To program the Apex 3201A, follow the instructions for using 
TV/0030 for the Apex AD600A, but use these advanced codes instead...

Playback 
Play *** 186 
Stop 250 
Pause / Step *** 182 
FFwd 116 
Rew 117 
Prev Track 245 
Next Track 244 
Eject (Open/Close) 56 

Navigation 
Title 169 
Menu 181 
Up Arrow *** 100 
Down Arrow *** 232 
Left Arrow 233 
Right Arrow *** 228 
Enter 248 

Playback Features 
Subtitle *** 59 
Angle *** 105 
Display 38 
Slow 39 
Zoom 231 
A/B *** 229 
Enhance *** 185 

Programming 
Program *** 102 
Repeat 183 
Shuffle 57 
Go To 180 

Sound 
Volume Down 55 
Volume Up 53 
Mute 40 
Audio *** 36 
Surround On/Off *** 164 
Equalizer *** 37 
L/R *** 101 

Numerics 
0 247 
1 121 
2 54 
3 58 
4 120 
5 119 
6 123 
7 249 
8 118 
9 122 
10+ *** 104 
Clear 187 

Other Buttons 
Power Off 52 
Setup 251 
PBC 103 
Return *** 184