SONY RMU251 Receiver Remote Control is guaranteed to work with the following Audio/Video Receiver models:

Originally supplied with Audio/Video Receiver models: SONY RMP25, SONY STRD86, SONY STRD865, SONY STRGX700ES,

Compatible with Audio/Video Receiver models: SONY DS19590, SONY RMU232, SONY RMU241, SONY RMU242, SONY RMU253, SONY RMU263, SONY RMX88, SONY STRD300, SONY STRD300SS, SONY STRD310 SONY STRD310SS SONY STRD350 SONY STRD350Z SONY STRD36 SONY STRD400 SONY STRD400SS SONY STRD450 SONY STRD450Z SONY STRD510 SONY STRD510SS SONY STRD515/ SONY STRD550 SONY STRD550Z SONY STRD56 SONY STRD600 SONY STRD610 SONY STRD61055 SONY STRD610SS SONY STRD65 SONY STRD705 SONY STRD71 SONY STRD715 SONY STRD715// SONY STRD715//M SONY STRD800 SONY STRD810 SONY STRD810SS SONY STRD915 SONY STRDE405 SONY STRDE415 SONY STRDE5 SONY STRDE6 SONY STRDE605 SONY STRED505