Sharp MD-X7H Service Manual page 119

IC901 RH-iX2679AFZZ:System Control Micon(iX2679AF) (3/3)
Pin No. Terminal Name
74 COIN
75 CQCK
76 RES
77 WRQ
78 DRF
79 SL+
80 SL-
81 PU IN
82 MUTE
83 MIC MUTE
84 S. MUTE
85 L. MUTE
86 RLY
87 POWER
88 DIG._B
89 DIG._A
90 JOG._B
91 JOG._A
92 CCB-CE
93 CCB-DO
94 CCB-DI
95 CCB-CL
96 FAN MOTOR
97 P. DOWN
98* Not used
99 TUNER MUTE
100 —
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Port Name Input/Output
SO0 Output
SCK0 Output
P80 Output
P81 Input
P82 Input
P83 Output
P84 Output
P85 Input
P86 Output
P87 Output
P40 Output
P41 Output
P42 Output
P43 Output
P44 Output
P45 Output
P46 Input
P47 Input
P50 Output
P51 Input
P52 Output
P53 Output
P54 Output
P55 Input
P56 Output
P57 Output
VSS —
Serial output of command data to CD DSP
Serial clock output to CD DSP
Reset output to CD DSP element
Standby input of sub-code Q output
RF level detection input (DETECT RF)
Slide feed signal +
Slide feed signal -
Pickup innermost periphery detection switch input Innermost periphery = L
CD MUTE output ON state: H output, OFF state: L output
MIC mute output of AUDIO system ON state: H output, OFF state: L output
System mute output of AUDIO system
ON state: H output, OFF state: L output
Line mute output of AUDIO system
ON state: H output, OFF state: L output
Relay ON/OFF control ON state: H output, OFF state: L output
Power ON/OFF control ON state: H output, OFF state: L output
Control output of 74HC153
Control output of 74HC153
JOG dial input B
JOG dial input A
Chip enable output to AUDIO/PLL/RDS element of CCB communication
Serial data input from PLL/RDS element of CCB communication
Serial data output to AUDIO/PLL/RDS element of CCB communication
Serial clock output to AUDIO/PLL/RDS element of CCB communication
Motor control for radiation fan
H pulse is output periodically in the MD PLAY or REC PLAY mode.
Power failure detection output to MD microcomputer
Since this terminal is not used, it is open.
TUNER MUTE control
ON state: H output, OFF state: L output
Ground potential To be connected to VSS
– 83 –
Function
MD-X8H