Service manual
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MD-X8
IC901 RH-iX2679AFZZ:System Control Micon(iX2679AF) (3/3)
74 COIN SO0 Output Serial output of command data to CD DSP
75 CQCK SCK0 Output Serial clock output to CD DSP
76 RES P80 Output Reset output to CD DSP element
77 WRQ P81 Input Standby input of sub-code Q output
78 DRF P82 Input RF level detection input (DETECT RF)
79 SL+ P83 Output Slide feed signal +
80 SL- P84 Output Slide feed signal -
81 PU IN P85 Input Pickup innermost periphery detection switch input Innermost periphery = L
82 MUTE P86 Output CD MUTE output ON state: H output, OFF state: L output
83 MIC MUTE P87 Output MIC mute output of AUDIO system ON state: H output, OFF state: L output
84 S. MUTE P40 Output System mute output of AUDIO system
ON state: H output, OFF state: L output
85 L. MUTE P41 Output Line mute output of AUDIO system
ON state: H output, OFF state: L output
86 RLY P42 Output Relay ON/OFF control ON state: H output, OFF state: L output
87 POWER P43 Output Power ON/OFF control ON state: H output, OFF state: L output
88 DIG._B P44 Output Control output of 74HC153
89 DIG._A P45 Output Control output of 74HC153
90 JOG._B P46 Input JOG dial input B
91 JOG._A P47 Input JOG dial input A
92 CCB-CE P50 Output Chip enable output to AUDIO/PLL/RDS element of CCB communication
93 CCB-DO P51 Input Serial data input from PLL/RDS element of CCB communication
94 CCB-DI P52 Output Serial data output to AUDIO/PLL/RDS element of CCB communication
95 CCB-CL P53 Output Serial clock output to AUDIO/PLL/RDS element of CCB communication
96 FAN MOTOR P54 Output Motor control for radiation fan
H pulse is output periodically in the MD PLAY or REC PLAY mode.
97 P. DOWN P55 Input Power failure detection output to MD microcomputer
98* Not used P56 Output Since this terminal is not used, it is open.
99
TUNER MUTE
P57 Output TUNER MUTE control
ON state: H output, OFF state: L output
100 — VSS — Ground potential To be connected to VSS
Pin No.
FunctionTerminal Name
Input/Output
Port Name
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.