I have not checked this model, but LG usually have special remotes to enter service mode. You can use the VENUS 4: 1 programmable remote control, LOGITECH.
Let me say this ... give it up. But if you absolutely want to, then of course the 105-201M. And you have sample descriptions for the entire chassis series LDxx, LCxx. I don't think your LC42 / LD42 is different.
