Read Panasonic KX-TS2570RU (serv.man3) Service Manual Supplement online
W: White Version
KX-TS2570RUW, Order No. KM40609205CE.
*The following items (1-8) indicate the reason for change. See the “Notes” column for each part in ORIGINAL AND NEW PARTS
1. Improve performance
*m : Discontinued (To be replaced with a new part)
3. To meet approved specification