Read Sony SRS-NWGU50 Service Manual online
SRS-NWGU50
SRS-NWGU50
14
14
• IC Block Diagrams
– MAIN Board –
IC101 SI-8008TM-TLS
IC102, 103 NJM2521V (TE2)
OVER
CURRENT
PROTECTOR
LATCH
&
DRIVER
OVER HEAT
PROTECTOR
REGULATOR
ON/OFF
SOFT
START
+
–
–
+
–
–
RESET
VREF
COMPARATOR
ERROR AMP
OSC
1
VIN
2
SW OUT
3
GND
4
ADJ
5
SOFT
ST
AR
T
VOUT
VCC
VIN3 (MUTE)
1
2
3
4
5
6
7
GND
BUFFER
VIN1
VIN2
SW1
SW2
8
BIAS
IC105 TK11133CSCL-G
IC106 TK11150CSCL-G
IC106 TK11150CSCL-G
CONTROL
CIRCUIT
BANDGAP
REFERENCE
+
–
OVER HEAT &
OVER CURRENT
PROTECTION
1
VCONT
3
NP
2
GND
4
VOUT
5
VIN
IC108 PCM1808PWR
DELTA-SIGMA
MODULATOR
DELTA-SIGMA
MODULATOR
ANTIALIAS
LOW-PASS FILTER
ANTIALIAS
LOW-PASS FILTER
AGND
VCC
2
3
3
VDD
DGND
4
5
5
LRCK 7
REFERENCE
u1/64
DECIMATION
FILTER
WITH
HIGH-PASS
FILTER
SERIAL
INTERFACE
&
MODE/FORMAT
CONTROL
FMT
12
VINR
14
VINL
13
MD1
11
MD0
10
DOUT
9
BCK
8
CLOCK & TIMING CONTROL
POWER
SUPPLY
SUPPLY
SCKI 6
VREF 1
IC109 TAS5706PAPR
SERIAL
AUDIO
PORT
7 ABQs
PDAP
MIXERS BASS
MANAGEMENT
MICROCONTROLLER
BASED SYSTEM
CONTROL
SAMPLE RATE
AUTODETECT
AND PLL
SERIAL
CONTROL
TERMINAL CONTROL
4th
ORDER
NOISE
SHAPER
AND
PWM
2 ABQ
HIGH
PRECISION
VOLUME
SRC
SDIN1
25
SDIN2
24
VR_DIG
27
DVSS
26
SCLK
23
LRCLK
22
MUTE
21
DVSS
20
OSC_RES
19
VREG_EN
18
PDN
17
SCL
29
SDA
28
STEST
31
HPSEL
30
TEST2
BYPASS
AGND
VCLAMP_CD
BST_D
AVCC
BST_A
VCLAMP_AB
BST_B
PVCC_B
PVCC_B
PVCC_B
OUT_B
PVCC_C
BST_C
OUT_C
PVCC_C
OUT_C
32
56
57
54
55
55
58
59
60
61
60
61
62
63
63
64
52
53
50
51
49
7 ABQs
R
SUB
L
BQ
DRC
DRC
LOUDNESS
BQ
2x HB
FET OUT
2x HB
FET OUT
CLICK AND POP
CONTROL
DVDD
33
MCLK
34
BKND_ERR
35
VALID
36
HPL_PWM
37
HPR_PWM
38
SUB_PWM-
39
SUB_PWM+
40
PVCC_D
41
PVCC_D
42
PGND_D
43
PGND_D
44
OUT_D
45
OUT_D
46
PGND_C
47
PGND_C
48
OUT_B
1
PGND_B
2
PGND_B
3
OUT_A
4
OUT_A
5
PGND_A
6
PGND_A
7
PVCC_A
8
PVCC_A
9
AVDD
10
AVSS
11
PLL_FLTM
12
PLL_FLTP
13
VR_ANA
14
DVDD
15
RESET
16
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