T230A down after changing device.

[chikachika 0]

T230A down after changing device.

I just bought T230A and using under windows 7 Pro.

I installed driver and I can scan the waves using application and can watch TV via T230A.

After setting, once change the  another TV tuner(alternative) and revert to connect T230A, however Connection can not be recovered.

Using crazyscan2, it can be scanned however TV program can not be recovered.

First connection is OK but second connection is not functioned.

Please give  me advise.