Chris Browne wrote:
Hi,

My Denon DM 31 cut out a couple of days ago while playing a CD. When i
try to turn it back on, everything seems fine for about a second - it
starts up, the power light goes from red to green, and "CD" appears on
the display, then the thing cuts out, and the power light flashes
yellow. I have mailed denon about this and their only advice was to
disconnect the speakers. This didn't work


My experience with a friends DM-50 led to the discovery of a faulty
volume control. This might be the same issue with your's - dunno.

Basically, the DM-50 design (and maybe DM-31?) uses a digital rotary
encoder to convert the position of the knob to a digital signal that can
be read by the microprocessor on several binary weighted lines. There is
contamination inside the control, so some of the output lines don't
solidly connect. This causes an rapid ceaseof the amplifier output when
the volume is intermittantly wound up very high, the sudden rise in
current triggers the protection circuits.

Have a twiddle with the volume control while watching the display. It
should increase the dB volume setting shown (and the volume played)
without any non-sequenatial jumps. If it does jump about, then the above
explanation is likely, and you will need it looked at.

--
Adrian C