Yamaha MDX-596 Service Manual page 32

MDX-596
IC1401 : iX0324AW
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).
31
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