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XR-CA600/CA600V/CA600X
6-11. IC PIN FUNCTION DESCRIPTION• MAIN BOARD IC501 MN101C49KTF (SYSTEM CONTROLLER)
Pin No. Pin Name I/O Description
1 VREF– IReference 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”)
4KEYIN1 IKey input terminal (A/D input) LSW902, LSW905 to LSW911, S902 to S905
(MENU, SOUND, ENTER, S SCROLL, PTY D DISPLAY, LIST, AF, TA, > M SEEK+,
. m SEEK–, DISC/PRESET+, DISC/PRESET– keys input)
5KEYIN0 IKey input terminal (A/D input) LSW901, LSW903, LSW904, LSW914 to LSW919, S906, S907
(OFF, SOURCE, MODE o, SHUF 6, 5, 4, 3 REP, 2, 1 keys input)
6RCIN0 I Rotary remote commander key input terminal (A/D input)
7QUALITY I Noise level detection signal input at SEEK mode (A/D input)
8MPTH I Multi-path detection signal input from the RDS decoder (IC51) (A/D input)
9 DSTSEL I Destination setting terminal
“L”: XR-CA600X, center voltage: XR-CA600, “H”: XR-CA600V
10 VREF+ IReference 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 ISelection 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 (IC900)
19 LCDCE O Chip enable signal output to the liquid crystal display driver (IC900) “H” active
20 LCDCKO O Serial data transfer clock signal output to the liquid crystal display driver (IC900)
21 NCO O Not used (open)
22 SIRCS_RESET O SIRCS reset signal output terminal Not used (open)
23 LCUBE_SEL I Destination setting terminal “H”: L-cube model Fixed at “L” in this set
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 IInput 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 IBattery detection signal input from the SONY bus interface (IC581)
“L” is input at low voltage
29 SIRCS ISIRCS remote control signal input from the remote control receiver (IC971)
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)