Aiwa NSX-BL44, Service Manual

27

IC DESCRIPTION

I

I

O

O

O

O

O

O

O

O

O

I

–

I

–

–

–

–

I

I

I

I

I

I

I

I

I

I

I

O

–

O

–

O

O

O

–

O

O

I/O

I/O

I/O

Stereo detected input/CD DRF input

Tune IF count serial data input/CD SUBQ input

Deck 2 playback switch output

_______

System power supply ON/OFF output

_______

CD power ON/OFF output

LED driver, Tuner IC, Function IC data output

Deck 2 REC MUTE output

_____

Deck 2 bias ON/OFF output

_______

System mute ON/OFF output

Latch strobe output for LED driver IC

Micon clock shift output

System reset

Not connected

CD turntable photo sensor A/D converter input

GND

5.76 MHz oscillator circuit

5.76 MHz oscillator circuit

Power supply input

Power failure detected input

KEY input (A/D)

KEY input (A/D)

KEY input (A/D)

Tuner signal input

CD mechanical switch A/D converter input

A/D input for spectrum analyzer display

Rotary encoder input (VOL)

CD WRQ input/Tuner RDS clock input

Reference clock input for timer watch

System remotecontrol signal input

FL GRID output G11 ~ G1

Not connected

FL SEGMENT output P35 ~ P32

Power supply input

FL SEGMENT output P31 ~ P30

FL SEGMENT output P29/Spectrum analyzer band switching output

FL SEGMENT output P28/Spectrum analyzer band switching output

Power supply input for FL display

FL SEGMENT output P27/Spectrum analyzer band switch output

FL SEGMENT output P26

FL SEGMENT output P25/NO CASINO DEMO input to diode

FL SEGMENT output P24/KARAOKE input to diode

FL SEGMENT output P23/NO DEMO input to diode

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 ~ 40

41

42 ~ 45

46

47 ~ 48

49

50

51

52

53

54

55

56

_______________

I-STEREO/I-DRF

______

I-IFC/I-SUBQ

O-2PB

O-POWER

O-CD-ON

O-PLL_DATA

O-RMT

_________

O-BIAS

O-MUTE

O-STB

_________________

O-CLK_SFT

RESET

NC

I-DISH

VSS1

CF1

CF2

VDD1

__________

I-HOLD

I-KEY1

I-KEY2

I-KEY3

I-TU_SIG

I-CDSW

I-SPEANA

I-RE_VOL

I-WRQ/I-RDS_CLK

I-TM_BASE

_________

I-RMC

G11 ~ G1

NC

P35 ~ P32

VDD3

P31 ~ P30

P29/O-SPEANA-C

P28/O-SPEANA-B

VFL

P27/O-SPEANA-A

P26

P25/I-NO_CASINO

P24/I-KARAOKE

P23/NO_DEMO

IC, LC866560W-5R50 <46EZ>, LC866548V-5R49 <Except 46EZ>

Pin No.

Pin Name

I/O

Description