Avionics Innovations DMP-200 (MP3 Player) Installation Manual - Manual (Page 15)

DMP-200 INSTALLATION MANUAL PAGE 15 OF 18
P/N DMP8012-00 REV E
6.0 Troubleshooting and Error Messages
6.1 Troubleshooting
Here are a few common problems and their potential causes:
Symptom Possible Causes/Solutions
No audio, even though
display shows track
playing. • Volume turned down. Last volume setting is retained between
power cycles, and previous user may have turned volume way
down. Push-and-turn knob to change volume.
• Invalid MP3 file used. The DMP200 will not play MP3-PRO, MP4
(AAC), WAV or WMF files.
• MP3 file recorded at an extremely low volume level. Try playing
the file on a PC to make sure it is audible.
External triggers do not
work, or a track triggers
repeatedly. • Incorrect active levels selected. Each trigger must be configured
to be active high or active low, depending on the installation.
Refer to Section 3.3.2 for details.
• Trigger inputs were not installed with pull-up or pull-down resistor.
One or the other must be present, depending on the installation.
Refer to Section 3.3.2 above for details.
BUSY or CHIME outputs
do not work • Dedicated Annunciator Mode enabled. In this mode, the BUSY
and CHIME outputs are redefined to be active only when the
audio tracks associated with certain external triggers are playing.
Refer to Section 4.1.9 above for details.
Display is too bright or
too dim. • The display is set to one of eight levels of brightness at installation.
This selection cannot be changed in normal operation. It must be
changed from SETUP mode. Refer to Section 4.1.4 above for
details.
Tracks being played do
not match the description
on the display. • In CardPrep, “ Update Settings Only” was selected on the Create
Card tab even though MP3 tracks were changed. This button
may only be used when items such as Triggers and Attributes
have changed, but not the actual MP3 tracks. Regenerate the
card using the
Create Card button.