Sony A95L QD-OLED TV has sound but no picture

The checks in more detail

If there is no light or sound, check the power, plug directly into a wall socket and unplug the TV for a minute. If the home screen appears, press the Input button and cycle through the inputs, checking for the device. Check the HDMI cable, try another port and lower the device's resolution, since a signal the TV cannot handle gives a black screen; the A95L supports high frame rates on certain ports, and a cable not rated for them fails. A soundbar on HDMI eARC can cause a black picture if the handshake loops, so unplug it as a test.

Turn the device on after the TV. Sony has a Picture Off option to save energy while the sound plays; press a button on the remote to wake it, and check Settings, Display and Sound, for it. After a power cut or an update, an OLED may run a panel refresh cycle in standby, during which the TV should not be unplugged. If everything fails, restart the TV by holding the power button on the TV for several seconds, then update the software when you can reach the menu. A black screen with sound on every input and a home screen that is also black suggests a panel or board fault;

contact Sony with the model and serial number, and do not open the TV, since the boards carry high voltage. Sony publishes a Picture Test for its TVs in the Help menu, which shows a test pattern generated inside the TV. If you can reach it, a clean pattern means the panel works and the problem is the source; a pattern with defects means service. An OLED can also show a black screen after a long period of static content if its protection features dim the picture very low, so move the cursor or press a button and look again. If the TV has a Sony Bravia Core connection, check the screen after changing HDMI modes.