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M
5
CONTROL MAP
PAGE
6 OF
t..
Are there any diagonal lines across the
display or any smeared characters?
Y N
065
Does the cursor appear under the 2nd or
3rd character on the top line of the
test pattern?
Y N
066
-Verify the TEST/NORMAL switch as
follows:
-Set the TEST/NORMAL switch to NORMAL.
The ready symbol
(@
or
~)
should
appe.!lr.
-Set the TEST/NORMAL switch to TEST.
The TEST MODE 1 pattern should return.
Is the switch OK?
Y N
067
-See Figure 6-8 to check the
continuity of the wiring to the
TEST/NORMAL switch, especially the
OV
connection from analog card P4
pin 10 to LED card P12 pin 6.
-Check the switch.
-Exchange any failing FRU.
-If
no
failure is found, exchange
logic card C2 then D2 then E2.
GO TO MAP 0000, ENTRY POINT BB.
068
Does a green pattern similar to the
correct TEST MODE 1 pattern appear,
but has characters in the wrong
sequence or upper case characters
only?
See Figure 2-2.
Y N
069
Are there any
'00'
characters on the
screen?
Check in NORMAL mode also.
Y N
070
-Set the TEST/NORMAL switch to
NORMAL.
DOes the ready symbol
(@
or
~J
appear?
Y N
NPQRST
N P
Q
R S T
MAP 0100-6
L
-Exchange logic card C2 then D2.
GO TO MAP 0000, ENTRY POINT BB.
072
-Hold down the ALT key, press the
TEST key, release both.
-Press keys / EHTER
-Check the pattern which displays
with Figure 2-4.
Is
it
correct? (Ignore color
problems. )
Y
I
;~~Change
logic card D2 then C2.
GO TO MAP 0000, ENTRY POINT BB.
074
Are the COLORS correct also?
Y
I
;~~Change
logic card E2 then
02:
GO TO MAP 0000, ENTRY POINT BB;
076
-Exchange logic card,
D2 .. 't:hen
C2.
GO TO MAP 0000,
ENT~Y
POINT BB.
077
-Exchange logic
e~rd.
02 then C2.
GO TO MAP 0000, ENTRY POINT BB;
078
. ,
-Verify that the A,a/A switch is set
to
AI~.
Press.t61.TESTkey; . •
Does a large 'X' character appear?
Y
I
;~~Chang~
logiC card C2
t~~n
02;
GO TO MAP 0000; ENTRY POINt
as;
080
.
-Switch power OFF
~.
-See Figure
6~8
to
ch~ck
the
continuity of
thQ
wiring to the
A;a/A
switch.
-Check the switch.
~
.Exchange any fa1iing
FRU.
-If no failure
is
found, exchanoe
logic card D2
~h~n
C2.
. •
GO TO MAP 0000, ENTRY POINT 8B;
g~lTO
MAP 0700. ENTRY POINt BU.
82
-Exchange logic card C2 then D2.
GO TO MAP 0000. ENTRY POINT BB.
04FEB81
MAP 0100-6
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