Ic Block Diagrams - Sony Walkman NWZ-A726 Service Manual

• IC Block Diagrams

– MAIN Board –
IC301 XC6401FF58DR
ON / OFF
EN2 1
CONTROL
REGULATOR 2
VOLTAGE
VIN 2
REFERENCE
REGULATOR 1
ON / OFF
EN1 3
CONTROL
7
IC501 S1R72V27B05E10B
A1
XI B8
OSCILLATOR
XO C8
TESTEN H1
TEST
ATPGEN H8
MUX
BURNIN A8
DEVICE SERIAL
INTERFACE
ENGINE
MULTI
R1 A6
TRANSCELVER
A3
DP
MACRO
DM A4
HOST SERIAL
VBUSFLG B1
INTERFACE
VBUSEN C1
ENGINE
VBUS C3
XRESET D1
CLKIN D8
G3
XRD
XWRL H3
F3 H2 E3 G4 F4
IC503, 602 TK63731AB1G0B
A2
THERMAL &
OVER CURRENT
PROTECTION
VOLTAGE
ON / OFF
CONTROL
REFERENCE
GND A1
6 VOUT2
5
VOUT1
4 VSS
G7 B7 B6 B5 B4 B2 D7 G2 C7 A7 A2 C2 B3 A5
USB
FIRST-IN FIRST-OUT
USB
FIRST-IN FIRST-OUT
CONTROLLER
CPU INTERFACE
CONTROLLER
CHANNEL
/ENDPOINT
DMA
CONTROLLER
C4
D2 E1 C5 E2 D3 G1 F1 F2
B2 VIN
REGULATOR
B1
NWZ-A726/A726B/A728/A728B/A729
IC305 MAX4745ELB+TG069
10
CB1 1
NO1 2
GND 3
NO2 4
CB2 5
C6 CD15
E8 CD14
D6 CD13
F8 CD12
E7
CD11
F7 CD10
G8 CD9
H7 CD8
F6 CD7
G6 CD6
H6
CD5
CD4
E6
F5 CD3
H5 CD2
G5 CD1
H4
IC504 TK63718HCL-G
1
VIN
OVER CURRENT
PROTECTION
GND 2 REGULATOR
VOLTAGE
REFERENCE
VOUT 3
COM1
9 NC1
8 VCC
7 NC2
6 CON2
THERMAL &
ON / OFF
6
VCONT
CONTROL
5 GND
4 NC
31