Onkyo TX-2100 - Page 21

TX-2100
MICROPROCESSOR-TERMINAL DESCRIPTIONS
Pin No. Function I/O Description
1-7 7G-1G O Grid control output pin
8 VDD Power supply pin
9 CL O Clock output pin for selector switch and PLL IC.
10 DATA O Data output pin for selector switch and PLL IC.
11 PLL O Chip enable output pin for PLL IC.
14 STB O Chip enable output pin for selector switch IC.
15
㪭㪦㪣㩷㪬㪧
O Volume control output pin
16 VOL DOWN O Volume control output pin
17 RST I System reset input pin
20 AVSS Ground pin for A/D converter
21 MODE2 I Mode initializing pin
22 AREA I Band area set initializing pin
23 MADE1 I Mode initializing pin
24-28 K4-K0 I Operation key connection pin
29 AVDD A/D converter power supply pin
30 AVREF Reference voltage input pin for A/D converter
33 VSS Ground pin
34,35 X1,X2 Main system clock pin. Connect the ceramic oscillator.
36 T-MUT O Muting control output pin for tuner section
37 F MUT O Muting control output pin for amplifier section
38 SPBRL O Speaker relay B control output pin
39 SPARL O Speaker relay A control output pin
40 POWER O Power relay control output pin
41 SYSOUT O System code output pin
45 POFF I Power failure detection input pin
46 SYSIN I System code input pin
47 REMIN I Remote control signal input pin
50 STBY O Standby indicator control pin
52 VDD Power supply pin
53 ST I Stereo broadcast detection input pin
54 SD I Broadcast detection pin
58 PROTECT I Protection circuit detection pin
59-70 P18-P5 O Segment control output pin
71 VLOAD Pull-down resistor connection pin
72-75 P4-P1 O Segment control output pin
76-80 12G-8G O Grid control output pin