Sony TA-SA300WR Service Manual page 18

TA-SA300WR
• IC Block Diagrams
– WLK4 MAIN Board –
IC101 PST8435UL
GND 1
VREF
+
–
4
VDD 2 3
IC104 CXD9981TN
GVDD_B 1
UNDER
/OTW 2
VOLTAGE
4
PROTECTION
NC 3
INTERNAL PULLUP
NC 4
RESISTORS TO VREG
POWER
5
/SD ON
VREG
PROTECTION
RESET
AND
I/O LOGIC
TEMP.
SENSE
PWM_A
6
OVERLOAD
/RESET_AB 7
ISENSE
PROTECTION
PWM_B 8
OC_ADJ
9
GND
10
PWM
GATE
CTRT. TIMING
RCV.
DRIVE
AGND
11
12
VREG
M3 13
PWM
GATE
CTRT. TIMING
RCV.
DRIVE
14
M2
15
M1
PWM_C
16
PWM
GATE
CTRT. TIMING
RCV.
DRIVE
/RESET_CD 17
PWM_D 18
VREG
NC 19
NC
20
PWM
GATE
CTRT.
TIMING
RCV.
VREG DRIVE
VDD
21
GVDD_C
22
TA-SA300WR
IC103 TC74LCX74FT (EKJ)
14 13 12 11 10 9 8
VCC
PR
Q
D
CK Q
CLR
PR
D Q
Q
CK
CLR
OUT
GND
CD
1 2 3 4 5 6 7
4 44
43 BST_A
42 NC
41
40
39
BTL/P BTL-CONFIGURATION
PULLDOWN RESISTORS
38
37
BTL/P BTL-CONFIGURATION
PULLDOWN RESISTORS
36
35
34
33
32
31
BTL/P BTL-CONFIGURATION
PULLDOWN RESISTORS
30
29
BTL/P BTL-CONFIGURATION
PULLDOWN RESISTORS
28
27
26
25
24
23
IC105 CXD9843AR
XVSS 1
VSUBC 2
VSSR 3
OUTR2 4
VDDR 5
OUTR1 6
7
VSSR
VSSL 8
GVDD_A
OUTL2 9
10
VDDL
OUTL1 11
VSSL 12
PVDD_A
PVDD_A
OUT_A
GND_A
GND_B
IC106 MM3404A18URE
OUT_B
PVDD_B
BST_B
CE 1
BST_C
PVDD_C
OUT_C
GND_C
GND_D
GND 2
OUT_D
PVDD_D
PVDD_D
IC108 S-1170B33UC-OTSTFG
NC
BST_D
GVDD_D
ON/OFF 1
VSS 2
NC
3
18 18
48 47 46 45 44 43 42 41 40 39 38 37
CLOCK
GENERATOR
(SECONDARY)
PWM
LINER
GAIN
INTERPOLATOR
CONTROL
INIT/ SERIAL
MUTE CONTROLLER
13 14 15 16 17 18 19 20 21 22
IC109 SI-3010KM-TLS
4 VDD
BIAS
GND
VOLTAGE
–
REFERENCE
+
CURRENT
LIMIT 3 VOUT
VOUT
ADJ
5 VOUT
OVERCURRENT
PROTECTION
THERMAL
SHUTDOWN
ON/OFF
+
CONTROL
–
REFERENCE
VOLTAGE
4
VIN
CLOCK
GENERATOR 36 XFSIIN
(PRIMARY)
35 DVDD
34 TEST
33 BFVSS
32 BFVDD
31 DATA
FILTER & SAMPLING
LOW CUT RATE S g P 30 BCK
FILTER CONVERTER
29 LRCK
28 MCKSEL
27 INIT
26 SFLAG
25 OVFFLAGL
23 24
VC 1
VIN 2
3
TSD
–
+
REF
4
5