E H l
233
0~4
KEyaOARD
MAP
PAGE
4
OF
Q
~C()nneo1
the keyboard eable at 24.
Defective
F2
(base
I/O)
oard.
DefEictive
G2
(controller) card,
025
·Remove the keyboilr\:l cable at Z4.
(refer
to
~09.)
-Probe F2-U12 (-kElyboarq strqbe).
Is
the
UP
lI,ht
on? .
V N
028
-Connect the keyboard cable
ilt
Z4.
Defective
F2
(base
I/O)
cant.
027
-Connect tl1ekeyboard cBble at
~4,
Defective ATTN or
HOI,..O
key module
(refer
to
252).
Defective keyboard
PC
board
{r(lf,r
to
251)i
Check/
replace keyboard cable
(refer
to
21;55).
028
Did
OP
appear on
the
display?
V N
029
Did
the
upperoa.e charecter
~or
the
0 key
display?
V N
654
M N P
P
4.
MAP06()()-.4 .
030
Did
only
one character dlap,ay?
V N
031
-Press and hold the K key.
-Press
RESTART.
wait
10 seconds.
(refer
to
249, checkpoints).
Is
the
machine
at
checkpoint
G?
V N
032
-Release the
Kkey.
Did either
L,OAD
0
or
CLEARWS
(with
no
misspelling)
app~ar
on one and
only
one
lin.
of
the
5 inch display7
V N
033
Defective H2
(I/O
and diag)
Gard.
034
Defective ATTN or HO\.D key modl,lle
(refer
to
252).
Defective keyboard
PC
board (refer
to
251).
Check/replace
keybOl;lrd
cable
(refer
to
255).
035
-Relaase the K key.
Do positions 3 and 4
of
line 3 on
the
display contain 30?
V N
036
Defective
H2
(I/O
and diag) card.
5 5
Q R
07,J1.,1
L75
PN
1608391
EC
628851
PEe
--~--~
MAP 0600-4
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