Grass Valley Turbo iDDR Quick Start - Manual (Page 24)

24
Operator Tips
06 July 2005
If you have a problem
If you have trouble recording or playing, verify basic configuration using the following checklist.
Solving specific problems
The following table provides corrective action for some common record/play problems. Search the table for the
problem you are experiencing, then try the corrective action.
Verify these settings Control Mode
Front Panel Workstation
" Video Reference Standard (50Hz/59.9Hz) page 8 page 15
"
Video Record channel input selection page 8 page 15
"
Record channel widescreen mode enabled if video input is 16:9 page 8 page 15
"
Audio input selection (Analog or S/PDIF) page 8 page 15
"
Timecode source selection (LTC/Internal) page 8 page 15
"
Verify play channel DVI output video type selection. Selection must match
the display device. Recorded media is converted if needed to match the
selected play channel video output type. (See
page 18 .)
page 8 page 15
"
Verify play channel video output aspect ratio and conversion mode (bars,
crop, bars & crop) page 8 page 15
Problem Possible Cause Corrective Action
Play channel video output is
periodically unstable in E-to-E
mode. Video reference is not connected. If E-to-E mode is used, you must connect a video
reference signal.
The channel output is black in
E-to-E, but playback is fine. Loss of input signal. Verify that you have a valid input signal.
Audio level too high or too low Record or play channel audio level
adjusted too low.
1. Use the audio level in recorder to adjust audio
level. See “Recording a clip” on page 9 or page
17 .
2. Use audio level adjust in player to adjust audio
output level. See “Playing a clip” on page 12 or
page 18 .
Audio level indicators are not
displayed in clip thumbnail in
Record channel monitor. Wrong audio input selected, or
invalid audio input signal. Verify valid audio input, and audio input selection.
See “Recording a clip” on page 9 or page 17 .
Distorted audio or no audio Wrong incoming digital audio
coding format selected. Verify the input audio format is set correctly (AC-3
Dolby).
See “Recording a clip” on page 9 or page
17 . If the SPDIF input is used, verify that the input
material is not copy protected.
Compression artifacts are
present in the output. Video data rate setting is too low
for your program material. Select higher video data rate. See “Recording a
clip” on page 9 or page 17 .
Picture image is too soft or
colors are pastel in appearance. Too much noise reduction used on
video input. Reduce noise reduction used. See “Recording a
clip” on page 9 or page 17 .
Digital video display device
does not display properly. Wrong video output type selected
for the Play channel. Verify and select video output type required by the
display device (see display device manuals). If
component analog is used, verify the correct
component analog video format is selected.