Kenwood KD CW 40 AY Service Manual

Page 8

KDC-W3534A/W3534G
KDC-W4OAY

MICROCOMPUTERS TERMINAL DESCRIPTION

Pin No. Pin Name l/O Application Processing Operation Description
14 DAC RST O DAC FlESET L : RESET

15 EMPH 0 External DAC Emphasis control L : Emphasis OFF

16,17 NC - Not used Low-fixed

18 lCNpp - Write voltage (FLASH) H : In writing

19 m 0 Lch audio MUTE control L : MUTE ON, H : MUTE OFF
20 W 0 Ron audio MUTE control L: MUTE ON, H : MUTE OFF
21 TYPE I DAC switching L : DSP built-in DAC Not used
22 TEST O1 0 TEST MODE 01 (Not used)

23 TEST 0 2 0 TEST MODE 0 2 (Not used)

24 TEST 0 3 0 TEST MODE 0 3 (Not used)

25 TEST 0 4 0 TEST MODE 0 4 (Not used)

26 NC - Not used Low-fixed

27 W I Wait control signal detection

28~30 NC - Not used Low-fixed

31 FE I Reset detection H : NORMAL, L : RESET
32 XT1 | Not used

33 XT2 - Not used

34 REGC -

35 X2 -

36 X1 l

37 V53 - GND electric potential

38 VDD - 5V electric potential

39 NC - NC

40 W l Multiplex WFllTE signal

41 ,42 NC - Not used Low-fixed

43 FT) 0 Multiplex RD signal

44 ASTB O Multiplex ASTB signal

45 NC - Not used Low-fixed

46 NC - Not used Low-fixed

47~54 ADO~AD7 l/O Multiplex address/data

55 BVdd - BUS interface power supply

56 BVss - BUS interface GND

57~61 ABB~ABt2 l/O Multiplex data/address

62~65 NC - Not used Low-fixed

66 (E 0 Chip select control H :OFF, L :ON

67 [W O DSP reset control H : NORMAL, L : RESET
68~70 NC - Not used Low-fixed

71 Avdd -

72 Avss -

73 Avref l A/D port reference voltage input