ARRIS DCX3600 User Guide - Manual (Page 36)

Troubleshooting
Set-Top Entertainment Hub DCX3600-M • User Guide 29
365-095-25659 x.1
Problem Possible solution
There is no
audio when
viewing cable
channels • Verify that the mute button on the DCX3600-M or the remote control has not been
pressed. Press MUTE on the remote control to restore sound.
• If the DCX3600-M audio output is connected to the TV, verify that the mute button on
the TV has not been pressed.
• If the DCX3600-M audio output is connected to a home theater receiver, verify that the
receiver is set to the appropriate input source and the mute button on the receiver has
not been pressed.
• Verify that you have the correct cables for the audio connections.
• Verify that the audio cables are firmly connected between the DCX3600-M and the
audio playback device (TV, receiver, DVD player, etc.).
There is no
audio from the
center and/or
surround
speakers of a
home theater
receiver
connected to
the DCX3600-M • Not all Dolby® Digital programs feature full 5.1 surround sound. In some cases, the
programs may only contain left and right stereo audio.
• Verify that the S/PDIF cable is firmly connected to the DCX3600-M and the home theater
receiver.
• Verify that the home theater receiver is set to a surround sound audio mode (Dolby
Digital, Dolby Pro Logic II®, Dolby Pro Logic®).
• Verify that the receiver is properly configured to work with all connected speakers.
There is no
video on the TV
screen • Verify that the TV is powered on and set to the appropriate input source for the
DCX3600-M.
• Verify that the DCX3600-M is powered on and tuned to an authorized cable channel.
• Verify that all video cables between the DCX3600-M and the TV are firmly connected.
• Verify that the coaxial cable feed is firmly connected to the DCX3600-M and the wall jack.
• If the DCX3600-M video output is connected to a home theater unit, verify that the
home theater unit is powered on and set to the appropriate input source.
• If the DCX3600-M video output is connected to a TV through an HDMI connection,
power OFF the TV and then power OFF the DCX3600-M set-top. Wait one second and
then power ON the devices.
No closed
captions
display • Verify in the guide application settings menu that closed captions are enabled on the
DCX3600-M.
Note: Closed captioning may not be available on the current program.
Colors do not
appear
correctly Be sure to match up each signal to the same YPbPr connection on the TV. Otherwise, colors will
not appear correctly on your TV.
The DCX3600-
M set-top is
making a
humming noise The DCX3600-M includes an integrated hard drive and a fan for cooling. During normal
operation, the DCX3600-M emits a low humming noise, similar to a personal computer. The noise
varies in volume occasionally when the speed of the internal fan adjusts to changes in the
temperature around the DCX3600-M set-top. Please note that the cooling fan may remain active
for a short period of time after turning off the DCX3600-M.