hi ,3FG
in your 10 post you write
"The timing list shows that the correct decode is device 0x40, function 0xB7, or device 64, function 183 in decimal. So when calling IrpMaster 40BF48B7 should be changed to 40BFB748."

yes it's changing, so is there any effect ? and why it's changing ?
i think that's why MY sansui TV is getting ON/OFF
my arduino program detected the below
Decoded NEC: 40BFB748 (32 bits)
Raw (68): -31940 9050 -4350 600 -550 600 -1600 650 -500 550 -500 600 -550 650 -450 600 -500 650 -500 550 -1650 650 -450 650 -1600 600 -1600 650 -1600 650 -1550 700 -1550 550 -1650 650 -1600 650 -450 600 -1650 600 -1600 650 -450 650 -1600 650 -1550 600 -1600 600 -550 650 -1550 600 -550 600 -500 600 -1600 650 -450 600 -550 650 -450 650