Read Sony CFD-44 Service Manual online
– 15 –
SECTION 5
EXPLANATION OF IC TERMINALS
IC611 MSM65353-024GS-BK4
1-4
COM 1-4
O
LCD common output.
5-25
SEG 0-20
O
LCD segment output.
26
SEG 21
O
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
27
SEG 22
O
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
28
–––––––––
–
Not used. (Open)
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
29
NC
–
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
30
NC
–
31-36
–––––––––
–
Not used. (Open)
37
A-GND
–
Analog ground.
38-41
KEY 1-4
I
Key input.
42
9/10
I
9k/10k switching detection.
43
–––––––––
–
Not used. (Ground)
44
J/L/S
I
Destination selection input.
45
–––––––––
I
Not used. (Ground)
46
VRH
I
Power supply (+5V) for A/D conveter reference voltage.
47
AV
DD
I
Power supply. (+5V)
48
INI
O
Initial output.
49
ROM-DAT
I/0
Data input/ output to IC612 (EEPROM).
50
ROM-CLK
O
Clock output to IC612 (EEPROM).
51
ROM-CE
O
Chip enable output to IC612 (EEPROM).
52
R-ST
I
Stereo signal input. (RADIO)
53
R-MUTE
O
Mute output for RADIO
54
R-CE
O
Chip enable output to IC3 (PLL).
55
TAPE
O
Function select signal. (TAPE)
56
MONO/ST
I
MONO/ST input.
57
NC
–
Not used. (Open)
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
58
NC
–
59
C-SENCE
I
SENS input from IC702 (DSP).
60
C-XRST
O
System reset output to IC702(DSP).
61
C-DATE
O
Data output to IC (DSP).
62
C-XLAT
O
Latch output to IC702 (DSP).
63
C-CLK
O
Clock output to IC702 (DSP).
64
C-MUTE
O
CD mute output.
65
C-SQSO
I
Sub-code Q data input.
66
C-SQCK
O
Sub-code Q data reading clock output.
67
RMC
I
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
68
NC
–
Not used. (Open)
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
69
–––––––––
–
Pin No.
Pin name
I/O
Description
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