Partner: Denon 
Model: AVR-23/28/38/43/5805CI + 
888 + 988 
Device Type: AV Surround Receiver
 
HD_Tuner_Next/Previous_Preset  D  Pulse to step through the tuner presets for HD AM/FM. 
Key_XM_*  D 
Pulse for direct key tuner entry. Note: At least one tuner (Analog, XM, DAB or HD) 
has to be selected in at least 1 zone for direct tuning to work. There are 4 
separate keyboard entry mechanisms (Analog, HD, XM and DAB). Band must be 
selected first to enable keyboard function. 
XM_Tuner_Frequency_Up/Down  D  Press and hold to adjust the tuner channel for XM. 
XM _Preset Memory  D  Press to set XM tuning to a preset. 
XM_Tuner_Preset_*  D  Pulse to select the desired preset for XM. 
XM_Tuner_Next/Previous_Preset  D  Pulse to step through the tuner presets for XM. 
Key_DAB_*  D 
Pulse for direct key tuner entry. Note: At least one tuner (Analog, XM, DAB or HD) 
has to be selected in at least 1 zone for direct tuning to work. There are 4 
separate keyboard entry mechanisms (Analog, HD, XM and DAB). Band must be 
selected first to enable keyboard function. 
DAB_Tuner_Frequency_Up/Down  D  Press and hold to adjust the tuner channel for DAB. 
DAB _Preset Memory  D  Press to set DAB tuning to a preset. 
DAB_Tuner_Preset_*  D  Pulse to select the desired preset for DAB. 
DAB_Tuner_Next/Previous_Preset  D  Pulse to step through the tuner presets for DAB. 
Initialize  D  Pulse to initialize. 
From_Device$  S  Serial signal to be routed from a 2-way serial com port. 
 
FEEDBACK:  
Power_On/Off_Fb  D  High to indicate the current power state of the unit. 
Main_Zone_On/Off_Fb  D  High to indicate the current main zone status. 
Main_Input_*_Fb  D  High to indicate the current main zone source. 
Main_Volume_Bar 
A 
Analog value indicating the current main zone volume level. To be displayed using 
a bar graph on a touch panel. 
Main_Volume_Text$  S  Serial signal indicating the current main zone volume level.