3
16. IF ACOUSTIC FEEDBACK OCCURS
.............................................. 50
................................................................ 51
17.1. Infrared Chairman Unit TS-821 and Infrared Delegate Unit TS-822 ................. 51
18. APPENDIX (INFRARED TRANSMITTER/RECEIVER
.............................................................................................. 54
........................................................................................ 62
19.3. Infrared Chairman Unit TS-821, Infrared Delegate Unit TS-822 ..................... 64
19.4. Microphone (standard) TS-923, Microphone (long) TS-924 ............................ 65
19.9. Distributor YW-1022 (2-branch distributor), YW-1024 (4-branch distributor) .... 67