Ic Description - Aiwa NSX-WK790 Service Manual

IC DESCRIPTION

IC, LC876572V-5L45
Pin No.
Pin Name
1 CLK
2 DATA
3 STB (M)
4 O-LED
5 STB (SHIFT)
6 RYM-CS
7 PLL-CE
8 GEQ-CE
9 O-CLK SHIFT
10 I-TM-BASE
11 RESET
12 I-DISH
13 I-HP-MUTE
14 VSS 1
15 CF 1
16 CF 2
17 VDD 1
18 I-HOLD
19 I-KEY-1
20 I-KEY-2
21 I-KEY-3
22 I-CD SW
23 I-RTVR
24 I-JOG
25 I-MIC
26 I-TU-SIG / MS
27 I-SPEANA
28 RDS-CLK
29 I-RMC
30 ~ 42 G13 ~ G1
43 ~ 45 P36 ~ P34
46 VDD3
47 SPEANA-A / P33
48 SPEANA-B / P32
49 SPEANA-C / P31
50 RHYM / P30
51 –VP
52 P29 / AM-ST
53 P28 / LW
54 P27 / SW
I/O
O CLOCK output for MAIN,FRONT PWB.
O DATA output for MAIN, FRONT PWB.
O Data latch strobe output for MAIN PWB.
O LED ON/ OFF output.
O Latch strobe output for FRONT shift register.
O Latch strobe output for RHYTHM IC.
O PLL IC chip enable output.
O GEQ IC chip enable output. (Not connected)
O TUNER CLOCK SHIFT output.
I REFERENCE CLOCK input for timer watch.
I Reset input.
I CD turntable photo sensor A/D converter input.
I Headphone input for MUTE by PROLOGIC.
— GND.
—
9.43MHz oscillator circuit.
—
— Power supply input.
I Power failure detection input.
I
I KEY input.(A/D)
I
I CD mechanical switch A/D converter input.
I Rotary volume A/D level input.
I JOG dial A/D level input.
I Microphone input for AUTO VF.
I Tuner signal and deck music sensor signal input.
I A/D input for spectrum analyzer display.
I Tuner RDS clock input (Not used).
I System remote control signal input.
O FL GRID output G13 ~ G1.
O FL SEGMENT output P36 ~ P34.
— Power supply input.
O Spectrum analyzer band switching ouput A / FL segment P33 output.
O Spectrum analyzer band switching ouput B / FL segment P32 output.
O Spectrum analyzer band switching ouput C / FL segment P31 output.
I/O RHYTHM input to diode / FL segment P30 output.
— Power supply input for FL display.
O FL segment P29 output / AM-ST input to diode (Not connected).
O FL segment P28 output / LW input to diode (Not connected).
I/O FL segment P27 output / SW input to diode.
43
Description