Aiwa SIMPLE-2 NSX-WVT99 HR Service Manual page 38

IC DESCRIPTION
IC, LC876572V-5R46
Pin No.
Pin Name
1 CLK
2 DATA
3 STB
4 CS-RHYTHM
5 GEQ-CE
6 HP-MUTE
7 O-POWER
8 PLL-CE
9 O-MUTE
10 I-MIC
11 RESET
12 VOL-JOG
13 MULTI-JOG
14 VSS1
15 CF 1
16 CF2
17 VDD1
18 HOLD
19 ~ 22 KEY 1 ~ 4
23 I-CDSW
24 I-DISH
25 I-SPEANA
26 I-RDSCLK/I-WRQ
27 I-TU-SIG/MS
28 I-TMBASE
29 I-RMC
30 ~ 42 G13 ~ G1
43 ~ 45 P39 ~ P37
46 VDD3
47 P36/SPEANA A
48 P35/SPEANA B
49 P34/SPEANA C
50 P33
51 VP
52 ~ 59 P32 ~ P25
60 P24/NO AC-DEMO
61 P23/CASINO-DEMO
62 P22/NO-ECO
63 P21/NO-RHYTHM
64 P20/AC3-DPL
I/O
O Common serial CLOCK output.
O Common Serial DATA output.
O Common serial STROBE output.
O Rhythm IC chip select output.
O GEQ IC chip enable output.
I Headphone plug-in detect input. (Output "L" at HOLD)
O System power ON/OFF output. (Active "H")
O Tuner PLL IC chip enable output.
O System mute ON/OFF output.
I Auto-VF MIC level special A/D input. (Output "L" at HOLD)
I Reset input.
I Main volume JOG rotary encoder A/D input.
I MULTI JOG rotary encoder A/D input.
– Connected to GND.
– 9.43MHz oscillator circuit.
– Power supply.
I Power supply voltage detect A/D input.
I KEY 1 ~ 4 A/D input. (Output "L" at HOLD)
I CD mechanism SW A/D input. (Output "L" at HOLD)
I CD turntable photo sensor A/D input. (Output "L" at HOLD)
I SPEANA level A/D input. (Output "L" at HOLD)
I TUNER RDS IC CLK (INT2) input / CD WRQ input. (Output "L" at HOLD&INI)
I Tuner tuning signal level A/D input / Deck MS SENS. (Output "L" at HOLD)
I Timebase clock (8Hz) input. (Output "L" at HOLD)
I Remote control signal input. Active: "L". (Output "L" at HOLD)
O FL grid G13 ~ G1 output.
O FL segment P39 ~ P37 output.
– Power supply.
O FL segment P36 output / SPEANA band select output (A).
O FL segment P35 output / SPEANA band select output (B).
O FL segment P34 output / SPEANA band select output (C).
O FL segment P33 output.
– Power supply for FL.
O FL segment P32~ P25 output.
FL segment P24 output / NO AC-DEMO at AC-IN diode input. (No store DEMO
I/O
mode.)
I/O FL segment P23 output / CASINO-DEMO select diode input.
I/O FL segment P22 output / NO-ECO select input.
I/O FL segment P21 output / NO-RHYTHM select diode input.
I/O FL segment P20 output / AC3-DPL select diode input. (Not used.)
Description
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