KRC-765/691/691Y
4
MICROCOMPUTER'S TERMINAL DESCRIPTION
q IC1(SYNTHESIZE UNIT : X14-68XX-XX)
Pin No.
Pin Name
I/O
Description
Processing Operation
1
TYPE 1
I
Destination type selection port
2
TYPE 2
I
Destination type selection port
3
IFC
I
F/E IFC OUT input terminal
H: Station exists
Vth: 2.5V
4
AVSS
-
A/D,D/A converter ground connection terminal
Connected to GND lines.
5
IC2-TYPE 1
I
Maket/genuine select (Noise cancel)
L: Maket
H: genuine
6
PANEL-DET
I
Panel detection
L: Panel exists
H: Panel does not exists
7
AVREF1
I
D/A converter reference voltage input terminal
Connecting to BU5V
8
CH-DATAC
I
Data input from changers
9
CH-DATAH
O
Data output to changers
Last maintenace
10
CH-CLK
I/O Clock input/output with changers
input
11
L-DATAL
I
Data input from the LCD driver IC
Communication speed 600kHz (max)
12
L-DATAS
O
Data output to the LCD driver IC
Communication speed 1.2MHz (max)
L: Panel detached
13
L-CLK
O
Clock output to the LCD driver IC
L: Panel detachd
14
L-CE
O
LCD driver chip enable
H: Driver select
L: Not select
15
BEEP
O
BEEP sound output
16
PLL-DATA
I/O Tuner (01ST) data input/output
Last maintenace
17
FLIP-DET
I
Panel detach detection
L: Panel attached
H: Panel detached
18
PLL CLK
O
Tuner (01ST) clock input/output
19
N.C.
O
Not used
20
EJECT ILL/DSI
O
EJECT ILL KEY & DSI output
L: Light ON
H: Light OFF
21
L-RST
O
Reset output to the LCD driver IC
L: Reset ON H: Reset OFF
22
PAN 5V
I/O Panel 5V control terminal
L: ON (Panel exists & ACC ON)
H: OFF (Panel does not exists or ACC OFF)
23
R-DATA
I
Data input from the RDS decoder IC
24
R-QUAL
I
Quality input from the RDS decoder IC
25
SUB (-)
O
Sub motor output (-)
26
SUB (+)
O
Sub motor output (+)
27
FWD/rev
I
Cassette tape running direction detection
H: FWD
L: REV
28
MS-CONT
O
ADV sensitivity control
H: PLAY
L: FF/REV
29
metal
O
NORMAL/METAL change
H: NORMAL L: METAL
30
EQ-MUTE
O
EQ-MUTE change
H: ON
L: OFF
31
DOLBY
O
Dolby ON/OFF
H: ON
L: OFF
32
music
I
Casstet music space detection
H: Music does not exists
L: Music exist
33
VSS1
-
GND
34
IC2 TYPE 0
I
Maket/genuine select 0 (ROLL-OFF)
L: Market
L: Genuine 0
35
AM+B
O
AM power supply terminal
H: During AM reception
36
FM+B
O
FM power supply terminal
H: During FM reception if with RDS
37
AFS
O
Noise detection time constant switching terminal
Hi: During FM reception, Lo: During FM seek or
AF search
38
IC2-CLK
O
IC2 clock output
39
IC2-DATA
I/O IC2 data input/output
40
EEPROM DET
I
EEPROM detection terminal
H: EEPROM exist
L: EEPROM does not exists
41
P-MUTE
O
Power IC mute control output
H: Mute OFF
L: Mute ON, PowerOFF, All OFF, TEL Mute
42
P-STBY
O
Power IC standby control output
L: Power IC OFF, All OFF mode
H: Power IC ON
43
MUTE
O
IC2 mute control output
H: Mute ON
L: Mute OFF
44
PRE MUTE
O
Pre-out mute control
L: Momentary power down, Reset
45
DIMMER-CON
O
Dimmer Control
Control with pulse output
H: Power ON
L: Power OFF
46
BU-DET
I
Momentary power down detection input
H :BU OFF
L : BU ON
47
ACC-DET
I
ACC detection input
L: ACC ON
H: ACC OFF
48
dimmer
I
Small lights detection input
L: ON
H: OFF
49
REMO
I
Data input from the remote control light sensor
50
ANT-CON
O
Antenna control output
H: TUNER, TI
