Service – Grass Valley 8920ADC v.2.0.1A User Manual
Page 31
8920ADC Instruction Manual
31
Service
Service
The 8920ADC modules make extensive use of surface-mount technology
and programmed parts to achieve compact size and adherence to
demanding technical specifications. Circuit modules should not be ser-
viced in the field.
If your module is not operating correctly, proceed as follows:
•
Check frame and module power and signal present LEDs.
•
Check for presence and quality of input signals.
•
Verify that source equipment is operating correctly.
•
Check cable connections.
•
Check output connections for correct I/O mapping (correct input con-
nector is used for the corresponding channel output).
for the location of PWR LED and
proper LED indications.
If the module is still not operating correctly, replace it with a known good
spare and return the faulty module to a designated Grass Valley repair
depot. Call your Grass Valley representative for depot location.
Refer to the
at the front of this document for the
Grass Valley Customer Support Information number.