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5-5. IC PIN FUNCTIONS
• IC701 MSM63120B SYSTEM CONTROL
Pin No.
Pin Name
1
BEEP
2
DDC CTL
3
MUTE
4
F/R CTL
5
DOLBY CTL
6
DBB ON/OFF
7
DBB MID/MAX
8
AVLS CTL
9
PRE AMP CTL
10
AMP CTL
11
REC CTL
12
PHOTO CTL
13
LED CTL
14
PL CTL
15
M-CTL
16
M-DIR
17
M-BRK
18
TEST
TE
L 13942296513
19
OSC2
20
OSC1
21
VDD
22
XTB
23
XT
24
VSS1
25
VSS2
26
VCM
27
VCP
28
VSSL
29
HALL1
30
HALL2
31
KEY1
32
KEY2
33
FOREIGN/JAPAN
34
A/B
35
HOLDER
36
FWD SW
37
REV SW
38
RMUM
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39
RQT
40
DRQT
.
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I/O
O
Beep signal output (TC system=1.6 kHz, CF system=3.0 kHz)
O
ON/OFF control output of DC-DC converter and amplifier (when DDC on=L)
O
Audio muting control output (when MUTE ON=L)
O
Head select output (when FWD=H, when REV=L)
O
DOLBY ON/OFF control output (when DOLBY ON=L)
O
Tone control output (when DBB ON=H)
O
Tone control output (when DBB ON=L)
O
AVLS ON/OFF control output (when AVLS ON=L)
O
TC/RADIO select output of preamplifier (when TC=L, when RADIO=H)
O
Audio amplifier control (when AMP ON=H)
O
REC control output (when REC=H)
O
Output for rotation detect intermittent
O
LED control output (when LED ON=H)
O
Plunger control output
O
Motor control output
O
Motor rotating direction control output
O
Motor brake control (open)
—
Test pin (connect to GND)
—
Resistor connect pin for CR oscillator (800 kHz). (open)
—
Resistor connect pin for CR oscillator (800 kHz). (open)
—
Power supply connect terminal
—
Crystal oscillator connect terminal
—
—
Power supply connect terminal
—
Internal power supply step-up terminal
—
Internal power supply step-up terminal
—
Internal power supply step-up terminal
—
Internal power supply step-up terminal
I
Rotation detect input
I
Rotation detect input
I
Key input
I
Key input
I
Mode select input (connect to VDD)
I
Tape A/B side detection switch input
I
Holder keying switch (close=L)
I
MD mode switch (when FWD PLAY=on)
I
MD mode switch (when REV PLAY=on)
I
With No remote commander (with=H)
I
Data request of LCD driver
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I/O
Communication request output to the remote commader.
i
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2 9
8
Function
Q Q
3
6 7
1 3
1 5
32.768 kHz
co
.
— 25 —
9 4
2 8
0 5
8
2 9
9 4
2 8
m
9 9
9 9
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