Grass Valley 1200 Installation - Manual (Page 140)

5-8
Section 5 Ñ Diagnostics and Troubleshooting
Figure 5-3. Trouble TreeÑMiscellaneous
NOTE: After trying the steps outlined in the Trouble Trees if you are still having
problems contact Grass Valley for further instructions.
1. Check Mixer Module
1. Check AC fuses inside:
AC Input Connector
Frame Power Supply
2. Check for power on
power cord
3. Replace Power Supply
1. Check fuse on that
module
2. Verify that module
is plugged in
NO
NO
Power to
System?
YES
Power to
Module?
YES
Start
Bad Preset
Patterns, Good
Wipes?
1. Check Wipe Solid
Generator on
Keyer Module
YES
NO
NO
YES
ALL KEYS
Bad Wipes
& Preset
Patterns?
Bad Wipes,
Good Preset
Patterns?
NO
YES
1. Check Keyer Module
1. Check Key Processor
Submodule or Keyer
Module
1. Check Keyer Module
ONE KEY
End NO
Bad or
Missing
Keys? YES