Epson EB-L1505UHNL - Other Problems; No Sound Can be Heard or the Sound Is Faint

Check Remedy
Is the Control Panel Lock set to Full Lock?
Press the [
] button on the remote control. If you do not want to use Control Panel Lock, change the setting to
Off.
s "Control Panel Lock" p.122
Is the correct setting for the remote receiver selected? Check the Remote Receiver from the Configuration menu.
s Settings - Remote Receiver p.148
Was the power cord plugged back in or was the breaker turned on
immediately after direct power off?
If the operation described in the column on the left is performed when Direct Power On is set to On, the power may not
turn back on. Press the [
] button to turn on the power.
Is the [ID] switch on the remote control set to On? When the switch is set to On, you can use the remote control to operate only a projector with a matching ID. Set the [ID]
switch to Off.
s "Setting the remote control ID" p.44
Other Problems
No sound can be heard or the sound is faint
Check Remedy
Check that the audio/video cable is securely attached to both the
projector and audio source.
Disconnect the cable from the Audio port, and then reconnect the cable.
Is the projector volume set to the minimum? Adjust the volume so that sound can be heard.
s Settings - Volume p.148
s
"Adjusting the Volume" p.64
Is the volume for the computer or from the image source set to the
minimum?
Adjust the volume so that sound can be heard.
Is A/V Mute active? Press the [A/V Mute] button to release A/V Mute.
s "Hiding the Image and Sound Temporarily (A/V Mute)" p.110
Is the audio cable's specification "No resistance"? When using a commercially available audio cable, make sure it is labeled "No resistance".
Is it connected with an HDMI cable? If no audio is output when connecting via an HDMI cable, set the connected equipment to PCM output.
Is the correct audio input selected? Check the Audio Settings from the configuration menu.
s Extended - A/V Settings - Audio Settings p.150
Problem Solving
200