120 Volt Power Debug Fuse Location

It won't be a fuse ; they are for the 12V circuits. Look for a tripped circuit breaker.

I agree; a breaker, not a fuse. Check to see if the breaker panel is labeled. Even if the breaker switch looks to be closed, reset it anyway by flipping it's switch off and then back on again.

Reset all the breakers and the GFCI.

time2roll wrote:
Reset all the breakers and the GFCI.

X2 Besides the CB panel there may be CBs on the inverter.

Since you state the exterior outlet is dead also, that means your GFCI is tripped. FIND the GFCI plug and reset it. The most common place for a GFCI is---first in the Bathroom and second in the Kitchen area. You may have 2 GFCI plugs. These are the 120 receptacles that have the pushbuttons between the 2 plug slots. Doug

You may also have an inverter (This is normally an option save on very high end rigs where it is common) Now inverters come in two flavors One is a small one say 300-600 watts. It can be most anywhere Usually it is a "pass through" type with a built in transfer switch IT MAY HAVE A CIRCUIT BREAKER.

The other kind is a big 'un. 2000-3000-more watts This will have a breaker often two may be on the Inverter itself or in a box (Sub panel) somewhere else in the RV.. one brand of Power distribution center has 3 bus bars (one is for the inverter). I have seen "half the outlets and the TV dont' work" reset the breaker and it was fixed.

The other issue.
In a motor home only if the TV can be seen by the driver (Even if it's a pain in the neck) there is a lock out relay (usually in the box the TV is plugged into) and it can fail.. Rare but it can fail.