Samsung DVD-812 Service Manual page 66

5-7 Video
5-7-1 Outline
ZIC1(A/V decoder with video encoder) diverges from the 27MHz crystal, then generates VHSYNC and HSYNC.
ZIC1(A/V decoder with video encoder) does RGB encoding,copy guard processing and D/A conversion of 8bit
video data internally inputted from video decoder block by MIC1 (Micom).
Video signal converted into analog signal is outputted via amplifier of analog part.
(Main Board)
ZIC1
A/V Decoder with
video encoder
ZiVA-4
MIC1
Main Micom
TMP95C265F
(Main Board)
ZIC1
A/V Decoder
ZiVA-4 with
Video Encoder
MIC1
Main Micom
TMP95C265F
Samsung Electronics
Video
data
Low Pass Filter
(6MHz)
Video
data
Low Pass Filter
(6MHz)
(SCART Jack)
Fig. 6-31 Video Output Block Diagram
(Jack Board)
CVBS_S
VIC1
Y/Pb
Amplifier
BA7660
C/Pr
CVBS/Y
VIC2
Amplifier
BA7660
(RCA Jack)
(Jack Board)
CVBS
VIC1
Amplifier
Y/B/U
BA7660
C/R/V
SCIC3
(14053)
CVBS_DVD
Switch
RGB_DVD
SCIC5
(14053)
Switch
L/R_DVD
SCIC1, 2
(14053)
Switch
Circuit Descriptions
CVBS_TV_IN
CVBS_TV_OUT
SCIC4
L/R_TV
(NJM2267)
RGB_TV
AMP
SCIC6
CVBS_VCR
(BA7660)
_IN
AMP
CVBS_VCR_IN
RGB_VCR
L/R_VCR
CVBS
Y
C
Y
Pr
Pb
CVBS
Y
C
5-21