the buzzing sound will disappear.
• Please make sure all the cables completely pushed into the
devices, incompletely connection will cause this cracking.
• Please remove all the inputs then check whether cracking noise
disappear or not, the cracking maybe from the audio source or
input cables.
• If you are not using the original factory standard power supply,
please replace the power supply before testing. Many power
supply in the market have large interference coefficient, which will
cause a lot of current sound.
6: Can I use headphone with this product?
• No, theTDA7498E can not be connected to headphones and only
supports passive speakers. If you want to connect to headphone,
you can choose our N2, PH04(4 CH).
7: Why there is no voice from my amplifier?
• Recheck speaker wire connections from the amplifier to each
speaker.
• Verify that the amplifier and your source components are turned
on.
• Please check that the AC wall outlet is on and working.
• Please check that the cable from the power supply is connected to
the amp and the power supply indicator is on.
• Please check that the volume/power knob on the front panel is
turned on and not set to the minimum volume.
• Please check that your audio source(iPad, computer, etc.) are
turned on and not set to the minimum volume, please change the
audio source if you can.
• Please check that the cables from your audio sources are working
and are properly connected.
• Please be sure the Power LED on the amp is on when you switch
it on.