14
The disc cannot be
identified
Play the discs that can be
identified by the player.
No sound.
The signal cables are not
connected well.
Connect the signal cables
well.
Just turning on the CD
player, the vacuum tubes
have not been preheated
for enough time.
Wait for about 30 seconds after
turning on power.
The function of the remote
control is not sensitive
Disturbed by something in
surrounding
Remove the disturbing source
The batteries don’t have
enough power
Replace the batteries
There are obstacles
between the remote control
and the unit
Remove the obstacles
Can’t lock the SPDIF signal
SPDIF
cable
is
not
connected well
Connect the SPDIF cable well
No SPDIF signal input
Check if there are any SPDIF signal
output from the SPDIF output
device
Can’t lock the coaxial
signal
Coaxial
cable
is
not
connected well
Connect the coaxial cable well
Coaxial cable do not meet
the requirements
（
75Ω
）
Replace the coaxial signal line
No coaxial signal input
Check if there are any coaxial
signal output from the coaxial
output device
Computer can’t recognize
the device
The USB line is not
according to the USB2.0
specification
Replace the USB line
USB driver has not been
installed
Install the USB driver
USB driver error
Restart the computer
The sound is abnormal
when the input status is
USB
USB socket error
Choose another USB socket
Computer is too busy
Reduce the running application
program
The hardware resource of
computer is too low
Upgrade the computer if necessary
