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Pioneer PDR-W839 Service Manual page 99

Compact disc recorder / multi-cd changer
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PD5603A (MAIN ASSY : IC901)
• System Control IC
•
Pin Function
N
. o
M
a
k r
1
S
O
U
T
4
2
C
L
K
4
3
P94
4
P
9
3
5
P
9
2
6
P91
P90
7
8
B
Y
T
E
9
C
N
V
S
S
1
0
XCIN
1
1
XCOUT
^R
1
2
E
S
E
T
1
3
X
O
U
T
1
4
V
S
S
1
5
X
N I
1
6
V
C
C
1
7
P
8
5
1
8
INT2
1
9
N I
T
1
2
0
N I
T
0
2
1
P
8
1
2
2
P
8
0
2
3
P
7
7
2
4
P
7
6
2
5
P
7
5
2
6
P
7
4
2
7
P
7
3
2
8
P
7
2
2
9
P
7
1
3
0
P
7
0
3
1
T
X
D
(at FLASH)
3
2
R
X
D
(at FLASH)
3
3
C
L
K
(at FLASH)
3
4
R
T
S
(at FLASH)
3
5
T
X
D
0
3
6
R
X
D
0
3
7
C
L
K
0
3
8
P
6
0
3
9
P
5
7
4
0
P
5
6
P
n i
N
a
m
e
/ I
O
F
L
I D
O
S
r e
l a i
d
a
F
L
C
L
O
S
r e
a i
c l
o l
O
SELI-
3CD Mecha select drive control
3CD Mecha SW(Initail Select position detect)
SELINIT
I
SELECT
I
3CD Mecha SW(Select position detect)
CLAMP
3CD Mecha SW(CLAMP END detect)
I
HOME
I
3CD Mecha SW(Tray position detect)
V
S
S
I
C
o
n
n
e
t c
C
N
V
S
S
I
P
l l u
d -
o
w
n
Stand-by for HCMS
XCIN
I
XCOUT
O
Stand-by for HCMS
R
E
S
E
T
I
S
s y
e t
m
e r
X
O
U
T
O
S
s y
e t
m
o
V
S
S
I
C
o
n
n
e
t c
X
N I
I
S
s y
e t
m
o
V
C
C
I
C
o
n
n
e
t c
V
C
C
I
C
o
n
n
e
t c
KEYCK
Key Board input
I
REMIN
I
R
e
m
o
e t
c
Commmunication permission form MECHA controller
MACK
I
NC
O
Not used (L outputs)
NC
O
Not used (L outputs)
NC
Not used (L outputs)
O
Not used (L outputs)
NC
O
KEYDATA
I
Key Board input
O
Optical input (ON/OFF SW)
XOPT
Headphone attenuator change SW
O
HP_ATT
O
System MUTE
SX
M
U
T
E
NC
O
N
t o
u
s
e
d
NC
O
F
L
A
S
H
T
X
D
1
I
F
L
A
S
H
R
X
D
1
I
N
t o
u
s
e
d
F
L
A
S
H
C
L
K
1
I
F
L
A
S
H
R
T
S
1
O
MSI
O
S
r e
a i
c l
o
m
MSO
I
S
r e
a i
c l
o
m
SSCK
O
S
r e
a i
c l
o
m
Request for MECHA controller communication
SREQ
O
NC
N
t o
u
s
e
d
O
MRESET
O
c
MECHA
P
n i
a t
o
u
p t
u
f t
r o
F
L
r d
v i
r e
k c
o
u
p t
u
f t
r o
F
L
r d
v i
r e
o t
G
N
D
c
o
n
n
e
t c
o t
G
N
D
s
t e
n i
p
t u
c s
l l i
t a
o i
n
1
6
M
H
z
o t
G
N
D
c s
l l i
t a
o i
n
1
6
M
H
z
o t
V
D
D
o t
V
D
D
o
n
r t
l o
n i
p
t u
L (
o
u
p t
t u
) s
F (
a l
s
h
w
t i r
) e
m
u
n
c i
t a
o i
n
o
u
p t
t u
i w
h t
h t
e
MECHA
m
u
n
c i
t a
o i
n
n i
p
t u
i w
h t
h t
e
MECHA
m
u
n
c i
t a
o i
n
c
o l
k c
i w
h t
h t
e
MECHA
L (
o
u
p t
t u
) s
o
n
r t
l l o
r e
e r
s
t e
o
u
p t
t u
PDR-W839
F
u
n
t c
o i
n
c
o
n
r t
l l o
r e
c
o
n
r t
l l o
r e
c
o
n
r t
l l o
r e
99
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