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Troubleshooting
Table 5-3. Common Video and Timing Problems
VIDEO OR TIMING PROBLEM
CAUSE and MODULE NUMBER/NAME
CELL#
Snow (no video)
Improper deserializing on Serial Input Module (064820)
No input connected - check Map Inputs in Config menu
Magenta video
Open Video lines
Video lines are high
Check for unplugged module
Dark green video
Video lines are grounded
Video horizontally displaced
Sync Generator Module
A9
Vertical bars on screen
Sync Generator Module
Video source outside of autotiming range
Streaks or sparkles in video
Noise in Serial Input
Banding on soft edges
Ringing on key edges
Large color errors (color bars totally off)
Cositing error in video
Timing error
Video breaks up with multiple horizontal
lines on externally referenced monitor
Sync Generator Module (064801)
Check external analog reference is present at J
A9
Summary of Contents for Grass Valley 4000
Page 3: ...iii Tektronix Grass Valley Products P O Box 1114 Grass Valley CA 95945 916 478 3800 ...
Page 4: ...iv Tektronix Grass Valley Products P O Box 1114 Grass Valley CA 95945 916 478 3800 ...
Page 34: ...1 20 Section 1 System Overview ...
Page 138: ...2 104 Section 2 Installation ...
Page 196: ...3 58 Section 3 Functional Description ...
Page 286: ...Index 6 Index ...