There is no burning on the carpeting, just the floor underneath. I’m guessing they replaced the carpeting but somehow missed the cable.
ETA: Spoke with my husband, who spoke directly with the manager.
‘‘Yeah, it was something. The wall was on fire.’’
snerk
So the previous window was there without benefit of a hole? 
I have a burnt cable tv wire under the eves of my house. The connection-where the service cable first meets the homes internal cabling-was too hot to touch, had melted the cable jacket and inner conductor insulation, and smelled like burning plastic and smoldering wood. Additionally, as I unscrewed the cable from the female-female adaptor, tiny sparks surrounded the cable-connector connection.
The burnt cable under your carpet was from faulty wiring-a situation which your landlord lied to you about either because he was aware of the problem and could not find the faulty connection, or to prevent lawsuits and/or a good tennant to leave his building. Have an electrician check the wiring. I suspect a fire hazard remains.
Too late. She died in a tragic fire 3 almost years ago.
zombie or no
the thread contains the answer.
Dude, not cool.
Since the issue in the OP was resolved almost three years ago, I’m closing this. If you wish to discuss a new problem, open a new thread.
Colibri
General Questions Moderator