matsushita tm202g

[jb6626]

I have a matsushita tm202g mounted vertically in a millipede cabinet.  After warm up (2-5 minutes) the picture begins to warp from top to bottom and then rolls in the same direction.  No adjustments help the problem.  I have replaced every cap on the chassis along with the IC.  Even after the warping the game plays in the blind.  I was told I have a sync problem but don't know how to fix or adjust that issue.  Any help or ideas will be appreciated!

[qrz]

schematic here: http://pdf.textfiles.com/manuals/ARCADE/SMALLFILENAME/tm202g.pdf

posting a pic might help 

meanwhile, verify that the Vreg circuit is regulating....
and checked/replaced c454, c451,c452,c455,c310

[jb6626]

Talked to an arcade tech that was familiar with this monitor and its problems.  He said the cap at C805 was factory at 33mF@160v and over time it caused sync problems and if changed to 33mF@250v the problem would be corrected.  That cap was changed when I recapped the chassis but was a 160v cap.  I changed it to 33mF@250v and the sync problem was gone.  After adjustments for color, focus and position it's better than a new monitor.  After some cosmetic work another game will be saved from the junk pile.