HCD-GTR88
52
Pin No. Pin Name I/O Description
58 R2A15216FP-DATA O Serial data output to audio signal processor, R2A15216FP
59 FR SPK RELAY O Relay drive signal output for the front speakers "H":relay on
60 STK MUTE O Power amplifi er on/off control signal output "H": amplifi er on
61 PROTECT I Speaker protect detection signal input from speaker protect circuit "H":protector on
62 VCC - Power supply terminal (+3.3V)
63 LINE-MUTE O Line muting on/off control signal "L":muting on
64 VSS - Ground terminal
65 MTK PWR MON I MTK DMB Board power monitor input pin (A/D input)
66 MIC/HP_DET I Headphone & microphone connection detection signal input (A/D input)
67
OUTPUT LEVEL
DETECT
I Speaker Output Level Detection
68 NO-USE - Unused
69 ILLUMINATOR-INPUT I Power illuminator & METER input signal detection (A/D input)
70 VACS-IN I VACS level detection signal (A/D input)
71 OVERVOLTAGE I Over-voltage protection detection input terminal "L": over-voltage detected
72 TC-STATE I
Tape playback/recording/stop status detection input signal (A/D input)
(Only for African model)
73 NO-USE - Unused
74
POWER/DISPLAY-
KEY
I POWER & DISPLAY key press detection signal (Interrupt input)
75 STBY RELAY O Main power on/off control signal output "H":power on
76 TC_M+9V SW O TCM power supply control signal output "H":power on (Only for African model)
77 METER-IN4 O Meter motor control signal output 4
78 METER-IN3 O Meter motor control signal output 3
79 METER-IN1 O Meter motor control signal output 1
80 METER-IN2 O Meter motor control signal output 2
81 METER SW I Min and Max switch input signal from METER (A/D input)
82 METER PTR LED O Meter Pointer LED control signal. "H" LED ON
83 METER BL CTL O Meter Backlight LED control signal. "H" LED ON
84 LED CTRL O Dynamic LED drive select signal output
85 AD-KEY2 I Key input terminal (A/D input)
86 USB-B LED O Dynamic LED drive signal output to the USB B Blue & Red LED “H”:LED on
87 MASTER VOL I Jog dial pulse input from the MASTER VOLUME encoder (A/D input)
88 LED-VOL1,2 O
Dynamic LED drive signal output to the ILLUMINATION 1st indicator and 2nd indicator
“H”:LED on
89 AD-KEY1 I Key input terminal (A/D input)
90 LED-VOL5,6 O
Dynamic LED drive signal output to the ILLUMINATION 5th indicator and 6h indicator
“H”:LED on
91 LED-VOL3,4 O
Dynamic LED drive signal output to the ILLUMINATION 3rd indicator and 4th indicator
“H”:LED on
92 NO-USE - Unused
93 DEST-IN I Destination setting terminal (A/D input)
94 SW LED/USB A LED O Dynamic LED drive signal output to the Subwoofer LED and USB A LED indicator “H”:LED on
95 STBY LED O LED drive signal output of POWER indicator "H":LED on
96 AVSS - Ground terminal (for A/D conversion)
97 AD-KEY0 I Key input terminal (A/D input)
98 AREF I A/D Converter reference voltage input terminal (+3.3V)
99 AVCC - Power supply terminal (+3.3V) (for A/D conversion)
100 FL-DRIVER-CS O Serial data chip select signal to FL Driver, PT6324
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