65
HCD-GTR6/GTR6B/GTR7/GTR8/GTR8B
53 AUDIO IC CLOCK O Serial data transfer clock signal output to audio signal IC, R2A15216FP
54 AD SUPPLY CUT OFF O Micom AD Vcc supply cut off
55 MTK POWER CONTROL I MTK IC Power control
56 FAN ON O Fan on/off control port.
57 NO USE O Unused port (Output port setting - open)
58 ST-TUNED I “TUNED” input signal from Tuner pack.
59 NO USE O Unused port (Output port setting - open)
60 ST-CE O PLL chip enable signal output to the tuner unit
61 ST-DOUT (UC_DIN) O PLL serial data output from the tuner unit
62 VCC – Power supply terminal (+3.3V)
63 ST-DIN (UC_DOUT) I PLL serial data input to the tuner unit
64 VSS – Ground terminal
65 ST-CLK O PLL serial data transfer clock signal output to the tuner unit
66 MTK 3.3V MONITOR I Micom monitoring the MTK power supply pin.
67 THERMA VACS I Temperature detection signal input from thermistor (A/D input)
68 STBY RELAY O Main power on/off control signal output “H”:power on
69 OVER VOLTAGE DET I Over-voltage protection detection input terminal “L”: over-voltage detected
70 VACS-IN I Spectrum analyzer drive signal input from Audio IC signal (A/D input)
71 METER LEVEL IN I Audio signal level for Meter level detect (A/D input).
72 REC BIAS O Recording bias on/off control signal output “H”:bias on
73 POWER KEY I POWER key and DISPLAY key press detection signal (Interrupt input)
74 NO USE O Unused port (Output port setting - open)
75 REC MUTE O Recording muting on/off control signal output “L”:muting on
76 MIC DET I Mic in detect pin.
77 HP DET I Heahphone in detect pin.
78 CAPM-CNT O Capstan motor drive signal output
79 B-TRIG O Deck side trigger plunger drive signal output “H”:plunger on
80 B SHUT I Shut off detection signal input from deck A side reel pulse detector (A/D input)
81 B-HALF/REC I
Deck B cassette detection, forward side recording tab detection and reverse side recording
tab detection signal input terminal (A/D input)
82 TC-RELAY O Recording/playback selection signal output “H”:recording “L”:playback
83 METER IN2 O Meter motor control port
84 METER IN1 O Meter motor control port
85 METER IN3 O Meter motor control port
86 METER IN4 O Meter motor control port
87 METER SW I Meter position switch (Initial & End Position) for calibration purpose.
88 AD-KEY-1 I Key input terminal for AD key line 1.
89 AD-KEY-0 I Key input terminal for AD key line 0.
90 AD-KEY-2 I Key input terminal for AD key line 2.
91 MODEL-IN I Model setting terminal (A/D input)
92 DEST-IN I Destination setting terminal (A/D input)
93 OPERATION DIAL I Jog dial pulse input from OPERATION DIAL encoder
94 MASTER VOLUME I Jog dial pulse input from the VOLUME encoder
95 EEPROM CLOCK I/O External EEPROM memory backup (Serial Clock line)
96 AVSS I Ground terminal (for A/D conversion)
97 EEPROM DATA I/O External EEPROM memory backup (Serial Data line)
98 VREF I A/D Converter reference voltage input terminal (+3.3V)
99 AVCC – Power supply terminal (+3.3V) (for A/D conversion)
100 METER-BLUE O LED drive signal output of Meter backlight LED
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