Hitachi DVPF3E Wartungshandbuch Seite 92

6-7 Digital Signal Process Block Diagram
IC102 (SDRAM)
24
27
SDRAM ADDRESS(0-10)
60
66
SDRAM
2
13
31
SDRAM DATA(0-31)
56
74
85
CN201
C 6
D 7
A 8
DETECTOR
B 5
F 10
E 2
CD/DVD 9
CN201 Q253,Q254
CD-LD 12 AMP
DVD-LD 14 AMP
Q251,Q252
PD-MONI 13
GND(DVD-PD) 15
GND(CD-PD) 16
GND(LD) 11
1 3
CD DVD
6
4
IC201
(SW)
PICK-UP
UNIT
DVD MAIN CBA
IC101 (MICRO CONTROLLER)
210
SDRAM ADDRESS(0-10)
235
EXTERNAL
2
MEMORY
I/F
13
DECODER
184
ECC
I/F
SDRAM DATA(0-31)
205
247
256
124
125
122
DMA
123
RF
128 SIGNAL DVD/CD
FORMATTER
129 PROCESS
CIRCUIT
126
127
BCU
131
130
INST.
ROM
135 32BIT
CPU
133
DATA
132
ROM
134
INTERRUPT WATCH DOG
TIMER
CONTROLLER TIMER
78 CD/DVD
DSP
DECODER
STREAM
I/F
PIXEL
OPERATION
I/O
PROCESSOR
UMAC
SERIAL
READ CPU
GENERAL
MEMORY I/F
I/O
INTERRUPT
CONTROLLER
TIMER
WATCH DOG
TIMER
CPU
I/F
BCU
DEBUG
EXT ADT (0-15), EXT ADR (16-19)
EXT ADT (0-15), EXT ADR (16-19)
IC105 (LATCH)
2
EXT ADT (0-7)
9
IC104 (LATCH)
2
EXT ADT (8-15)
9
DATA(VIDEO/AUDIO) SIGNAL DVD VIDEO SIGNAL
DATA
ROM
INST.
ROM
DATA
ROM
INST.
ROM
DATA
ROM
INST.
ROM
AUDIO
I/F
VIDEO NTSC/PAL
I/F ENCODER
32BIT CPU
INST DATA
CACHE CACHE
EXT ADT (0-15)
12
D TYPE
EXT ADR (0-7)
LATCH
19
EXT ADR (16-19)
12
D TYPE
EXT ADR (8-15) EXT ADR (0-15)
LATCH
19
DATA(AUDIO) SIGNAL
SPDIF
TO DVD
181
PCM-BCK
VIDEO
175
/AUDIO
PCM-DATA0
176
BLOCK
PCM-LRCLK
174
DIAGRAM
Y VIDEO-Y
D/A 163
VIDEO-C
C
D/A 164
TO DVD
VIDEO
VIDEO-R
R
/AUDIO
D/A 161
BLOCK
DIAGRAM
G VIDEO-G
D/A 158
B VIDEO-B
D/A 160
IC103 (FLASH ROM)
29
36
38
45
FLASH
ROM
1
9
16
25
48
35