SRS-RA5000
89
Sony CONFIDENTIAL
For Authorized Servicer
• IC Block Diagrams
– MAIN-AMP Board –
IC207 74VHC4052AFT
16
13
15
11
9
10
2
3
6
7
8
A
B
3X
14
1X
12
0X
2X
X-COM
VCC
GND
GND
INH
Y-
C
O
M
2Y
C
I/O
O/I
C
I/O
O/I
C
I/O
O/I
C
I/O
O/I
C
O/I
I/O
C
O/I
I/O
C
O/I
I/O
C
O/I
I/O
1
0Y
4
5
1Y
3Y
IC212 BU15TD3WG-TR
2
GND
1
VIN
VOUT
5
VOLTAGE
REFERENCE
3
STBY
NC
4
STANDBY
OVER CURRENT
PROTECTION
THERMAL
SHUTDOWN
+
–
IC302 MM3411A50URE
IC303 MM3411A33URE
VOUT
3
CE 1
GND 2
VDD
4
+
–
VOLTAGE
REFERENCE
CURRENT
LIMIT
BIAS
IC305 RP115L181D-E2
IC311 RP115L331D-E2
2
4
VOUT
1
VOUT
VFB
3
LCON
5
GND
8
VDD
7
VDD
6
CE
VREF
CURRENT LIMIT
THERMAL SHUTDOWN
REVERCE
DETECTOR
IC307 RT7272BGSP
VIN
8
RLIM
7
COMP
6
FB
5
SW 1
BOOT
EN
2
3
GND 4
VA
VA VCC
+
+
+
+
+
+
Q
S
R
Q
VCC
VCC
0.8V
1.7V
1.2V
6
INTERNAL
REGULATOR
FOLDBACK
CONTROL
OSCILLATOR
SHUTDOWN
COMPARATOR
LOCKOUT
COMPARATOR
CURRENT
COMPARATOR
SLOPE
COMP
CURRENT
SENSE
AMPLIFIER
UV
COMPARATOR
+
0.4V
UV
EA
SS
IC533 TPS 2051C
1
CS
OUT
FLT 3
GND 2
5 IN
4 EN
OTSD
CURRENT
SENSE
CURRENT
LIMIT
THERMAL
SENSE
9-MS
DEGLITCH
DRIVER
UVLO
CHARGE
PUMP
DISABLED
+UVLO
SYS SET
2021/01/20 22:17:49 (GMT+09:00)