Sony KV-32LS65AUS (serv.man4) Service Manual ▷ View online
F
igure 2.5
Overvoltage Protection
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Figure 2.6
Overcurrent Protection
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Chapter 3 Video Processing Circuit
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3.1 VSP9407 Features
• Integrated Video Matrix switch
– Up to 7 CVBS inputs and up to 2 Y/C inputs
– Up to three CVBS outputs (even Y/C input)
– Up to three CVBS outputs (even Y/C input)
• Multi-Standard colour decoder with 4H COMB FILTER
– PAL/NTSC/SECAM -> Automatic recognition of chroma standard
– 2 Colour Decoder: Main Channel + Picture in Picture
– 2D COMB FILTER in the Main Channel.
– 2 Colour Decoder: Main Channel + Picture in Picture
– 2D COMB FILTER in the Main Channel.
• Detection embedded circuits:
– Global motion and global still detection
– Film mode and phase detection (PAL, NTSC; 2-2, 3-2 pull down)
–Measurement of the noise level during the vertical retrace
– Film mode and phase detection (PAL, NTSC; 2-2, 3-2 pull down)
–Measurement of the noise level during the vertical retrace
(blanking) for both channels
– Detection of letter box formats
• Noise reduction:
– Automatic measurement of the noise level
– Motion adaptive temporal noise reduction
– Intelligent Frame-based temporal noise reduction for luminance
– Motion adaptive temporal noise reduction
– Intelligent Frame-based temporal noise reduction for luminance
and chrominance, depending on both noise measured and motion
detected pixel by pixel
detected pixel by pixel
– Separate motion detection and noise measurement in both Master
Channel (Main Picture) and Slave Channel (PIP)
• Scan-rate-conversion:
– Motion adaptive frame based 100/120Hz interlaced scan
conversion.
– Special treatment for film material (‘Inverse 3-2 pull down’)
– Large area flicker and line flicker reduction.
– Simple Interlaced Modes (100/120Hz):
– Large area flicker and line flicker reduction.
– Simple Interlaced Modes (100/120Hz):
a) ABAB, if still picture (avoiding line flicker)
b) AA’B’B, if moving picture (avoiding artefacts)
c) AAAA or BBBB, for Teletext (avoiding line flicker)
d) Sharpness improvement
b) AA’B’B, if moving picture (avoiding artefacts)
c) AAAA or BBBB, for Teletext (avoiding line flicker)
d) Sharpness improvement
– Digital colour transition improvement (DCTI)
– Digital luminance transition improvement (DLTI)
– Adaptive horizontal and vertical PEAKING (luminance)
– Digital luminance transition improvement (DLTI)
– Adaptive horizontal and vertical PEAKING (luminance)
• Three D/A converters:
– 9 bit amplitude resolution for Y, -(R-Y), -(B-Y) output
Figure 3.2 shows the block diagram of VSP9407 while Figure 3.3
shows its pinning diagram.
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