Sharp MD-MS701H Service Manual page 44

Portable minidisc player/recorder
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MD-MS701H/MS702H
IC401 RH-iX2680AF03(IX2680AF):System Microcomputer (2/2)
Port Name
Terminal Name Input/Output
Pin No.
60
P44
LDON
61
P45
OPICGA
62
P46
RFLAT
63
P47
RACLK
64
P50
RADAT
65
P51
PBLAT
66
P52
RCLAT
67
P53
PBOPON
68
P54
MCPGIN
69
P55
INPGIN
70
P56
INPGCK
71
P57
RCPCNT
72
VSS
VSS
73
P60
EMPHO
74
P61
HPLAY
75
P62
HREC
76*
P63
RTCCE
77*
P64
RTCWR
78
P65
CEDT
79
P66
CECK
80
P67
EPCS
81
VDD
VDD
82
T15
SPIN
83*
P101
P101
84*
P102
TEST0
85*
P103
TEST1
86
P30
PSLINN
87
P31
PSLDCI
88
P32
PSLDRY
89*
P33
P33
90
P34
ELON
91
T100
CIN
92
P36
PHOLD
93
P37
PCNT1
94
TEST/VPP
VPP
95
P90
PCNT2
96
P91
CKSTP
97
P92
DISCIN
98
P93
INNSW
99
P94
DISCPR
100
P95
PDCNT
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Output
P.U. laser ON/OFF control output
Output
P.U. detection sensitivity selection output
Output
RF amp. IC data latch output
Output
RF/audio IC data clock output
Output
RF/audio IC serial data output
Output
Playback audio IC data latch output
Output
Record audio IC data latch output
Output
Audio IC output stage control output
Input
Mic plug insertion detection input
Input
Line/digital plug insertion detection
Input
Line/digital plug type detection
Output
Record circuit power control output
Output
Ground potential
Output
Audio emphasis control output 0
Input
Main unit PLAY key operation detection input
Input
Main unit REC key operation detection input
Output
Clock IC chip enable control output
Output
Clock IC read/write control output
In/Output
Clock/EEPROM serial data input/output
Output
Clock/EEPROM serial data input/output
Output
EEPROM chip selection output
Output
Positive power supply
Inout
Spindle motor FG pulse detection input
Output
Spare for sled motor control
Input
Test mode setting input 0
Input
Test mode setting input 1
Output
Built-in battery power selection output
Output
DC jack power selection output
Output
Dry cell power selection output
Output
Spare for sled motor control
Output
Remote controller EL light control output
Input
Truck cross signal detection input
Output
Dry cell power ON holding output
Output
Power IC VREF feed control output
Output
Test/R-ROM write power input
Output
Power IC VCC feed control output
Output
Main clock stop control output
Input
Disk insertion detection input
Input
Mechanism inner SW position detection input
Input
Record enable/disable switch detection input
Output
PD current control output for inner detection
– 44 –
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