Technics SA-EH560 - IC901 Terminal Functions

14.1 IC901 (LC8A524A5N28):/System Control/FL
Drive
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Pin No. Terminal Name I/O Function
1 CHECK O Clock check signal output
2 LC72 DI O PLL data signal output
3 LC72 CE O Chip enable signal output
4 LC72 DO/ST I IF count data/stereo detect signal input
5 LC72 CK O Clock signal output
6 RL1 - Not used, open
7 RL2
8 ST/AV.6CH - Not used, open
9 SEL TUNER - Tuner select signal output
(Not used, open)
10 SEL/ TUNER O Tuner select signal output
11 AC IN I Power failure detect signal input
12 RESET I Reset signal input
13 X IN I Oscillator connected terminal (32.7 kHz)
14 X OUT O
15 VSS - GND terminal
16 XC IN I Oscillator connected terminal (6 MHz)
17 XC OUT O
18 VDD1 I Power supply terminal
19 KEY TU I Operation key signal input
20 KEY KARAOKE I Operation key signal input
21 SH REQ I Request signal input from Sound Processor
22 NC(GND) - Not used, connected to GND
23 VR JOGB I Volume control signal input
24 VR JOGA
25 MIC DET I Microphone connecting detect signal input
(Connected to VDD via resistor)
26 HP SW I Headphone connecting detect signal input
27 RDS CLK I RDS clock signal input
28 RDS DATA I RDS data signal input