KRC-408/488
(X14-) IC1 : SYSTEM u-COM
PORT NAME
I/O
FUNCTION
1 XIN
I
Clock input
2 TEST 2
-
GND
3 LCD DATA IN
I
LCD driver data input
4 LCD DATA OUT
O
LCD driver data output
5 LCD CLK
O
LCD driver clock output
6 STBY
I
Tape stand-by SW
7 T END
I
Tape end SW
8 SDA 2
I/O
Data line to E-VOL.
9 SCL 2
O
Clock line to E-VOL.
10 REQ H
O
Changer request output
11 DATA C
I
Changer data input
12 DATA H
O
Changer data output
13 CH CLK
I
Changer clock input
14 REQ C
I
Changer request input
15 CH CON
O
Changer control
16 LCD CE
O
LCD driver Chip Enable output
17 AM+B
O
AM power supply control
18 FM+B
O
FM power supply control
19 MUTE
O
Mute output for audio circuit
20 ILLUMI
O
Illumination on
21 AMP STBY
O
Stand-by output to power amp
22 SVR
O
SVR discharge circuit control
23 P.CON
O
Power control
24 ANT CONT
O
Tuner ANT control
25 SUB+
O
Sub motor+output
26 SUB-
O
Sub motor-output
27 -
-
-
28 SEL 2
I
Destination discrimination 2
29 SEL 1
I
Destination discrimination 1
30 SEL 0
I
Destination discrimination 0
31 VDD
-
VDD
32 N.CAN
I
Noise canceller setting
33 MOTOR
O
Motor-ON output
--
-
37 DSI
O
Disable System Indicator
38 EQ MUTE
O
Tape equaliser mute output
39 P.ON
O
Power on
40 -
-
-
3
CIRCUIT DE
SCRIPTION
PORT
No.
34-
36
(X14-) IC1 : SYSTEM u-COM
PORT NAME
I/O
FUNCTION
41 -
-
-
42 MS CONT
O
-
43 -
-
-
44 BEEP
O
Beep output(2.08KHz)
45 PANEL
I
Panel ON/OFF detection
46 AMP MUTE
O
Mute
47 CRSC
I
-
48 PACK IN
I
Pack-in detection
49 FWD/REV
I
Tape FWD/REV
50 SDA3
O
PLL/EEPROM data line
51 SCL3
O
PLL/EEPROM clock line
52 METAL
O
Metal mode ON/OFF
53 DOLBY
O
Dolby
54 AM IF CONT
I
AM IF count judgement
55 SD
I
SD input
56 REMOTE
I
Remote controller
--
-
61 T MODE
I
Mode pulse input
62 PHONE
I
Telephone mute input
63 ACC
I
ACC detection
64 BACK UP
I
Back Up detection
65 MUSIC
I
Tape signal detection
66 S-METER
I
FM band SD detection
67 HOLD
I
Hold Detection
68 SNS
I
-
69 LCTR
-
GND
70 HCTR
-
GND
--
-
73 VDD
-
VDD
74 AM IN
-
GND
75 FM IN
-
GND
76 VSS
-
GND
--
-
79 TEST1
-
GND
80 XOUT
I
Clock output
PORT
No.
77,
78
71,
72
57-
60
