====== Pioneer Stereo Amplifier A209R ======

Remote Controller model: CU-A019

start pulse:
^ signal* ^ time ^ description ^
| LOW | 8.6ms | start pulse |
| HIGH | 4.12ms | start pulse |
| LOW | 600 us | bit separator |
| HIGH | 480 us | bit 0<nowiki>**</nowiki> |
| HIGH | 1520 us | bit 1<nowiki>**</nowiki> |
| HIGH  | 25 ms | code repeat interval |

* signal comming from receiver. LOW means RC is transmitting, HIGH - not transmitting.
<nowiki>**</nowiki> assumed that short pulse is 0 long is 1. Not sure about that but if it's the other way - just invert all numbers below

LSBit First …


  * Prefix CD **A25D**
  * Prefix Tuner **A4 5B**
  * Prefix Tape: **A1 5E**
  * Prefix Amp: **A5 5A**

^  Key  ^  Code  ^ prefix ^
| Power CD    | 1C E3 | A2 5D |
| Power Tuner | 1C E3 | A4 5B |
| Power Tape  | 1C E3 | A1 5E |
| Tape select | 4C B3 | A1 5E |
| Tape <      | 15 EA | A1 5E |
| Tape []     | 16 E9 | A1 5E |
| Tape >      | 17 E8 | A1 5E |
| Deck I      | - | |
| Deck II     | - | |
| Tape <<     | 11 EE | A1 5E |
| Tape >>     | 10 EF | A1 5E |
| CD <nowiki>|<<</nowiki>      | 11 EE | A2 5D |
| CD <nowiki>>>|</nowiki>      | 10 EF | A2 5D |
| CD stop []  | 16 E9 | A2 5D |
| CD Play >   | 17 E8 | A2 5D |
| Disk Select | 1D E2 | A2 5D |
| Station -   | 11 EE | A4 5B |
| Station +   | 10 EF | A4 5B |
| Amp CD In   | 4C B3 | A5 5A |
| Amp Tun.In  | 47 B8 | A5 5A |
| Amp Phono In | 4D B2 | A5 5A |
| Vol Up      | 0A F5 | A5 5A |
| Tape 1  In  | 4E B1 | A5 5A |
| Tape 2 In   | 1D E2 | A5 5A |
| Line in     | 4F B0 | A5 5A |
| Vol Down    | 0B F4 | A5 5A |