– 82 –
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
Subcode data request signal output
19
SOFT-TEST
O
Software test port
20
AC-CUT
I
Back up signal input
21
RDS-INT
I
Not used
22
RDS-DATA
I
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
O
Subcode Q data input
35
—
–
Not used
36
SQ-CLK
O
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
Pin No.
Pin Name
I/O
Function
6-16.
IC PIN FUNCTION DESCRIPTION
MAIN BOARD IC301 µPD780018Y (MAIN CONTROL)
Summary of Contents for HCD-D590 - Compact Disk Deck System
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