Sony AM-NX9 Service Manual page 40

AM-NX9
• IC Block Diagrams
IC301 TA2131FL (EL)
18 17 16 15 14 13
PW MT BST
BEEP
V REF 12 VREF
SW SW SW
11 LPF1
19
MT TC
VCC1 20
ADD
INB 21
BST NF1
10
BST1
INA 22
9 LPF2
BEEP PW PW
BST2
23 8 BST NF2
A B
OUTB
7 BST OUT
BEEP
24
OUTA
BST
AGC
1 2 3 4 5 6
IC501 SN761058AZQLR
56 55 54 53 52 51 50 49
AVCC
IX
1
ABCD
PS 2
EQ 3
A GND 4
OFC-C1 5
RF TPP/WPP TE
OFC-C2 6
VREF10 7
VC 8
RFO 9
VREF09 10
AVCC2 11 AVCC2
PD-NI
12
PD-I 13
PD-O 14
SIGNAL MONITOR
ADIP
15 16 17 18 19 20 21 22
48 47 46 45 44 43
PEAK/
OFTRK
T-ON
BOTM
42 FE
41 ABCD
40 RFI
FE
39 ASSY
38 CIG
37 EFMO
DGND
36
35 RESET
34 VGIN
33 SBUS
32 SCK
CPOUT
31
POWER
30 CP
SUPPLY
29 DVCC
23 24 25 26 27 28
IC601 XPC18A22AEPR2
42 41 40 39 38 37
OUTPUT SW
VC VG DC IN
VG
VB 43
CHARGE
MONITOR
HI-BRIDGE
X2/X4
BATM 44 PRE DRIVER
DC IN
VC
CONTROL
CHARGE
CHGSW 45
CONTROL
DC IN
RS 46
BATTERY
INP2 47 CHARGER
&
INM2 48
REGULATOR
RF2 49
DCIN 50 DC IN
CHGMON 51
DC IN
DC IN DC IN
SVREF 52
BANDGAP DETECT
GND 53
GAIN 54
CHG 55
DREG 56
IC651 XC6367A331MR
PHASE
VOUT 1
COMPENSATION
ERROR AMP PWM
COMPARATOR
VDD 2
+
+
–
–
PWM/PFM
CONTROLER
REFERENCE
VOLTAGE WITH
RAMP WAVE
CE 3
SOFT START/
GENERATOR/
CHIP ENABLE
OSC
40 40
36 35 34 33 32 31 30 29
VG3 VG2
VG VG2 VG3 VC2 VG
VG2
CHARGE
CHARGE
PUMP 2 PUMP 1
OUTPUT SW
VC2
VC
EFM VREF
PRE DRIVER BUFFER
CONTROL
VC
VC AMP
VG2 VC
PWM
VC
VG
SYSTEM
SET-UP DOWN
PRE DRIVER
SW
VIO
LEVEL
SHIFT
OUTPUT SW
VIO VC
1 2 3 4 5 6 7 8 9 10 11 12 13 14
BUFFER/
5 EXT
DRIVER
4 GND
28 C1H
27 C1L
26 VC2
25 VREF
24 CVREF
23 GND
22 DW BT
21 DW TP
20 RF1
19 INM1
18 INP1
17 DTC
16 VREC
15 VRECO2