MD-S301/S301W
– 41 –
62
P46
RFLAT
Output
RF amp IC data latch output
63
P47
RACLK
Output
RF/audio IC data clock output
64
P50
RADAT
Output
RF/audio IC serial data output
65
P51
PBLAT
Output
Audio IC data latch output
66
P52
PWLED
Output
Power indicator output
67
P53
PBOPON
Output
Audio IC output stage control output
68*-71*
P54-P57
P54-P57
Output
Not used
72
VSS
VSS
—
Ground potential
73
P60
EMPH
Output
Audio emphasis control output
74
P61
HPLAY
Input
Main unit PLAY key operation detection input
75*
P62
P62
Output
Not used
76
P63
HSTOP
Input
Main unit STOP key operation detection input
77*-80*
P64-P67
P64-P67
Output
Not used
81
VDD
VDD
—
Positive power
82
TI5
SPIN
Input
Spindle motor FG pulse detection input
83
P101
P101
Output
Sled motor control spare
84*
P102
TEST0
Input
Test mode setting input 0
85*
P103
TEST1
Input
Test mode setting input 1
86
P30
EPCS
Output
EEPROM chip select output
87
P31
EEPD
Input/Output
EEPROM serial data input/output
88
P32
EEPK
Output
EEPROM serial clock output
89
P33
P33
Output
Sled motor control spare
90
P34
ELON
Output
Remote control EL light control output
91
T100
CIN
Input
Track cross signal detection input
92
P36
PHOLD
Output
Dry cell power ON holding output
93
P37
PCNT1
Output
Power IC VREF supply control output
94
TEST/VPP
VPP
—
TEST/F-ROM write power input
95
P90
PCNT2
Output
Power IC VCC supply control output
96
P91
CKSTP
Output
Main clock stop control output
97
P92
DISCIN
Input
Disc insertion detection input
98
P93
INNSW
Input
Mechanism inner SW position detection input
99
P94
VBATC
Output
Constant voltage servo reference power selection
100
P95
PDCNT
Output
PD current control output for inner detection
IC401 RH-iX2677AF03 (IX2677AF): System Microcomputer (2/2)
Pin No.
Function
Port Name
Terminal Name Input/Output
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
IC402 VHiS29L294A-1 (S29L294A): E
2
-PROM
1
CS
Chip selection input
2
SK
Serial clock input
3
DO
Serial data output
4
DI
Serial data input
5
GND
Ground
6
PROTECT
Memory protect control input
7*
NC
Not used
8
VCC
Power
Pin No.
Terminal Name
Function
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Summary of Contents for MD-S301
Page 44: ...MD S301 S301W 44 M E M O ...