Have you tried other inputs?
See what happens when you toggle PoutP/SPLIT (unusual vertical line in center of pic got me thinking...). Does it line up where the pics split?
Hey I see that you were successful getting in the service menu. I've looked and looked and tried until I'm blue in the face
on my CT-34WX50 to no avail. I've got this:
"-In user setup menu, set antenna to Cable
-Set timer to 30, then exit out of user menu
-On the remote, press 124
-On the remote, press Vol. to zero
-On the set, press volume to zero
-A red CHK with numbers next to it should show up at the top of screen"
but I never get the red CHK, only this box:InterCAT 1999
which doesn't let me do much of anything, more of an info screen (one sub-menu has MTBF numbers).
There was also a shorter method where I press volume to zero on the set then hit INFO/RECALL on the remote but I just get the same box.
If you can point me to a good resource or if it's not too much typing give me a few pointers I'd greatly appreciate it.