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XR-M510
Pin No. Pin Name I/O Description
77 BU-IN
I
Battery detection signal input from the SONY bus interface (IC501) and battery detect circuit
“L” is input at low voltage
78 NC O
Not used (open)
79 KEYACK
I
Input of acknowledge signal for the key entry Acknowledge signal is input to accept function
and eject keys in the power off status On at input of “H”
80 AD ON
O
A/D converter power control signal output terminal
When the KEYACK (pin ul) that controls reference voltage power for key A/D conversion input
is active, “L” is output from this terminal to enable the input
81 ACCIN
I Accessory detection signal input terminal “L”: accessory on
82
FLS PWON O
Power on/off control signal output of the illumination LED and liquid crystal display driver
(IC901, 902) “H”: power on
83 PW-ON
O Main system power supply on/off control signal output terminal “H”: power on
84 TESTIN
I Setting terminal for the test mode “L”: test mode, Normally: fixed at “H”
85 RAMBU I
Internal RAM reset detection signal input from the RN5VD33AA (IC603)
Input terminal to check that RAM data are not destroyed due to low voltage
This checking is made within 100 msec after reset
86 HSTX I
Hardware standby input terminal “L”: hardware standby mode Reset signal input in this set
87 MD2 I
Setting terminal for the CPU operational mode (fixed at “L” in this set)
88 MD1 I
Setting terminal for the CPU operational mode (fixed at “H” in this set)
89 MD0 I
Setting terminal for the CPU operational mode (fixed at “H” in this set)
90 RST I
System reset signal input from the reset signal generator (IC602) and reset switch (S901, 902)
“L”: reset “L” is input for several 100 msec after power on, then it changes to “H”
91 VSS —
Ground terminal
92 X0
I Main system clock input terminal (3.68 MHz)
93 X1
O Main system clock output terminal (3.68 MHz)
94 VCC —
Power supply terminal (+5V)
95 ILLIN
I
Auto dimmer control illumination line detection signal input terminal
“L” is input at dimmer detection
96 I-DET
I
Detection signal input from the motor overload detection circuit for the front panel open/close
motor (M601)
“L” is input when the motor current exceeds the specified value
97 MOT–
O
Front panel open/close motor (M601) drive signal (in panel close direction) output to the
BA6288FS (IC502) “H” active *2
98 MOT+
O
Front panel open/close motor (M601) drive signal (in panel open direction) output to the
BA6288FS (IC502) “H” active *2
99 CLOSE SW
I Front panel open/close detect switch input terminal “L” is input when the front panel is closed
100 OPEN SW
I Front panel open/close detect switch input terminal “L” is input when the front panel is opened
101 to 103
NC I Not used (fixed at “H”)
104, 105
DSTSEL1,
DSTSEL2
I
Destination setting terminal (A/D input) *3
106 BOOT
O Serial data output to the liquid crystal display drive controller (IC607)
107 DSP GAIN
O Not used (open)
108 DSP ON
O Power supply on/off control signal output terminal “H”: DSP on Not used (open)
109 NC O
Not used (open)
110
EMPH-IN I Emphasis control signal input terminal Not used (fixed at “L”)
111 PACK SW
I Cassette in/out detect switch (S901) “L”: cassette in
112 4V SEL I
Input terminal of whether line driver is mounted or not is detected
“H”: line driver is not mounted
113 P SEL
I Power select input terminal Not used (fixed at “L”)