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XR-CA400/CA410
2222
6-8. IC PIN FUNCTION DESCRIPTION
• MAIN BOARD IC501 MN101C49KTC (SYSTEM CONTROLLER)
Pin No. Pin Name I/O Description
1 VREF–
I
Reference voltage (0V) input terminal (for A/D converter)
2 VSM I
FM and AM signal meter voltage detection signal input from the FM/AM tuner unit (TU1)
(A/D input)
3 NIL I Not used (fixed at “L”)
4
KEYIN1
I
Key input terminal (A/D input) S907, S908, LSW905 to LSW915
(SEEK/AMS – . m, SEEK/AMS + > M, MBP, D-BASS D, DSPL, MTL PTY, TA,
ATA 6, BL SKIP 5, SHUF 4, REP 3, 2 DISC +, 1 DISC– keys input)
5
KEYIN0
I
Key input terminal (A/D input) S901 to S906, LSW901 to LSW904 (OFF, SRC SOURCE, +
(VOLUME), – (VOLUME), MODE o, SEL, Z, ATF, BTM SENS, AF keys input)
6
RCIN0
I Rotary remote commander key input terminal (A/D input)
7
QUALITY
I Noise level detection signal input at SEEK mode (A/D input)
8
MPTH
I Multi-path detection signal input from the RDS decoder (IC51) (A/D input)
9 NIL I Not used (fixed at “L”)
10 VREF+
I
Reference voltage (+5V) input terminal (for A/D converter)
11
VDD —
Power supply terminal (+5V)
12
OSCOUT
O Main system clock output terminal (18.432 MHz)
13
OSCIN
I Main system clock input terminal (18.432 MHz)
14
VSS —
Ground terminal
15
XI I
Sub system clock input terminal (32.768 kHz)
16
XO O
Sub system clock output terminal (32.768 kHz)
17 MMOD
I
Selection signal of memory mode input terminal “L”:single chip mode (fixed at “L”)
18
LCDSO
O Serial data output to the liquid crystal display driver (IC901)
19
LCDCE
O Chip enable signal output to the liquid crystal display driver (IC901) “H” active
20
LCDCKO
O Serial data transfer clock signal output to the liquid crystal display driver (IC901)
21 to 23 NCO O Not used (open)
24 SYSRST O
Reset signal output to the SONY bus interface (IC581) “L”: reset
25 BUSON
O Bus on/off control signal output to the SONY bus interface (IC581) “L”: bus on
26 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”
27 DAVN I
Synchronized detection signal of RDS data block input from the RDS decoder (IC51)
“H” active
28 BUIN
I
Battery detection signal input from the SONY bus interface (IC581)
“L” is input at low voltage
29
SIRCS
I
SIRCS remote control signal input terminal Not used (open)
30, 31 NIL I Not used (fixed at “L”)
32 NIH I Not used (fixed at “H”)
33 RESET I
System reset signal input from the reset signal generator (IC551) and reset switch (S551)
“L”: reset “L” is input for several 100 msec after power on, then it changes to “H”
34
TUNON O Tuner system power supply on/off control signal output “H”: tuner power on
35
BEEP O Beep sound drive signal output to the power amplifier (IC751)
36 PW_ON
O Main system power supply on/off control signal output “H”: power on
37
NCO I Not used (open)
38 ACCIN
I Accessory detection signal input “L”: accessory on
39
NCO O Not used (open)
40
TELATT I Telephone attenuate signal input At input of “H”, the signal is attenuated by –20 dB
41
NIH I Not used (fixed at “H”)
42 BUSSO
O Serial data output to the SONY bus interface (IC581)
43 BUSSI
I Serial data input from the SONY bus interface (IC581)
Pin No. Pin Name I/O Description
44 BUSCKO
O Serial data transfer clock signal output to the SONY bus interface (IC581)
45 IIC SIO I/O
Two-way data IIC bus with the FM/AM tuner unit (TU1), RDS decoder (IC51) and electrical
volume (IC331)
46
NCO O Not used (open)
47 IIC CKO O
IIC bus clock signal output to the FM/AM tuner unit (TU1), RDS decoder (IC51) and electrical
volume (IC331)
48 AMPON O
Standby on/off control signal output to the power amplifier (IC751)
“L”: standby mode, “H”: amplifier on
49 AMPATT
O Muting on/off control signal output to the power amplifier (IC751) “L”: muting on
50 ATT
O Audio line muting on/off control signal output “H”: muting on
51
NCO O Not used (open)
52 AMSON O
Tape auto music sensor control signal output to the CXA2509AQ (IC301)
“L”: auto music sensor on
53 F/ROUT O
Forward/reverse control signal output to the CXA2509AQ (IC301)
“L”: reverse direction, “H”: forward direction
54
MTLON O METAL on/off control signal output to the CXA2509AQ (IC301) “H”: METAL on
55 TAPATT O
Tape muting on/off control signal output to the CXA2509AQ (IC301) “H”: muting on
Active at ATA, FF/REW mode
56
NCO O Not used (open)
57 AMSIN I
Whether a music is present or not from CXA2509AQ (IC301) is detected at auto music sensor
“L”: music is present, “H”: music is not present
58
NCO O Not used (open)
59 VOLATT
O
Pre amplifier muting on/off control signal output to the electrical volume (IC331)
“L”: muting on
60 to 64
NCO O Not used (open)
65
FLASH_W
I
Internal flash memory data write mode detection signal input terminal “L”: data write mode
Not used (open)
66 TESTIN
I Setting terminal for the test mode “L”: test mode, normally fixed at “H”
67 RCIN1
I Rotary remote commander shift key input terminal “L”: shift key on
68 to 73
NCO O Not used (open)
74 EEP SIO I/O Two-way data bus for tuner EEPROM with the FM/AM tuner unit (TU1)
75
EEP CKO I/O
Two-way bus clock signal for tuner EEPROM with the FM/AM tuner unit (TU1)
76
COLSEL
I
Setting terminal for the illumination color
“L”: amber (XR-CA410: AMBER), “H”: green (XR-CA400/CA410: GREEN)
77 to 81
NCO O Not used (open)
82 AD ON
O
A/D converter power control signal output terminal
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
83
ILLON O
Power on/off control signal output of the illumination LED and liquid crystal display driver
(IC901) “H”: power on
84 REL I
Rotation detection signal input from supply reel sensor and take-up reel sensor on the mechanism
deck
85 POS3 I
86 POS2 I
87 POS0 I
88 POS1 I
89 LMLOD O
Motor drive signal output to the loading motor drive (IC351) “H” active
(For the loading direction and forward side operation) *1
90 LMEJ O
Motor drive signal output to the loading motor drive (IC351) “H” active
(For the eject direction and reverse side operation) *1
Tape position (EJECT/FF/REW/REV/
FWD mode) detect input from the tape
operation switch on the deck mechanism
POS3: “L”: REV and EJECT mode, “H”: others mode
POS2: “L”: REW mode, “H”: others mode
POS0: “L”: EJECT mode, “H”: others mode
POS1: “L”: FF and FWD mode, “H”: others mode