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CONTROL MAP
PAGE
2 OF
9
(Step 001 continued)
-Switch power OFF
~
and remove the power
cord from the mainline power socket.
-Check the screws holding the analog card
and power supply cards.
.Reseat the plugs on the video and
amplifier cards.
-Reseat the video card.
eReseat the cards in the logic gate and
the top card connectors.
eResea,t the connectors on the rear of the
logic gate.
(A2. A3. AS)
-lift off the bezel .
• Reseat the plugs on the bezel.
(PII.
P12) (Figure 1-2)
-Reseat the plug (P28) near the analog
card socket.
-Switch power ON
m.
-Set switches:-
TEST/NORMAL to
TEST.
0000/00
to
0000.
A,a/A
to
A,a.
-Turn security key
(if
present) fully
clockwise.
-Turn BRIGHTNESS knob fully clockwise.
-Wait at least 1 minute or until an image
appears.
-Turn BRIGHTNESS knob until the screen
brightness is acceptable.
The pattern shown in Figure 2-2 (TEST MODE
1) should display in green, with a green
cursor in the top left corner.
The
characters should be good.
IS EVERYTHING
in
this image correct?
j
y
ig2TO PAGE 5. STEP 046.
ENTRY POINT BB.
03
Test operation with the control unit and
the coaxial device cable as follows:-
-Set up the ONLINE TEST 0 pattern.
-Set the TEST/NORMAL switch to NORMAL.
-Hold down the ALT key. press the TEST
key, release both.
-The word 'TEST' should show in the
indicator row.
-Press keys / ENTER
The pattern shown in Figure 2-4 (ONLINE
TEST 0) should display.
IS ALL correct?
(Ignore any convergence problems).
Y N
A
004
GO TO PAGE 7. STEP 091,
ENTRY POINT CC.
A
I1AP
0100-2
I
005
-Return cursor under C of CK field.
(If
misconverged, use the green cursor.)
-Press keys
a
(insert) J K L
Field should become jkCK
The symbols ><*> should appear in the
operator information area.
Are ALL actions correct?
Y
I
ig 6 TO PAGE 7. STEP 091.
ENTRY POINT CC.
007
-Press the RESET key.
IS the convergence good?
Take the Y path
if
you don't know.
I
igSTO MAP 0600. ENTRY POINT A.
009
The
brightness should change smoothly
as
the control is turned from minimum to
maximum.
Can the brightness be changed as expected
by the brightness control?
(Ignore problems affecting BLUE only)
I
i~OTO
MAP 0300. ENTRY POINT A.
011
-If
a selector pen is
NOT installed take
the Y path now.
-Set the brightness control to center
position.
-Press the light pen tip (do not point it
at the screen).
White bars
appear
through all characters
in lines 2 and 3 of the test pattern.
The blue characters become BRIGHTER but
the red and green do not change.
-Set the brightness control back to an
acceptable level.
-Press the pen against the white ?SEL PEN
field in
line 2.
The field changes to >SEl PEN.
-Press the pen against
the-
blue >SEL PEN
field in line 3.
The field changes to ?SEL PEN.
-If )(-f
appears
in the indicator row,
press RESET key and retry.
Did all occur as expected?
Y N-
012
GO TO MAP 0800. ENTRY POINT DO.
3
B
04FEB81
MAP
0100-2
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