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NW-HD5
20
20
NW-HD5
5-3. BLOCK DIAGRAM – KEY/POWER SUPPLY Section –
100
170
101
102
HOLD
S5009
ON OFF
G-SENSOR
IC8000
SWITCH UNIT
KEY SELECT
SWITCH
IC1001
+3.3V
DC/DC CONVERTER
IC9004
RMC (K1)
MULTI_SIO
GSEN_PWR
KEY SELECT
SWITCH
IC1002
B+ SWITCH
IC8001
+3.3V
HDD_PWR_CTL
KEY2
103
150
104
KEY1
PQ4
XDCIN_DET
KEY2
PQ4
KEY1
105
147
RMC (K1)
RMCKEY
SET_KEY
BUFFER
Q9007
+3.3V_A
+3.3V_HD
+3.3V
(IC4301)
+2.4V_DAC
(IC1003)
+2.4V_AD
(IC1003)
POWER
CONTROL
IC9003
AD_RMCKEY
+1.5V
+1.9V
+2.4V
+1.2V
MULTI_SO
SET_KEY
XDCIN_DET
MULTI_SCK
XRST
RMCKEY
BATTERY
MONITOR
SWITCH
Q9001,
Q9002
BATTERY
DETECT
Q9006
S9001
(BATTERY IN DETECT)
LITHIUM ION
BATTERY
LIP-880PD
3.7V 880mAh
J9001
(DC IN)
,
,
,
VBUS_LIM, SUSPEND
u
U
u
,
I
,
,
VOL
+
SEARCH/ MENU
VOL
–
i
x
BUFFER
Q9008
SHUT DOWN
SWITCH
Q9009
CHARGE
CONTROL
IC9002
TH9001
VBUS_LIM
SUSPEND
Q9005
VBUS