Marantz professional PMD661 MKIII Guide D'utilisation page 38

Troubleshooting
If you encounter a problem, try doing these things first:
•
Make sure all cables and other connected devices are properly and securely connected.
•
Make sure you are using PMD661MKIII as described in this user guide.
•
Make sure your other devices or media are working properly.
•
If you believe PMD661MKIII is not working properly, check the following table for your
problem and solution.
•
If the PMD661MKIII exhibits erratic behavior, the microprocessor can be reset by powering
off, disconnecting AC power and removing batteries.
Problem
PMD661MKIII does not turn on.
PMD661MKIII turns on then turns
itself off.
PMD661MKIII seems to record, but
there is no sound on playback.
There is no audio playback through
headphones or internal speaker.
PMD661MKIII will not record.
No signal from microphone input.
There is excessive noise on
PMD661MKIII.
Playback on a computer results in
poor sound.
Computer cannot read files.
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Solution
Install fresh batteries.
Make sure PMD661MKIII's power input is properly
connected to a power outlet using the included power
adapter.
Install fresh batteries.
Check input settings. (For example, if the line input is
selected and no input is connected to the line jack, the
PMD661MKIII will record silence. The PMD661MKIII will
not playback.)
Check Hp/Spk Vol control setting.
Check a different audio file or the card.
Check that the maximum of 999 files have not been
recorded.
Check that the PMD661MKIII acknowledges the card.
Check input selection.
Check Rec Level control settings.
Check if microphone(s) require(s) phantom power.
Check cable connections and/or replace cable.
Check for proper gain levels.
Check quality of computer sound card and application.
Check frequency conversion application. (PMD661MKIII
records audio files with a sampling frequency of 48kHz.
Some applications convert the files to 44.1kHz using a
sample rate converter. Only high quality sample rate
converters should be used.)
Check the capability of the playback application. Some
playback and editing applications do not support MP3 or
Broadcast Wave (.wav) formats.
Use DMP Mark Editor to play files recorded with
encrypted recording on a computer.