Aiwa XS-V30, Service Manual

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IC DESCRIPTION
1 O-CD CLK O CD IC control clock output.
2 O-LEDSTB O STB signal make clock and data effective.
3 O-DATA O Data output.
4 O-CLK O Clock output.
5 O-CDDATA O CD IC control data output.
6 O-INI-SCAN O Initial scan output.
7 O-POWER O Power control ON/OFF output.
8 I-DRF/I-STEREO I RF (radio frequency) detect/Tuner stereo detect input.
9 I-RDSDATA I RDS IC data input. (Not used)
10 O-STB — Not used.
11 RES I Reset input for MICON.
12 I-JOG I Dial jog rotary encoder input.
13 I-VOL I Volume rotary encoder input.
14 VSS1 — Connected to ground.
15 CF1 I Oscillator circuit input.
16 CF2 O Oscillator circuit output.
17 VDD1 — Digital power supply pin.
18 I-HOLD I Power failure detected input.
19 I-KEY1 I Key A/D input 1.
20 I-KEY2 I Key A/D input 2.
21 I-KEY3 I Key A/D input 3.
22 I-SPEANA-L I Spectrum analyser BPF switching control L input.
23 I-SPEANA-M I Spectrum analyser BPF switching control M input.
24 I-SPEANA-H I Spectrum analyser BPF switching control H input.
25 I-TU-SIG/I-MIC I Tuner signal input (not used)/MIC input.
26 I-CDSW I CD mecha switch input.
27 I-RDSCLK/I-WRQ I RDS IC clock input (not used)/CD WRQ input.
28 I-TM-BASE I Reference clock input for timer switch.
29 I-RMC I System remote control signal input. "L" : ACTIVE.
30 ~ 43 O-S1 ~ O-S14 O LCD segment S1 ~ S14 output.
44 I-VF/O-S15 I/O VF select diode input/LCD segment S15 output.
45 I-KEYCON/O-S16 I/O K-CON select diode input/LCD segment S16 output.
46 I-ECO-OFF/O-S17 I/O ECO-OFF data input (not used)/LCD segment S17 output.
47 I-AM9K/10K/O-S18 I/O AM9K/10K select diode input (not used)/LCD segment S18 output.
48 I-KARAOKE/O-S19 I/O Karaoke diode input (not used)/LCD segment S19 output.
49 I-SW/O-S20 I/O SW diode input/LCD segment S20 output.
50 I-LW/O-S21 I/O LW diode input (not used)/LCD segment S21 output.
51 I-RDS/O-S22 I/O RDS input to diode (not used)/LCD segment S22 output.
52 I-DEMO/O-S23 I/O Demo (on the stop) diode input (not used)/LCD segment S23 output.
53 I-BU2099/O-S24 I/O Not used/LCD segment S24 output.
54 VDD2 — Digital power supply pin.
55 VSS2 — Connected to ground.
Description Pin No. Pin Name I/O
IC, LC877264V-5Y59
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9 9
2
8 9
4 2
9 8
TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
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