Here is the instruction for the TV C825 for your
reference:
- Press the Setting
button on the TV remote.
- Select System-->Menu
Sounds to select the volume you prefer.
firmware
tcl 75 inch onkyo
55p65us
55c655-f
tcl 65p715 firmware
tcl v8 t653t01
qm7k
p655
Here is the instruction for the TV C825 for your
reference:
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