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PANEL BOARD IC601 TMP87CM74AF-6671
Pin No.
Pin Name
I/O
Function
1
LED3
O
LED drive signal output terminal Not used (open)
2
LED4
O
LED drive signal output terminal Not used (open)
3
LED5
O
LED drive signal output terminal (DISC 3)
4
LED6
O
LED drive signal output terminal (DISC 2)
5
LED7
O
LED drive signal output terminal (DISC 1)
6
LED8
O
LED drive signal output terminal (ENTER, GROOVE)
7
VSS
—
Ground terminal
8
X-OUT
O
System clock output terminal (8 MHz)
9
X-IN
I
System clock input terminal (8 MHz)
10
RESET
I
System reset signal input from the reset signal generator (IC502) “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
11
LED9
O
LED drive signal output terminal (JOG)
12
LED10
O
LED drive signal output terminal (NON-STOP, +
)
, –
0
)
13
TEST
I
Connected to ground
14
LED11
O
LED drive signal output terminal Not used (open)
15
LED12
O
LED drive signal output terminal Not used (open)
16
LED13
O
LED drive signal output terminal (CD
(
P
)
17
LED14
O
LED drive signal output terminal (TAPE B
(
/
9
)
18
LED15
O
LED drive signal output terminal (TAPE A
(
/
9
)
19
VOL-A
I
Rotary encoder pulse input from the S602 (VOLUME)
20
VOL-B
I
Rotary encoder pulse input from the S602 (VOLUME)
21
JOG-A
I
Jog dial pulse input from the S601 (JOG)
22
JOG-B
I
Jog dial pulse input from the S601 (JOG)
23
SCL
I/O
Communication data reading clock signal input or transfer clock signal output with the system
controller (IC501)
24
SDA
I/O
Communication data bus with the system controller (IC501)
25
L.SEL
O
LED selection signal output terminal
26
KEY-0
I
27
KEY-1
I
Key input terminal (A/D input) (S619 to 625)
FLASH, NON-STOP, –
0
, ENTER, +
)
, DBFB, GROOVE keys input
28
KEY-2
I
29
KEY-3
I
Key input terminal (A/D input) (S618, 656 to 659)
LOOP,
r
REC,
P
PAUSE, HI-DUB, CD SYNC, keys input
30
MODEL
I
Destination setting terminal
31
SPEANA
RESET
O
Reset signal output to the spectrum analyzer band-pass filter (IC603) “H”: reset
32
L+R
I
Spectrum analyzer drive signal input from the spectrum analyzer band-pass filter (IC603)
(for VACS, non-stop signal)
33
SIRCS
I
Remote control signal input from the remote control receiver (IC602)
34
SPEANA-1
I
Spectrum analyzer drive signal input from the spectrum analyzer band-pass filter (IC603)
(for low frequency)
35
SPEANA-2
I
Spectrum analyzer drive signal input from the spectrum analyzer band-pass filter (IC603)
(for low and middle frequency)
(FLUORESCENT INDICATOR TUBE DRIVE, LED DRIVE, KEY CONTROL)
Key input terminal (A/D input) (S631 to 642)
TUNER/BAND, CD
(
P
, TAPE B
(
/
9
, TAPE A
(
/
9
,
1
/
u
(POWER), DISC 1/2/3,
DISC SKIP/EX-CHANGE,
6
keys input
Key input terminal (A/D input) (S604 to 610, 614 to 617)
FILE SELECT, SURROUND, KARAOKE PON/MPX,
p
, TIMER SELECT, CLOCK/
TIMER SET, DISPLAY/DEMO, FUNCTION, EDIT, PLAY MODE, REPEAT keys input
Summary of Contents for HCD-GRX5
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