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Port
Description
Pin
No.
70 LCD
LCD Clock
CLK
71 LCD DO LCD data
72 LCD DI LCD data
73 CH REM CD changer remote
74 AMP
Amp mute control
MUTE
75 STBY
Power IC stundby
control
76 (NC)
77 CH
CD changer data
DATA
78 CH
CD changer clock /
CLK /
System upgrade ID3
SYSID3
79 CD SW1 CD mechanism SW1
80 CD SW2 CD mechanism SW2
9.2. Display Block
IC901 : C0HBA0000195
Pin
Port
No.
1-39 SEG1-39 LCD segment data
40-
COM1-4
LCD common
43
44,45 SEG40,41 Not used
46-
KS3-6
Key scan
49
50-
Kl1-5
Key data
54
55 TEST
(Connecting to ground)
56 VDD
+5V power supply
57 VDD1
VDD1 filter terminal
58 VDD2
VDD2 filter terminal
59 VSS
Ground
60 OSC
Oscillator terminal
61 DO
Key data output
62 CE
LCD driver chip enable
63 CLK
LCD clock
64 DI
LCD data
9.3. CD Servo Block
IC101 : YESAM337
I/O
FM AM CD
O 4.7 4.7 4.7
I
4.7 4.7 4.7
O 4.7 4.7 4.7
O
0
O 4.8 4.8 4.8
O 4.8 4.8 4.8
-
-
-
I
0
I
0
I
4.8 4.8 4.8
I
0
Description
(V)
1.6 2.8
-
-
0
0
0
0
0
4.8
I/O (V)
O
2.4
O
2.4
-
-
O
4.7
I
0
-
0
-
4.7
-
3.1
-
1.6
-
0
-
3.7
O
4.7
I
0
I
4.7
I
4.7
8
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