5
CIRCUIT DESCRIPTION
KAF-1010/3010R
Pin No. Pin Name I/O Description
1DATA O Output of DATA signal for control of input selector.
2CLOCK O Output of CLOCK signal for control of input selector.
3ST O Output of STROBE signal for control of input selector.
4NC −No use.
58/16 O 8bit/16bit selector.
61010/3010R O Model selector.
7PROTECT I Protection detector.
8REMOCON I Remote control signal input.
9STANDBY O Standby led control signal output.
10 PHONO O Phono led control signal output.
11 CD 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 NC −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 NC −No use.
42 VDD −Power supply(+5V).
Microprocessor : TMP87C846N (IC501)
KAF-1010(K)1P 98.4.253:57PM y[W 10
