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Chapter 4 Source ANALYSIS
57
4.2 Monitor
DDC stands for Display Data Channel, and refers to a standard for sending monitor information created by
VESA to sources, and is also used for sending and receiving HDCP data with the HDMI. The sending and
receiving of data is performed using the I
2
C bus protocol via the DDC line.
4.2.1 DDC Monitor
With the VA-1842, the data flowing on the DDC line between the input side of the VA-1842 and the HDMI source
device in receiver mode and the data flowing on the DDC line between the HDMI sink device and HDMI source
device in through mode can be displayed on the LCD of the unit front panel. The work of checking whether or
not a HDMI sink device and HDMI source device can correctly send and receive DDC commands can be
performed by using this function.
The display method is as follows.
Mouse operation
Right-
click → left-click ANALYZE → left-click DDC Monitor
Unit operation
Press the ANALYZE key.
→ press L CLICK over DDC Monitor
Press R CLICK
→ press L CLICK over ANALYZE
The DDC Monitor display items are as follows.
Displayed item
Description
[ Start]
Start Condition
[ Restart]
Restart Condition
[ Stop]
Stop Condition
Summary of Contents for VA-1842
Page 1: ...HDMI Protocol Analyzer VA 1842 Instruction Manual Ver 1 02 ...
Page 2: ......
Page 3: ...HDMI Protocol Analyzer VA 1842 Instruction Manual 2017 4 Ver 1 02 ASTRODESIGN Inc ...
Page 4: ......
Page 119: ...Chapter 4 Source ANALYSIS 103 ...
Page 120: ...104 ...
Page 124: ...108 Frame W Raster R Raster G Raster B Raster Window Random Color Bar ...
Page 146: ...130 SPD InfoFrame 0x83 Audio InfoFrame 0x84 MPEG InfoFrame 0x85 ...
Page 178: ...162 6 2 HDMI2 0 CTS Opens the items related to HDMI CTS ...
Page 185: ...Chapter 6 Compliance Test 169 6 3 CEC1 4b Pretest Opens the items related to CEC1 4b CTS ...
Page 250: ...234 6 4 HDCP1 4 Pretest Opens the items related to HDCP1 4 CTS ...
Page 261: ...Chapter 6 Compliance Test 245 6 5 HDCP2 2 Test Opens the items related to HDCP2 2 CTS ...
Page 283: ...267 8 Setup Sets the items in the following figure ...
Page 290: ...274 ...
Page 374: ...358 ...
Page 380: ...364 ...
Page 398: ...382 ...