I/o board unit problems – Grass Valley T2 Classic iDDR SP2 User Manual
Page 45
June 11, 2010
T2 Maintenance Manual
45
I/O board unit problems
I/O board unit problems
To test the I/O board unit, do the following:
1. Configure an output (P1/P2 channel) and input (R1 channel) to the same video and
audio type.
2. Load a correct clip to P1 or P2 channel.
3. Start the loop play of this clip.
4. Connect (loop) the configured output channel of the loop play directly to the
configured input.
• So this for both video and audio. This provides a verified good signal to the
inputs.
5. Record a short clip.
6. Verify the I/O board unit’s recording functionality as follows:
(1) Check the thumbnail of the recording clip.
(2) Listen to the clip’s audio with headphones from the front panel headphone output.
7. Using the other play channel, play back the clip.
8. Verify the I/O board unit’s play out functionality as follows:
(1) Check the video on a verified good output device.
(2) Listen to the audio output.
9. Repeat this procedure for each video and audio type.
If you get the expected results, the I/O board unit is good and any problems you are
experiencing are due to some other cause.
If you get faulty results it indicates a problem with the I/O board unit. Investigate the
problem further as described in the following table. If the problem persists, contact
Grass Valley Support.
Problem
Possible Causes
Corrective Actions
A message "Board not
found" appears in the
preview area.
The device driver is not
working properly.
Restore default settings using the Recovery
Software DVD. Refer to