Dsp Board - Sony STR-DG820 Service Manual

IC106 BA00BC0WFP-E2
VREF
–
DRIVER
+
THERMAL OVER CURRENT
SHUT DOWN
1 2 3
– DIGITAL AUDIO Board –
IC2208 LC89057W-VF4A-E
48 47 46 45 44
MODULATOR
&
PARALLEL PORT
RXOUT 1
RX0 2
RX1 3
RX2 4
RX3 5
INPUT
SELECTOR
DGND 6
DVDD 7
RX4 8
RX5/V1 9
RX6/U1 10
DVDD 11
DGND 12
IC2211 TC74VHC393FT (EL)
14 13 12 11 10 9
VCC
Q Q Q
A B C
A
CLEAR
CLEAR
A
Q Q Q Q
A B C D
1 2 3 4 5 6
VDD
PROTECT
4 5
43 42 41 40
MICROCONTROLLER
INTERFACE
C bit,
U bit
DATA
DEMODULATOR
DATA
&
SELECTOR
LOCK DETECT
PLL
CLOCK
SELECTOR
13 14 15 16 17 18 19 20
8
Q
D
GND
7
– DSP Board –
IC5015 SI-3011ZD-TL
–
+
+
–
1
39 38 37
36 RERR
35 INT
34 CKST
33 AUDIO/VO
32 EMPHA/UO
31 DGND
30 DVDD
29 XIN
28 XOUT
27 XMCK
1/N
26 DVDD
25 DGND
21 22 23 24
IC2212 TC74VHC157FT (EL)
SELECT 11 1
S
1A 2 1A
INPUT
1B 3 1B
4
OUTPUT 1Y 1Y
5
2A 2A
INPUT
2B 6 2B
OUTPUT 2Y 7 2Y
3Y
GND 8
STR-DG820
+
–
OCP
2 3 4 5
16
V
CC
G 15 STROBE
4A 14 4A
INPUT
13 4B
4B
11 12 4Y OUTPUT
4Y
3A
3A 11
INPUT
3B 10 3B
3Y
9 OUTPUT
51