Sony NWZ-A826 Service Manual page 32

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NWZ-A826/A826K/A828/A828K/A829
• IC Block Diagrams
– MAIN Board –
IC301 XC6401FF58DR
ON / OFF
EN2
1
CONTROL
REGULATOR 2
6
VOUT2
VOLTAGE
VIN
2
REFERENCE
REGULATOR 1
5
VOUT1
ON / OFF
EN1
3
CONTROL
4
VSS
7
IC451, 452 TC7PA53FU (TE85L.F)
A
6
VCC
5
CH1
1
MALTIPLEXER/
GND
2
4
COMMON
DEMALTIPLEXER
CH0
3
IC453 UGNZ4-GA5A
F5 F4 F3
F2
F1
E6
E5
RF
FRONT-END
RF
TRANSMITTER
RF
SYNTHESIZER
RF
RECEIVER
X_IN
A3
UART_RTS
A4
PIO7
A5
BASE BAND
GND
A6
AND LOGIC
UART_TXD
B1
UART_RXD
B2
UART_CTS
B3
PIO8
B4
MICRO
CONTROLLER
VCC_IO
B5
+1.8V
REGULATOR
B6
C1 C2 C3
C4
C5 C6
D1
NWZ-A826/A826K/A828/A828K/A829
IC305 MAX4745ELB+TG069
10
COM1
CB1 1
NO1 2
9
NC1
GND 3
8
VCC
NO2 4
7
NC2
CB2 5
6
CON2
26 MHz
CRYSTAL
2ND
LOCAL
SYNTH
CLOCK
E4 PIO1
GENERATION
E3 PIO4
E2 USB_DP
E1 USB_DN
D6 GND
D5 PIO3
D4 PIO0
D3 PIO5
D2 PCM_IN
IC501 S1R72V27B05E10B
A1
G7 B7 B6 B5 B4 B2 D7 G2 C7 A7 A2 C2 B3 A5
XI
B8
OSCILLATOR
XO
C8
USB
FIRST-IN FIRST-OUT
TESTEN
H1
USB
TEST
ATPGEN
H8
FIRST-IN FIRST-OUT
MUX
CONTROLLER
BURNIN
A8
DEVICE SERIAL
INTERFACE
ENGINE
MULTI
A6
R1
CHANNEL
TRANSCELVER
DP
A3
/ENDPOINT
MACRO
DM
A4
HOST SERIAL
VBUSFLG
B1
INTERFACE
VBUSEN
C1
ENGINE
VBUS
C3
XRESET
D1
D8
CLKIN
XRD
G3
XWRL
H3
F3
H2 E3 G4 F4
D2
IC503, 602 TK63731AB1G0B
A2
THERMAL &
OVER CURRENT
PROTECTION
REGULATOR
ON / OFF
VOLTAGE
CONTROL
REFERENCE
GND
A1
B1
IC509 SN74AVC1T45YZPR
VCCA
A1
A2
B2
GND
B1
A
C1
C2
32
32
C6
CD15
E8
CD14
D6
CD13
F8
CD12
E7
CD11
F7
CD10
CPU INTERFACE
G8
CD9
CONTROLLER
H7
CD8
F6
CD7
DMA
G6
CD6
CONTROLLER
H6
CD5
E6
CD4
F5
CD3
H5
CD2
G5
CD1
C4
E1 C5 E2 D3 G1 F1 F2
H4
IC504 TK63718HCL-G
VIN
1
B2
VIN
THERMAL &
OVER CURRENT
PROTECTION
GND
2
REGULATOR
VOLTAGE
REFERENCE
VOUT
3
VCCB
DIR
B
ON / OFF
6
VCONT
CONTROL
5
GND
4
NC

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