Harman Kardon ADP 303 follow up

This is an extension to my previous video about this Harman Kardon ADP 303.

What is the difference between an AC-3 decoder and an AC-3 RF decoder? Why would we ever need to use this ADP 303 when most surround receivers already have AC-3 (Dolby Digital) decoding built in?
The answer to these questions can be found in this video.

Here is the repair of this Harman Kardon ADP 303:
https://youtu.be/RzNRsyKa-g8

Dolby Pro Logic (Dolby Surround):
https://en.wikipedia.org/wiki/Dolby_Pro_Logic

Dolby AC-3 (Dolby Digital):
https://en.wikipedia.org/wiki/Dolby_Digital

How audio is stored on laserdiscs:
https://en.wikipedia.org/wiki/LaserDisc#Audio
http://www.precisionlaserdisc.com/newfaq.html
http://originaltrilogy.com/topic/Why-laserdisc-soundtracks-are-better/id/15519

PCM (Pulse-code modulation):
https://en.wikipedia.org/wiki/Pulse-code_modulation

DTS:
https://en.wikipedia.org/wiki/DTS_(sound_system)

Leave a Comment / Question