I don't know for sure about this particular model, but many Konka TVs use an IR protocol that is termed Konka.  Others use a IR protocol termed Aiwa.  A few TVs sold with as Insignia (Best Buy house brand) use the Konka IR protocol.

So try remote codes that are listed for Aiwa and Insignia.

If you want to take a chance on the protocol being Konka, you can get a OneForAll OARC04G  ($11) and use code 11641  (with other remotes made by UEI use TV 1641--but not many have this code).