Sony MDX-CA680 Service Manual page 48

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