Inhaltsverzeichnis
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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
ST20
MEMORY INTERFACE
RESETN
STB_CONT
DIAGRAM
4
MEMORY PART
4 - 7
GDV Modul 1
4
UART
AUDIO
VIDEO
MPEG DECODER
DEMULTIPLEXER
SUBPICTURE
STi5505
SDRAM CONTROLLER
7401
7404
16Mb
16Mb
FLASH
SDRAM
AM29LV160BT
MT48LC1M16A1TG -7S
GRUNDIG Service
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
SERVICE
PAL_NTSC
SCART[0:1]
PROGRAMMABLE
OSD
MUTE
I/O
SCLK
PCM_OUT0
PCM_CLK
LRCLK
AUDIO
SPDIF_OUT
DECODER
R_OUT
G_OUT
B_OUT
C_OUT
CVBS_OUT
VIDEO
Y_OUT
ENCODER
SEL_ACLK
SDA
I2C
SCLK
CONTROLLER
7504
27 MHz
7505
EEPROM
ST24E32M6
7405
16Mb
SDRAM
MT48LC1M16A1TG-7S
4 - 8
Reference
–
1B
......................4-17
DVD-Monoboard...4-23
Oscillograms .........4-41
–
2A
......................4-19
– 1........................4-27
A/V-MUX Board ....4-13
–
2B
......................4-21
– 2........................4-29
–
1A
......................4-15
Eject Board ...........4-22
– 3........................4-31
DIAGRAM 6. VIDEO/AUDIO OUTPUT PART
6
7600
CONN.
TXD_SER
1602
RXD_SER
SERVICE
RTS_SER
4
CTS_SER
SERIAL
INTERFACE
SERVICE
CONN.
1603
2
DEEM[0:1]
7604, 7607
2
SCART
0_6_12V
0/6/12V
7608,7609,7610
MUTE_AV
MUTE
BCLK
7611
DATA
PCM (3X)
ACLK
TO/FROM
3V3
WCLK
5
DIG. OUT
5
DIG_OUT
A/V-MUX
BOARD
5V
CVBS
7612-7618
R/C
RGB
G
B/CVBS
VIDEO
S-VHS
6
4
CVBS/Y
FILTER
BUFFER
PAL_NTSC
PCM__CLK
7616
+5V
ACLK
-5V
CLOCK
SYNTHESIZER
MK2742
CONN.
1604
2
Y - C
+3V3
+6Vstby
I2C
TO
+12Vstby
2
-8Vstby
A/V-MUX
PCMout1
BOARD
PCMout2
SDA
HSYNC
SCLK
2
OPTION
CONN.
1600
+3V3
+5V
POWER
+5Vstby
SUPPLY
-8Vstby
+6Vstby
2
+12Vstby
CONN.
1501
P50
TO/FROM
SDA
STB_CONT
SCLK
2
DISPLAY
GDV Modul 1
– 4........................4-33
– 5........................4-35
– 6........................4-37
Power Supply.....4-9/11
4229_136
9936
GRUNDIG Service
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