14
14
ICD-CX50
ICD-CX50
4-3. BLOCK DIAGRAM – POWER SECTION –
J7501
DC IN 6V
S22201
V.UP
ON
OFF
S22206,22208,22213
FUNCTION KEY
Q5401,5402
KEY
INTERRUPT
S22202-22204,S5417
FUNCTION KEY
D22202
D5401
RED
GREEN
REC/PLAY
D22201
CHG
IC4001(3/3)
SYSTEM CONTROLLER
IC14904
RESET
IC1001(3/3)
DSP
IC10101
+3.1V REG.
3
VDD_IO1
IC10401
+1.1V REG.
IC12601
DC/DC CONVERTER
3
VLCD
VCORE
VUNREG
VDD_DSP1
BATT
VDD_DSP2
VDD_CORE2
VDD_IO1
TH7535
Q7535
Q7501
RESET
CHG_TAIR
BAT_EN
CORE_PWR
DSP_PWR
BAT_XVBUS
CHG_EN
VBUS
DC IN DET
DC IN
IC14902
RESET
Q7131,7132
SWITCH
Q7543
SWITCH
Q12601
SWITCHING
Q12701
SWITCHING
IC10201
+1.5 V REG.
IC10501
+1.5 V REG.
L7541
Q7546
Q7543
Q7547
TH7541
Q7691
LITUM ION
BATTERY PACK
3.7V, 720mAh
D7692
D7695
D7691
D7693
L12601
L12701
D12601
D12751
BATT
VDD_CORE1
B+
SWITCH
Q7696
5.6V LIMITER
D7531
D7532
Q7703,7704
+B SWITCH
Q7701,7702
INITIAL
PROTECT
Q7531,7532
+B SWITCH