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Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
Blockschaltplan / Block Circuit Diagram – DVD-Monoboard
DVD-MONOBOARD DIGITAL PART
DIAGRAM
5
uP & DECODER PART
7503
TXD_BE
RXD_BE
S2B
CFR
4
SUR
TO /FROM
UART
MACE2
(DIAGRAM
2
)
B_V4
B_WCLK
B_DATA
I2S
B_BCLK
B_FLAG
FRONT END
6
B_SYNC
FROM
INTERFACE
HD61 DECODER
(DIAGRAM
3
)
HOST
MEMORY INTERFACE
RESETN
STB_CONT
DIAGRAM
4
MEMORY PART
4 - 7
4
UART
AUDIO
VIDEO
MPEG DECODER
DEMULTIPLEXER
SUBPICTURE
ST20
STi5505
SDRAM CONTROLLER
7401
7404
16Mb
16Mb
FLASH
SDRAM
AM29LV160BT
MT48LC1M16A1TG -7S
GDV 200
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
SERVICE
PAL_NTSC
PROGRAMMABLE
OSD
I/O
AUDIO
DECODER
VIDEO
ENCODER
I2C
CONTROLLER
7504
27 MHz
7505
7405
16Mb
SDRAM
MT48LC1M16A1TG-7S
GRUNDIG Service
4 - 8
Reference
– 1B............................4-17
Oscillograms...............4-43
–
2
.............................4-19
A/V-MUX Board ..........4-13
Keyboard Control ..4-21/23
– 1A............................4-15
DIAGRAM 6. VIDEO/AUDIO OUTPUT PART
7600
TXD_SER
RXD_SER
RTS_SER
CTS_SER
SERVICE
2
7604, 7607
2
SCART
SCART[0:1]
0/6/12V
MUTE
7608,7609,7610
MUTE
SCLK
7611
PCM_OUT0
PCM (3X)
PCM_CLK
3V3
LRCLK
5
DIG. OUT
SPDIF_OUT
5
5V
R_OUT
G_OUT
7612-7618
CVBS
B_OUT
C_OUT
RGB
CVBS_OUT
VIDEO
S-VHS
Y_OUT
6
4
FILTER
BUFFER
PCM__CLK
7616
ACLK
CLOCK
SYNTHESIZER
SEL_ACLK
MK2742
2
+3V3
+6Vstby
I2C
+12Vstby
SDA
2
-8Vstby
SCLK
PCMout1
PCMout2
SDA
HSYNC
SCLK
2
OPTION
+5Vstby
-8Vstby
+6Vstby
2
EEPROM
+12Vstby
ST24E32M6
SDA
STB_CONT
SCLK
2
GDV 200
DVD-Monoboard ........4-25
–
4
.............................4-35
–
1
.............................4-29
–
5
.............................4-37
–
2
.............................4-31
–
6
.............................4-39
–
3
.............................4-33
Power Supply ..........4-9/11
6
CONN.
1602
SERVICE
4
SERIAL
INTERFACE
CONN.
1603
DEEM[0:1]
0_6_12V
MUTE_AV
BCLK
DATA
ACLK
TO/FROM
WCLK
DIG_OUT
A/V-MUX
BOARD
R/C
G
B/CVBS
CVBS/Y
PAL_NTSC
+5V
-5V
CONN.
1604
Y - C
TO
A/V-MUX
BOARD
CONN.
1600
+3V3
+5V
POWER
SUPPLY
CONN.
1501
P50
TO/FROM
DISPLAY
4229_136
9936
GRUNDIG Service
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