HCD-GTR333/GTR555/GTR777/GTR888
71
Pin No. Pin Name I/O Description
56 FRR_SPK_LED_RED O
Front Speaker Right RED LED Control Pin. “H”: LED on (Only for HCD-GTR777 and HCD-
GTR888)
57
FRR_SPK_LED_BLUE
O
Front Speaker Right BLUE LED Control Pin. “H”: LED on (Only for HCD-GTR777 and HCD-
GTR888)
58 SWL_SPK_LED_RED O
Subwoofer Speaker Left RED LED Control Pin. “H”: LED on (Only for HCD-GTR777 and
HCD-GTR888)
59
SWL_SPK_LED_BLUE
O
Subwoofer Speaker Left BLUE LED Control Pin. “H”: LED on (Only for HCD-GTR777 and
HCD-GTR888)
60
SWR_SPK_LED_RED
O
Subwoofer Speaker Right RED LED Control Pin. “H”: LED on (Only for HCD-GTR777 and
HCD-GTR888)
61
SWR_SPK_LED_BLUE
O
Subwoofer Speaker Right BLUE LED Control Pin. “H”: LED on (Only for HCD-GTR777 and
HCD-GTR888)
62 VCC2 - Power supply terminal (+3.3V)
63 PCONT(SUB) O 13.5V & 7V Power Switch Control pin. “H”: 13V
64 VSS - Ground terminal
65 PCONT(MAIN) O Digital Amp Module Power Control Pin. “H”: ON
66 SP-RLY O Relay drive signal output for the front speakers “H”: relay on
67 AD-KEY0 I Key input terminal (A/D input)
68 /SD FAST I Power Supply Shutdown Protection Detection Pin. “L”: Protect on
69 FAN-DRIVE/FAN-EN O Fan Control Switch “H”: fan on
70 NO-USE - Unused
71 DAMP_RESET O Digital Amp Reset Pin
72 /FANBLOCK I Fan Block Detection Pin. “L”: Block On
73 RESONANCE DET I Resonance Protection Detection Pin
74 /SD I Digital Amp Shutdown Protection Detection Pin. “L”: Protect on
75 ST_RDS I Input for RDS Text Detect Signal (L: RDS Detect)
76 NO-USE - Unused
77 ST_DATA I/O Tuner IC: Clock signal for IIC communication
78 ST_CLK I/O Tuner IC: Data signal for IIC communication
79 SUB_ON O Main power on/off control signal output “H”: power on
80 /SW-MUTE O
Muting Control Switch for Subwoofer Speaker. “L”: mute on (Only for HCD-GTR555/
HCD-GTR777 and HCD-GTR888)
81 /FRONT-MUTE O Muting Control Switch for Front Speaker. “L”: mute on
82 HUB-VBUS-DETECT O Hub Power (V-DET) Control Port
83 HUB-RESET O MTK Hub Board reset pin
84 /HUB-OC1 I USB Overcurrent Detection input port 1
85 /HUB-OC2 I USB Overcurrent Detection input port 2
86 AUDIO-DATA O Serial data transfer clock signal output to audio signal processor, R2A15216FP
87 AUDIO-CLK O Serial data output to audio signal processor, R2A15216FP
88 MTK-PWR-MONITOR I MTK DMB Board power monitor input pin (A/D input)
89 NO-USE - Unused
90 NO-USE - Unused
91 MIC_DATA_IN I VACS level detection (HCD-GTR777 and HCD-GTR888)
92 NO-USE - Unused
93
MODEL_DESTINATION-IN
I Model and Destination setting terminal (A/D input)
94 AD-KEY1 I Key input terminal (A/D input)
95 MASTER-VOLUME I Jog dial pulse input from the MASTER VOLUME encoder (A/D input)
96 AVSS I Ground terminal (for A/D conversion)
97 NO-USE - Unused
98 VREF I A/D Converter reference voltage input terminal (+3.3V)
99 AVCC - Power supply terminal (+3.3V) (for A/D conversion)
100 NO-USE - Unused
To Next Page
