I am looking for the Yamaha RX-V2300 RS232 Protocol, i found one for the RX-V2500 and RX-Vx700 but none for the model what i am looking for.

I have a problem, i am sending commands to the receiver and it does whatever i want it to do, for example, turn it on, turn it off, change the radio preset, etc., the only problem is the response i get from it. The receiver doesn´t respond in one single string the xxxxxxx report command. I have tried using an serial port monitor software and it receives sometimes byte per byte or sometimes 2 bytes per 2 bytes or even 3 o 4, but never the whole string. As i understood from the found protocols it should return a complete string in less than 500ms.

For example i sent 500 and it should answer with xxxxxxxxxxxxxxxx which is the configuration command (of course it is very large)

Does anybody know how or what should i do to get it working? Can it be a Protocol problem?

Thank you very much for your help.
Regards.

PD. i am using null modem cable (as i told it is working very well from the computer to the receiver)