D-EJ855
12
12
LINEAR
CONSTANT CURRENT,
CONSTANT VOLTAGE
CHARGING BATTERY
CHARGE CIRCUIT
CHARGING BATTERY
VOLTAGE DETECTOR
CIRCUIT
PRE-DRIVER
SWITCHING
POWER
CIRCUIT
CHARGE ON
SWITCH
Q403
SWITCHING
POWER
CIRCUIT
LINEAR
REGULATOR
INTERFACE
VG
POWER
CIRCUIT
CLK
OR OSC
45
46
43
65
42
CHGSW
RF1
INM1
RF41
RF41
RF4
RF4
VCC1
VCPU
VLGO3
VCC2
VCC1
INM4
INM4
APCREF
APCREF
DTC3
VREF
PAPC
PAPC
WAKE
LATCH
DATA
CLOCK
DATA
CLOCK
VLGO4
SYNC
14
13
6
5
3
12
16
51
15
56
61
50
STNG
57
7
79
1
73
58
11
SDTO
SCK
PD
LD
J
L
K
B
A
SYNC
DTC2
DTC3
INP2
INP2
RS1
DC IN
VIN
VCC3
VCPU
RF1
INM1
RS1
CHGSW
VIN
DCIN
VCC3
75
VCC2
74
DTC2
53
LATCH
WAKE
VLGO2
BATM1
CHGMNT
BATM2
CHGMNT
VLGO4
VLGO2
VLG3
VG
L5
9
8
VG
L5
BATM1
RSTB
75
XPOWLT
21
AD CHGMNT
27
AD DCINMNT
33
EXTBATT
22
AD BATMNT
80
LEDDISP
29
PPG
70
AGCPWN
SYSTEM CONTROLLER
IC801 (3/3)
VCC1
VCC3
49 VDRAM
10
NC
VCPU B+
VCC2
D801
CHARGE
66
XWAKE
8
RESET
7
BATVCC ON
76
CHGGND ON
D405
D403
RECHARGEABLE
BATTERY
NC-6WM
2PCS. 2.4V
–
+
J401
EXT BATT
DC IN 4.5V
VG
CHARGE
C
POWER CONTROL
IC403 (2/2)
VREF
SAW
GEN.
60
BATM2
59
B+ SWITCH
IC402
B+ SWITCH
Q416, 417
CHARGE
CONTROL
Q406, 415
RIPPLE
FILTER
Q408
B+ SWITCH
Q421, 422
48
CHARGE ON
SWITCH
Q412
EXTERNAL BATTERY
DETECT
Q407
2
SWITCHING
Q419
RF3
78
SWITCHING
Q420
B+ SWITCH
Q418
69
VIN B+
(Page 10)
(Page 10)
(Page 10)
(Page 10)
(Page 10)
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5-3.
BLOCK DIAGRAM – POWER SUPPLY Section –
Содержание CD Walkman D-EJ855
Страница 16: ...D EJ855 16 16 5 7 SCHEMATIC DIAGRAM MAIN Board 2 3 See page 13 for Waveform Page 15 Page 17 ...
Страница 17: ...D EJ855 17 17 IC801 T5AJ4 3HE0 5 8 SCHEMATIC DIAGRAM MAIN Board 3 3 See page 13 for Waveforms Page 16 Page 15 ...
Страница 37: ...D EJ855 5 5 SCHEMATIC DIAGRAM MAIN Board 2 3 Page 4 Page 6 ...
Страница 43: ...11 D EJ855 MEMO ...