Sony MZ-NF520D Service Manual page 46

MZ-NF520D
IC601 SC111292EPR2
VC VG DC IN
VB 43
CHARGE
MONITOR
X2/X4
BATM 44
DC IN
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
SVREF 52
BANDGAP
GND 53
GAIN 54
CHG 55
DREG 56
IC651 XC6367A331MR
VOUT 1
COMPENSATION
VDD 2
+
–
ERROR
AMP
VREF WITH
PWM/PFM
CE 3 SOFT START,
CONTROLLER
CE
46
42 41 40 39 38 37 36
VG
OUTPUT SW
VG
HI-BRIDGE
PRE DRIVER
VC
CONTROL
&
DC IN
DC IN
DETECT
1 2 3 4 5 6 7
PHASE
PWM
COMPARATOR
+
BUFFER,
DRIVER
–
RAMP WAVE
GENERATOR,
OSC
35 34 33 32 31
VG3
VG2 VG3
OUTPUT SW CHARGE
PUMP 2
VG3
EFM
PRE DRIVER
CONTROL
VG2 VC
PWM
VC
VG
SYSTEM
SET-UP DOWN
PRE DRIVER
VIO
LEVEL
SHIFT
OUTPUT SW
VIO VC
8 9 10 11
EXT
5
4 GND
30 29
VG2
VC2 VG
28
CHARGE
PUMP 1
27
VC2
VC
26
VREF
25
BUFFER
24
23
22
21
20
VC
19
VC AMP
18
17
16
SW
15
12 13 14
C1H
C1L
VC2
VREF
CVREF
GND
DW BT
DW TP
RF1
INM1
INP1
DTC
VREC
VRECO2