48
MDX-CA680/CA680X
Pin No.
Pin Name
I/O
Description
42
UNISO
O
Serial data output to the SONY bus interface (IC505)
43
UNISI
I
Serial data input from the SONY bus interface (IC505)
44
UNICKO
O
Serial clock signal output to the MD mechanism controller (IC501) and SONY bus interface
(IC505)
45
IIC SIO
I/O
Two-way data IIC bus with the FM/AM tuner unit (TU10), RDS decoder (IC51) (AEP, UK
models only) and electrical volume (IC401)
46
NCO
O
Not used (open)
47
IIC CKO
O
IIC bus clock signal output to the FM/AM tuner unit (TU10), RDS decoder (IC51) (AEP, UK
models only) and electrical volume (IC401)
48
NCO
O
Not used (open)
49
TUNON
O
Tuner system power supply on/off control signal output to the BA4908 (IC601)
“H”: tuner power on
50
PW ON
O
Main system power supply on/off control signal output to the BA4908 (IC601) “H”: power on
51 to 65
NCO
O
Not used (open)
66
AMPATT
O
Power amplifier muting on/off control signal output to the power amplifier (IC611)
“L”: muting on
67
AMPON
O
Standby on/off control signal output to the power amplifier (IC611)
“L”: standby mode, “H”: ampifier on
68
NCO
O
Not used (open)
69
ATT
O
Audio line muting on/off control signal output “H”: muting on
70
VOLATT
O
Pre amplifier muting on/off control signal output to the electrical volume (IC401)
“L”: muting on
71 to 75
NCO
O
Not used (open)
76
COLSW
I
Setting terminal for the illumination color “L”: 2 colors, “H”: 1 color
MDX-CA680: fixed at “L”, MDX-CA680X: fixed at “H”
77
COLSEL
I
Setting terminal for the illumination color “L”: amber, “H”: green
MDX-CA680: not used (fixed at “L”), MDX-CA680X: fixed at “H”
78
DIMSEL
I
Setting terminal for the dimmer “L”: no dimmer, “H”: dimmer in (fixed at “L” in this set)
79 to 85
NCO
O
Not used (open)
86
EEP SIO
I/O
Two-way data EEPROM bus with the FM/AM tuner unit (TU10)
87
EEP CKO
O
EEPROM bus clock signal output to the FM/AM tuner unit (TU10)
88
NCO
O
Not used (open)
89
FLASHW
I
Internal flash memory data write mode detection signal input terminal “L”: data write mode
Not used (fixed at “H”)
90
NS_MASK
O
Discharge control signal output for the noise detection circuit “H”: discharge
91
XKEYON
O
A/D converter power control signal output
When the KEYACK (pin
wh
) that controls reference voltage power for key A/D conversion input
is active, “L” is output from this terminal to enable the input
92
DOORIND
O
LED drive signal output of the MD disc slot illumination and
Z
indicator (LED810, LSW810)
“H”: LED on “H” is output to turn on LED when front panel is opened
93
ILLON
O
Power on/off control signal output of the illumination LED and liquid crystal display driver
(IC900) “H”: power on
94
DOORSW
I
Front panel open/close detection signal input “L” is input when the front panel is closed
95
DAVSS
—
Ground terminal (for D/A converter)
96, 97
RE_IN1, RE_IN0
I
Dial pulse input of the rotary encoder (RE901) (for VOLUME control)
98
RCIN1
I
Rotary remote commander shift key input terminal “L”: shift key on
99
NIL
I
Not used (fixed at “L”)
100
DAVCC
—
Power supply terminal (+5V) (for D/A converter)