Aiwa HS-PX617 AH Service Manual page 7

IC DESCRIPTION
IC, ML63512A-A07
Pin No. Pin Name
1 DSL CTRL
2 SLAVE S-CLK
3 DSL EFFECT
4 SLAVE S-DATA
5 AU F/R CTRL
6 MUTE
7 MOTOR HI-SP
8 MOTOR HI-SP
9 MOTOR DRCT
10 MOTOR CTRL
11 MOTOR BRAKE
12 DIS-CHARGE
13 VOLTAGE DET 1
14 VOLTAGE DET 2
15 K-MAIN
16 K-REMOTE
17 NC
18 P-CTRL
19 LED CTRL
20 MOTOR CTRL
21 VDD I
22 VSS
23 VDD
24 VDDH
25 ~ 26 CB1 ~ 2
27 VDDL
28 XT0
29 XT1
30 ~ 31 TST1B ~ 2B
32 VSS
33 OSC 0
34 OSC 1
35 RESET
36 BEEP
37 CASS SW
38 P-DET
39 MS DET
40 TIMING SW
41 REMOTE SEL
42 NC
43 DOLBY CTRL
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I/O
O DSL switch control output terminal. (Not used)
I Serial clock input terminal for remote controller. (Connected to GND)
O DSL switch control output terminal. (Not used)
O Serial data output terminal for remote controller. (Not used)
O Playback signal FWD/REV switching output terminal.
O Mute signal output terminal.
O Motor HI-SP turn over output terminal.
O Mecha deck motor high speed control output terminal.
O Mecha deck rotating direction control output terminal.
O Mecha deck motor control output terminal.
O Mecha deck brake control output terminal.
O Dummy load control output terminal when checking battery level.
I Voltage detection input terminal 1.
I Voltage detection input terminal 2.
I Main unit key input terminal. (Using level detector)
I Remote controller key input terminal. (Using level detector)
– Not connected.
O Auto stop LED control output.
O Battery level indication LED control output.
O Motor control turn over output terminal.
– External equipment interface power supply terminal.
– Negative ( – ) side power supply terminal.
– Positive ( + ) side power supply terminal.
– Boost power supply terminal for back up.
– Capacitor connection terminal for boost power supply.
– Positive ( + ) side power supply terminal for internal logic.
I
Connect 32.768 kHz crystal oscillator.
O
I Test terminal. (Connected to VDD)
– Negative ( – ) side power supply terminal.
–
Clock oscillator terminal for high frequency side. (Not used)
–
I RESET input terminal.
O Beep sound output terminal.
I Cassette tape existance detect switch input terminal.
I Auto stop signal detection input terminal.
I Music sensor detection input terminal.
I Mecha deck timing switch detection input terminal.
I Remote controller specification switching input terminal. (Not used)
– Not connected.
O Dolby control output terminal. (Not used)
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Description