Sony XAV-AX150 Service Manual page 46

XAV-AX150
• IC Block Diagrams
– MAIN Board –
IC120 TCB501HQ (Z)
OFFSET
DET
1 2 3 4 5 6 7 8 9 10 11 12 13 14
IC160 LV56851UV-XH
OVP ALL OUTPUT OFF EXCEPT VDD
TSD ALL OUTPUT OFF
CTRL
1 2 3 4 5
IC200, 202 BD9876BEFJ-E2
LX 1
GND 2
CURRENT
SENSE AMP
Q
VC 3 S R
SOFT
CURRENT
START
COMPARATOR
ERROR
FB 4
AMP
1.0 V
46
15 16 17 18 19 20 21 22 23 24
OVP
VREG 5.1V
UVDET
OVDET
VREF 1.25V
OVP
BDET
TSD/
SYS_EN
TWARN
OVP
6 7 8 9 10 11
VREF REFERENCE
8
REGULATOR
7
UNDER
VOLTAGE
LOCK OUT
THERMAL
SHUTDOWN
SHUTDOWN
6
OSCILLATOR
5
300 kHz
H-SW
25
VDD
+
VREF
VDD
+
FILT
–
RESET
VDD
VDD
I2C-BUS
OVP
CTL
TSD
UV
OV
12 13 14 15
VCC
BST
EN
SYNC
Sony CONFIDENTIAL
For Authorized Servicer
SYS SET