Reference Information
Samsung Electronics
2-31
2. NTSC/PAL digital encoder(STV0119)
A/V decoder receives 8 bit digital video signal(VDATA[7..0]) of ITU-R656 format, HSYMC and VSYNC from
VIC1(CL6120P). When CR/CB/Y signal muxed ITU-R656 format is inputted, first demuxing is performed to
release the format. The demuxed signal obtains each RGB/Y/C signal via RGB encoding, uminance processing
and chroma processing. At that time, a signal transformation and addition are made by copy guard processing
and obstruct the normal signal copy.
The composite signal is formed by addition of luminance and chrominance signal among them. The above
signals select RGB or Y/C/CVBS by means of switch and are outputted out of chip through DAC.
Fig. 2-51 VIC3(STVO119) internal block diagram
3. Amplifier
VQ2, VQ8, VQ14 and VQ18 peripheral circuits are amplifer parts to set the video signal outputted from
STV0119 to rated output level. VR57 is load resistance demanded by STV0119 and the gain is determined by
resistance ratio interfaced with collector and emitted of each transistor.
Fig. 2-52
Demultiplexer
9-bit DAC
9-bit DAC
9-bit DAC
RGB Encoding
CR-CB
Luminance
Processing
MACROVISION
7.0.1/6.1
Cloed Captions
CGMS
Chrominance
Processing
Y
CTRL+CFG
register
CSI2C
Trap
VDATA
[7:0]
2~9
VSYNC
HSYNC
MRST
27M
28
1
25
24
11
17
16
CVBS
VR_CVBS
IREF(CVBS)
20
19
18
17
16
R/Y
G/C
B/CVBS
VR_RGB
IREF(RGB)
+5A
VR50
VQ18
C1623
+5A
VR51
VR57
VR56/VR61
Video input
Video output
Summary of Contents for DVD-905
Page 5: ...Precautions 1 4 Samsung Electronics MEMO ...
Page 7: ...Product Specifications 3 2 Samsung Electronics MEMO ...
Page 87: ...Thoubleshooting 5 26 Samsung Electronics MEMO ...
Page 93: ...Exploded View and Parts List 6 6 Samsung Electronics 6 3 Remote Control ...
Page 121: ...Electrical Parts List 7 28 Samsung Electronics MEMO ...
Page 123: ...Block Diagrams 8 2 Samsung Electronics MEMO ...
Page 124: ...Samsung Electronics 10 1 10 Wiring Diagram ...
Page 125: ...Wiring Diagrams 10 2 Samsung Electronics MEMO ...
Page 127: ...Schematic Diagrams 11 2 Samsung Electronics 11 1 SMPS ...
Page 128: ...Schematic Diagrams Samsung Electronics 11 3 11 2 FRONT ...
Page 129: ...Schematic Diagrams 11 4 Samsung Electronics 11 3 MICOM ...
Page 131: ...Schematic Diagrams 11 6 Samsung Electronics 11 5 VIDEO 1 2 3 4 5 7 8 9 10 6 11 12 13 14 15 16 ...
Page 133: ...Schematic Diagrams 11 8 Samsung Electronics 11 7 AUDIO 2 ...
Page 134: ...Schematic Diagrams Samsung Electronics 11 9 11 8 DATA PROCESSOR ...
Page 135: ...Schematic Diagrams 11 10 Samsung Electronics 11 9 A V DECORDER ...
Page 136: ...Schematic Diagrams Samsung Electronics 11 11 11 10 PICK UP DECK ...