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Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
Blockschaltplan Digitalplatte / Block Circuit Diagram Digital Board
B. uP & DECODER PART
CONN.
1210
7200
TXD_BE
RXD_BE
S2B
RTS_BE
4
CTS_BE
UART
B_V4
B_WCLK
B_DATA
I
2
S
B_BCLK
B_FLAG
FRONT END
6
B_SYNC
TO/FROM
INTERFACE
BASIC
+5V
ENGINE
+12Vstby
RES_BEN
HOST
ST20
MEMORY INTERFACE
RESETN
STB_CONT
OPTION
7100
7110
16Mb
DRAM
UPD4218160LE
A. MEMORY PART
4 - 7
4
UART
AUDIO
VIDEO
MPEG DECODER
DEMULTIPLEXER
SUBPICTURE
STi5505
SDRAM CONTROLLER
7102
7103
16Mb
8Mb
FLASH
SDRAM
AM29F800B
HYB39S16160T
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
SERVICE
PAL_NTSC
SCART[0:1]
PROGRAMMABLE
OSD
I/O
MUTE
SCLK
PCM_OUT0
PCM_CLK
LRCLK
AUDIO
SPDIF_OUT
DECODER
R_OUT
G_OUT
B_OUT
C_OUT
CVBS_OUT
VIDEO
Y_OUT
ENCODER
SDA
2
I
C
SCLK
CONTROLLER
27M_CLK
SEL_ACLK
7207
CLOCK
SYNTHESIZER
MK2742
7214
27 MHz
7104
16Mb
SDRAM
HYB39S16160T
4 - 8
7215
CONN.
TXD_SER
1203
RXD_SER
SERVICE
RTS_SER
4
CTS_SER
SERIAL
INTERFACE
SERVICE
CONN.
1208
2
DEEM[0:1]
7204, 7205
2
SCART
0_6_12V
0/6/12V
7206, 7220, 7221
MUTE_AV
MUTE
BCLK
7225
DATA
PCM (3X)
ACLK
TO/FROM
3V3
WCLK
5
DIG. OUT
5
DIG_OUT
A/V-MUX
BOARD
5V
7208 - 7213
CVBS
R/C
G
RGB
VIDEO
B/CVBS
S-VHS
6
4
CVBS/Y
FILTER
BUFFER
PAL_NTSC
+5V
-5V
CONN.
1206
2
Y - C
+3V3
2
I
C
+6Vstby
TO
+12Vstby
2
-8Vstby
A/V-MUX
SEL_VIR
BOARD
SEL_SPDIF
SDA
HSYNC
SCLK
2
OPTION
7202
ACLK
2
EEPROM
ST24E32M6
CONN.
1201
TO/FROM
SDA
STB_CONT
SCLK
2
DISPLAY
CONN.
1200
+3V3
POWER
+5V
SUPPLY
+5Vstby
-5V(-8Vstby)
+6Vstby
+12Vstby
C. VIDEO/AUDIO OUTPUT PART
9846
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