(
(
(
A A A
BCD
666
064
DISPLAY
MAP
PAGE 7
OF
10
Defective K2
(read/write
storage) card.
Defective K4
(read/write
storage) card.
Defective
J2
(display) card.
Defective
F2
(base
I/O)
card.
Defective G2 (controller) card.
Defective H2
(I/O
and diag) card.
065
One
of
the cards removed is defective.
Reinstall them
two
at a
time
(L first, then M,
N)
to
isolate
to
a pair. Then replace one
of
the
pair
to
find the defective card.
066
-Enter the
following
characters
in
order:
4455@@@
Is
4455@@@
followed
by
a
flashing
cursor
displayed
on
the
line
below
CLEAR
WS
or
LOAD
0
and
nowhere
else?
Y N
067
-Power
down.
-Remove the storage cards
L2, L4,
M2, M4,
N2, and
N4.
-Power
up.
Wait
30
seconds.
-Enter the
following
characters
in
order.
4455@@@
Is
4455@@@
followed
by
a
flashing
cursor
displayed
on
the
line
below
CLEAR
WS
or
LOAD
0
and
nowhere
else?
Y N
7 7
A A
E F
068
One
of
the cards removed is defective.
Reinstall them
two
at a
time
(L
first. then
M,
N)
to
isolate
to
a pair. Then replace one
of
the pair
to
find the defective card.
Y A A
6 E F
7 7
069
MAP
0500-7
Defective K2
(read/write
storage) card.
Defective K4
(read/write
storage) card.
Defective
J2
(display) card.
Defective
F2
(base
I/O)
card.
Defective G2 (controller) card.
Defective H2
(I/O
and diag) card.
070
Defective K2
(read/write
storage) card.
Defective K4
(read/write
storage) card.
Defective
J2
(display) card.
Defective
F2
(base
I/O)
card.
Defective G2 (controller) card.
Defective H2
(I/O
and diag) card.
071
-Measure +8.5 vdc
at
board location C1-C13 .
Is
the
voltage
in
tolerance
(+7.8
vdc
to
+9.3
vdcl?
Y N
072
Go
to
MAP
0700.
Entry
Point
A.
073
-Measure J2-J11 (+8.5 vdc)
to
J2-D08
(gnd).
Is
the
voltage
in
tolerance
(+7.8
vdc
to
+9.3
vdcl?
Y N
074
The circuit
is
open between the
power
supply
connector
Yl
(Al
board location
Cl-C13)
and
J2-J11 .
075
Defective
J2
(display) card.
28SEP76
PN
1608389
EC
829670
PEC
828851
MAP
0500-7
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