A practical sequence
Map the signal path
Write it as TV → connection → DAC or amplifier → speakers. Optical is common and avoids HDMI control quirks, but it normally requires volume control at the audio system. HDMI ARC may allow the TV remote to control volume, but both devices must support the same feature correctly.
Set the TV to stereo PCM
If there is picture but no sound through optical or a stereo DAC, open the television’s digital-audio setting and choose PCM or stereo rather than Dolby or bitstream. Menu names vary by manufacturer, so use the exact model manual.
Choose one everyday volume control
Avoid two hidden volume stages. If optical feeds a DAC with variable output, confirm the start-up level and remote behaviour. If it feeds an amplifier at fixed level, use the amplifier’s volume control and label the input for other household members.
Test ordinary viewing
Check free-to-air television, a streaming app, a connected console and music playback. Listen for lip-sync problems and verify that powering equipment on and off is manageable. Do not add surround processing or a subwoofer unless the room and viewing habits justify it.