Hello, my name is*****'ll be happy to assist you.
DVD-F87 is simple DVD player and it has fixed/ standard audio output level, need to use TV remote control to adjust volume while DVD player back sound will come through TV built in speakers when connected to AV input of TV.
Please reply back if DVD is connected to some thing else other than TV or if I missed any point to assist you further. I trust my input will help you out. Please feel free to respond if you have any additional questions.
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