LC2000/LC2000-IQ/LC4000/LC4000-IQ
Troubleshooting
Issue 1 Rev 6
Page 169
© 2015 SAM
B.3.5 Hardware or Software Fault?
If a fault occurs on more that one unit using the same software code, or on multiple channels
on the same unit, a software fault is the likely cause. If a fault occurs on a single channel, a
hardware fault could be the cause.
For assistance with locating a fault, see the Section B.3.6 Video Troubleshooting Flowchart.
B.3.6 Video Troubleshooting Flowchart
Important:
Always keep the software up to date. A software upgrade may clear a bug identified and
fixed in a later release. For information on how to upgrade your software, see “Software
Upgrade Procedure” on page 174.
Note:
The LC2000-IQ/LC4000-IQ unit has no CVBS inputs or outputs.
Select Internal Pattern
Fault is on
the input
side
Is fault still
present?
Is fault present on
SDI input?
Is fault present on
CVBS input?
Suspect
fiber RX
Suspect
CVBS
decoder
Fault has
been
isolated to
the output
side
Is fault present on
SDI output?
Is fault present on
CVBS output?
Suspect
fiber TX
module
Suspect
main
board fault
Is fault present on
HDMI output?
Suspect
CVBS
encoder
No
Yes
No
No
Yes
No
Yes
No
Yes
No
Yes
Yes
