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Pin No.
Port
51
NC
52
NC
53
NC
54
TEL-MUTE
55
PANEL-DET
56
CD-ON
57
PWR CNT
58
ACC-DET
59
RDS DATA
60
/RESET
61
REM
62
BATT
63
RDS CLK
64
CD.C.STB
65
PWR-IC-MUTE
66
CD-INSW1
67
VSS
68
VDD
69
X2
70
X1
71
Vpp
72
SUB-X2
73
SUB-X1
74
AVDD
75
AVREF
76
VSM_DET
77
INIT A
78
INIT B
79
INIT C
80
INIT D
Note 1 :
Voltage measuerments are with respect to ground, with a voltmeter (internal resistance : 10M
ohms).
9.2. Display Block
IC901 : YEAMLC75854T
Descriptions
No connection
No connection
No connection
Not used
Panel detect
CD power control
Power control
ACC detection
RDS data
Reset input
Remocon data input
Battery detection
RDS clock
CD.CH data strobe
Mute control
CD insert detection SW
Ground
+5V power supply
Crystal oscillator
Crystal oscillator
(Ground pull-down)
Crystal oscillator
Crystal oscillator
+5V power supply
(Connecting to VDD)
S-meter detection
Initial value A
Initial value B
Initial value C
Initial value D
I/O(V)
FM (V)
-
-
-
-
-
-
-
-
I
0
O
0
O
5.0
I
5.1
I
2.5
I
5.1
I
4.4
I
5.1
I
2.5
I
0
O
5.1
I
0
-
0
-
5.1
-
3.1
-
2.2
-
0
-
3.1
-
2.5
-
5.1
-
5.1
I
0
I
0
I
5.1
I
5.1
I
0
8
AM (V)
CD (V)
-
-
-
-
-
-
-
-
4.8
4.9
0
5.1
5.0
5.0
5.1
5.1
0
0
5.1
5.1
4.4
4.4
5.1
5.1
0
0
0
0
5.1
5.1
0
0
0
0
5.1
5.1
3.1
3.1
2.2
2.2
0
0
3.1
3.1
2.5
2.5
5.1
5.1
5.1
5.1
0
0
0
0
5.1
5.1
5.1
5.1
0
0
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