Sony NW-A1000 / NW-A1200 Service Manual ▷ View online
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CHARGE CONTROL IC9001 outputs status signals shown in Table.4-4 while charging to PLD IC8001.
Table.4-4 Status signal
IC9001 Pin-67 [XCHG_STAT1]
IC9001 Pin-68 [XCHG_STAT2]
Status
L
L
Charging Suspend
When transferring data from PC
When playing
When detecting the abnormal temperature
Etc.
L
Open
When charging
Open
L
When the charging operation terminates
Open
Open
Error Status (Timer Fault)
Battery Driving
Table.4-5 Monitoring the charging operation by PLD IC8001
IC8001 Pin-61 [CHG_STAT1]
IC8001 Pin-63 [XCHG_STAT2]
Status
H
L
Charging Suspend
When transferring data from PC
When playing
When detecting the abnormal temperature
Etc.
H
H
When charging
L
L
When the charging operation terminates
L
H
Error Status (Timer Fault)
Battery Driving
Table.4-6 Charging Current
Power Source
Pre-charging
(Until BATT voltage becomes 3[V])
(Until BATT voltage becomes 3[V])
Constant-Current Charging
Remark
AC Power Adapter
Approx. 50mA
3.0[V] to 3.3[V]: Approx. 350mA
3.3[V] to 3.6[V]: Approx. 425mA
Over 3.6[V]: Approx. 500mA
3.3[V] to 3.6[V]: Approx. 425mA
Over 3.6[V]: Approx. 500mA
-
USB
Approx. 50mA
3.0[V] to 3.6[V]: Approx. 350mA
Over 3.6[V]: Approx. 425mA
Over 3.6[V]: Approx. 425mA
Varies depending on conditions.
Note:
The actual charging current of USB charge varies depending on the system conditions. It will be as follows.
[Each VBUS limit current] – [Current consumed by the system] = [Actual charging current]
[Each VBUS limit current] – [Current consumed by the system] = [Actual charging current]
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Fig.4-1 Charging Circuit
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5. Appendix
5-1. Generated Voltages List
Table.5-1 and Table.5-2 show the generated voltages lists of the unit.
Table.5-1 Generated Voltages List - 1
Voltage Name
IC which generates the voltage
ICs which use the respective voltage
Test Point
BATT+
Built-in Lithium Ion Battery
-
POWER CONTROL IC9001
-
RTC IC4101 (For Sleep mode)
-
Step-up DC-DC CONVERTER IC8301
-
20V DC-DC CONVERTER IC8302
TP9001 (VB -> TP9029)
DCIN_5V
AC power adapter
-
POWER CONTROL IC9001
-
RTC IC4101 (For Sleep mode)
-
Step-up DC-DC CONVERTER IC8301
-
20V DC-DC CONVERTER IC8302
TP9201 (VB -> TP9029)
VBUS
PC
-
POWER CONTROL IC9001
-
RTC IC4101 (For Sleep mode)
-
Step-up DC-DC CONVERTER IC8301
-
20V DC-DC CONVERTER IC8302
-
USB CONTROLLER IC5001
TP9202 (VB -> TP9029)
VB
-
Built-in Lithium Ion Battery
-
AC Power Adapter
-
PC
-
POWER CONTROL IC9001
-
RTC IC4101 (For Sleep mode)
-
Step-up DC-DC CONVERTER IC8301
-
20V DC-DC CONVERTER IC8302
TP9029
VREF (2.4[V])
POWER CONTROL IC9001
POWER CONTROL IC9001
-
BG1 (2.8[V])
POWER CONTROL IC9001
POWER CONTROL IC9001
-
BG2 (1.4[V])
POWER CONTROL IC9001
POWER CONTROL IC9001
-
BG3 (0.6[V])
POWER CONTROL IC9001
POWER CONTROL IC9001
-
VSTBY
POWER CONTROL IC9001
-
KEY SELECT SWITCH IC6001
-
KEY SELECT SWITCH IC6004
-
KEY MATRIX Circuit
TP9018
1.10V
POWER CONTROL IC9001
-
MAIN SYSTEM CONTROLLER IC6005
-
HP AMP. IC3003
TP9027
1.8V
POWER CONTROL IC9001
-
PLD IC8001
-
SUB SYSTEM CONTROLLER IC3101
TP9026
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Table.5-2 Generated Voltages List - 2
Voltage Name
IC which generates the voltage
ICs which use the respective voltage
Test Point
3.3V
(HDD ON: 3.3[V],
(HDD ON: 3.3[V],
HDD OFF: 3.1[V])
POWER CONTROL IC9001
-
NOT IC6006 (For Reset)
-
NOT IC6007 (For Reset)
-
USB CONTROLLER IC5001
-
SDRAM IC7001
-
NOR FLASH IC7002
TP9025
3.3V_A
(HDD ON: 3.3[V],
HDD OFF: 3.1[V])
(HDD ON: 3.3[V],
HDD OFF: 3.1[V])
2.8V REGULATOR IC3001
TP9030
3.3V_HDD
(HDD ON: 3.3[V],
HDD OFF: 3.1[V])
(HDD ON: 3.3[V],
HDD OFF: 3.1[V])
-
Q5001 (Power Switch)
-
HDD DRIVE
TP9028/TP5001
2.8V_REG
2.8V REGULATOR IC3001
-
D/A CONVERTER IC3002
-
HP AMP. IC3003
-
1.3V
POWER CONTROL IC9001
(Based on 1.8V)
(Based on 1.8V)
SUB SYSTEM CONTROLLER IC3101
TP9023
3.0V
POWER CONTROL IC9001
(Based on 3.3V)
(Based on 3.3V)
-
PLD IC8001
-
SUB SYSTEM CONTROLLER IC3101
-
RTC IC4101 (For Wake-up mode)
-
G SENSOR IC4202
-
ANALOG SWITCH IC6003
-
Remote Controller
-
MAIN SYSTEM CONTROLLER IC6005
-
OEL Block
TP9031
5.0V
POWER CONTROL IC9001
MUTE Circuit
TP9024
OEL_VCC
(NW-A1000/A1200:15[V],
NW-A3000:17[V])
(NW-A1000/A1200:15[V],
NW-A3000:17[V])
Step-up DC-DC CONVERTER
IC8301
IC8301
OEL Block
-
LED_VCC (20[V])
20V DC-DC CONVERTER IC8302
LED Circuit
-
DC_OUT
VB controlled by Q9006
Optional Cradle Unit
TP9204
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