Well, I would go back a step- how is the audio coming to the receiver? You say the TV mode is too quiet- but don't say what the source of the TV audio is... if you're adjusting the fixed/variable modes on the TV and the audio is actually being supplied directly from a cable box or VCR, then this will make no difference.
Do you have a cable box? Do you have a vcr that you're using to tune the channels? Or do you use the Tv itself to change channels?
If you have a cable/sat box- the audio outputs on that device should be connected directly to the audio input on the receiver- it shouldn't need to go to the TV at all.
If you have a VCR used to tune channels, the same concept applies- the audio output jacks on the VCR should go directly to the receiver...
If you use the Tv itself to tune, in order to get audio from the TV to the receiver- it must have a set of AUDIO OUTPUTs- which I think most of the WEGAs do offer.
These audio outputs come in two flavors: Fixed and Variable. Sometimes a TV set will have both, sometimes one or the other, and sometimes you will have one output that can be switched from variable to fixed via a switch on the back or a user menu...
The fixed kind simply provide the audio from the TV tuner unaltered, and pass it along to the receiver for you. These are the easiest to deal with, and if yours is switchable, it is advised that you select FIXED for your audio output...
If you use variable, the output level sent to the receiver will be dictated by the volume position of the TV. This can be a pain in the butt (having two volume controls)-- but if your set is on "variable" and the volume is down low, it might explain why you don't have much sound.
The other issues to check are:
** Have you tried plugging the TV audio cables into another audio input on the receiver, just to test? There is the possibility there is something wrong with the TV input on the receiver- and so for an experiment, I would try popping it into another input, like CD or VCR or whatever you have available- and try switching to that. Is the volume still too low?
** Have you tried changing the audio cables you're using? While it's unlikely both channels would be bad on an audio cable, it isn't impossible. I might see if you can dig up another set of cables and test that out, just to be sure.
** You should check your manual for any TRIM settings available for the various inputs. Some newer receivers allow you to set a relative volume for each input, so they are closer in level (so if the TV was too loud for example, it could be reduced so you don't blow yourself away switching modes). Make sure yours doesn't have this option, and if it does, that the TV input is not turned down internally relative to the other channels.
** Make sure all dolby processing modes like pro Logic are turned off, for now, while you test. try to take as many variables out of the equation as possible.
Really, your TV level should be noticably louder than DVD (the average level for CD and TV are made to be louder than DVD, there is more info as to why in the FAQ AND PRIMER, if you're interested)-- so if anything the TV should be LOUDEr than the DVD input-- so something is amiss...
-vince