RV Repair: TV inverter repair, fuse block, volt dc

Question
I have a 99 Coachmen Leprechaun class c, just recently bought it last month, the cab-over has an entertainment center with a TV in it,  for some reason the tv will not operate off of 12 volt.  I checked the fuse on the converter and is good, and I am getting power out of it on this circuit off of the converter, but the TV inverter( located behind the tv) is not getting any power is there any fuses off of the chassis fuse block that would cause this?  The TV works fine off of regular 120 volt. Behind the TV there is the power cord from tv that plugs into a inverter which plugs into the wall 120 outlet. for some reason when I bought it the inverter was unplugged and the tv was plugged directly into the 120 outlet.  The other items off of this circuit is the dash stereo and the co detector which operate fine on 12 volt.  Thanks for any ideas.

Answer
Hi Ryan:
I doubt that there is another fuse somewhere. The quickest way to check is to check the 12 volt DC input to the TV inverter. If you have 12 vots into the inverter check the output voltage of the inverter. If there is output 120 volts AC without loading the inverter, that is nothing plugged into it, and you can not maintain the voltage when plugging a load to it then the inverter is bad. If there is no output with a good DC input then the inverter is bad. I would do a quick check here, take the cover off the inverter and look for an output fuse. Most TVs use around 300 watts. That is only about 3 amps at 120 volt AC. The input current at 12 volts DC is 10 times that about 30 amps, 30 amps is a lot of current. It needs at least #8 wire and a lot of battery to maintain. Your battery probably has 60-80 useable amp hours of storage before the voltage drops to a point that the inverter quits working. Thats maybe 2 hours or so of TV watching. To run the converter to keep the battery voltage up makes no sense. You are better off plugging the TV directly into AC 120. What you are saying about the TV inverter seems strange to me. An inverter takes as input 12 volts DC and makes 120 volts AC out of it. It does not plug into 120 AC but connects to the battery. What you have behind the TV might be a voltage conditioning unit to protect the TV from low voltage or voltage spikes that no longer works. Alternatively the outlet the inverter plugs into (if it is really an inverter) might be a DC power outlet. If there is no voltage at the outlet it may have a fuse at the fuse block. You need a volmeter and check the voltages all around. If you find the outlet to be a DC voltage outlet make sure to mark it so that nothing else get plugged into it, bad things can happen. Good luck, be carefull.
Bill