JBL PSB-1 Owner's Manual page 14

To reset the IR Learning settings back to factory default, use the following sequence:
1. Press and release Volume Up + Volume Down.
2. Press and release Mute.
3.
Repeat the above two steps 4 more (i.e. 5 total) times.
In other words, follow these ten steps:
1. Press and release Volume Up + Volume Down.
2. Press and release Mute.
3.
Press and release Volume Up + Volume Down.
4. Press and release Mute.
5. Press and release Volume Up + Volume Down.
6.
Press and release Mute.
7. Press and release Volume Up + Volume Down.
8. Press and release Mute.
9.
Press and release Volume Up + Volume Down.
10. Press and release Mute.
The soundbar will then flash a pattern to indicate that the IR learning feature has been reset.
Page 10
Programming the Soundbar to Respond to Any Remote
PSB-1 Owner's Manual