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Yamaha MDX-E300 Service Manual page 52

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MDX-E300
IC1401 : iX0410AW
MD System Microprocessor
No.
Pin Name
55*
P37
56*
P36
57*
P35
58*
P34
59*
P33
60*
P32
61
P31
62
Vcc
63
INNSW
64
GND
65
L3 DATA
66
L3 MODE
67
L3 CLK
68*
P24
69*
P23
70
PCNT0
71*
LAST
72
LD ON
73
A/B
74
SBSY
75*
DAP ON
76*
DFS0
77*
DFS1
78
P12
79
P11
80
XRST
81*
AD MUTE
82
LD+
83
LD-
84*
MUTE
85*
RAST
86*
TEST2
87*
TEST1
88*
TEST0
89
AVCK3
90
AVCK2
91
AVCK1
92
DTEMP
93
MINF
94*
TEST K1
95*
TEST K2
96
GND
97*
NC
98
VREF
99
AVcc
100
PR
The * marked terminal is a terminal which is not connected externally (open terminal).
52
I/O
O
Input/output port P37
O
Input/output port P36
O
Input/output port P35
O
Input/output port P34
O
Input/output port P33
O
Input/output port P32
O
Input/output port P31
I
+3.15V
I
Pick innermost track detect input
GND
O
L3 DATA (soft serial communication, with 2 modes, LSB first)
O
L3 MODE (soft serial communication, with 2 modes, LSB first)
O
L3 CLK (soft serial communication, with 2 modes, LSB first)
O
Input/output port P24
O
Input/output port P23
O
PCNT0 output
O
LAST
O
LDON output (H: ON)
O
ANLPTR output
O
ADPON output (for CK)
O
DAPON output (for CK)
O
DFS0 output
O
DFS1 output
O
Input/output port P12
O
Input/output port P11
O
XRST (system reset output)
O
ADMUTE output (for CK)
O
Loading motor + side control output
O
Loading motor - side control output
O
MUTE output
O
RAST
I
TEST 2 (special mode select 2)
I
TEST 1 (special mode select 1)
I
TEST 0 (special mode select 0)
I
AVCK3 (motor driver power supply monitor input)
I
AVCK2 (AD/DA block 3.1V monitor input)
I
AVCK1 (head circuit power supply monitor input)
I
DTEMP (temperature detect input)
I
MINF (by disc type / REC input)
I
TEST K1 (test key input 1)
I
TEST K2 (test key input 2)
GND
Unused
+3.15V
+3.15V
I
Playback/recording reset input
Function

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