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IC DESCRIPTION
1
AF IN
I
‘H’: Exist music, ‘L’: Not exist music.
2
SCLK
I
Serial clock input terminal.
3
MUTE
O
‘H’: MUTE OFF, ‘L’: MUTE ON.
4
SDATA
O
Serial data output terminal.
5
F/R CONT
O
‘H’: FWD direction, ‘L’: REV direction.
6
HI-SP-SW
O
‘H’: Motor HI speed.
7
MOT DIR
O
‘H’: Motor counterclockwise (FWD), ‘L’: Motor clockwise (REV).
8
MOTOR 1. 2
O
Motor normal speed. (Not connected)
9
HI-SP DET
I
‘H’: No exist DD drive output, ‘L’: Exist DD drive output.
10
MOT ON
O
‘H’: Motor ON, ‘L’: Motor OFF.
11
MOT BR
O
‘H’: Motor brake ON, ‘L’: Motor brake OFF.
12
HOLD IN
I
'H' : Hold OFF, 'L' : Hold ON.
13
P-REV IN
I
Photo senser input terminal (REV side).
14
P-FWD IN
I
Photo senser input terminal (FWD side).
15
KEY MAIN
I
Key input terminal (Main unit).
16
KEY REMOTE
I
Key input terminal (Remote controller).
17
P-FWD K
O
Output for photo senser control (FWD side).
18
P-REV K
O
Output for photo senser control (REV side).
19
LED K
O
OPE battery LED control output.
20
P-CHECK (NC)
O
Photo senser puls checking output. (Not connected)
21
VDDI
-
Interface power supply terminal for external equipment.
22
VSS
-
Negative power supply terminal.
23
VDD
-
Positive power supply terminal.
24
VDDH
-
Boost power supply for backup.
25 ~ 26
CB1 ~ CB2
-
Connected to power supply booster capacitor.
27
VDDL
-
Positive power supply for internal logic circuit.
28 ~ 29
XT0 ~ XT1
-
Clock oscilltor terminals (Low speed side).
Connected to 32.768 kHz crystal oscillator.
30 ~ 31
TEST1B ~ TEST2B
-
Test terminals. (Connected to GND).
32
OSCM
-
Connected to capacitor for high speed clock. (Connected to GND).
33 ~ 34
OSC0 ~ OSC1
-
Clock oscilltor terminals (high speed side).
35
RESETB
I
Reset input.
36
BEEP
O
Alarm sound output.
37
CASS SW
I
‘H’: Exist cassette, ‘L’: Not exist cassette.
38
SET STOP
I
‘H’: Normal operation, ‘L’: Mechanism stop.
39
VOLTAGE DET
I
Input terminal for control motor speed.
40
TIMING SW
I
Input terminal for detect mechanism operation.
41
LID SW
I
‘H’: Cassette case OPEN, ‘L’: Cassette case CLOSE.
42
DOLBY SW
I
‘H’: Dolby ON, ‘L’: Dolby OFF.
43
DSL1
O
Output: DSL1 OFF, Stop: DSL1 ON.
44
DSL2/EGS
O
‘H’: DSL2/EGS OFF, ‘L’: DSL2/EGS ON.
Pin No.
Pin Name
I/O
Description
IC, ML63512-120
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