Hi Poornima
Thanks for you kindly reply.
as you said, Give standby message from 78842 to Home-Theater, Home-Theater goes to standby mode.
80 00 0F, 80 01 36,
The next step, I just instead of giving active source from TV
80 00 0F, 80 01 85,
Home theater reply but TV(ADV7842) NO respond, CEC bus break off.
Attachment is CEC wave captured.
Regards,
