Sony STR-DG910 Service Manual page 56

STR-DG910
Q Q
3 7 6 3 1 5 1 5 0
• IC Block Diagrams
IC2560 BD3842FS-FD2 (MAIN BOARD (1/4))
24 23 22 21
LOGIC
*
F-SW1:INPUT FUNCTION1
F-SW2:INPUT FUNCTION2
1 2 3 4
IC400 µPC2581V-S (MAIN BOARD (3/4))
IC500 µPC2581V-S (MAIN BOARD (3/4))
IC600 µPC2581V-S (MAIN BOARD (4/4)) T E
L 1 3 9 4 2 2 9 6 5 1 3
IC700 µPC2581V-S (MAIN BOARD (4/4))
BIAS CIRCUIT
PROTECTOR
PRE
PRE
REG DRIVE
DRIVE
DRIVE
DRIVE
2 3 4 5 6
1 7 8 9 10 11 12 13 14 15
IC1302 TC74ACT153F(EL) (DIGITAL BOARD (1/5))
DATA INPUTS
STROBE A OUTPUT
VCC 2G SELECT 2C3 2C2 2C1 2C0 2Y
16 15 14 13 12 11 10 9
2C3 2C2 2C1 2C0 2Y
2G
B B A A
w w w
B B A A
1G
1C3 1C2 1C1 1C0 1Y
1 2 3 4 5 6 7 8
STROBE B 1C3 1C2 1C1 1C0 OUTPUT GND
1G SELECT 1Y
DATA INPUTS
STR-DG910
20 19 18 17 16 15 14 13
5 6 7 8 9 10 11 12
IC1301 LC890561W (DIGITAL BOARD (1/5))
36 35 34 33 32 31 30 29 28
REGULATOR FS CALCULATION
PA,PB DETECT
CE 37
C-BIT DETECT
CLK 38
XSEL 39
MODE0 40
DATA SELECTOR
MODE1 41
DATA SELECTOR
DGND 42
DVDD 43
BUFFER RAM
DOSEL0 44
DOSEL1 45
DEMODULATION
&
LOCK DETECT
CKSEL0 46
CKSEL1 47
INPUT SELECTOR
XMODE 48
1 2 3 4 5 6
x a o
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IC1452 PCM1609APT (DIGITAL BOARD (2/5))
RST 37
SYSTEM
SCKI 38
CLOCK
SCKO 39
MANAGER
BCK 40
LRCK 41
TEST 42
SERIAL
VDD 43
INPUT
INTERFACE
DGND 44
DATA1 45
DATA2 46
DATA3 47
ZEROA 48 ZERO DETECT
1 2 3
Q Q
3 7 6
27 26 25
IC1603 PCM1803DBR (DIGITAL BOARD (2/5))
24 AUDIO
23 EMPHA
VINL 1
VINR 2
22 XIN
VERF1 3
VERF2 4
21 XOUT
20 XMCK
19 DVDD
18 DGND
17 XSTATE
16 DATAO
15 LRCK
14 BCK
PLL
13 CKOUT
VCC 5
AGND 6
PDWN 7
BYPAS 8
7 8 9 10 11 12
FSYNC 9
u 1 6 3
y
LRCK 10
56 56
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2 4
8 9 9
36 35 34 33 32 31 30 29 28 27 26 25
FUNCTION
CONTROL
INTERFACE
DAC LPF
DAC LPF
DAC LPF
4X/8X ENHANCED
OVER SAMPLING MULTI-
DAC LPF
DIGITAL LEVEL
FILTER DELTA-
WITH SIGMA
FUNCTION MODULE
CONTROLLER
DAC LPF
DAC LPF
DAC LPF
DAC LPF
4 5 6 7 8 9 10 11 12
3 1 5 1 5 0 8 9
5 th Order
Single-End
Delta-Sigma
/Differential
Modulator
Converter
× 1/64 (× 1/128)
Decimation
Filter
Reference
with
DC Cut Filter
Single-End
5 th Order
/Differential
Delta-Sigma
Converter
Modulator
Power Supply
Clock and Timing Control
m
c o
.
2
8 9 9
24 VCC3
23 AGND3
22 VCC4
21 AGND4
20 VOUT8
19 AGND6
18 VCC5
17 AGND5
16 VOUT7
15 VCOM
14 VOUT1
13 VOUT2
2 4 9 8 2 9 9
20 MODE1
19 MODE0
Serial
18 FMT1
Interface
17 FMT0
Mode/
Format
Control
16 OSR
15 SCKI
14 VDD
13 DGCD
12 DOUT
11 BCK