service menu adjustment for bowing ?

[mtg]

i have a sony kp-46wt520 and am having some bowing at the top and
bottom of my screen. could someone tell me what i can adjust in the service
menu to try to fix this, thanks !

[57U]

First, have a look at the HDTV FAQ on Service Codes. If you still wish to dabble there, perhaps someone can tell you the correct parameter.

This is a CRT-based RPTV, therefore there may not be such an adjustment since the aiming of the CRTs is done with the manual convergence. You'll likely need to properly line up the various lines to cure any geometry issues. Many people use an overlay, or string to do this.