18KRF-V7300D/V8300D/V9300DPin No. Pin Name I/O Description Logic82 ENC_C2 IN LISTEN MODE encoder input 283 ENC_C1 IN LISTEN MODE encoder input 184 POWER_RLY OUT Power relay.85 ENC_A2 IN MULTI CONTROL encoder INPUT A86 ENC_A1 IN MULTI CONTROL encoder INPUT B87 IPOD_READY IN Ready for iPod.88 ENC_B1 IN SELECTOR encoder input A89 Vdd5 - Power supply90 ENC_B2 IN SELECTOR encoder input B91 Vss - Power supply.92 KEY_1 IN KEY A/D 193 KEY_2 IN KEY A/D 294 FAN LEVEL IN FAN level95 DIST IN model type. H: 9, M: 8, L: 796 TH_D2 IN Thermal sensor detection Diode Stack for iPod.97 DET_S IN Signal level detection Surround98 TUNER_TYPE IN Tuner type L: E, H: J99 S-LEVEL IN RDS signal level detection100 Vref+ - Power supply for A/D converter.KEY MATRIXKEYSW # Key 1 (#92 port) Key 2 (#93) Voltage HEX1 POWER BAND 0.00 02 SPEAKER A/B AV AUX/iPod 0.53 263 MULTI UP STRAIGHT DECODE 1.00 484 MULTI DOWN AUTO/MONO 1.48 6B5 SETUP INPUT MODE 1.97 8F6 ENTER ACTIVE EQ 2.5 B57 DOLBY VIRTUAL PURE AUDIO MODE 2.98 D9Off - - 3.50 FFLEDName Color RemarksSTANDBY RED -DOLBY DIGITAL WHITE -DTS WHITE -STRAIGHT DECODE WHITE -HIGH DEFINITION WHITE -HDMI LINK READY BLUE/WHITE READY: BLUEPURE AUDIO MODE WHITE -CIRCUIT DESCRIPTION