Sony KV-20FS12

Andy King, Mike Morisette, Eli Krause
June 10, 2023, 8:36 pm
November 6, 2024, 8:47 pm

Summary

20" model from Sony's flat screen Wega line. Has RF and composite inputs

Literature

Notes

Unlike the 27" and larger BA-5 Trinitrons, this TV does not have native component inputs. However, its jungle chip is very versatile and can be modified for RGB and YPbPr component video. Please note that due to a different M board design and jungle chip, the RGB mod procedure for the 27" BA-5 Trinitrons doesn't apply.

Composite 240p Performance

by Eli Krause

For composite decoding this set uses a Toshiba TC90A49P, a 3-line digital comb filter. Depending on the console/revision, dot artifacting ranges from slight to severe, and blending effects may be broken. If the set has a component YPbPr input on, then using a good external notch filter to decode composite instead (such as the one in a RetroTink 2X, 5X, etc.) and sending that to the component input would blend all dithering patterns and remove nearly all dot artifacts. A recommended no lag HDMI to component converter is available here (select the bypass version).

TC90A49P

Gallery

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