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Sage II
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SAGE
II
SERVICE
MANUAL
II.OJ
INDEX
MOT-.
...
o..
. o.....
o
r.
o..
69
Multl-user
cable........
, r..
52
-I|-
Non-exlstant
memory.
. .
.
. .
. .63,
76
Not Boot
dlsk
error..
o...
o...
73
-P-
Parall-e1
CYCLER
port
test.
.,
o ...
..
.
33
prlnter
cablg.
....
.
..
.. .
.
53
printer
port
description..
o.
.57
Parltyr..
....
o.
.
. .
,.
o..
.
.
65
gffofs.
. . .
.
r.
..
.
. ..
.
.5,
77
interrupt.....
c..,
o
o
o.
..61
PCRMP-o
..
. .
. . .
.
o
. .
.
. .
. .
. .
69
PFH+.
. .
. .
. .
. .
. .
. .
. .
o
. .
. o
69
PFL+.
. .
. .
. .
. .
. .
.
. o .
. .
.
. .
69
Power.
. . .
. |
.
. . .
.
| .
o
. o
. .
. .
68
Powgr
supply...
I o.........
..6
checking.
. o.
r....
r.....
.
6
feplaCement..
o
o..
r o r.
r...
7
tolerancgs....
...
o.....
..G
Powgf-Upr
.
..
o o ..
...
o
..
.
.. .
8
Prlvllege
errors....
o......
.
77
Processlng
states.
.
..
. o
.
o .
. .
.5b
Processor
light............
o
56
PROMT
. o . .
o o
.
. ..
o
r.
r o
o .
o .
58
changgs.
.
. o...
.
...
...
. .79
Chgckstrm.
. .
. .
. o .
. . ..
o ..
ll
circult
description.
.
. o
! r
o
.
5g
diagnostics.
...
o.....
o...
8
PRTY-.
....
. ..
. r........
..69
-a-
Qume
prlnCer
cable...........
53
-R-
RA/l+.
RAM
.o
70
address
location.
. |
.. ...
. r
address
sequence......
o.
o.
arbltfatlon.
.
o .
. o
.
. .
. .
. .
checklng
sl-gnals.
. ..
o.
o..
.
control
signals...
o
....
63,
CYCLER
test.
...
o..
......
30
lntgrmlttent.
. .
. .
. . .
. . .
. .
20
memofy
teSE.
.
.
. .
. .
. . .
o .
.
11
non-gxLstant.
.....
. r..
63,
76
paflty
effof.
..
o..
o..
.
. .
,77
refresh
contention.
. r.
r,.
..62
wrlte
lOop.
. .
o
. o.
.. .
o .
. .
14
RD-.
. o .
. . .
. r .
. .
.
. r . .
. .
. . 70
RDY+.
. .
. .
I o
r . . t
o
. . o.o
.
. .
. 70
Rgal
tirne
test.....
I
o....
o ..37
Refrgsh.
.
. r.
. .
o o
. o
. .
. |
. . ,
62
checking
signals.
..
.. ..
..
.
17
Replacing
the
drlves....
o..,.
,49
Reservgd
TRAP.
. . .
o
. . ..
r..
o.
77
Resgt
circuit.
. o
o....
r o
o..
o
56
RF+.
.
. . o
. ..
. o .
o
o . | .
.
| . .
. 70
RF-.
. o
. r
. ..
.
.
.
. .
.
.. .
o .
r . 70
RG-.
r
. .
. .
. . .
. o .
o
. . o
. .
. . .
70
RMI-.
. .
r .
. . .
. |
. o
. . .
. .
. .
.
70
ROM-.
. .
.
. . .
. . o
.
.
.
o
. .
. . .
o
69
RRD|.
. .
.
. . . .
o o
. .
. .
. . o
, o .
69
RS232 port.
'...
r..
r.......
66
RW-
. .
. . .
. . o
. o .
. .
.
. t .
.
. . . 70
RWR-.
.
. o . ..
. . ...
i
o
..
. o .
.
69
IIXII+.
. o .
. o
. r . .
.
r - .
.
.
. . . .70
RX2I+.....
t o.
!...
o.
r ...
..70
-s-
st-
ttaaaoaaaaao
70
70
52-
.
.
o
. o
. . .
. . . .
. . .
, .
. .
. I
SAGE
bus
t t
| .
. . . o
r .
. .
. o
. o
t . .
55
II to
IV upgrade.
..
,..
.
..
.79
processor
descrlptl-on.
. .
o . .
.
55
SC+.
..
. . .
. .
. . .
. .
.
o , . .
o .
. 70
Schematlc
page
I descriptlon.
. .
o . .
. .
.55
page
2
descrlptlon.
...
o ..
..59
page
3 descrlptlon...
o....
,6L
page
4 descrlption.
..
.
. . .
. .64
page
5
descriptlon........
.65
page
6
descriptlon.
.
. . .
. o .
.66
page
7 descrlptlon.
..
o.,
. . .68
Scratch
dlskettes.......
r..
..36
Serlal
CYCLER
port
test.
......
. .
.
3l
prlnter
cable.
..
...
o
..
o
o.
53
prlnter
port
descrlptLon.
.,.
.67
SI+.
.
.
o . o
.
. . r
. o .
.
. . .
. . .
. 70
64
62
62
T7
64
88