LC2000/LC2000-IQ/LC4000/LC4000-IQ
Troubleshooting
Issue 1 Rev 6
Page 168
© 2015 SAM
B.3.4 Composite Input Problems (LC2000/LC4000 Only)
If you are routing a composite signal via one of the CVBS decoders:
•
Check that you have a valid SD composite source. You can create a valid composite
source from any of the two or four channel products by routing an SD test pattern
through the CVBS encoder (if fitted) on the unused channel. To do this:
1.
On the front panel, press the CH SELECT button to select an unused processing
channel.
2
Press the OUTPUT Shortcut button.
3
Select Test Patterns and choose Ramp or Bars to create a suitable test pattern.
4
Press the SYTEM Shortcut button.
5
Select Output and route the appropriate channel through the chosen CVBS
encoder.
If you are having problems with composite inputs:
•
Check that the correct input format is selected for the chosen input connection(s). To
do this:
1.
On the front panel, press the SYTEM Shortcut button.
2
Select Input > CVBS Encoder (A–D) > Source.
3
Scroll until the appropriate radio button for the source is highlighted. For
example, select Input 1 for a PAL signal on CVBS In A1, or Y/C for a signal using
both CVBS in A1 and CVBS In A2.
4
Select Done.
Note:
Not applicable to LC2000-IQ/LC4000-IQ, the LC2000-IQ/LC4000-IQ unit has no CVBS
inputs or outputs.
Note:
When using the CVBS inputs or outputs, it is important to remember that they can be used
for single connection composite signals (such as PAL or NTSC) or for Separated Y/C
signals, which use both BNCs.
