Sony NAS-50HDE / SS-50HDE Service Manual ▷ View online
61
NAS-50HDE/SS-50HDE
IC701, IC751 CXD9774M
RESET 4
GND 1
GND 3
PWM BP 2
DREG RTN 5
GVDD 6
M3 7
M1 10
M2 11
DVDD 12
DREG 8
DGND 9
DGND 14
GND 16
GND 18
PWM
RECEIVER
TIMING
CONTROL
&
PROTECTION
SD 13
OTW 15
DIGITAL
REGULATOR
PROTECTION
LOGIC
OT
&
UVP
DVDD DREG
DREG
DGND
PWM AP 17
PWM
RECEIVER
DVDD DREG
DGND
DREG
GVDD
DREG
GATE
DRIVE
GVDD B
35
GVDD B
36
BST B
33
PVDD B
32
PVDD B
31
OUT B
30
OUT B
29
GND
28
GND
34
GATE
DRIVE
OCH
OCL
TIMING
CONTROL
&
PROTECTION
DREG
GATE
DRIVE
GVDD A
20
GVDD A
19
BST A
22
PVDD A
23
PVDD A
24
OUT A
25
OUT A
26
GND
27
GND
21
GATE
DRIVE
OCH
OCL
GVDD
GVDD
•
IC Block Diagrams
– D AMP Board –
IC703 CXD9788AR
S
P
Sampling Rate
Converter
Converter
DF1
DF2
Gain
Control
Filter
&
LOW
CUT
Filter
Serial Control
Liner
Interpolator
∆ ∑
Converter
XVSS
PWM
INIT/MUTE
Clock Generator
Clock Generator
(Secondary Clock System)
1
VSUBC
2
VSSR
VSSL
VSSL
VSSR
3
OUTR2
OUTL2
OUTR1
OUTL1
4
VDDR
DVDD
DVSS
VDDL
5
6
7
8
XOVSS
XOVDD
9
XFSOOUT
10 11
NSPMUTE
12
SOFTMUTE
13
PGMUTE
SCSHIFT
14
SCDT
15
SCLA
TCH
OVF FLAGR
OVF FLAGL
16
SFLAG
INIT
17
MCKSEL
18
LRCK
19
BCK
20
D
ATA
BFVDD
BFVSS
TEST
DVDD
XFSIIN
21
42
43
41 40 39 38 37
XFSOIN
36
XVDD
35
HPVDDL
34
HPOUTL2
33
HPVSSL
32
31
HPVDDR
30
HPOUTR1
HPOUTL1
29
28
HPVSSR
27
26
25
HPOUTR2
24
FSOI
23
FSOCKO
22
44
45
46
47
48
(Primary Clock System)
62
NAS-50HDE/SS-50HDE
IC1401 MM1566AVBE
– MOTHER Board –
75
Ω
Driver
2dB
75
Ω
Driver
2dB
4dB
LPF
CTRL
bias
150k
Ω
bias
150k
Ω
sync tip
clamp
sync tip
clamp
bias
150k
Ω
bias
6.75MHz
4dB
LPF
6.75MHz
4dB
LPF
6.75MHz
75
Ω
Driver
2dB
1
2
3
VCC1
6
YIN
5
MODE1
7
BIAS
8
GND1
4
VIN
CIN
XMUTE
16
15
14
VCC2
11
GND2
12
VSAG
10
YOUT
9
YSAG
13
VOUT
COUT
MODE2
IC1601 CDCVF2505PWR
1
IN
EDGE DETECT
TYPICAL < 10 MHz
8 OUT
PLL
CLOCK
DRIVER
7 3
6 VDD
CLOCK
DRIVER
5 2
CLOCK
DRIVER
2
1
CLOCK
DRIVER
3
0
4
GND
CLOCK
DRIVER
IC9402 PST3629UL
OUT
4
CD
3
+
–
VREF
VDD 2
GND 1
63
NAS-50HDE/SS-50HDE
IC1701 CY22392ZXC-386T
OSC
CONFIGRATION
FLASH
PLL1
11BIT P
8BIT Q
PLL2
11BIT P
8BIT Q
PLL3
11BIT P
8BIT Q
4x4
Crosspoint
Switch
Divider
/2,3 or 4
Divider
7 BIT
Divider
7 BIT
Divider
7 BIT
Divider
7 BIT
1
C
2
VDD
3
AG
4
XIN
5
XOUT
6
XBUF
7
D
8
E
16 OE
15 S2
15 S2
14 AVDD
13 S1
12 S0
12 S0
11 G
10 A
9
B
– MOTHER Board –
– LCD Board –
IC2507 TC7W74FU (TE12R)
6
CLR
7
PR
8
VCC
5
Q
R
S
Q
3
Q
2
D
4
GND
1
CK
Q
D
C
IC2505 MAX8596ZETA+TG069
1
2
3
4
5
6
7
8
IN
LX
PGND
OUT
CS
GND
CTRL
COMP
PWM
CONTROL
OSC
1MHz
1MHz
OVER VOLTAGE
PROTECT
1.25V CLAMP OR
TEMP DERATE CLAMP
121K
279K
100K
8.2ms
SHUTDOWN
170mV
+
+
+
+
gm
64
NAS-50HDE/SS-50HDE
– MAIN Board –
IC101 WM8776SEFT/RV
48
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
AIN1L
AIN2L
AIN3L
AIN4L
AIN5L
AIN1R
AIN2R
AIN3R
AIN4R
AIN5R
DACBCLK
DACMCLK
DIN
ADCLRC
ZFLAGR
ZFLAGL
ADCBCLK
ADCMCLK
DOUT
AVDD
ADCREFP
ADCREFGND
VMIDADC
AUXL
AUXR
DACREFP
DACREFN
VMIDDAC
VOUTR
VOUTL
NC
NC
AINOPL
AINVGL
AINVGR
AINOPR
AGND
ADCLRC
DGND
DVDD
MODE
CE
DI
CL
HPOUTL
HPOUTR
HPGND
HPVDD
INPUT MIXER
STEREO
ADC
ALC
AUDIO INTERFACE
AND
DIGITAL
FILTERS
CONTROL INTERFACE
LOW PASS FILTERS
STEREO
ADC
VMID
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