– 88 –
Pin No.
Pin Name
I/O
Function
• IC701 MASTER CONTROL (uPD780018YGF-028-3BA)
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
Latch signal output for key control
5
KCON-ON
O
Key control ON/OFF signal output
6
F-RELAY
O
Front speaker relay control output (Not used)
7
R-RELAY
O
Rear speaker relay control output
8
PL-RELAY
O
Not used
9
TEST
I
Connected to 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 to ground
17
INT/IN/OUT
I
18
SCOR
O
Subcode data request signal output
19
SOFT-TEST
O
Software test port
20
AC-CUT
I
Back up signal input
21
RDS-INT
I
RDS data interrupt input (Connected to ground)
22
RDS-DATA
I
RDS data interrupt input (Not used)
23
VDD
–
Power supply (+5V)
24
AVDD
I
Analog reference voltage input.
25
ADJ
I
CD adjust point port
Normal “H”
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 to ground
30
SPEC-IN
I
Version select signal input
31
ADJ 2
I
Connected to ground
32
DEMO-CHANGE
I
DEMO H/L select signal input (Connected to ground)
33
AVSS
–
Ground
34
SQ-DATA-IN
I
Subcode Q data clock input
35
—
I
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 to ground
40
VSS
–
Ground
41
VOL-LAT
O
Latch signal to erectrial volume (IC604)
42
PL-LAT
O
Latch signal to pro-logic (IC601, 602)
43
COM-DIN
I
Connected to 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-CLK
O
CD clock output
49
MSM-CMD
O
Not used
50
MSM-BUSY
I
Connected to ground
