5-23
Troubleshooting
Figure 5-10. 064808—Tally Control Module
1. Check the Operator’s Guide to verify correct usage of the function that appears broken.
2. Verify the function in question is supported by the current software release.
3. Is the +5V LEDs at front edge of module lit? If not, check fuse.
064808 -Tally Control Module
No Video at Output
Confirm correct
input assignment on
Configuration Menu.
Listen at Signal Processor
Frame for Tally relay to “click”
when different crosspoints
are selected.
No click.
Clicking audible but
no change at output
Remove Tally Module and verify
Tally Common fuses (F2 & F3)
with Ohm meter. Verify fuse is
firmly held in fuse clip.
Confirm DIP switches are
set correctly. See Option
Setup in Installation Section
of the Operator’s Guide.
Verify all socketed components
are fully seated on module,
Check external cables. Verify
cables are plugged into
appropriate connectors.
and check for bent pins.
See following page for diagnostics.
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 ...