Aiwa XS-V30 Service Manual page 24

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