Ic Pin Function Description - Sony XR-CA610X Service Manual

XR-CA610X
QQ
3 7 63 1515 0

6-13. IC PIN FUNCTION DESCRIPTION

• MAIN BOARD IC501 MN101C49KTE (SYSTEM CONTROLLER)
Pin No. Pin Name
1 VREF–
2 VSM
3 NIL
KEYIN1
4
KEYIN0
5
RCIN0
6
7, 8 NIL
9 DSTSEL
10 VREF+
VDD
11
OSCOUT
12
13 OSCIN
VSS
14
XIN
15
XOUT
16
17 MMOD
TE
L 13942296513
LCDSO
18
LCDCE
19
LCDCKO
20
21 to 23 NCO
24 SYSRST
25 BUSON
26 KEYACK
27
NIL
28 BUIN
29
SIRCS
30, 31 NIL
32 NIH
33 RESET
34
TUNON
35
BEEP
36 PW_ON
37 NCO
38 ACCIN
www
39
NCO
40
TELATT
41 NIH
.
42 BUSSO
43 BUSSI
32
http://www.xiaoyu163.com
I/O
I
Reference voltage (0V) input terminal (for A/D converter)
FM and AM signal meter voltage detection signal input from the FM/AM tuner unit (TU1)
I
(A/D input)
I Not used (fixed at "L")
Key input terminal (A/D input) LSW502 to LSW510, LSW514
I (MENU, DISC/PRESET+, DISC/PRESET–, > SEEK+ M, . SEEK– m, SOUND,
ENTER, DSPL, LIST, MODE o keys input)
Key input terminal (A/D input) LSW501, LSW513, LSW515 to LSW522 (OFF, SOURCE, EQ7,
I
POS, 6, 5, 4, 3, SHUF 2, REP 1 keys input)
I Rotary remote commander key input terminal (A/D input)
I Not used (fixed at "L")
I Destination setting terminal (A/D input) Fixed at center voltage in this set
I
Reference voltage (+5V) input terminal (for A/D converter)
—
Power supply terminal (+5V)
O Main system clock output terminal (18.432 MHz)
I Main system clock input terminal (18.432 MHz)
—
Ground terminal
I
Sub system clock input terminal (32.768 kHz)
O
Sub system clock output terminal (32.768 kHz)
I Selection signal of memory mode input terminal "L":single chip mode (fixed at "L")
O Serial data output to the liquid crystal display driver (IC501)
O Chip enable signal output to the liquid crystal display driver (IC501) "H" active
O Serial data transfer clock signal output to the liquid crystal display driver (IC501)
O Not used (open)
O Reset signal output to the SONY bus interface (IC581) "L": reset
O Bus on/off control signal output to the SONY bus interface (IC581) "L": bus on
Input of acknowledge signal for the key entry Acknowledge signal is input to accept function
I
and eject keys in the power off status On at input of "H"
I Not used (fixed at "L")
Battery detection signal input from the SONY bus interface (IC581)
I
"L" is input at low voltage
I
SIRCS remote control signal input terminal Not used (open)
I Not used (fixed at "L")
I Not used (fixed at "H")
System reset signal input from the reset signal generator (IC551) and reset switch (S551)
I
"L": reset "L" is input for several 100 msec after power on, then it changes to "H"
O Tuner system power supply on/off control signal output "H": tuner power on
O Beep sound drive signal output to the power amplifier (IC751)
O Main system power supply on/off control signal output "H": power on
O Not used (open)
I Accessory detection signal input "L": accessory on
O Not used (open)
x ao
I Telephone attenuate signal input At input of "H", the signal is attenuated by –20 dB
y
I Not used (fixed at "H")
i
O Serial data output to the SONY bus interface (IC581)
I Serial data input from the SONY bus interface (IC581)
http://www.xiaoyu163.com
8
Description
Q Q
3 6 7 1 3
u163
.
2 9 9 4 2 8
1 5 0 5 8 2 9 9 4
m
co
9 9
2 8 9 9