Hex codes with check sums
834501C9 = Power On
834502CA = Standby On
834503CB = TUNER input select
834504CC = CD input select
834505CD = AUX input select
834506CE = PHONO input select
834507CF = DVD input select
834508D0 = VCR1 input select
834509D1 = VCR2 input select
83450aD2 = VCR3 input select
83450bD3 = VCR4 input select
83450cD4 = VCR5 input select
83450dD5 = TAPE input select
83450eD6 = 7.1ch direct input select On/Off
83450fD7 = Master volume up
834510D8 = Master volume down
834511D9 = Main mute On/Off
834515DD = OSD On/Off
834517DF = Cursor move up
834518E0 = Cursor move down
834519E1 = Cursor move left
83451aE2 = Cursor move right
83451bE3 = Sleep On, sleep time adjust and Off
83451cE4 = System display dimmer, Off and On
83451fE7 = Test tone
834526EE = Digital/Analog input select
834527EF = Select Stereo mode
834528F0 = Surround mode select up.
834529F1 = Surround mode select down
83452fF7 = Tuner preset No.0
834530F8 = Tuner preset No. 1
834531F9 = Tuner preset No. 2
834532FA = Tuner preset No. 3
834533FB = Tuner preset No. 4
834534FC = Tuner preset No. 5
834535FD = Tuner preset No. 6
834536FE = Tuner preset No. 7
834537FF = Tuner preset No. 8
834538100 = Tuner preset No. 9
834539101 = Tuner preset scan
83453a102 = Tuner preset up
83453b103 = Tuner preset down
83453c104 = Tuner tune up
83453d105 = Tuner tune down
83453e106 = OSD Enter
83453f107 = Multi-Room On/Off
834541109 = Multi-Room volume up
83454210A = Multi-Room volume down
83454310B = Multi-Room mute On/Off
83454410C = Mutli-Room TUNER input select
83454510D = Multi-Room CD input select
83454610E = Mutli-Room AUX input select
83454710F = Multi-Room PHONO input select
834548110 = Multi-Romm DVD input select
834549111 = Multi-Room VIDEO1 input select
83454a112 = Multi-Room VIDEO2 input select
83454b113 = Multi-Room VIDEO3 input select
83454c114 = Multi-Room VIDEO4 input select
83454d115 = Multi-Room VIDEO5 input select
83455311B = Event request (In the case of check sum error, etc.)
83455411C = Master Volume Level : Low (-40dB)
83455511D = Master Volume Level : Middle (-10dB)
83455611E = Master Volume Level : High (+5dB)