- Is the unit plugged in? (bear with us).
- Does the unit have a flash card in it at all? (remove the front metal plate & check).
- Is the flash card pressed in all the way?
- Is your audio connection good?
- If you are using a serial cable, is it straight through (not null modem)?
- Are your audio files valid? Check them on your PC using Cool Edit (.WAV files) or WinAmp (or another MP3 audio player if you're using the AM4).
- Are your file name formats valid? See the File Names section of the manual to be sure. They are usually the following format:<br>SND00000.WAV, SND00000.AMS,SND00000.SFD,SND00000.MP3
- If copying files from your PC, did you use DOS? If you used windows, save the audio files somewhere. Reformat the card in the Audio Machine using AMI Explorer.
- Take every other piece of control equipment away from the unit, making it stand alone until you get it running. Try to make it operate now either with contact closures or serial commands from a laptop or PC.
- Is the Flash Card damaged? Do you have a second flash card you can temporarily use to make sure the Flash Card isn't just damaged? Go through the file copying process with the new Flash Card, and try to play the file.
- Is the unit damaged? If you can put another MP3 Audio Machine in the circuit, you can rule out the possibilities of a damaged unit. Remember to use the same flash card.
- If the unit shows no response to serial messages typed by hand or from another system:
- Have you validated you are communicating through the serial port correctly? Chosen the right PC comm. port? Using 9600, 8,none,1,no parity? If you want to validate the comm. port is right, use a paperclip to short together pins 2 and 3 on your computer's serial port cable. It should echo back to you the keys you type from a terminal emulator like Hyperterminal.
- Are you using the correct commands listed in the Advanced Serial Protocol Section of the manual? Can you get a version number from the box by using a terminal emulator and typing ?v and pressing Enter?
What is wrong with my Digital Audio Machine?
Here's a general checklist we have compiled of typical things you can check to make sure all the bases are covered:
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