What is the flyback number of sharp 21v-fw250s

Hello Armando, the Fly Back number of your Sharp TV is the FO229PE, a replacement is the BSC21-2647S
I hope you can get it
Greetings Franco Dosil

Hola Armando, el numero del Fly Back de tu TV Sharp es el FO229PE, un reemplazo es el BSC21-2647S
Espero lo puedas conseguir
Saludos Franco Dosil
https://elektrotanya.com/sharp_20v-l70m_21v-l70m_21v-l80m_sch.pdf/download.html

you might check this link below it may on may not help good luck.

Flyback transformer for TV Online Purchase

your FBT insulation has deterioted and needs replacement.eventually the sparking problem may increase.also your HOT(horizontal output transistor)will fail if you do not replace your Fly back transformer.

If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Magazine" will make surf easy Pull up older posts. Surf the site with patience.
http://electronicshelponline.blogspot.com/

Download the repair manual to your TV by internet. It has all details.

The diagram is in PDF format. It can't be send to you by this window.

1) test the power supply: line cord, fuse, c.breaker, rectifier, switch, filter.
2) horizontal output +125vdc( HV transformer or flyback, +HV rectifier)
3) all other circuite +12vdc
4) vertical output +80vdc
see the b.diagram attached.
God bless you

gud pm,hi der sino po nakakaalam kung ako ang flyback no ng sharp model no. 21V-R230S