6-7. IC PIN FUNCTION DESCRIPTION
MAIN BOARD IC501 |
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Pin No. | Pin Name | I/O | Function | ||||||
1 |
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| DSEL | I | Destination setting pin | |||
2 |
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| RC_IN0 | I | Rotary remote commander input pin (A/D input) | ||||
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3 |
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| SD_IN | I | Station detection signal input | ||||
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4 |
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| AVSS | — | GND | |||
5 |
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| ST | I/O | Stereo detection signal input and forced monaural signal output pin | |||
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6 |
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| PLLCE | O | PLL chip enable output pin | ||||
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7 |
| AVREF1 | I | A/D reference voltage input pin | |||||
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| PLLSI | I | PLL data input pin | ||||
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9 |
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| PLLSO | O | PLL data output pin | ||||
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10 |
| PLLCKO | O | PLL clock output pin | |||||
11 |
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| P.ST_IN | I | Polar stereo input pin | ||||
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12 |
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| LCDSO | O | LCD data output pin | ||||
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13 | LCDCKO | O | LCD clock output pin | ||||||
14 |
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| LCDCE | O | LCD chip enable output pin | ||||
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15 |
| LCDINH | O | LCD blank indication control pin | |||||
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16 |
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| UNISI | I | Data input pin (for SONY BUS) | ||||
17 |
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| UNISO | O | Data output pin (for SONY BUS) | ||||
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18 |
| UNICKI | I | Clock input pin (for SONY BUS) | |||||
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19 |
| UNICKO | O | Clock output pin (for SONY BUS) | |||||
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20 |
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| BUSON | O | BUS ON control signal output pin (for SONY BUS) | ||||
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21 |
| SYSRST | O | System reset signal output pin | |||||
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22 |
| AMPON | O | Power amp power supply control pin | |||||
23 | AMP_MUT | O | Power amp muting control pin. At muting: “L” | ||||||
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24 |
| TUNON | O | Tape power supply control pin | |||||
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25 |
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| FM_ON | O | FM power supply control pin | ||||
26 |
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| PW_ON | O | System power supply control pin | ||||
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27 |
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| COLOR | I/O | Illumination color selection input/output pin | ||||
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| At initial mode: valid/invalid selection input of color select function |
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| At normal mode: color selection output |
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28 |
| AMSON | I | Tape AMS control pin. At AMS: “L” | |||||
29 |
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| REL | I | Reel table rotation detection pin | |||
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30 |
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| MTLIN | I | AUTO METAL detection pin. “L”: METAL | ||||
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31, 32 | POS3, POS2 | I | Tape position control pin | ||||||
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33 |
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| GND | — | GND | |||
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34, 35 | POS0, POS1 | I | Tape position control pin | ||||||
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36 | LM_LOD | O | Loading motor control pin (loading direction) | ||||||
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37 |
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| LM_EJ | O | Loading motor control pin (eject direction) | ||||
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38 | N/R_OUT | O | Forward/reverse control pin | ||||||
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39 |
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| P.ON | O | Polar stereo detection output pin. At polar stereo on: “H” | |||
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40 |
| CM_ON | O | Capstan motor control pin | |||||
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41 |
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| TAPON | O | Tape power supply control pin | ||||
42 |
| COLSEL | I | Illumination color setting pin. “L”: amber, “H”: green | |||||
43 |
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| RC_IN1 | I | Rotary remote commander input pin (A/D input) | ||||
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44 |
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| TEST | I | Test mode setting pin | |||
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