Aiwa NSX-BL44EZ Service Manual page 19

IC DESCRIPTION
IC, LC866560W-5R50 <46EZ>, LC866548V-5R49 <Except 46EZ>
Pin No. Pin Name
_______________
1 I-STEREO/I-DRF
______
2 I-IFC/I-SUBQ
3 O-2PB
4 O-POWER
5 O-CD-ON
6 O-PLL_DATA
7 O-RMT
_________
8 O-BIAS
9 O-MUTE
10 O-STB
_________________
11 O-CLK_SFT
12 RESET
13 NC
14 I-DISH
15 VSS1
16 CF1
17 CF2
18 VDD1
__________
19 I-HOLD
20 I-KEY1
21 I-KEY2
22 I-KEY3
23 I-TU_SIG
24 I-CDSW
25 I-SPEANA
26 I-RE_VOL
27 I-WRQ/I-RDS_CLK
28 I-TM_BASE
_________
29 I-RMC
30 ~ 40 G11 ~ G1
41 NC
42 ~ 45 P35 ~ P32
46 VDD3
47 ~ 48 P31 ~ P30
49 P29/O-SPEANA-C
50 P28/O-SPEANA-B
51 VFL
52 P27/O-SPEANA-A
53 P26
54 P25/I-NO_CASINO
55 P24/I-KARAOKE
56 P23/NO_DEMO
I/O
I Stereo detected input/CD DRF input
I Tune IF count serial data input/CD SUBQ input
O Deck 2 playback switch output
O System power supply ON/OFF output
_______
O CD power ON/OFF output
O LED driver, Tuner IC, Function IC data output
O Deck 2 REC MUTE output
_____
O Deck 2 bias ON/OFF output
_______
O System mute ON/OFF output
O Latch strobe output for LED driver IC
O Micon clock shift output
I System reset
– Not connected
I CD turntable photo sensor A/D converter input
– GND
– 5.76 MHz oscillator circuit
– 5.76 MHz oscillator circuit
– Power supply input
I Power failure detected input
I KEY input (A/D)
I KEY input (A/D)
I KEY input (A/D)
I Tuner signal input
I CD mechanical switch A/D converter input
I A/D input for spectrum analyzer display
I Rotary encoder input (VOL)
I CD WRQ input/Tuner RDS clock input
I Reference clock input for timer watch
I System remotecontrol signal input
O FL GRID output G11 ~ G1
– Not connected
O FL SEGMENT output P35 ~ P32
– Power supply input
O FL SEGMENT output P31 ~ P30
O FL SEGMENT output P29/Spectrum analyzer band switching output
O FL SEGMENT output P28/Spectrum analyzer band switching output
– Power supply input for FL display
O FL SEGMENT output P27/Spectrum analyzer band switch output
O FL SEGMENT output P26
I/O FL SEGMENT output P25/NO CASINO DEMO input to diode
I/O FL SEGMENT output P24/KARAOKE input to diode
I/O FL SEGMENT output P23/NO DEMO input to diode
27
Description
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