NAD T585 Service Manual page 20

E
NO
Normal Audio output
when disc playback?
YES
NO
Normal IR.VFD & Front
pannel key functions?
YES
TEST END
Audio DAC received
correct data stream?
YES
Normal Audio DAC
out?
YES
Check Audio filter,amplify,mute
circuit.
Communications between
IR.VFD Front panel l k ey &
ES6168 is normally?
YES
Check the cable connection on
Front pannel.
3-10
NO
Check connection between ES6168
& DDX8001 & Audio DAC.
NO
Check the related
circuit of Audio DAC.
NO
Check communication lines on
ES6168.