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Table 5-1. Troubleshooting Flow Diagram Index
Apparent Failure
Troubleshooting
Flow Diagram
GENERAL
No raster present
>
5-1A
No raster present
5-1B
OFF LINE
Cursor either absent, multiple cursors, cursor not in home position or
screen filled with video blocks
5-2A
No character displayed when written, non cursor advance
5-2B
Wrong character displayed
5-2C
No escape functions
5-2D
No control functions
5-2E
ON LINE
No data being transmitted
5-3A
Transmits invalid data
5-3B
No reception
5-3C
Receives invalid data and/or improper parity
5-3D
DISPLAY
All displayed characters out of focus
5-4A
Rolling display
5-4B
Display too tall/short for screen size
5-40
Height of displayed characters uneven
5-4D
Display too wide/narrow for screen size
5-4E
Display not centered
5-4F
Tilted display
5-4G
Others
A.
Single vertical line
B.
Physical damage
C.
Dot in center of screen
D.
Uneven intensity/focus
E.
Burned phosphor
F.
Uneven display dimensions
G.
Excessive H.V. Arcing
5-4 H
5-3
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