Sony NWZ-A726 / NWZ-A726B / NWZ-A728 / NWZ-A728B / NWZ-A729 Service Manual ▷ View online
NWZ-A726/A726B/A728/A728B/A729
NWZ-A726/A726B/A728/A728B/A729
21
21
5-4. PRINTED WIRING BOARD - MAIN Board (Side B) -
•
: Uses unleaded solder.
R602
R603
4
S
G
D
CN602
JL001
JL002
JL003
JL004
JL005
C611
S601
R685
Q901
IC602
L901
L902
R906
R909
R912
R918
R919
R920
R922
R923
R926
R927
R928
R929
+
P
R930
R931
C902
C903
C904
C905
C912
C913
C914
C916
C917
C918
C919
C920
C921
C922
C924
32
9
25
24
1
17
8
16
33
5
3
1
IC901
IC902
FB609
R604
R605
IC751
IC752
C207
R630
FB851
FB852
TB851
R851
R853
R855
R857
R858
R859
R667
R862
C633
C634
R671
D201
C853
C854
TB301
R105
R302
R304
R305
R503
R310
R504
R505
R312
R314
R315
TB901
R510
CN301
R511
R901
R904
R907
R520
R908
R521
R522
R910
R91
1
R913
C107
R914
R916
C301
C302
C303
CN901
C306
C308
C310
C31
1
C312
C313
C314
C315
C316
C51
1
C512
C516
C517
C518
C326
C327
C328
C329
C908
C909
R751
R753
C330
R754
R755
R756
R757
C910
R758
R759
R760
R761
R762
R763
R764
R765 R767
R769
R774
R775
R776
R777
R775
R776
R777
R778
R779
R780
R781
R779
R780
R781
C752
C753
C754
C755
IC301
IC302
IC503
IC504
IC508
IC509
R205
FB601
24
25
1
48
24
25
1
48
1
B2
B1
A2
A1
3
1
4
6
7
B2
B1
A2
A1
1
3
4
6
1
2
1
2
4
A1
A2
B1
C1
C2
B2
3
2
1
11
1
2
10
A
A
41
30
1
40
31
21
10
11
20
MAIN BOARD
(SIDE B)
1-875-443-
11
(11)
A
B
C
D
E
F
G
H
I
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
RESET
SHEET KEY
LITHIUM ION
STORAGE
BATTERY
3.7V 610mAh
(CHASSIS)
(CHASSIS)
HP FLEXIBLE
PRINT BOARD
(NWZ-A729)
(NWZ-A729)
(NWZ-A728/A728B)
(NWZ-A728/A728B/A729)
(CHASSIS)
J301
J
Note 2: CN602, IC301, IC302, IC503, IC508, IC509, IC602, IC751, IC752, IC901 and IC902 on the MAIN
board cannot exchange with single. When CN602, IC301, IC302, IC503, IC508, IC509, IC602, IC751,
IC752, IC901 and IC902 on the MAIN board are damaged, exchange the entire mounted board.
IC752, IC901 and IC902 on the MAIN board are damaged, exchange the entire mounted board.
Ref. No. Location
• Semiconductor Location
Ref. No. Location Ref. No. Location
D201
B-12
IC301
C-15
IC302
C-14
IC503
G-11
IC504
H-11
IC508
G-16
IC509
H-15
IC602
H-9
IC751
E-13
IC752
G-13
IC901
H-8
IC902
H-4
Q901
H-5
Note 1: When the MAIN board is replaced, format it according to the “NOTE OF MAIN
BOARD REPLACING” (refer to page 4) of the servicing notes.
NWZ-A726/A726B/A728/A728B/A729
NWZ-A726/A726B/A728/A728B/A729
23
23
5-6. SCHEMATIC DIAGRAM - MAIN Board (2/6) -
(1/6)
MAIN
BOARD
7
SDR_D03
SDR_A00
SDR_A05
SDR_A03
SDR_D19
SDR_D10
SDR_D00
SDR_D21
SDR_A07
SDR_DQM2
SDR_A12
IC701
K4M56323PI-HG75T
A0
G8
A1
G9
A2
F7
A3
F3
A4
G1
A5
G2
A6
G3
A7
H1
A8
H2
A9
J3
A10
G7
BA0
J7
BA1
H8
DQ0
R8
DQ1
N7
DQ2
R9
DQ3
N8
DQ4
P9
DQ5
M8
DQ6
M7
DQ7
L8
DQ8
L2
DQ9
M3
DQ10
M2
DQ11
P1
DQ12
N2
DQ13
R1
DQ14
N3
DQ15
R2
DQ16
E8
DQ17
D7
DQ18
D8
DQ19
B9
DQ20
C8
DQ21
A9
DQ22
C7
DQ23
A8
DQ24
A2
DQ25
C3
DQ26
A1
DQ27
C2
DQ28
B1
DQ29
D2
DQ30
D3
DQ31
E2
DQM0
K9
DQM1
K1
DQM2
F8
DQM3
F2
CS
J8
WE
K8
RAS
J9
CAS
K7
CKE
J2
CLK
J1
NC
E3
NC
E7
A12
H3
NC
H7
A1
1
H9
NC
K2
NC
K3
VDD
A7
VDD
F9
VDD
L7
VDD
R7
VDDQ
B2
VDDQ
B7
VDDQ
C9
VDDQ
D9
VDDQ
E1
VDDQ
L1
VDDQ
M9
VDDQ
N9
VDDQ
P2
VDDQ
P7
VSS
A3
VSS
F1
VSS
L3
VSS
R3
VSSQ
B3
VSSQ
B8
VSSQ
C1
VSSQ
D1
VSSQ
E9
VSSQ
L9
VSSQ
M1
VSSQ
N1
VSSQ
P3
VSSQ
P8
SDR_D29
SDR_A09
SDR_D18
SDR_XWR
SDR_A11
SDR_D20
SDR_A02
SDR_BA1
SDR_D14
SDR_XCS0
SDR_CKE0
SDR_D27
SDR_D04
SDR_D02
SDR_A06
SDR_D05
SDR_D28
SDR_D15
SDR_DQM0
SDR_A10
SDR_D16
SDR_D06
SDR_D24
SDR_BA0
SDR_D13
SDR_D17
SDR_D11
SDR_DQM3
SDR_D23
SDR_D12
SDR_D22
SDR_D25
SDR_DQM1
SDR_D30
SDR_D09
SDR_D07
SDR_XRAS
SDR_D01
SDR_D08
SDR_XCAS
SDR_A04
SDR_CLK
SDR_D31
SDR_A08
SDR_D26
SDR_A01
C701 0.1
DGND
C703 0.1
C705 0.1
C707 0.1
C709 0.1
C711
0.1
C713 0.1
VDD_ECO_J
FL701
100k
R702
SDR_D17
SDR_A06
SDR_D02
SDR_XWR
SDR_A12
SDR_D20
SDR_A05
SDR_D13
SDR_DQM3
SDR_DQM2
SDR_A04
SDR_D10
SDR_DQM2
SDR_BA0
SDR_D16
SDR_D21
SDR_DQM1
SDR_DQM0
SDR_A10
SDR_D22
SDR_XWR
SDR_A09
SDR_D23
SDR_XRAS
SDR_A08
SDR_D24
SDR_XCAS
SDR_A07
SDR_D25
SDR_BA1
SDR_A06
SDR_D26
SDR_BA0
SDR_A1
1
SDR_A05
SDR_D31
SDR_A11
SDR_A12
SDR_D13
SDR_D05
SDR_D08
SDR_D25
SDR_D07
SDR_D14
SDR_D04
SDR_D24
SDR_D15
SDR_D15
SDR_D03
SDR_D23
SDR_D12
SDR_D16
SDR_D02
SDR_D22
SDR_D05
SDR_D17
SDR_D01
SDR_D21
SDR_D11
SDR_D18
SDR_D20
SDR_D14
SDR_D19
SDR_BA1
SDR_D19
SDR_DQM3
SDR_A03
SDR_D01
SDR_DQM1
SDR_A02
SDR_D04
SDR_DQM0
SDR_D30
SDR_A01
SDR_D00
SDR_D10
SDR_D29
SDR_A00
SDR_D09
SDR_D09
SDR_D08
SDR_D28
SDR_CLK
SDR_D03
SDR_D11
SDR_D07
SDR_D27
SDR_D06
SDR_D12
SDR_D06
SDR_D26
SDR_A04
SDR_D30
SDR_A10
SDR_A03
SDR_D29
SDR_A09
SDR_CKE0
SDR_A02
SDR_D28
SDR_A08
SDR_XCAS
SDR_D18
SDR_D27
SDR_A07
SDR_D00
SDR_CLK
SDR_XRAS
SDR_CKE0
SDR_XCS0
SDR_XCS0
SDR_A00
SDR_A01
SDR_D31
IC701
SD-RAM
(Chip Size Package)
CSP
(2/6)
MAIN BOARD
H
3
B
I
E
9
C
A
6
2
4
5
1
F
7
G
8
D
Note 2: IC701 on the MAIN board cannot exchange with single. When IC701
on the MAIN board is damaged, exchange the entire mounted board.
(Page 22)
Note 1: When the MAIN board is replaced, format it according to the “NOTE OF MAIN
BOARD REPLACING” (refer to page 4) of the servicing notes.
NWZ-A726/A726B/A728/A728B/A729
NWZ-A726/A726B/A728/A728B/A729
24
24
5-7. SCHEMATIC DIAGRAM - MAIN Board (3/6) -
6
MAIN
(1/6)
BOARD
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
100k
R767
100k
R765
100k
R756
100k
R755
NAND_D01
NAND_D02
NAND_D03
NAND_D04
NAND_D05
NAND_D06
NAND_D07
NAND_D00
VDD_GP3
NAND_XCS2
NAND_XCS3
NAND_XRD
NAND_CLE
NAND_ALE
NAND_XWR
DGND
0.1
C752
0.1
C753
0.1
C754
0.1
C755
470k
R764
470k
R753
470k
R754
0
R751
NAND_XCS0
NAND_RXB2
NAND_RXB0
NAND_RXB3
1k
R769
47k
R774
47k
R775
47k
R776
47k
R777
47k
R778
47k
R779
47k
R780
47k
R781
NAND_RXB1
NAND_XCS1
0
R758
0
R757
R760 0
0
R761
0
R762
R763 0
470k
R759
NAND_ALE
NAND_CLE
NAND_XRD
NAND_XCS3
NAND_XCS2
NAND_D07
NAND_D06
NAND_D05
NAND_CLE
NAND_ALE
NAND_XWR
NAND_D02
NAND_D00
NAND_D04
NAND_D01
NAND_D03
NAND_RXB2
NAND_RXB0
NAND_XWP
NAND_RXB0
NAND_XRD
NAND_XCS0
NAND_CLE
NAND_ALE
NAND_XWR
NAND_XWP
NAND_RXB1
NAND_XCS1
NAND_RXB1
NAND_XCS1
NAND_RXB1
NAND_RXB2
NAND_XRD
NAND_XCS2
NAND_XCS1
NAND_D07
NAND_D06
NAND_D05
NAND_D04
NAND_D03
NAND_D02
NAND_D01
NAND_D00
NAND_RXB3
NAND_XCS0
NAND_XWR
NAND_XCS3
NAND_RXB3
NAND_D00
NAND_D01
NAND_D02
NAND_D03
NAND_D04
NAND_D05
NAND_D06
NAND_D07
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC(PSL)
NC
NC
NC
NC
NC
R/B2
R/B1
XRE
XCE1
XCE2
VCC
VSS
CLE
ALE
XWE
XWP
I/08
I/07
I/06
I/05
VCC
VSS
I/04
I/03
I/02
I/01
XCE2
NC
NC
NC
VSS
NC(PSL)
ALE
R/B1
NC
NC
I/02
I/08
I/01
NC
NC
I/06
I/03
NC
I/05
NC
NC
NC
VCC
NC
XCE1
XWE
NC
NC
VSS
NC
I/04
NC
NC
NC
R/B2
NC
NC
NC
NC
NC
NC
XRE
NC
XWP
I/07
NC
CLE
VCC
(NWZ-A729)
A728B
NWZ-A728/
IC752
TH58NVG6D1DTG00 (NWZ-A728/A728B)
TH58NVG6D1DTG20 (NWZ-A729)
NAND FLASH MEMORY
IC752
NAND FLASH MEMORY
IC751
IC751
TH58NVG6D1DTG20 (NWZ-A729)
TH58NVG6D1DTG00 (NWZ-A726/A728/A726B/A728B)
(NWZ-A729)
(NWZ-A728/A728B/A729)
(3/6)
MAIN BOARD
C
8
6
3
10
D
E
4
B
1
11
7
A
2
9
5
Note 2: IC751 and IC752 on the MAIN board cannot exchange with single. When IC751 and IC752 on
the MAIN board are damaged, exchange the entire mounted board.
(Page 22)
Note 1: When the MAIN board is replaced, format it according to the “NOTE OF MAIN
BOARD REPLACING” (refer to page 4) of the servicing notes.
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