Lg55 led tv hdmi input problem need help

[shopy]

i have a strange problem with my LG 55 led tv HDMI INPUTS.

when i connect the cable tv HDMI to the HDMI input of the lg led tv .the tv says NO SIGNAL .but if i connect to the same inputs a china tv box all is working fine. all the HDMI inputs are the same. non of them work with cable tv but work well with the china tv box.

this happens only on this specific tv another tv i have work fins with the cable tv and with the china tv box.

i cant figure way it happens in this tv only.

thanks, to the helpers?

[Davi.p]

Re: Lg55 led tv hdmi input problem need help

this happens only on this specific tv another tv i have work fins with the cable tv and with the china tv box.

the other tvs with the same cable tv connector/ cable?

[shopy]

Re: Lg55 led tv hdmi input problem need help

yes the other tv are the same hdmi inputs and all work fine.

[Davi.p]

Re: Lg55 led tv hdmi input problem need help

Can you post a Picture or the label code of the.main board? In other way you can search the service menu for a function to rewrite the HDMI edid, in Samsung it is posible, LG i dont know, needed soecial smartphone app for emulaten LG service menu and a IR blaster / dongle