Sony STR-D760Z Service Manual page 40

5-11. IC BLOCK DIAGRAMS
• DOLBY SURROUND Section
IC301, 303 LC7822
1 30
IN 2 29 IN
28
3
OUT 4 27 OUT
5 26
IN 25 IN
6
7 24
OUT 8 23 OUT
9 22
IN IN IN
10 21
OUT 11 20 OUT
LEVEL SHIFT
12 19 VDD
VEE
CE 13 LATCH 18 RESET
DI
14 17 S
SHIFT RESISTOR
CL 15 16 VSS
IC501 uPC2581V
BIAS CIRCUIT
PROTECTOR
PRE PRE
REG DRIVE DRIVE
DRIVE DRIVE
1 2 3 4 5 6 7 8 9 10 11 12 13 14
IC502 TC9184P
16 15 14 13 12 11 10 9
1 2 3 4 5 6 7 8
IC406 LC7823
L1 1 30
R1
L2 2 29 R2
L COM 1 3 28
R COM 1
L3 4 27 R3
L4 5 26 R4
L COM 2 6 25 R COM 2
L5 7 24 R5
L6 8 23 R6
L COM 3 9 22
R COM 3
L7 10
21 R7
L COM 4 11 20 R COM 4
LEVEL SHIFTER
VEE 12 19
VDD
LATCH
CE 13 18 RES
17 S
DI 14
SHIFT
REGISTER
CL 15 16 V
SS
15
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IC401 M62460FP
80 79 78 77 76 75 74 73 72 71
NOISE
1 IREF VREF
NGC1
SEQUENCER
LOUT 2
ROUT 3
SELECTOR
CT 4
+
∑
–
COUT 5 VOL
AUTO
SERVO VCA
+ BALANCE
ST 6 ∑
–
–/+
L
7 VOL SELECTOR 1
SOUT
R
CENTER MODE
C
CONTROL
CMC 8
SMRO 9
SELECTOR 3
– +
SMRI 10
AGND 11
L+R L+R
MIC IN 12
2 2
SELECTOR 2
13
DVDD
–9.2dB
TEST S
TEST CNT 14
Normaiy GND
ATT
CNT
DATA 15 DATA
MCU
SCK 16 SCK
INTERFACE
MIC
REQ
REQ 17
16KSRAM
LO1 18
19
LO2
LO3 20
LOGIC
XIN 21
CLK
XOUT 22
DVSS 23
LPF A/D
24
AVSS
25 26 27 28 29 30 31 32 33 34
70 69 68 67 66 65
BPF BPF
64 RLC8
FULL WAVE
RLC3
63
RECTIFIER
L+R L–R
62 RLC7
61 RLC4
LOG
60 RLC1
DIFFERENCE
AMPLIFIER
RLC2
59
VCA
58
L RLC5
COMBINNING
C
NETWORKS 57 PSC4
R
S
56 PSC1
DUAL-TIME
CONSTANT PSC5
55
AND
THRESHOLD
54 PSC2
SWITCHES
PSC6
53
52 PSC3
DBC3
51
+9.2dB
MODIFIED
DBC2
B-TYPE 50
NR DECODER
49 DBC1
0dB
48 LPIN
+ –
47 DBIN
46 S.OUT
SFB
MOS
SU
45 FBIN SU
EC
44 FBIN EC
MIX
43 DELAY SIG OUT
42 DELAY SIG IN
D/A LPF
VOL 41 VOL OUT
35 36 37 38 39 40
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