSTIC
.... r o.. '.. I o.. r. 40
TEST
DESCRIPTION.
. . o o . . . . f . . . . o r . . . .44
:
PATTERN
1. .. ... " o
' r " o
| " o
" ' " 45
PATTERN
2.. . . . . . . . . . . . o o . . . o o . . . 45
PATTERN
3. . . . . o . . . . . . o o . . . . o . . . , 47
BUILDING
ALIGN. . . o . o . . . . . . . . . . . . . . .48
REPLACING
THE FLOPPY
DISK DRIVE . . . . . I O'' .. 49
suBsYsTEu
IioDIFICATIONS
. . . . . . . . . . . . . . .' 50
CABLE
WIRING NOTES o . . o . . . . . o. . . . . o . . .52
CPU BOARD
CIRCUIT DESCRIPTIONS . . . . . . . . O O'
PAGE I 0F SCHEMATIC. . . . | . o o . . . . . . . . . .
PAGE 2 OF SCHEMATIC
DIAGRAMS. . . . . . . . . . . . .
PAGE3 OF SCI{EMATIC
DIAGRAI"IS
. . .
PAGE
4 OF SCI1EMATIC
DIAGRAMS.
. . . . . . . . . . . . 64
PAGE5 OF SCHEMATIC
DIAGRAI"{S.
. . . . o . . ' ' o ' ' 65
PAGE
6 OF SCHEMATIC
DIAGRAMS.
. . . . . . . . . . I O 66
PAGE
7 OF SCIIEMATIC
DIAGRAMS.
. . . . . . . . ' . . . 68
LIST OF SIGNAL
ABBREVIATIONS.
. . . . . . . . . . . . 69
ERROR
LOOKUP
LIST . . . . . . . . . . . . . . . . c ., 7L
BIOS CI{ANNEL
ERROR
CODES.
. . . . . . . . . . . . . . 7I
BOOT ERRORS. . . . . . . . . ' ' t t ' o o t ' ' t ' ' 7?
D(CEPTIoN
ERRORS.
. . . . . . . . . . . . . . . . . . .75
55
55
59
ftl
HARDTARE CEANGBS ON SAGE II
PROM
CHANGES. . . . . . . . .
CPU BOARD
CHANGTS. . . . .*
. . . . . . . . o . . . . 79
'r79
a a a a a O
a a a a a a ar
t
. . . . . . . . . . . . , 79

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TABLE
OF CONTENTS
XIX.O3
XIX.
04
XIX.
O5
XIX.
06
XIX.
O7
XIX.
O8
CHANGES
FROM
CB0000
TO c80001. . . . . r . . . . . . 79
CHANGES
FROMC80001
T0 c80002. . r . . . . . . . . . 80
CHANGES
FROM
CB0002
TO CB0002B. . . . . . . . . . . . 82
DELAYLINE MODS.. . . . . . . . . . . . . . . . . . o 83
It'IECHANICAL
CHANGES.
. . . . . . o . . . . . . . . . . 84
GENERAL
MECHANICAL
NOTES.. . O ' ' O' ' ' O ' ' ' ' 84

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DESCRIPTION
OF DIAGNOSTIC
AIDS
DESCRIPTION OF DIAGNOSTIC AIDS :
The Service Kit contalns several major dlagnostlc aids for the SAGEII
user/dealer and are explalned in detail tn this doctrment. Briefly, they
are
The POIIER-UP
(
OR BOOT) TEST resides ln
ts always executed on power-up or reset.
system checkout. Troubleshooting at thts
good dlgttal hardware experlence.
the PROMS
of the SAGE II and
It provldes a good overall
level ls aiured at a user wlth
The CYCLER test is a system exerciser. Tests of all major system
components are repeatedly executed. The disk Eest is especially useful
for identlfying the true perfornance of a drive. This test can be run
by any user but hardware experience will be necessary to lsolate some
types of problems and repair them.
The ALIGNITENT test is used to determine if a drlve ls misaligned.
Sfunple, step-by-step lnstructions and a new philosophy of Eestlng using
a speclally formatted diagnostlc diskette make this test easy to run.
The CTEANER program ls used wirh
heads of a floppy drive. Often
bulldup.
a diskette cleaning kit to clean the
disk errors are due to slnple dlrt
The ERR0R LOOKUPllst ls a llst of error messages and what they mean,
Also available are descriptions of the system operation with some
valuable trouble shooting hints.