Sony STR-DA4400ES Service Manual page 118

STR-DA4400ES
• IC Block Diagrams
– MAIN Board –
IC1499 MAX232DR
C1+ 1 16 VCC
V+ 2 15 GND
C1− 3 14 T1 OUT
C2+ 4 13 R1 IN
C2− 5 12 R1 OUT
V− 6 11 T1 IN
T2 OUT 7 10 T2 IN
R2 IN 8 9 R2 OUT
IC2390 TC9273CFG-012 (EL)
VSS 1 28 VDD
S1 2 27 S1
S2 3 26 S2
S3 4 25 S3
S4 5 24 S4
S5 6 23 S5
10BIT 10BIT
S6 7 LATCH LATCH 22 S6
CIRCUIT CIRCUIT
(L-CH) (R-CH)
S7 8 21 S7
S8 9 20 S8
S9 10 19 S9
S10 11 18 S10
S11 12 17 S11
GND 13
16 STB
CK 14 LEVEL SHIFT & SHIFT REGISTER
15 DATA
STR-DA4400ES
IC2090 TC9274CNG-016
VSS 1 42 VDD
S1 2 40 S1
S2 3 40 S2
S3 4 39 S3
S4 5 38 S4
S5 6 37 S5
S6 7 36 S6
S7 8 35 S7
S8 9 34 S8
S9 10 33 S9
18BIT 18BIT
LATCH LATCH
S10 11 32 S10
CIRCUIT CIRCUIT
(L-CH) (R-CH)
S11 12 31 S11
S12 13 30 S12
S13 14 29 S13
S14 15 28 S14
S15 16 27 S15
S16 17 26 S16
S17 18 25 S17
S18 19 24 S18
GND 20
23 STB
LEVEL SHIFT & SHIFT REGISTER
CK 21
22
DATA
IC2494 SI-3011ZD-TL
– +
+ –
+
OCP
–
1 2 3 4 5
– DIGITAL Board –
IC2207 TC74HC151AF (EL) IC2208 LC89057W-VF4A-E
D3 1 16 V
CC
D2 2 D2 D3 D4 15 D4
3 D1 D5 14
D1 D5
D0 4 D0 D6 13 D6
Y 5 Y D7 12 D7
XY 6 W A 11 A
RXOUT
7 10
OE S C B B
8 9
GND C
DGND
DVDD
RX5/V1
RX6/U1
DVDD
DGND
IC2210 SN74HC595ANS
16 15 14 13 12 11
VCC
SHIFT REGISTER
LATCH
1 2 3 4
PARALLEL DATA
OUTPUT
118 118
48 47 46 45 44 43 42 41 40
MODULATOR
MICROCONTROLLER
&
INTERFACE
PARALLEL PORT
1
RX0 2
C bit,
U bit
RX1 3
RX2 4
DATA
RX3 5
INPUT
DEMODULATOR
SELECTOR
DATA
&
6
SELECTOR
LOCK DETECT
7
RX4 8
9
10
PLL
11
CLOCK
12
SELECTOR
13 14 15 16 17 18 19 20
IC2211, 2216 TC74VHC393FT (EL)
14 13 12 11 10
VCC
Q Q
A B
A
CLEAR
10 9
CLEAR
A
Q Q Q
A B C
1 2 3 4 5
GND
5 6 7 8
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
9 8
Q Q
C D
Q
D
GND
6 7