Incorrect Color - DEC VR297 User Manual

8
Troubleshooting

1.2.2 Incorrect Color

START
DISPLAY THE CIRCLE CROSSHATCH SCREEN
THE
SCREEN MUST
BE WHITE. IS THE
IMAGE MISSING ANY COLOR
OR IS IT SATURATED
BY A COLOR
SATURATION
BY A COLOR
PERFORM THE
A BOARD
ADJUSTMENTS (2.3)
IS
THE SCREEN
STILL SATURATED
BY A
COLOR
NO
STOP
SECTION NUMBERS ARE IN PARENTHESES.
MISSING
A COLOR VERIFY THAT THE PROBLEM IS NOT EXTERNAL
1. CHECK THE VIDEO CABLE FOR A GOOD CONNECTION
2. RUN THE GRAPHICS DIAGNOSTICS IN THE SYSTEM
3. DISPLAY THE COLOR BAR PATTERN
4. SWAP THE RED AND BLUE CABLES AND SEE IF
THE MISSING COLOR CHANGES
REPLACE THE VIDEO CABLE
WAS THE
PROBLEM EXTERNAL
TO THE
MONITOR
YES
REPLACE THE A BOARD (3.7)
PERFORM THE A BOARD
ADJUSTMENTS (2.3)
NO SCREEN STILL
SATURATED OR STILL
MISSING A
REPLACE THE WHOLE MONITOR
IF SO, THEN
YES
STOP
NO
IS THE
COLOR
YES