XR-M510
7-16. IC PIN FUNCTION DESCRIPTION
• MAIN BOARD IC601 MB90574BPMT-G-257-BND (SYSTEM CONTROLLER)
Pin No. | Pin Name | I/O | Description |
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1 | NC | O | Not used (open) |
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2 | AMSIN | I | Whether a music is present or not from CXA2510AQ (IC401) is detected at auto music sensor | |
“L”: music is present, “H”: music is not present |
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3 | AMSON | O | Tape auto music sensor control signal output to the CXA2510AQ (IC401) | |
“L” is output to lower the gain for audio level at FF/REW mode |
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4 | SP LATCH | O | Serial data latch pulse output for spectrum analyzer section to the liquid crystal display drive | |
controller (IC607) |
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5 | ATT | O | Audio line muting on/off control signal output terminal “H”: muting on | |
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6 | SYSRST | O | System reset signal output to the liquid crystal display drive controller (IC607) and SONY bus | |
interface (IC501) “L”: reset |
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7 | N/R | O | Forward/reverse direction control signal output to the CXA2510AQ (IC401) | |
“L”: forward direction, “H”: reverse direction |
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8 | VCC | — | Power supply terminal (+5V) |
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9 | NIL | I | Not used (fixed at “L”) |
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10 | E2PSIO | I/O | ||
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11 | E2PCKO | I/O | ||
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12 | FLS SI | I | Flash memory write data input from the liquid crystal display drive controller (IC607) | |
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13 | FLS SO | O | Flash memory write data output to the liquid crystal display drive controller (IC607) | |
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14 |
| O | Bus on/off control signal output to the liquid crystal display drive controller (IC607) and SONY | |
bus interface (IC501) “L”: bus on |
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15 | BEEP | O | Beep sound drive signal output terminal |
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16 | TELATT | I | Telephone detection signal input terminal At input of “H”, the signal is attenuated by | |
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17 | UNISI | I | Serial data input from the SONY bus interface (IC501) |
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18 | UNISO | O | Serial data output to the SONY bus interface (IC501) |
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19 | UNICKO | O | Serial clock signal output to the liquid crystal display drive controller (IC607) and SONY bus | |
interface (IC501) |
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20 | IFWIDTH | O | Not used (open) |
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21, 22 | NC | O | Not used (open) |
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23 | MTLOUT | O | METAL on/off control signal output to the CXA2510AQ (IC401) | “H”: METAL on |
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24 | SIRCS | I | Sircs remote control signal input from the remote control receiver (IC900, 903) | |
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25 | DSPSI | I | Not used (open) |
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26 | DSPSO | O | Not used (open) |
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27 | DSPCKO | O | Not used (open) |
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28 | DSPPLL | O | Not used (open) |
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29 | DSPMST | O | Not used (open) |
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30 | SHIFT | O | Not used (open) |
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31 | VOLATT | O | Pre amplifier muting on/off control signal output to the electrical volume (IC100) | |
“L”: muting on |
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32 | TUATT | O | Muting on/off control signal output of the FM/AM tuner signal “L”: muting on | |
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33 | VSS | — | Ground terminal |
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34 | C | — | Connected to coupling capacitor for the power supply |
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35 | DSPLAT | O | Not used (open) |
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36 | DSPRST | O | Not used (open) |
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37 | ANT CUT | O | Tuner system power supply on/off control signal output terminal | “H”: tuner power on |
Not used (open) |
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38 | DVCC | — | Power supply terminal (+5V) (for D/A converter) |
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39 | DVSS | — | Ground terminal (for D/A converter) |
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