Hi.. and please help! I will only be here for a few days as this was a gift to my dad! So everything worked fine (roku se to Sanyo tv) picture and sound were a ok! I left (they were taking my child for 2 weeks) & during that they called and said they had sound, but no picture. I have tried everything! And again.. everything was fine and worked so I'm pretty sure it's not the TV.. PLEASE HELP!!!!!
What is the model number of the device? It should be on the box. 2710X or something of the sort; four numbers, followed by a suffix of one or two letters.
If it's a Roku SE model 2710, then that's a really old device, circa 2013. So, which device are you using?
DBDukes
Roku Community Streaming Expert
Note: I am not a Roku employee.
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Again, its most likely the "new" Roku SE - the 3930SE/3930S2 (3930).
Try having them connect it another TV then manually configuring the display: Settings/Display/720p TV
Then reconnect it to the first TV.
Otherwise, they can try "blindly" setting it to 720p: hit the Home key a few times then: Up, Right, Down 3x, Right, Down, Select, Select, and assuming they see something at this point, select to confirm.