Microcomputer's Terminal Description - Kenwood KDC-419/X459 Service Manual

MICROCOMPUTER'S TERMINAL DESCRIPTION

(X25-) IC1 : u-COM
PORT
PORT NAME
No.
1 TYPE 0
2 TYPE 1
3 FLIP DET
4 AVSS
5 PANEL DET
6 E2P DET
7 AVREF 1
8 CH DATA C
9 CH DATA H
10 CH CLK
11 L DATA L
12 L DATA S
13 L CLK
14 L CE
15 BEEP
16 PLL DATA
17 L RST
18 PLL CLK
19 GUIDE ILLUMI
20 EJECT ILLUMI/DSI
21 PANEL
22 LO/EJ
23 MOSW
24 M MUTE
25 -
26 M STOP
27 M RST
28 CD DOWN
29 ILLUMI ON
30 IC2 TYPE 1
31 P-ON
32 IC2 CLK
33 VSS 1
34 IC2 DATA
35 R QUAL
36 R DATA
37 AFS
38 IC2 TYPE 0
39 AM+B
40 FM+B
41 CH MUTE
42 CH RST
43 CH REQ H
44 CH CON
45 DIMMER CONT
46 MUTE
47 N/F MUTE
48 PRE MUTE
49 REMOTE
I/O FUNCTION
I Destination switch.
I Destination switch.
I Panel open/close detection.
- GND.
I Panel presence detection.
I EEPROM presence detection.
I Reference voltage.
I Data from the changer.
O Data to the changer.
I/O Clock signal from or to the changer.
I Data from LCD driver.
O Data to LCD driver.
O Clock signal to LCD driver.
O LCD driver enable.
O Buzzer.
I/O Data from or to the front-end.
O LCD driver reset.
O Clock signal to the front-end.
O Guide illumination control.
O EJECT/DSI illumination control.
I/O Panel power supply control.
I/O CD-mecha/Loading/Eject switch.
O CD-mecha/Motor switch.
I Lch mute request from CD mechanism. "L" : Mute.
- -
O Stop request to CD mechanism.
O CD mechanism reset.
I CD down switch detection.
O Illumination power control.
I IC2 destination switch.
I/O SW 5V control.
O Clock signal to IC2 or CD mechanism. -
- GND.
I/O Data from or to IC2 or CD mechanism. -
I RDS QUAL.
I RDS data.
O Noise detection time constant switch.
I IC2 destination switch.
O AM power supply.
O FM power supply.
I Mute request from the changer.
O Reset signal to the changer.
O Request to the changer.
O Changer control.
O Dimmer control.
O Mute.
O Non-fader preout mute.
I/O Front/Rear preout mute.
I Remote control.
KDC-419/X459
OPERATING CONDITION
-
-
"H" : Panel opened. "L" : Panel closed.
-
"H" : Panel does not exists. "L" : Panel exists.
"H" : ROM exists. "L" : ROM does not exist.
To BU 5V.
-
-
-
Max 600KHz communication speed.
Max 1.2MHz communication speed.
-
"H" : Driver selected. "L" : Driver non-selected.
-
-
"L" : Reset.
-
"L": Illumination turns on.
"H" : Illumination turns off.
"L" : Illumination turns on.
"H" : Illumination turns off.
"L" : Panel exists, ACC turns off.
"L" : Loading. "H" : Eject.
"H" : Loading, eject, breaking.
-
"L" : Mechanism stop. "H" : CD playing.
"L" : Reset.
"H" : Chucking.
"H" : Illumination turns on.
"L" : Illumination turns off.
"L" : Pure KENWOOD brand. "H" : Genuine.
"L" : P-ON turns on.
-
"L" : Model without RDS.
"L" : Model without RDS.
"L" : FM seeking, AF searching.
"H" : Signal receiving.
"L" : Pure KENWOOD brand. "H" : Genuine.
"H" : AM signal receiving.
"H" : FM signal receiving.
"H" : Mute effects.
"H" : Reset.
"L" : Requesting.
"H" : Changer controlled.
"H" : Dimmer turns on.
"H" : Mute effects.
"L" : Mute effects.
"L" : Mute effects.
-
5