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Block Diagram - Kenwood DV-5700 Service Manual

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6-2 Block Diagram

ODC, TS
Decoder etc.
System Controller
(Microprocessor)
SDRAM
(16bit)
7. Digital Video Enhancer : FL12220 (X35, IC703)
7-1 Port Function
Port No.
Port Name
External OSD Interface
1~5
OSDC(0~4)
156~160
OSDC(5~9)
6
OSDSEL
144~153
OSDY(0~9)
Test outputs(Not shown on Block diagram)
7~10
TEST(03~06)
13~15
TEST(00~02)
Test inputs(Not shown on Block diagram)
19
TESTB
69,70,14
TEST (0~2)
Power Supply Connections(Not shown on Block diagram)
11,28,40,49,59
60,81,87,93,99
101,107, 113,119
VDD
121,127,131,135
141,154
12,29,41,50,79
80,82,88,94,100
102,108,114,120
VSS
122, 128,132,136
142,155
72
ISINK
68
AVDD
74
AVDD
Control Signals
16
SDA
17
SCL
18,20
MODE(0,1)
21~23
ADDR(0~2)
DV-5700/DVF-R9050/R9050-S
CIRCUIT DESCRIPTION
Stream
Interface
Decoder
Stream
Parser
Sub- picture
Decoder
Host
Interface
Interface
NTSC/PAL
Encoder
Memory
Interface
Interface
CD-DA
I/O
Multiplexed chroma signal is input on this bus.
I
(Connected to ground.)
-
External OSD select input. (Connected to ground.)
-
External OSD luma input. (Connected to ground.)
O
Test outputs. These pins should be left unconnected for normal operation.
I
Active low test input. This pin should be tied to VDD for normal operation.
I
Active high test inputs. This pin should all be tied to VSS for normal operation.
Digital power connections. Connect to the digital +3.3 volt power supply
-
and decouple to the digital ground plane.
-
Digital ground connections. Connect to the digital ground plane.
Analog current sink return for the video DAC circuits.
-
Connect to the analog ground plane.
-
Analog power connections for the clock PLL circuits.
-
Analog power connections for the video DAC circuits.
2
I
I
C compatible serial control bus data.
2
I/O
I
C compatible serial control bus clock.
2
-
I
C operating MODE(0,1).
The setting of ADDR(0~2) allow the I2C address of the device to be programmed
-
to prevent conflict with the other I2C devices in the system.
PLL
Video
and
Audio
Video
DAC
DAC
DAC
Audio
DAC
IEC958
Function
27MHz
REC656
(Digital Video Out)
Y/Y
Cb/Composite
Cr
C/C
Audio Out
(DAC for Audio)
15

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