— 27 —
6-6. IC PIN FUNCTION DESCRIPTION
•
IC3 TC9327AF-604
Pin No.
1 to 4
5 to 22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
I/O
O
O
O
O
—
—
O
O
O
O
O
I
I
I
I
I
I
O
I
O
I
I
I
I
I
O
I/O
O
O
O
Description
Common terminal.
Segment output terminal.
Dolby control terminal. (L: ON, Hi-imp: OFF)
Motor speed control terminal.
Not used
Not used
PRE AMP control terminal.
MUTE control terminal (L: MUTE ON).
HEAD select terminal (PLAY mode) (L: FWD, H: REW).
BAND control output (L: FM, H: AM).
Remote control data output.
TAPE error erase detect terminal. (FWD).
TAPE error erase detect terminal. (REV).
Remote control data input.
Input when the key is pressed during HOLD (H= AD Vref).
Tape end Locking detect input terminal.
Tape sound existing or not-exiting detect (L: Music exists: H: Music does not exist).
Terminal for controlling the rotation detect circuit.
Rotation detect input.
DDC control terminal (H: DDC ON).
HOLD detect input (L: HOLD ON).
Voltage detect input.
KEY input terminal.
TAPE rotating direction detect terminal.
AD IN 1, 2, 3 reference viltage interrupt terminal.
E
2
PROM CS control terminal.
E
2
PROM DATA I/O.
E
2
PROM CLOCK terminal.
BEEP (when TC: 1.6kHz, when CF: 3.0kHz).
MOTOR control terminal.
Pin Name
COM 1 to
COM 4
S1 to S18
DOLBY VCC
CTL
S1/2 CTL
RADIO/MIC
F/R CTR (REC)
PRE CTL
MUTE CTL
F/R CTL PLAY
BAND AM/FM
R DATA OUT
F TUME
R TUME
R DATA IN
HOLD SENS
OSC CTL
AMS IN
PHOTO CTL
PHOTO IN
DDC1 CTL
HOLD SW
BATT DET
KEY IN
F/R SW
(VCC) AD REF
CS
M DATA I/O
M CLOCK
BEEP
MOTOR CTL
Summary of Contents for WM-FX671
Page 13: ...WM FX671 SECTION 6 DIAGRAMS 13 14 15 6 1 BLOCK DIAGRAM ...
Page 27: ...MEMO ...
