Microcomputer's Terminal Description - Kenwood KRC-578R Service Manual

MICROCOMPUTER'S TERMINAL DESCRIPTION

784217AGF503(504)(IC1 : MAIN UNIT)
Pin Pin Name Signal Name I/O
1 P60/A16 ST_TYPE1
2 P61/A17 ST_TYPE2
3 P62/A18 JS_TYPE1
4 P63/A19 TYPE1
5 P64/RD TYPE2
6 P65/WR TYPE3
7 P66/WAIT NC
8 P67/ASTB NC
9 Vdd
10 P100/TI5/TO5 AMP_SVR
11 P101/TI6/TO6 AMP_STBY
12 P102/TI7/TO7 AMP_MUTE
13 P103/TI8/TO8 NC
14 P30/TO0 ACC_DET
15 P31/TO1 BU_DET
16 P32/TO2 SMALL
17 P33/TI1 P_CONT
18 P34/TI2 P_ANT
19 P35/TI00 REMO
20 P36/TI01 P_ON
21 P37 ILL_ON
22 TEST
23 P90 IC2_SDA
24 P91 IC2_SCK
25 P92 MUTE
26 P93 SW5V
27 P94 F/E_DATA
28 P95 F/E CLK
29 P120/RTP0 CH_CON
30 P121/RTP1 CH_REQH
31 P122/RTP2 NC
32 P123/RTP3 NC
33 P124/RTP4 C-MAIN_M
34 P125/RTP5 C-SUB_M+
35 P126/RTP6 C-SUB_M-
36 P127/RTP7 NC
37 Vdd
38 X2
39 X1
40 Vss
41 XT2
42 XT1
43 RESET
44 P00/INTP0 NC
45 P01/INTP1 RDS_CLK
46 P02/INTP2/NMI CH_REQC
47 P03/INTP3 LCD_DATAL
48 P04/INTP4 C-MODE_1
49 P05/INTP5 C-MODE_2
50 P06/INTP6 C-MODE_3
KRC-578R/RY,680R
Purpose
I E-VOL setting selection input
I E-VOL setting selection input
Genuine/generally-marketed identification
I
input.
I Destination type switching input 1
I Destination type switching input 2
I Destination type switching input 3
O Not used
O Not used
- Positive power supply pin
O Power IC reset control
O Power IC standby control
O Power IC muting control
O Not used
I Acc detection input
I B-U detection input
I Small input
O Power control
O Power antenna control
I Remote control input
O Internal power control
O LED lighting control output
- IC test pin
I/O E-VOL/E's + data input/output
O E-VOL/E' + clock output
O Muting control
O SW 5 V control
I/O IC3 data input/output
O IC 3 clock output
O CH control
O CH send request output
O Not used
O Not used
O C-mechanism main motor control
O C-mechanism loading motor control
O C-mechanism loading motor control
O Not used
- Positive power supply pin
- Main system clock oscillator pin
- Main system clock oscillator pin
- GND pin
- Sub-system clock oscillator pin
- Sub-system clock oscillator pin
I System reset input pin
O Not used
I RDS clock input
I CD-CH send request input
I Data input from LCD driver
I C-mechanism mode detection 1 input
I C-mechanism mode detection 1 input
I C-mechanism mode detection 1 input
Operation Description
DEFAULT:LO
DEFAULT:LO
DEFAULT:LO
Power ON: Lo.
Standby canceled: Hi.
Standby mode: Lo.
Muting ON: Lo. Muting OFF: Hi.
ACC OFF:HI ACC ON:LO
B-U down: Hi. B-U normal: Lo.
Dimmer ON: Lo. Dimmer OFF: Hi.
ON:HI OFF:LO
TUNER: Hi. Other sources: Lo.
ON:HI OFF:LO
Lighting ON: Hi. Lighting OFF: Lo.
Muting ON: Hi. Muting OFF: Lo.
ON:LO OFF:HI
ON:HI
Requested: Lo.
ON:HI OFF:LO
Requested: Lo.
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