Looking for replacement for Tandy CM-8 flyback transformer

[OS9dude]

This is listed as P/N RTRNF1644CEZZ on the Service Manual. Searching on HR Diemen's site (www.hrdiemen.com) has not yielded any results, even with partial part number provided... any ideas what a generic replacement would it be? My CM-8 is dead on the water

 

[vwestlife]

Did you reflow all of the solder joints going to the flyback? Thermal cycling often causes them to crack loose from the board.