143Schematic Diagram• BOTTOM VIEWPIN PIN1 JTAG 492 503 51 25/354 +3.3V 535 54 +3.3V6 567 588 59 +3.3V9 6010 +3.3V 61 JTAG12 62 JTAG13 6314 64 +3.3V16 6717 6818 6919 7020 +3.3V 7122 7223 PFC 7324 7426 7527 7628 PWM 8129 82 +3.3V30 +3.3V 83 +3.3V31 PWM 8432 8633 PWM 8734 8835 +3.3V 9036 PWM 91 +3.3V37 PWM 9338 94 JTAG39 PWM 96 JTAG40 +5.0V 9746 98 +3.3V47 +3.3V 99 JTAG48 100 JTAGDefinition DefinitionQuick testpinMemoryFan motor PWM outputModule protection signal inputMemoryPhase-locked loopPhase-locked loopCommunication sendingCommunication receivingPower supply control outputPinPinAuxiliary heat control outputFour-way valve control outputIndicator outputOverload protection singal inputSignal outputPinPinPinPinReset signalIndicator outputCrystal oscillatory pin inputCrystal oscillatory pin inputSignal outputSignal outputFan motor control singal outputSignal outputElectronic expansion valve driving signalElectronic expansion valve driving signalIndicator outputSignal outputSignal outputModels selection portFan motor speed feedback inputElectronic expansion valve driving signalProtection signal inputElectronic expansion valve driving signalDigital groundDigital groundDigital groundDigital groundDigital groundDigital groundDigital groundDigital groundDigital groundDigital groundDigital groundDigital groundZero crossing detectionsignal inputPFC driving level outputU phase current sampling inputW phase current sampling inputV phase current sampling inputAir exhaust sampling inputAmbient temperature sampling inputAir intake sampling inputTube temperature sampling inputCurrent sampling inputBus voltage sampling inputElectronic valve temperaturesampling inputOutdoor unit pin definition