NW-HD3
20
20
NW-HD3
5-3. BLOCK DIAGRAM – KEY/POWER SUPPLY Section –
D33_MODE
GSEN_PWR
HOLD
S5009
ON OFF
G-SENSOR
IC8000
SWITCH UNIT
KEY SELECT
SWITCH
IC1001
+3.3V
+2.8V
EN
DC/DC CONVERTER
IC9001
RMC (K1)
VBUS
MULTI_SIO
D33_MODE, GSEN_PWR
KEY SELECT
SWITCH
IC1002
B+ SWITCH
IC8001
+3.3V
KEY2
KEY1
PQ4
XCHG_PG
KEY2
PQ4
KEY1
RMC (K1)
SWITCH UNIT
RMCKEY
SET_KEY
BUFFER
Q9002, 9004
+3.3V_A
+3.3V_HD
+3.3V
(IC4301)
+2.4V_DAC
(IC1003)
+2.4V_AD
(IC1003)
POWER
CONTROL
IC9002
AD_RMCKEY
Q9003
+1.5V
+2.0V
+2.4V
+1.2V
MULTI_SO
SET_KEY
XCHG_PG
MULTI_SCK
XRST
RMCKEY
BUILT-IN BATTERY
BATTERY
MONITOR
SWITCH
Q9001,
9503
S9501
ON OFF
D9501
AUTO SELECT
POWER SWITCH
IC9504
CHARGE
CONTROL
IC9501
LITHIUM ION
BATTERY
LIS1317HNP
4.2V 760mAh
BATT+
BATT–
CHARGE
CN9501
CN9502 (2/2)
USB
CRADLE
CONNECTOR
8
TEMPERATURE
DETECT
TH9501
CHARGE
CURRENT
SWITCH
Q9501
Q9502
DC5V
XCHG_STAT1
DC IN 6V
MENU
/–
,
,
,
,
,
MODE ,
CHG_LIM, XCHG_USB
CHG_LIM
XCHG_USB
Summary of Contents for Network Walkman NW-HD3
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