No Sound Set working fine. sound just quit. All jacks, all inputs

1) First check the mute.
2) Make sure there aren’t headphones plugged in, that will disable the speakers.
3) Check the audio setup
4) Check your Volume lock


Changing Volume Lock
The remote comes preset to allow independent volume control of each selected device (Global Volume Unlock).
However, you may change the Volume Lock setting to Global Volume Lock so that one device’s volume will
control volume in all other modes. After that, you can perform Individual Volume Unlock on a selected device to
set its volume control for independent operation or Global Volume Unlock to remove all volume locking.
Locking Volume Control to One Mode (Global Volume Lock)
1. Press and hold SET until the red LED blinks twice; then release.
2. Enter 9-9-3 and then press the mode key for the device you want to control volume (for example, TV).
The LED blinks twice. Now when you press VOL+, VOL-, or Mute, the selected device (for example,
TV) will control the volume regardless of the current mode.
Unlocking All Volume Control (Restoring Global Unlock)
1. Press and hold SET until the red LED blinks twice; then release.
2. Enter 9-9-3 and then press VOL+. The LED blinks four times. Volume is now
independently controlled for all programmed devices.
Unlocking a Single Device’s Volume Control
1. Press a device key (TV, VCR/DVD, CBL/ SAT, or AUX).
2. Press and hold SET until the red LED blinks twice; then release.
3. Enter 9-9-3 and then press VOL-. The LED blinks four times. Volume is now
independently controlled for the selected