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6-6. IC PIN FUNCTION DESCRIPTION
• IC3 TC9327AF-604
Pin No.
Pin Name
COM 1 to
1 to 4
COM 4
5 to 22
S1 to S18
DOLBY VCC
23
CTL
24
S1/2 CTL
25
RADIO/MIC
26
F/R CTL (REC)
27
PRE CTL
28
MUTE CTL
29
F/R CTL (PLAY)
30
BAND AM/FM
31
R DATA OUT
32
F TUME
33
R TUME
34
R DATA IN
35
HOLD SENS
36
OSC CTL
37
AMS IN
38
PHOTO CTL
39
PHOTO IN
40
DDC1 CTL
41
HOLD SW
TE
L 13942296513
42
BATT DET
43
KEY IN
44
F/R SW
45
(VCC) AD REF
46
CS
47
M DATA I/O
48
M CLOCK
49
BEEP
50
MOTOR CTL
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I/O
O
Common terminal.
O
Segment output terminal.
O
Dolby control terminal. (L: ON, Hi-imp: OFF)
O
Motor speed control terminal.
O
Rec input select terminal.(L: normal, Hi-imp: MIC)
O
HEAD select terminal (PLAY mode) (L: REV, Hi-imp: FWD)
O
PRE AMP control terminal.
O
MUTE control terminal (L: MUTE ON).
O
HEAD select terminal (PLAY mode) (L: FWD, H: REW).
O
BAND control output (L: FM, H: AM).
O
Remote control data output.
I
TAPE error erase detect terminal. (FWD).
I
TAPE error erase detect terminal. (REV).
I
Remote control data input.
I
Input when the key is pressed during HOLD (H= AD Vref).
I
Tape end Locking detect input terminal.
I
Tape sound existing or not-exiting detect (L: Music exists: H: Music does not exist).
O
Terminal for controlling the rotation detect circuit.
I
Rotation detect input.
O
DDC control terminal (H: DDC ON).
I
HOLD detect input (L: HOLD ON).
I
Voltage detect input.
I
KEY input terminal.
I
TAPE rotating direction detect terminal.
I
AD IN 1, 2, 3 reference viltage interrupt terminal.
2
O
E
PROM CS control terminal.
2
I/O
E
PROM DATA I/O.
2
O
E
PROM CLOCK terminal.
O
BEEP (when TC: 1.6kHz, when CF: 3.0kHz).
O
MOTOR control terminal.
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Description
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