If the remote control does not operate a Sony® stereo receiver, then it may not be compatible. Some Sony stereo receivers require the use of the original remote control and cannot be operated without it.
However, for other Sony stereo receivers, it may be possible to use the universal remote control by changing the command mode of the stereo system. Sony stereo systems typically need to be set to the AV1 command mode before they will respond to a universal remote control.
NOTE: Refer to the instruction manual of the stereo system for information about possibly changing the command mode. Manuals are posted on your model support page.