You need to fix the aging capacitors in the set. Probably only two or three
weak ones by now.
There is no service mode on that tv due to its age.
David


Harry McGuffin wrote in message
news:NcFmb.24761$ao4.34538@attbi_s51...
Folks,

Could anyone help me access the service menu on my Zenith SG2037W (circa
1991)? I would like to slightly adjust the vertical height on the picture
if that adjustment is available on the service menu for this TV. The most
common code listed for Zenith is the HOLD MENU [9] [8] [7] [6] ENTER.
That
does not work at all.