Product Description Toshiba circuit boards for MLC head. Used. UPDATE: We have sold 1 of the 3 circuit boards from the set. The set includes: PX52-11890-D1 Sensor I/F No. 1 YWA3154*A (now sold), PX52-12070 Sensor I/F No. 2 YWA3591, PX52-12071 Sensor I/F No. 3 YWA3592.
