Sony SA-WX9000F Service Manual page 24

SA-WX9000F/WXF9000
• IC Block Diagrams
– SK1 SUB MAIN Board –
IC8000 RT7272BGSP
VA
VCC
CURRENT
INTERNAL
OSCILLATOR
SENSE
REGULATOR
AMPLIFIER
SLOPE
SW 1 COMP
+
VA VCC
BOOT 2 FOLDBACK
CONTROL
SHUTDOWN
COMPARATOR
Q S
+
0.4V
+
UV
UV
COMPARATOR
+
EN 3
Q R
LOCKOUT
COMPARATOR
GND 4 CURRENT
COMPARATOR
+
SS
+ 0.8V
EA +
IC8002 MM3411A50URE
4 VDD
CE 1 BIAS
VOLTAGE
–
REFERENCE
+
CURRENT
LIMIT
3 VOUT
GND 2
IC8103 TAS5534DGGR-S
PWM_HPM_L 1
PWM_HPP_L 2
PWM_HPM_R 3
PWM_HPP_R 4
AVSS 5
PLL_FLTM 6
PLL_FLTP 7
VR_ANA 8
AVDD 9
ASEL_EMO2 10
MCLK 11
OSC_RES 12
POWER
DVSS2_CORE 13
SUPPLY
DVDD2_CORE 14
EMO1 15
RESET 16
HP_SEL 17 DEVICE
PDN 18 CONTROL
MUTE 19
I2C SERIAL
SDA 20
CONTROL
DIGITAL
SCL 21
INTERFACE
AUDIO
PROCESSOR
LRCLK 22
CLOCK, PLL,
SCLK 23
AND
SERIAL DATA
SDIN1 24
INTERFACE
SDIN2 25
SDIN3 26
SDIN4 27
VR_DIG 28
SA-WX9000F/WXF9000
IC8001 SI-3010KM-TLA
VC 1
VIN 2
8 VIN
GND 3
VCC
TSD
–
7 RLIM
+
1.2V
REF
VOUT 4
6 COMP
ADJ 5
1.7V
5 FB
IC8102 PST8429UL
GND 1
VREF
+
–
VDD 2
56 N.C.
55 N.C.
54 N.C.
53 N.C.
52 VR_RWM
51 AVSS_PWM
50 AVDD_PWM
49 PWM_P_4
48 PWM_M_4
47 N.C.
PWM
46 N.C.
SECTION
45 N.C.
44 N.C.
43 PWM_P_3
42 PWM_M_3
41 PWM_P_2
40 PWM_M_2
39 PWM_P_1
38 PWM_M_1
37 VALID
36 DVSS1_CORE
35 DVDD1_CORE
34 BKND_ERR
33 PSVC
32 TEST
31 LRCLKO
30 SCLKO
29 SDOUT
IC8104 TAS5614LA-S
GVDD_AB 1
VDD 2
OC_ADJ 3
RESET 4
PWM
INPUT_A 5
RECEIVER
PWM
INPUT_B 6
RECEIVER
C_START 7
DVDD
DVDD 8
GND 9
GND 10
GND 11
GND 12
AVDD
AVDD 13
PWM
INPUT_C 14
RECEIVER
PWM
INPUT_D 15
RECEIVER
FAULT 16
OTW 17
CLIP 18
M1 19
M2 20
M3 21
GVDD_CD 22
4 OUT
IC8105 PCM1808PWR
3 CD
DELTA-SIGMA
MODULATOR
VREF 1 REFERENCE
DELTA-SIGMA
MODULATOR
AGND 2
VCC 3 POWER
VDD 4 SUPPLY
DGND 5
SCKI 6
LRCK 7
– POWER Board –
IC901 BM1Q002FJ-E2
8
STARTER
+
13.0V/
8.7V
+
100mV
/200mV ZT
COMP. TRIGGER
DETECT
VREF LOGIC
ZT BLANKING MAX FREQUENCY
OUT CONTROL
BURST COMP.
+
0.50V
ZT ACSNS
+ COMP.
2.6V/2.8V
ZT OVP
+ COMP.
5.0V
1 2
24 24
44 BST_A
43 BST_B
42 GND
41 GND
ANALOG + PWM & TIMING GATE- 40 OUT_A
LOOP FILTER – CONTROL DRIVE 39 OUT_A
38 PVDD_AB
37 PVDD_AB
36 PVDD_AB
+
ANALOG PWM & TIMING GATE-
35 OUT_B
LOOP FILTER CONTROL DRIVE
–
34 GND
33 GND
ANALOG + PWM & TIMING GATE-
32 OUT_C
LOOP FILTER – CONTROL DRIVE
31 PVDD_CD
30 PVDD_CD
29 PVDD_CD
ANALOG + PWM & TIMING GATE- 28 OUT_D
LOOP FILTER – CONTROL DRIVE 27 OUT_D
26 GND
25 GND
24 BST_C
23 BST_D
STARTUP CB3C OVER-LOAD
CONTROL PROTECTION
TEMP
SENSE
PROTECTION
POWER-UP
&
RESET
I/O LOGIC
BST_X
GVDD_X
UVP
AVDD
DVDD
ANTIALIAS
14 VINR
LOW-PASS FILTER
ANTIALIAS
13 VINL
LOW-PASS FILTER
1/64 12 FMT
SERIAL
DECIMATION
11 MD1
INTERFACE
FILTER
& 10 MD0
WITH
MODE/FORMAT 9 DOUT
HIGH-PASS
CONTROL
8 BCK
FILTER
CLOCK & TIMING CONTROL
7 6 5
VCC
+
1SHOT UVLO 4.0V 12V CLAMP
13.5V/ VREF
REGULATOR CIRCUIT
8.2V
VCC
TIME
+
OVP
OUT
27.5V
PRE
S Q
DRIVER
R
DELAY STOP
TIMER TIMER
OLP
+
OSC
DCDC SOFT
VREF
COMP. START
0.50V
+
LEADING EDGE
CURRENT SENSE
BLANKING
3 4