Ic Pin Functions; Ic701 Msm63120B System Control - Sony WM-FX822 Service Manual

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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
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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.
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Function
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