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8910ADA-M/ST/SR — Instruction Manual
Service
Service
The 8910ADA 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 except to change fuses unless directed otherwise by Cus-
tomer Service.
If your module is not operating correctly, proceed as follows:
•
Check frame and module power and signal present LEDs.
•
Verify power at the voltage testpoints (see
) and
check Fuses F1 and F2 if no voltage is detected.
•
Check for presence and quality of input signals.
•
Verify that source equipment is operating correctly.
•
Check cable connections, especially when using the hard-wired cus-
tomer-supplied potentiometers for the 8910ADA-SR.
•
Check output connections for correct I/O mapping (correct input con-
nector is used for the corresponding channel output).
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 Service contact number in your region.
