Pin No.
Pin Name
I/O
Description
-34-
ALARM1 KEY
ALARM2 KEY
UP KEY
DOWN KEY
SET KEY
SLEEP KEY
WEEKEND-SKIP KEY
N.C
N.C
ARE1
ARE2
VDD2
GND
N.C
SEG23 ~ SEG1
V3
V2
V1
COM4
COM3
COM2
COM1
STKR1
STKR2
GND
VDD3
CLMP
DOOR-OPEN
CD-ON
DO
CE
CL
DI
MUTE
POWER-ON
MOT-V CONT
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57 ~ 79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
I
I
I
I
I
I
I
-
-
I
I
-
-
-
O
-
-
-
-
-
-
-
I
I
-
-
I
I
O
I/O
I/O
I/O
I/O
O
O
O
ALARM1 button input terminal (Lo active)
ALARM2 button input terminal (Lo active)
UP button input terminal (Lo active)
DOWN button input terminal (Lo active)
SET button input terminal (Lo active)
SLEEP button input terminal (Lo active)
WEEKEND-SKIP button input terminal (Lo active)
Not connected
Not connected
Reception area change 1
Reception area change 2
VDD3
GND
Not connected
LCD segment
LCD bias3
LCD bias2
LCD bias1
LCD common 4
LCD common 3
LCD common 2
LCD common 1
CD Stocker detection
GND
VDD3
CD mechanic clamp detection terminal (SW1 ON: Lo) Play:ON,Middle:OFF
CD door detection terminal (CD ON:Hi)
At the time of the CD function it outputs the Hi
Tuner control serial port
Tuner control serial port
Tuner control serial port
Tuner control serial port
MUTING output
POWER ON output. ON: Hi
CD mechanic changer motor torque UP output
ON: Lo
Stocker1
Stocker2
Stocker3 Rotary middle
SW2
ON
ON
OFF
OFF
SW3
ON
OFF
ON
OFF
IC DESCRIPTION -1/1 (LC877348A5Z52)-2/2
