Mitsubishi VS-50803 Big Screen TV - Trying to hook up an HDTV cable box, I was told to hit: menu, 1, 3, 7, 0 - to get to the service menu and switch DTV over to HD and that would solve my no signal...
First please confirm actual model number on rear of set.
Something is not right here, I am looking at Mitsubishi material downloaded in my computer; shows all codes for sets up to 2004. VS-50803 is a VZ6 Chassis made in 1998 and I doubt it is HD set, if it is one of the early ones it will have beneath the HD input vert sync and Horz sync---those required a special box from Mitsubishi etc.
Set has 3 hidden menus:
1. Option menu (for hard reset)= Menu 1,3,7,0 enter
2. Circuit adjust menu= Menu 2,3,5,7 enter
3. Convergence adjust menu= Menu, 2,3,5,9,enter (#4,5,6 on remote then change modes)
Does the DTV input have the two vert, horz jacks as well?
First is the Option menu is really only for a hard reset of the entire set, if you engaged it you may have de-converged the set.
The adjust menu is for height, width etc
The convergence menu is for convergence.
If you did something and did not save it, unplugging set should put it back to before what you did.
In the OPTION MENU WHAT DID YOU SELECT AND DID YOU HIT ENTER WHEN YOU FINISHED?