Aiwa HS-PX390 AH, Service Manual

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1 AF IN I H: exist music, L: no music.
2 SCLK I Input serial clock ( Not used) .
3 MUTE O H: mute OFF, L: mute ON.
4 SDATA O Output serial data (Not used).
5 F/R CONT O H: REV mode, L: FWD mode.
6 MS-SENS O H: FF/REW (include MS, BS), L: Other.
7 MOTDIR O H: counterclockwise, L: clockwise.
8 P-SNSRIN I Input photo sensor.
9 AF MOMITOR O H: when AF IN "L" level, L: when AF IN "H" level (Not used).
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 NC - Not connected.
14 NC - Not connected.
15 KEY MAIN I Main unit key input.
16 REMOTE I Remote controller key input.
17 P- SNSR K O Output for P-SNSR control.
18 LOAD CTL O Output for battery capacity checking.
19 LED K O Output for OPE, BATT LED control.
20 MOTOR ON L O H: when motor on "L" level, L: when motor on "H" level.
21 VDDI - Interface power supply for external equipment.
22 VSS - Power supply ( - ).
23 VDD - Power supply ( + ).
24 VDDH - Power supply booster for backup.
25 CB1 - Connected to capocitor for power supply booster.
26 CB2 - Connected to capocitor for power supply booster.
27 VDDL - Power supply ( + ) for internal logic.
28 XT0 - Connected to crystal oscillator for low speed.
29 XT1 - (32.768 kHz).
30 VDD - Test terminal.
31 VDD - Test terminal.
32 OSCM - Connected to capacitor for hi speed clock(Not used).
33 OSC0 - Connected to crystal oscillator for hi speed(Not used).
34 OSC1 - (Not used).
35 RESET I Input reset.
36 BEEP O Output beep sound.
37 CASS SW I H: not exist cassette, L: exist cassette.
38 MOTOR CH I Detect motor rotation.
39 LOAD CTL2 O Output for battery capacity checking.
40 TIMING SW I Input mechanism operation detection.
41 REMOTE DET I Switching level detector.
Pin No. Pin Name I/O Description
IC, ML63512-122
IC DESCRIPTION
IC NJM2185AV
IC BLOCK DIAGRAM- 2
IC MM1279XV
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