LG 26LX2D problem with hdmi

A couple of years ago I purchased a 26LX2D to place in my game room to use with a cable card. The tv worked great for maybe a month in a half and then stopped working with the cable card. I called cable and they replaced the card. Still not working the cable company pointed to the tv as the problem. Lg sent a repair man to the house they took the tv for a couple of days and said everything checks out. So cable comes by and guess what same problem. I no longer had the box so couldnt return to retailer. Lg would authorize a refund if I could get the repair man to call in and verify my claims. The language barrier was to great between the repair man and I so I just gave up and just ran the cable line to the tv without the card. Now I have moved and have a different use for the tv. I tried to hook up my PS3 via hdmi and the tv is set on hdmi input but says no signal. Does anyone now if there is some hard reset of the tv itself or if there is any firmware issues that can fix my problem I would greatly appreciate the help and thank you in advance.