Try this simple test

[capstv]

1. Select a CC channel.
2. Turn off 622 CC decoding for TV2
3. Turn your TV2 Television CC on.
Do you get Closed captioning?

[GravelChan]

1. Select a CC channel.
2. Turn off 622 CC decoding for TV2
3. Turn your TV2 Television CC on.
Do you get Closed captioning?

1. CNN (200)
2. 622 CC off - don't see an option for TV2, just on/off
3. TV2 CC on and TV2 has captioning.

Yes, I get captioning. 622 in dual mode.

[Mark Lamutt]

The 622 will only send the CC information to the TV2 television if the 622 is in Dual User mode. The 622 does not send the info in Single User mode because the output signal to TV2 in single user mode is derived from TV1, and the only way to see CC on TV1 is to enable CC decoding on the 622.