Hmm, that is challenging......
Now, you do have the picture size set for 16:9 , correct?
Try it again in 4:3 mode, and if you cannot get it into 4:3 mode, then switch your cable box over to a low def channel that isn't HD.
Your cable box's guide should show you something like HD in the channel directory -- find one that's not labled as HD or D or DTV on the channel logo or channel number.
Usually that should be easy to access the 4:3 mode -- it should deliver the ENTIRE picture that the cable box is delivering to your TV set.
If you see a clipped picture there -- then LOOK at your Cable box's remote for a ZOOM or ASPECT button first...press it and make ABSOLUTELY SURE it's not zoomed, ok?
Set that to Standard or Normal if it's not.
But -- I do think your TV's Vertical centering is WAY OFF since the Service menu is clipped.
So - This is how we do it when we can't see the whole menu.
Access the service menu.
1] The menu ALWAYS starts at the TOP of the menu
2] Count the settings between OPTION and the DDP 3020/whatever. Arrow down by counting.
3] Press the OK button/Center button
4] Press the Right arrow Key
You should NOW be in the Vertical Postion mode.
Press the Arrow DOWN button and see if the picture moves down.
If it doesn't, try the LEFT Arrow key -- KEEP an eye on the whole picture to see if it moves down or not.
Hopefully it will
If it doesn't, turn OFF the TV so it doesn't store/change the setting you just adjusted.
Try it again. Re-access your menu, count down to the V position setting.
Now, here is the steps I would do.....
Mute 182 Power
Wait for the display
Arrow down ONCE
Enter button next
Then LEFT arrow -- you may have to press it several times to see it move down, I don't think it changes by HOLDING the button down. Press press press press press (5 times)
It should move down....
Now, if you find you have to go all the way down to zero or 60 to get it close, but it's still not on the mark, then that DMD module will have to be moved UP to make the picture go DOWN.
Ugh! What a pain THAT is to align ! Been there, done that! And if you had a good picture when the Tech came out and installed the new DLP chip, then I doubt you have to do the mechanical adjustement on the DMD module !
Let's hope the electrical adjustment does the job.