Here is a complete list of codes for the Denon AVR-2800. These codes are for controlling the receiver and amplifier features, so no codes are listed for things like the "TV/VCR" A/B button (which is used for controlling the video source of a TV, not the AVR-2800).

I hope the format of the charts stick... Have Fun!!!

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     Denon RC-865       Device Button
     Remote Button       Code   Code
======================= ====== ======
Power Off                0160   248
Power On                 0160   246
1 - DVD                  0160   244
2 - VDP                  0160   152
3 - Tuner                0160   023
4 - TV/DBS               0160   150
6 - Phono                0160   020
7 - VCR-1                0160   151
8 - CD                   0160   027
9 - MD/TAPE              0160   088
+10 - VCR-2/V-AUX        0160   153
SHIFT                    0004   151
CHANNEL  "+"             0004   089
CHANNEL   "-"            0004   087
SPEAKER                  0160   119
DOLBY/DTS SURROUND       0160   251
DIRECT                   0004   201
DSP SIMULATION           0160   249
5 CH STEREO              0004   106
STEREO                   0004   199
INPUT MODE               0004   041
ANALOG                   0160   219
EXT. IN                  0004   039
MASTER VOL - UP          0160   054
MASTER VOL - DOWN        0160   056
MUTING                   0160   058
TUNING - DOWN            0004   216
TUNING - UP              0004   214
TUNING - BAND            0004   085
TUNING - MODE            0004   218
TUNING - MEMORY          0004   155
SYSTEM SETUP             0004   234
SURROUND PARAMETER       0004   230
STATUS                   0160   217
ON SCREEN                0160   213
CURSOR - UP              0004   228
CURSOR - DOWN            0004   235
CURSOR - LEFT            0004   189
CURSOR - RIGHT           0160   215
CH-SELECT/ENTER          0160   250
T. TONE                  0160   120
OUTPUT                   0004   023
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Advanced Codes w/ no                    
 button on the Denon                     Device Button
 RC-865 Remote                            Code   Code
======================                   ====== ======
Power - Toggle On/Off                     0160   022
Video - Select Simulcast with Audio
 Sound Source                             0160   218
CH-SELECT/ENTER -
 This one does not work with the System
 Setup menus"                             0004   101
Tune - Current Preset Channel - Slot "1"  0004   022
Tune - Current Preset Channel - Slot "2"  0004   024
Tune - Current Preset Channel - Slot "3"  0004   020
Tune - Current Preset Channel - Slot "4"  0004   027
Tune - Current Preset Channel - Slot "5"  0004   023
Tune - Current Preset Channel - Slot "6"  0004   025
Tune - Current Preset Channel - Slot "7"  0004   021
Tune - Current Preset Channel - Slot "8"  0004   154
Tune - Current Preset Slot - Channel "A"  0004   166
Tune - Current Preset Slot - Channel "B"  0004   168
Tune - Current Preset Slot - Channel "C"  0004   164
Tune - Current Preset Slot - Channel "D"  0004   171
Tune - Current Preset Slot - Channel "E"  0004   167
Video Source (Scroll to select)           0004   103
Audio Source (Scroll to select)           0004   107
Panel Light Dimmer                        0004   213