Sony D-E01 Service Manual page 21

IC401 MPC17A52FTA
72
SWITCHING
POWER
CIRCUIT 3
1
VLG3
RF21 2
REFERENCE
PAPC 3
APCREF
4
BAND GAP
VREF 5
REFERENCE
L4 6
SWITCHING
RF2 7
POWER
INM2 8
CIRCUIT 2
VG
9
VG
POWER CIRCUIT
VG
GND 10
VC
11
SYNC CLOCK
WAKEUP 12
VC
SYSTEM
CLOCK 13
CONTROL,
DATA 14
INPUT/OUTPUT
LATCHC 15
VC
FI3 16
RI3 17
18
HPI1
19 20 21
71 70 69 68 67 66
VC
PRE-
SUB
DRIVER
VG
VC
UP SIDE
PRE-DRIVER
VC
VC VG
SAW TOOTH
WAVEFORM
OCCURRENCE
VC
CIRCUIT
VC
D2 (H BRIDGE/HEADPHONE)
CONTROLLER
D3 (HPON)
VG
VC
PREDRIVER
22 23 24
65 64 63 62 61
VIN VIN
DOWN SIDE
PRE-DRIVER
VG
VG
DOWN SIDE
PRE-DRIVER
LOW VOLTAGE DETECTOR
VG
SWITCHING POWER
LINEAR REGULATOR
VC
LINEAR, CONSTANT
CURRENT, CONSTANT
VOLTAGE CHARGING
BATTERY CHARGE CIRCUIT
CONTROLLER
VC
PREDRIVER
25 26 27 28 29 30 31
– 29 –
60 59 58 57 56 55
CHARGING BATTERY
VOLTAGE DETECTOR
CIRCUIT
VC DCIN VG
UP SIDE
PRE-DRIVER
VG
54
53
52
51
50
VC
VC VG
CIRCUIT 1
49
VIN 48
47
46
45
DCIN
44
43
42
41
DCIN
40
39
38
37
D1 (DRV MUTE)
VG
32 33 34 35 36
RF1
INM1
DTC1D
DTC2D
MODE2
MODE1
RSTB
VCP
VC
DCIN
RF4
INM4
RS
CHGSW
RI2
FI2
RI1
FI1