5
CIRCUIT DESCRIPTION
KAF-1010/3010R
Pin No.
Pin Name
I / O
Description
1
DATA
O
Output of DATA signal for control of input selector.
2
CLOCK
O
Output of CLOCK signal for control of input selector.
3
ST
O
Output of STROBE signal for control of input selector.
4
N C
−
No use.
5
8/16
O
8bit/16bit selector.
6
1010/3010R
O
Model selector.
7
PROTECT
I
Protection detector.
8
REMOCON
I
Remote control signal input.
9
STANDBY
O
Standby led control signal output.
10
PHONO
O
Phono led control signal output.
11
C D
O
CD led control signal output.
12
TUNER
O
Tuner led control signal output.
13
TAPE1
O
Tape1 led control signal output.
14
MD
O
MD led control signal output.
15
LOUDNESS
O
Loudness led control signal output.
16
MUTE
O
Mute led control signal output.
17
GND
−
Gnd.
18
RESET
I
Reset signal input.
19,20
XIN,OUT
I/O Crystal connecting port for clock generation.
21
VSS
−
Gnd.
22
VAREF
−
Analog reference voltage input.
23
KEY
I
A/D key input.
24
POW RE
O
Power relay control signal output.
25
VOL UP
O
Motor volume control.
26
VOL DOWN
O
Motor volume control.
27
MUTE
O
Selector mute control.
28
SP
O
Speaker relay control.
29
LOUDNESS
O
Loudness control.
30,31
EN
I
Rotary encoder signal for input selector.
32
S BUSY
I/O System serial BUSY signal interface.
33
S DATA
I/O System serial DATA signal interface.
34
R MUTE
O
Rec mute circuit control signal output.
35,36
N C
−
No use.
37
VOL LED
O
Volume led control.
38
S DIRECT
O
S.DIRECT led control signal output.
39
POW OFF
I
Power off signal input.
40,41
N C
−
No use.
42
VDD
−
Power 5V).
Microprocessor : TMP87C846N (IC501)
KAF-1010(K)
1P
98.4.25
3:57
PM
y [ W
10
