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LC72366-9989 (IC801) : Main micon
1. Pin layout
80 ~ 65
1
24
25 ~ 40
2. Pin function
Pin
Symbol
No.
1
XIN
4.5MHz crysral oscillation
2
TEST2
Connect to ground
3
J BUS SI
J-BUS signal data input ( to 74HC126 )
4
J BUS SO
J-BUS signal data output ( to 74HC126 )
5
J BUS SCK
J-BUS output clock signal ( to 74HC126 )
6
J BUS I/O CONT
J-BUS I/O control
7
SUBQ
CD LSI subcode data input
8
No use
9
SQCK
CD LSI subcode clock
10
RESET
Micon reset pin
11
LCD SI
No use
12
LCD SO
LCD driver data output
13
LCDSCK
LCD driver clock signal
14
LCD CE
LCD driver chip enable port
15
FM ILLUMI
No use
16
AM ILLUMI
No use
17
CD ILLUMI
No use
18
DIMMER OUT
No use
19
LM0
CD loading motor output
20
CD loading motor output
LM1
21
No use
22
No use
23
No use
24
KS2
No use
25
KS1
No use
26
KS0
Output for initial setting diode matrix
27
DETACH
Front panel detect
28
K2
No use
29
K1
Input for initial setting diode matrix
30
K0
Input for initial setting diode matrix
31
Vdd
5V power supply
32
SW2
CD mechanism switch 2 for 12cm disc
33
CD LSI RESET
CD LSI reset
34
MCLK
CD LSI command clock signal
35
MDATA
CD LSI command data output
36
MLD
CD LSI command load signal
37
No use
38
No use
39
SCL
E.volume clock output
40
SDA
E.volume data output
64
41
Function
Pin
Symbol
No.
41
CD ON
CD 8V supply on
42
RELAY
5V power control
43
BBE CTL
No use
44
BEEP
No use
45
SW4
46
SW1
CD mechanism switch 1 for disc in, 8cm disc
47
SW3
CD mecha. switch 3 for disc present, loading end
48
REST
CD pickup rest position
49
JOG0
Rotary encoder input 0
50
JOG1
Rotary encoder input 1
51
CD SENSE
CD LSI sense signal
52
STATUS
CD LSI status signal
53
P .SAVE2
Power save 2 : +B detect
54
SD/ST
Station detection, Stereo indication
55
REMOCON
Remocon input
56
J BUS INT
J-BUS interrrupt
57
BAND
FM/AM band selection
58
MONO
FM mono selection
59
IFRQ/AGC
During FM auto search, IF request output H after SD
detected. During AM suto search, AGC output.
60
MUTE
Muting switch
61
LEVEL
Level meter input
62
S METER
S meter input
63
KEY CHANGE
Connect to ground
64
KEY2
Key 2 data input (AD)
65
KEY1
Key 1 data input (AD)
66
KEY0
Key 0 data input (AD)
67
P .SAVE1
Power save 1, ACC power detect
68
SENSE
Voltage sense
69
No use
70
FM IF COUNT
FM IF counter data input
71
No use
72
No use
73
Vdd
5V power supply
76
AM OSC
No use
75
FM OSC
FM input frequency
76
Vss
Ground
77
No use
78
EO
PLL error output signal
79
TEST1
Connect to ground
80
XOUT
4.5MHz crystal oscillation
KD-S577
Function
1-21
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