GE Voluson 730Pro, Service Manual

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GE M
EDICAL
S
YSTEMS
- K
RETZTECHNIK
RAFT V
OLUSON
® 730P
RO
/ 730P
RO
V (BT´04)
D
IRECTION
KTI105947, R
EVISION
2 S
ERVICE
M
ANUAL
5-14 Section 5-2 - General Information
5-2-4-5 CFM-Mode (Color Flow Mode)
1.) CRS
- PRF-generator; see: 5-2-4-1 B-Mode
- After DC-cancelling the signal is mixed with RX-Frequency and brought to LF-Spectrum,
where the LowPassFilter cuts HF.
Mixer and Magnitude-Calculator arrange Complex Demodulation.
2.) CPR
see: 5-2-4-1 B-Mode
3.) CKV - DMA section
see: 5-2-4-1 B-Mode
4.) CKV - Video section
see: 5-2-4-1 B-Mode
5-2-4-6 3D-Mode (Freezes after 1 volume sweep)
see: 5-2-4-1 B-Mode
5-2-4-7 Real Time 4D-Mode (nonstop volume rendering)
see: 5-2-4-1 B-Mode
5-2-4-8 XBeam CRI-Mode (CrossBeam Compound Resolution Imaging)*
see: 5-2-4-1 B-Mode
5-2-4-9 Extern-Video-Mode (display Video from Video-Recorder)
1.) CRS
Not used for Signal-Processing
2.) CPR
Not used for Signal-Processing
3.) CKV - DMA section
Not used for Signal-Processing
4.) CKV - Video section
Analog input from an external video source (YC or CVBS) is converted to a digital RGB data stream
by a video decoder. It is mixed with the AGP DVI video output from PC in an overlay unit (Chroma
keying mechanism).
Generation of analog VGA signals for the monitor and standard video timing outputs follows this
block.