5. Software Control - Lightware Device Controller
HDMI-TPS-RX220AK – User's Manual
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Applied firmware package: v1.4.0 | LDC software: v2.4.0b3
5.6.
Diagnostic Tools
5.6.1.
Frame Detector
The ports can show detailed information about the signal like blanking intervals and active video resolution.
This feature is a good troubleshooter if compatibility problems occur during system installation. To access
this function, open the port properties window and click on
Frame detector
button.
Frame detector window
Lightware’s Frame Detector function works like a signal analyzer and makes possible to determine the exact
video format that is present on the port, thus helps to identify many problems. E.g. actual timing parameters
may differ from the expected and this may cause some displays to drop the picture.
Frame Detector measures detailed timings on the video signals just like a built-in oscilloscope, but it is
much more easy to use. Actual display area shows the active video size (light grey). Dark grey area of the
full frame is the blanking interval which can contain the info frames and embedded audio data for HDMI
signals. Shown values are measured actually on the signal and not retrieved only from the HDMI info frames.
#diagnostic #framedetector
5.6.2.
Cable Diagnostics
The cable diagnostics is a useful tool to determine any cable related issues in case of TPS connection.
The estimated cable length and the quality of the link are measured periodically and the diagnostic window
shows the values in real-time. If the green bars hit the first line in the middle they turn into red. It means
the number of the errors – during the extension – is higher than recommended. The link might be alive but
recovering of the received data is not guaranteed.
#cablediagnostics
INFO:
Each bar represents a differential line in the CATx cable. The inappropriate termination of the cable
usually causes high error rates. Check the cable terminations or change the cable.
Reference Values
Value
Explanation
1
-10
- 1
-9
Excellent image quality
1
-8
Minor error, not recognizable by eyes
1
-7
Sometimes recognizable flash on a special test pattern
1
-6
Small noise can be seen
1
-5
Easy to recognize image error
1
-4
Bad image quality
Above displayed “Video BER < 1
-10
” value means that on average there is 1 bad pixel after 10
10
pixels, which
means the number of the bit errors is about 1 pixel in every 80 seconds.
INFO:
You can find more details about maximum twisted pair cable distances in the