Power Section - Sony D-NE900 Service Manual

Q Q
– POWER SECTION –
3 7 6 3 1 5 1 5 0
PD
A
LD
B
SYNC
E
MSDTO
G
MSCK
F
Q405
SWITCH
PWRLAT_O 90
XWAKE_O 32
XRESET_I 8
VCC1
VCPU
T E
L 1 3 9 4 2 2 9 6 5 1 3
IC701
IC702 AVD
VCC4
VCC3
IC801 (3/3)
SYSTEM CONTROLLER
VCC2
VIN
VIN/VD
VDSEL 57
AD-CHGMNT
93
AD-DCINMNT 95
AD-BATMNT 92
w w w
AD-CHGSTMNT
94
EXTBAT_I 38
.
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PA PC
97
VLGO4
78
INM4
100
RF4
99
RF41
96
SYNC
5
DATA
8
CLOCK
7
LATCH
9
WAKE
6
RSTB
10
IC601
59 VDRAM
IC602
VCC1
61
RV401
INP2
70
VCPU
VLGO2
86
VCPU
60
VCC4IN
77
VCC4
76
WAKE
VCC3
91
LATCH
VCC2
90 DATA
INP3 CLOCK
D403 92
L2L
85
VIN
20 VDSW20
Q404
SWITCH
19 VDSW19
IC403 (2/2)
VD
SWITCH
5 6 15 INP7
3
14 VLG07
VIN 13 UPCKB7
Q403
SWITCH
11 UPCK7
CHGMNT
72
x a o u 1 6 3
y
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8
IC401 (3/3)
POWER CONTROL
CHARGING BATTERY BATM1
VOLTAGE DETECTOR
CHGSW
CIRCUIT
CHGMNT
RF1
LINEAR
VINDET
CONSTANT CURRENT,
RS1 CONSTANT VOLTAGE
CHARGING BATTERY
CHARGE CIRCUIT
VIN
RF41
SWITCHING
RF4
POWER
INM4
CIRCUIT
APCREF
PAPC
VLGO4
PRE-DRIVER
INP2
INP3
VCC1
VLGO2
SWITCHING
VCC2
POWER
VCC3
CIRCUIT
VCC4
VCC4IN
Q Q
3 7 6 3 1
VCPU
L2L
VG
VG
INTERFACE
POWER L5
CIRCUIT
CLK
OR OSC
SAW
GEN.
Q406
EXTERNAL BATTERY
c o
DETECT
.
17 17
2 4
9 9 8
VG
3
D404 L410
L5
2
BATM1
74
CHARGE
Q401
B+
SWITCH
RF1
58
DCIN
DCIN
65
5 1 5 0 8 9 2 4 9
Q402
RS1
55
CHARGE
SWITCH
R402
CHGSW
66
VIN
82
VINDET
98
m
D-NE900
2
9 9
VIN
RECHARGEABLE
BATTERY
NH-14WM
1PC. 1.2V
D402
J401
(EXT BATT)
D401
8 2 9 9
J402
(CHARGING STAND)