Block Diagram - Power Section - Sony ICD-CX50 Service Manual

ICD-CX50
4-3. BLOCK DIAGRAM – POWER SECTION –
D22201
CHG
SYSTEM CONTROLLER
S22206,22208,22213
7 P54/AN4
FUNCTION KEY
Q5401,5402
D5401
KEY 61 P42/INT22/SO2/SDA
INTERRUPT
S22202-22204,S5417
8
P55/AN5
FUNCTION KEY
RED
31 P21/PPG01
D22202
REC/PLAY
GREEN
30 P22/PPG02
ON
S22201
28
P24
V.UP
OFF
ICD-CX50
IC1001(3/3)
DSP
49 GIO_P16
80 38
IC4001(3/3)
IC14904
RESET
/RST 19 4 VOUT VCC 5
IC14902
RESET
1 VOUT VIN 2
RESET MAIN-2
A
SECTION
(Page 13)
VDD_IO1
CHG_TAIR
4
P51/AN1
TH7535
BAT_EN
P11 39
Q7535
Q7131,7132
P50/AN0
3 BATT
SWITCH
42
P06
CORE_PWR
P05 43
Q7501
DC IN DET
P64/INT26/UI2 1
DC IN
P53/AN3 6
BAT_XVBUS
P16 34
48 81
Q7546
IC10101
+3.1V REG.
VDD_IO1 5 VOUT VDD 1
CE
3
IC10201
+1.5 V REG.
VDD_CORE1 5 VOUT VDD 1
D12601
VLCD
IC10401
+1.1V REG.
IC12601
DC/DC CONVERTER
VDD_DSP1 5 VOUT VDD 1
CE
3 FB1 EXT1
3
DSP_PWR
4 PWM1
7
PWM2
8 FB2 EXT2
L12701
VCORE
IC10501
+1.5 V REG.
VDD_CORE2 6 VOUT1
1 EN1
VIN 2
3 EN2
VDD_DSP2 4 VOUT2
MAIN-2
VBUS Q7531,7532
B
+B SWITCH
SECTION
(Page 13)
CHG_EN
14 14
Q7543
L7541
Q7543
SWITCH
10
EXT
IN 12
6 CS INP 11
5 CT BATT 7
Q7547
3
THRM
IC7541
CHARG CONTROL
TH7541
2 EN
1 XCHG
D7692
Q7691
L12601
B+
SWITCH
Q12601
SWITCHING
1
10
D7695
Q12701
SWITCHING
D7532
D12751
D7691
Q7696
VUNREG
5.6V LIMITER
D7693
Q7701,7702
Q7703,7704
INITIAL
+B SWITCH
PROTECT
BATT
LITUM ION
BATTERY PACK
3.7V, 720mAh
D7531
J7501
DC IN 6V