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CONTROL MAP
PAGE
8 OF
197
>Release Intensity Override.
(Turn
Brightness knob fully clockwise and then
back if too bright.)
.Press the keys with the following legends
shown in Figure 2-3:
B C I
J
K l K
Q /
pp ?
x )
Note - On most keyboards the legends
'pp',
'?', 'x' and ')' are on the keys
marked 'ALT', 'ENTER', 'TEST' and '@.'.
The cursor should move as each character
is entered.
Is all as expectedl
I
v
iZ8TO MAP 0700. ENTRY POINT A.
99
-Press these keys in sequence:
CONTROL C CONTROL
B B 0
I
-Press these keys in sequence:
CONTROL C
-Press these keys in sequence:
CONTROL B B 0
Q
Does the entire display become RED then
GREEN then BLUE1
Y N
v
100
-Set the TEST/NORMAL switch to NORMAL
and back to TEST.
-Connect a jumper from C2Ull to C2U08.
A solid red raster should cover the
characters on the screen.
-Remove the jumper.
-Now connect the jumper from C2S12 to
C2U08.
A solid blue raster should
cover the characters on the screen.
-Remove the jumper.
Did you see both the red and blue
rasters?
t
y
iglTO MAP 0300. ENTRY POINT A.
02
-Set the TEST/NORMAL switch to NORMAL.
-Hold down the AlT key. press the TEST
key, release both.
-Press keys / ENTER
The pattern shown in Figure 2-4 should
display.
(ONLINE TEST 0.)
Is the problem with this test pattern
that it does not display in the correct
colors or there is a color missing?
Y
I
;~~Change
logic card D2 then
C2.
GO TO MAP 0000. ENTRY POINT BB.
104
GO TO MAP 0500. ENTRY POINT A.
v
MAP 0100-8
L
-Set the TEST/NORMAL switch to NORMAL.
Is there a
~
or
~
symbol in the indicator
row?
Y N
106
Does the display show a green separator
line and a green cursor in the top
left-hand corner and NOTHING else?
Y N
107
Does an error code appear on the
screen or is there an entry in the
error log for this display? (See MIM
section 2.6.2 on how to read the error
log. )
(Take N path if you don't know.)
Y N
108
Does the display remain in TEST MODE
even when the TEST/NORMAL switch is
set to NORMAL?
Y
j
;~~Change
logic card C2 then D2.
GO 10 MAP 0000. ENTRY POINT BB.
10
-Switch power OFF
~.
-See Figure 6-8 to verify and repair
wiring and connections to tha
TEST/NORMAL switch.
GO TO MAP 0000. ENTRY POINT
BB.
111
-Use the 'Error Code-to-FRU' list (MIM
section 2.6.6) to isolate the failing
FRU.
GO TO MAP 0000. ENTRY POINT BB.
112
GO TO MAP 0900. ENTRY POINT BB.
III
The screen
should
appear:-
(A) White cursor at top left.
(8) Blue separator line near the bottom.
(e)
Any symbols in the indicator row
should be blue.
-Ignore any other image on the screen.
Are (A).
(B
J &
(e)
correct?
Y N
114
-Attempt to enter the convergence
routine.
(See MIM section 5.3.3.)
DO
the symbols
><*fi?
appear in the
indicator row?
Y N
9 9
W X
115
-Exchange logic card C2 then 02.
GO TO MAP 0000. ENTRY POINT
BB.
04FEB81
MAP 0100-8
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