Revision:1.0(2023-01-12)
44
Function description:
• The USB signals come from the PC module, always with three output USB 3.0 ports and one
Type-C port. Only the first USB 3.0 port from top down in the rear of the main unit takes effect
during BIOS startup.
2.3.3 Video Extension Scheme
22..33..33..11 Video Extension Scheme
Figure2–3 Video extension block diagram
Function description: The PC module outputs two channels of HDMI signals through DDI1 and
DDI2. The two channels of HDMI signals are copied for output and the CPU BIOS has been
configured. The main display signal is directly output through the DDI2 port of the CPU module,
while the user HDMI signal is output by the FPGA, requiring adaptive output of the resolutions
1920x1080, 1280x1024, 1280x720, and 1024x768. To implement scaler processing on HDMI
video signal, an external DDR needs to be provided to support scaler.
Diagnostic Ultrasound System
Service Manual
2 Product Knowledge
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