JP1 Remotes

Here are the corresponding pronto hex codes:
Protocol=panasonic Device=20.0 Function=136..189
Device Code: 20.0 Function: 136 toggle bass and treble
0000 0070 0000 0032 0080 0040 0010 0010 0010 0030 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 ...

I did an exhaustive search of all 1024 possible codes for the HE-200, and put most of them in the upgrade file at the Yahoo! file site. Many of them will probably work on the HE-100.

Tone control:
Protocol: 00 C9
Fixed Data: D2 BF FB FA D7
EFC: 061 -> toggles Bass and Treble
EFC: 032 -> decrease ...