Screen went black, no sound. Plug in ok, no power or weather problems, changed remote batteries. Where is reset button for DP19649?

It sounds like the television isn't turned on! Use the button that is hiding on the outside of the television. They are either on the bottom front under edge, or on the left of right, rear angled quarters.

Batteries should always be changed as new pairs. Always keep a pack of 4 x AA and 4 x AAA. I keep packs of 10, and also C size, D size and MN1500 9 volt. I used to be a Boy Scout, and the motto is "Be Prepared". :>)

Google

make model manual

You can also try a power reset, pull the wall plug for 10 minutes.

Just for info, all questions should have 'make model (what it is)' as the first 3 words.

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I have the exact problem. Already changed main board with no result

J. if you know the lights on remote are to light up and they do not, it is defective, return for replacement or refund. Check the attached links,instruction and guides, Good luck
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Sanyo DP19649 Owner Manual Remote Control Operation
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More likley a capacitor on the power supply blew out. This would be obvious if you diasembled the Tv and checked all the circuit boards.

There is no reset button
Unplug tv for 1 hour then plug back in

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/jason_77a19afa8d604dee

Hello leslie_poo_1. My name is Michael Hurst with DISH Network. I see that when you press select you get a black screen. Try to perform a hard reset by unplugging the receiver from power outlet for 10 seconds then plug it back in. If you still have a black screen press the menu button on your remote. Press Menu, 6, 1, 1, select check switch and then test. Once the test is done exit out of all the menu screens.

Try unplugging it, wait a minute, plug back in.

Replace main board will fix the problem.

plz try by resiting the ram, if the problem persist then you have problem in display adapter,send it to the vendor from whom you have bought