Block Diagram - Power Supply Section - Sony D-EJ2000 Service Manual

D-EJ2000
5-3. Block Diagram – Power Supply Section –
PD
A
LD
B
SYNC
C
MSDTO
E
MSCK
D
Q404
SWITCH
XPOWLT 75
XWAKE
66
RESET
8
VCC1 1.9V
D801
CHARGE
80
LEDDISP
VCPU 1.9V
VCC3
VCC2
IC801 (3/3)
VIN
SYSTEM CONTROLLER
VIN/VD
VDSEL 74
AD CHGMNT 21
AD DCINMNT
27
AD BATMNT
22
EXTBATT 33
XSTAND ON
37
PA PC
97
76 LDOUT
77 LDIN
VLGO4
78
INM4
100
RF4
99
RF41
CHGSW
96
VOUT
SYNC INP1
5
RS1
DATA
8
VIN
CLOCK
7
LATCH RF41
9
RF4
WAKE
INM4
6
RSTB
APCREF
10
PAPC
IC601
59 VDRAM
IC602
VCC1 DELAY
61
INP2
RV401
INP2 INP3
70
VCPU
VCC1
VLGO2 VCC2
86
VCC3
VCPU
60 VCPU
L2L
VCC3
91
VCC2 WAKE
90
LATCH
INP3
D407 92
DATA
CLOCK
L2L
85
VIN
20 VDSW20
Q407
SWITCH
19 VDSW19
IC403 (2/2)
VD
SWITCH
5 6 15 INP7
3
14 VLG07
VIN 13 UPCKB7
Q408
SWITCH UPCK7
11
CHGMNT
72
IC405
VOL
3 4
DET
IC402 (3/3)
POWER CONTROL
CHARGING BATTERY BATM1
VOLTAGE DETECTOR
CIRCUIT CHGMNT
LINEAR
CONSTANT CURRENT,
CONSTANT VOLTAGE
CHARGING BATTERY
CHARGE CIRCUIT
SWITCHING
POWER
CIRCUIT
VLGO4
PRE-DRIVER
VLGO2
SWITCHING
POWER
CIRCUIT
INTERFACE
VG
VG
POWER L5
CIRCUIT
CLK
OR OSC
SAW
GEN.
Q405
EXTERNAL BATTERY
DETECT
14 14
Q412
SWITCH
VIN
VG
3
D408 L412
L5
2
BATM1
74
CHARGE
Q402
B+
SWITCH
VOUT
64
DCIN
D402
DCIN
65
Q401
RS1
55
CHARGE
SWITCH
D401
CHGSW
Q411
66
VIN
DETECT
VIN
82
INP1
Q410
56
SWITCH
DELAY
Q403, 409
62
DELAY
IC404
RF7 17 1
DELAY 4
3
DTC7 18
Q406
STAND ON
DETECT
RECHARGEABLE
BATTERY
NH-14WM
1PC. 1.2V
TH401
J402 (1/2)
EXT BATT
D404
J402 (2/2)
DC IN 3V
– +
J401
(CHARGING STAND)