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5-1. IC PIN DESCRIPTION
• IC701 TC9327F-113 (SYSTEM CONTROL/LCD DRIVE)
Pin No. Pin Name I/O Pin Description
1 – 4 COM1 – 4 O LCD driver common output
5 – 22 S1 – 18 O LCD driver output
23 MOTOR DIR O Motor rotation direction control output (FWD: L, REV: H)
24 MOTOR CTL O Motor ON/OFF control output (OFF: L, ON: H)
25 MOTOR SPEED O Motor speed control output (Normally: L, Speed down: H)
26 MOTOR BRK O Motor brake control output (Brake OFF: L, Brake ON: H)
27 PHOTO CTL O Photo reflector rotation detection control output
28 DOLBY O DOLBY control output (ON: L, OFF: H)
29 FWD/REV O Playback head input select output (REV: L, FWD: H)
30 AVLS O AVLS control output (AVLS OFF: L, AVLS IN: H)
31 FM MODE O LOCAL/DX control output (DX: L, LOCAL: H) (US, CND, 5E, 6E only)
32 TAPE SELECT O Tape select control output (Normal: L, CrO2/METAL: H)
33 PHOTO IN I Photo reflector rotation detection input
34 – 37 K0 – 3 I Key input 0 – 3
38 – 41 KO0 – 3 O Key output 0 – 3
42 BATT DET I Power supply voltage detection input (A/D input)
43 HOLD I HOLD input
44 AD IN3 I Not used in this set.
45 AD REF I Reference voltage of pin 43 and 44.
46 AMP CTL O AMP control output (AMP OFF: L, AMP ON: H)
47 MEGA BASS O MEGA BASS control output (ON: L, OFF: H)
48 OPEN I OPEN detection input (Open: L, Close: H)
49 BEEP O BEEP output
50 VER1 I Destination select input (Fixed at “L” (except EE, E, 9E) or “H” (EE, E, 9E) in this set.)
51 VER2 I
Destination select input (Fixed at “L” (US, CND, E, 5E, 6E, 9E) or
“H” (AEP, FR, EE, CEV, CH) in this set.)
52 VER3 I Destination select input (Fixed at “L” in this set.)
53 MBSET I MEGA BASS with/without detection input (Fixed at “L” in this set.)
54 DLBSET I
DOLBY with/without detection input (Fixed at “L” (WM-FX477) or
“H” (WM-FX479) in this set.)
55 REV SW I Mechanism deck mode detection switch input (REV ON: H)
56 REW SW I Mechanism deck mode detection switch input (REW ON: H)
57 FF SW I Mechanism deck mode detection switch input (FF ON: H)
58 FWD SW I Mechanism deck mode detection switch input (FWD ON: H)
59 BAND O BAND select output (AM: L, FM: input)
60 RADIO ON O RADIO ON/OFF control output (OFF: L, ON: H)
61 IF REQ O IF request output (Auto scan: L, Normally: H)
62 MUTE O Mute signal output (OFF: L, ON: H)
63 NC — Not used.
64 IF IN I IF input
65 EO O Not used in this set.
66 NC O Error out signal output
67 HOLD — Fixed at “H” in this set.
68 NC — Not used.
69 GND — Ground
70 VCO FM I VCO (FM) input
71 VCO AM I VCO (AM) input
72 VDD — Power supply pin
73 RESET — Reset input
74 XOUT — Crystal oscillator output (75 kHz)
75 XIN — Crystal oscillator input (75 kHz)
SECTION 5
DIAGRAMS
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