NAD M55 Service Manual page 69

Digital music player
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SECTION 5
MODEL
P
N /
DECODE BOARD
Diode
3
3
4 -
0
3
5
2
0 -
1
S
w
c t i
h
3
3
4 -
4
1
4
8
1 -
1
S
w
c t i
h
3
3
2 -
4
0
0
1
0 -
2
R
e
c
i f i t
r e
33-24001-00
Rectifier Diode
33-11200-11
Zener Diode
3
3
1 -
5
6
0
9
0 -
1
Z
e
n
r e
D
33-15609-00
Zener Diode
Transistor
3
1
0 -
3
0
1
9
0 -
1
T
a r
n
s
t s i
3
1
0 -
1
8
1
5
0 -
1
T
a r
n
s
t s i
3
1
0 -
1
0
1
5
0 -
1
T
a r
n
s
t s i
3
1
0 -
0
1
1
4
0 -
5
T
a r
n
s
t s i
3
1
0 -
0
1
4
4
0 -
5
T
a r
n
s
t s i
3
1
0 -
3
3
2
6
0 -
1
T
a r
n
s
t s i
3
1
0 -
1
2
0
1
0 -
1
T
a r
n
s
t s i
ICS
0
3
0 -
1
6
0
8
0 -
1
A
U
I D
O
03-29160-71
FLASH MEMORY
03-29160-70
FLASH MEMORY
0
3
0 -
1
1
1
7
0 -
3
L
n i
e
r a
0
3
0 -
1
8
8
1
0 -
1
R
F
A
M
0
3
0 -
1
8
8
5
0 -
1
S
E
R
V
O
0
3
0 -
2
7
5
3
0 -
1
S
A
C
D
0
3
0 -
6
1
6
8
0 -
1
M
P
E
G
0
3
0 -
8
0
4
2
0 -
1
M
O
T
O
03-00640-70
SDRAM
0
3
1 -
6
1
6
1
4 -
5
D
R
A
M
0
3
1 -
6
1
6
1
7 -
0
S
D
R
A
M
0
3
0 -
2
1
3
4
0 -
0
A
U
I D
O
0
3
0 -
6
4
3
2
1 -
0
C
P
L
D
0
3
0 -
2
4
1
6
0 -
2
E
E
P
R
O
0
3
0 -
0
8
0
9
0 -
2
R
E
S
E
T
0
3
0 -
7
8
1
2
0 -
1
R
e
g
l u
t a
0
3
0 -
7
9
1
2
0 -
1
R
e
g
l u
t a
0
3
0 -
1
1
1
7
1 -
8
R
e
g
l u
t a
0
3
0 -
1
1
1
7
2 -
5
R
e
g
l u
t a
0
3
0 -
1
1
1
7
3 -
3
R
e
g
l u
t a
0
3
0 -
0
0
0
4
0 -
2
- 6
n I
v
e
t r
0
3
0 -
0
5
1
1
0 -
0
F
b i
r e
O
0
3
0 -
3
2
4
3
0 -
1
R
S
2
3
2
0
3
0 -
0
1
3
8
0 -
1
- 3
o t
8 -
L
0
3
0 -
0
3
7
4
0 -
1
D
T -
y
p
e
0
3
0 -
7
4
8
6
0 -
2
Q
u
a
d
- 2
0
3
7 -
4
2
4
1
0 -
1
D
u
l a
B
u
Universal Asynchronous
03-16550-48
Receiver/Transmitter
0
3
0 -
0
8
1
7
0 -
0
P
h
o
o t
C
DDX Multi-channel Digital Audio
03-08001-01
Processor
Capacitor
2
6
2 -
2
0
5
1
0 -
0
C
e
a r
m
c i
2
6
5 -
6
0
5
1
0 -
0
C
e
a r
m
c i
26-10151-00
Ceramic Chip Capacitor
26-15151-00
Ceramic Chip Capacitor
26-18151-00
Ceramic Chip Capacitor
REPLACEMENT PARTS LIST
D
e
s
c
i r
t p
o i
n
C/BC VERSION P/N:01-55501-20
D
o i
d
e
1
S
S
3
5
2
D
o i
d
e
L
L
4
1
4
8
D
o i
d
e
1
N
4
0
0
1
1N4001
12V, 1/2W
o i
d
e
5
V
, 6
1
2 /
W
5V6, 1/2W
r o
2
S
K
3
0
1
9
r o
2
S
C
1
8
1
5
r o
2
S
A
1
0
1
5
r o
D
T
C
1
1
4
E
r o
D
T
C
1
4
4
E
r o
2
S
C
3
3
2
6
A
r o
2
S
A
1
2
0
1
Y
D
A /
D
S
D
1
6
0
8
MX29LV160ABTC-70
MX29LV160CBTC-70
M29W160EB-70N6
MX29LV160ABTC-70
MX29LV160CBTC-70
M29W160EB-70N6
R
e
g
l u
t a
r o
L
M
1
1
1
7
D
P
C
X
D
1
8
8
1
D
S
P
C
X
D
1
8
8
5
D
E
C
O
D
E
C
X
D
2
7
5
3
D
E
C
O
D
E
E
S
6
1
6
8
F
A
D
R
V I
E
R
F
A
N
8
0
4
2
GLT5640L16-7TS/, IS42S16400B-
7T/, W986416DH-7
M
1
1
L
1
6
1
6
M
1
2
L
1
6
1
6
A
M
P
L
F I
E I
R
O
P
A
2
1
3
4
M
4
A
3
6 -
4
3 /
M
2
4
L
C
1
6
A
T
C
M
8
0
9
M
r o
L
M
7
8
M
1
2
r o
L
M
7
9
M
1
2
r o
L
M
1
1
1
7
M
r o
L
M
1
1
1
7
M
r o
L
M
1
1
1
7
M
r e
M
M
7
4
H
C
U
p
c i t
T
a r
n
s
m
t t i
r e
G
P
1
F
A
V
3
T
a r
n
c s
e
v i
e
s r
M
A
X
3
2
4
3
n i
e
D
e
c
o
d
r e
M
M
7
4
H
C
T
F
p i l
F -
o l
, p
C
D
7
4
H
C
T
n I
p
t u
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c x
u l
s
v i
e
O
R
G
a
e t
7
4
H
C
8
6
f f
r e
D /
r
v i
r e
7
4
L
V
C
2
G
S
C
1
6
C
5
5
o
u
l p
r e
P
C
8
1
7
B
D
D
X
8
0
0
1
C
h
p i
C
a
p
a
t i c
r o
2
2
p
, F
5
0
, V
C
h
p i
C
a
p
a
t i c
r o
5
6
p
, F
5
0
, V
100pF, 50V, ±5%, NPO
150pF, 50V, ±5%, NPO
180pF, 50V, ±5%, NPO
P
a
t r
T
y
p
e
D
2
, 4
D
2
, 5
D
2
, 0
D
2
, 1
D
1
D4, D5, D6, D7, D8, D9, D10, D11, D12, D13,
D14, D15, D16, D17, D18, D19
D
2
7
Q
4
, 3
Q
4
4
Q
3
, 6
Q
3
, 7
Q
4
, 0
Q
4
, 1
K
A
Q
, 5
Q
6
U
A
Q
4
5
Q3, Q4, Q28, Q29, Q30, Q31, Q32, Q33, Q34,
Q35, Q50, Q51, Q52, Q53, Q54, Q55
2 /
S
B
1
1
3
2
Q
Q
4
, 8
Q
4
9
P
A
H
U
2
2
U
6
T
X
A -
D
J
U
2
8
B
R
C I
2
1
Q
C I
1
8
R
C I
1
6
U
1
0
C I
2
5
U
1
3
1
S
A
4 -
5
T
C I
2
0
1
A
7 -
T
C I
1
5
U
A
U
2
, 3
U
2
, 4
2
1 -
0
V
C
C I
1
7
U
1
4
E
N
B
U
9
C
D
T
U
3
8
C
D
T
U
3
7
P
X
1 -
8 .
A /
M
S
1
1
1
7
1 -
8 .
C I
2
4
P
X
2 -
5 .
A
M
S
1
1
1
7
2 -
5 .
C I
2
6
P
X
3 -
3 .
A /
M
S
1
1
1
7
3 -
3 .
C I
2
3
0
4
M
7 /
4
H
C
U
0
4
D
U
2
7
1
T
K
0
F
P
8
C
I U
U
2
1
1
3
8
M
U
1
8
3
7
4
M
U
1
, 6
U
1
7
U
3
2
4
1
U
3
1
0
B I
4
8
U
2
0
U
3
0
U
2
±
5
%
,
N
P
O
B
1
5
±
5
%
,
N
P
O
B
1
4
C456, C457, C458, C501, B49, B108
C128, C129, C130, C133, C134, C141, C142,
C202, C473, C474
B98, B99, B102, B103, B104, B105, B106, B107 0603
5-1
D
e
s
g i
n
t a
r o
AH VERSION P/N:01-55501-10
D
2
, 6
D
3
, 3
D
3
, 4
D
3
, 5
D
3
, 6
D
4
0
D
2
, 2
D
2
, 3
D
, 3
D
3
, 0
D
3
, 1
D
3
2
Q
5
6
Q
4
2
U
2
, 5
U
2
6
F
o
o
p t
i r
t n
R
e
m
a
k r
D
0
8
0
5
D
L
3 -
5
P
c t i
h
=
1
0
m
m
DO-41
LL34
P
c t i
h
=
6
m
m
DO-35
S
C
7 -
5
A
S
C
5 -
9
S
C
5 -
9
S
C
5 -
9
S
C
7 -
0
SC-59
S
C
6 -
2
T
Q
F
P
5
2
T
S
O
P
4
8
TSOP48
T
O
2
5
2
Q
F
P
6
4
M
L
Q
F
P
2
0
8
Q
U
A
D
1
7
6
F
Q
F
P
2
0
8
Q
F
P
4
8
T
S
O
P
5
4
TSOP44 II
TSOP50 II
S
O
8
T
Q
F
P
4
4
S
O
8
S
O
T
2 -
3
B
T
O
2
5
2
T
O
2
5
2
S
O
T
2
2
3
S
O
T
2
2
3
S
O
T
2
2
3
S
O
C I
1
4
D
P I
6
T
S
S
O
P
2
8
S
O
C I
1
6
S
O
C I
2
0
S
O
C I
1
4
T
S
S
O
P
8
L
Q
F
P
4
8
D
P I
4
T
Q
F
P
6
4
0
6
0
3
0
6
0
3
0603
0603

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