I have a sony STR-DA6400ES.
I'm controling it bij RS232 with a global caché and Ipad.
Now i would like to have the feedabck, but i'm struggeling with the commands.
This is how i have to ask the status of main room:
0x02 0x03 0xa0 0x82 0x00 0xdb, so far no problem.
But i don't understand the feedack.

I would like to have the feedback status of:
Mute,
Volume,
Input,
power.

In the sony doc the response of status command is:
0x02 0x07 0xa8 0x82 0x00 0x10 0x10 0x01 0x00 0xb1
where:
0x00: for main room on???
0x10: audio function on video 1
0x10: video fonction on video 1
0x01 : what is this?
0x00: what is this?
0xb1: checksum

but where is my mute status, volume satus, and power status?
I anyone can help, i would appreciate