Marantz PMD620MKII - Manual (Page 89)

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Troubleshooting
Should problems occur, it is often unnecessary to consult
your dealer or technical service department. On the basis of
the following checks, you may be able to rectify a number of
conditions yourself without difficulty. If the condition cannot be
remedied after the following check, please consult your dealer or
service centers.
Service centers are listed at http://www.d-mpro.com.
The PMD620MK II does not turn on.
• Install fresh batteries.
• Check AC adapter connections.
The PMD620MK II turns on then turns itself off.
• Install fresh batteries.
The PMD620MK II seems to record, but there is no sound on
playback.
• Check input settings.
(For example, if LINE input is selected and no input is
connected to the LINE jack, the PMD620MK II will record
silence. The PMD620MK II will not playback.)
There is no audio playback through headphones or internal
speaker.
• Check VOL+/– control setting.
• Check a different audio file or the card.
The PMD620MK II will not record.
• Check that the maximum of 999 files have not been recorded.
• Check that the PMD620MK II acknowledges the card.
No signal from microphone input.
• Check input selection.
• Check REC LEVEL control settings.
• Check if microphone(s) require(s) Phantom power.
There is excessive noise on the PMD620MK II .
• Check cable connections and/or replace cable.
• Check for proper gain levels.
Playback on a PC results in poor sound.
• Check quality of PC sound card and program.
• Check frequency conversion program.*
* The PMD620MK II records audio files with a sampling
frequency of 48kHz. Some PC programs convert the files to
44.1kHz (using a sample rate converter). Only high quality
sample rate converters should be used.
PC cannot read files
• Check the capability of the PC program. Some playback and
editing programs do not support MP3 or Broadcast Wave
(.wav) formats.
• Use DMP Mark Editor to play files recorded with encrypted
recording on a computer.
If the PMD620MK II exhibits erratic behavior, the microprocessor
can be reset by powering off, disconnecting AC power and
removing batteries.
Care and Maintenance
Use a soft cloth slightly moistened with mild detergent solution.
Media cards that are heavily used should be occasionally
reformatted to avoid audio problems due to fragmentation.