— 84 —
6-28. IC PIN FUNCTION DESCRIPTION
1 TA-MUTE O Line mute signal output
2 DBFB-H/L O DBFB H/L select signal output
3 427-LT O Latch signal output for IC201 (62427)
4 KCON-LT O
Not used
5 KCON-ON/OFF O
6 F-RELAY O Front speaker relay control output
7 R-RELAY O
Not used
8 PL-RELAY O
9 TEST I Connected ground
10 X2 O
X’tal (5MHz)
11 X1 I
12 VDD – Power supply (+5V)
13 XT2 O
X’tal (32.768 KHz)
14 XT1 I
15 RESET I Reset signal input
16 INT/IN I
Connected ground
17 INT/IN/OUT I
18 SCOR O Sub code data request signal output
19 SOFT-TEST O Software test port
20 AC-CUT I Back up signal input
21 RDS-INT I RDS signal input
22 RDS-DATA I RDS data input
23 VDD – Power supply (+5V)
24 AVDD I Analog reference voltage input
25 ADJ I CD adjust point port
26 A-SHUT I A Deck reel pulse detector
27 B-SHUT I B Deck reel pulse detector
28 B-HALF I Half detector signal input
29 CLK-CHECK I Connected ground
30 SPEC-IN I Version select signal input
31 ADJ 2 I Connected ground
32 DEMO-CHANGE I DEMO H/L select signal input
33 AVss – Ground
34 SQ-DATA-IN I Sub code Q data input
35 — – Not used
36 SQ-CLK I Sub code Q data clock input
37 SW-ON/OFF O Not used
38, 39 FUNC 1, 2 I Connected ground
40 Vss – Ground
41 VOL-LAT O
Not used
42 PL-LAT O
43 COM-DIN I Connected ground
44 COM-DOUT O Common serial data output
45 COM-CLK O Common serial clock output
46 CD-POWER O CD power on signal output
47 CD-DATA O CD data output
48 CD-CLOK O CD clock output
49 MSM-CMD O Not used
50 MSM-BUSY I Connected ground
Pin No. Pin Name I/O Function
MAIN BOARD IC301 µPD780018Y (MAIN CONTROL)
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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