John
01-26-2009, 12:39 PM
Problem: MSA Power LED (LED1) does not light.
Use a multimeter to check the power supply. Check for appropriate voltage & polarity.
With the power supply connected, check the "Power Out" terminals for 5V.
If "Power Out" is not 5V, then check for an IC that is installed backwards, for a short circuit on the board, or if part D2 is backwards.
Problem: MSA Activity LED (LED2) does not blink in response to MIDI.
LED2 should light for about a second when the MSA first powers up. This indicates a healthy microcontroller (IC1). If this doesn't happen, make sure LED2 is not installed backwards, and that IC1 is not installed backwards.
Check MIDI wiring. Then double-check it. :) This is a very common error.
Check IC2: is it inserted into the socket backward?
Check DIP switch settings. Note that changes to DIP switches only take effect when the MSA is powered off, then on again. Make sure that MIDI is being sent to match the channel setting. If using the DIP switch to select a note range, make sure that the correct note #s are being sent to the MSA.
If attempting a configuration via SysEx, make sure that the application sending the message (such as SendSX) is using the correct MIDI interface on the computer. Double-check your SysEx message format. :)
Other problems? Please review the guidelines below & start a new thread.
Troubleshooting Help Request Guidelines
If you need help with your MSA, please include all of the following information in your thread, so that your issue can be solved as quickly as possible:
What are your DIP switch settings?
Have you successfully used a SysEx message to configure the MSA?
Include the contents of the last successful SysEx message used to configure the MSA, or the contents of the SysEx message that you're trying unsuccessfully to send.
What device are you using to send MIDI to the MSA?
Please post details of the MIDI messages being sent to the MSA (e.g.: note number/channel, cc number/value/channel, etc.). If possible, use a capture utility (SendSX works great--link here (http://highlyliquid.com/support/library/midi-sysex/)) to record the messages being sent to the MSA which do not achieve the expected result.
Use a multimeter to check the power supply. Check for appropriate voltage & polarity.
With the power supply connected, check the "Power Out" terminals for 5V.
If "Power Out" is not 5V, then check for an IC that is installed backwards, for a short circuit on the board, or if part D2 is backwards.
Problem: MSA Activity LED (LED2) does not blink in response to MIDI.
LED2 should light for about a second when the MSA first powers up. This indicates a healthy microcontroller (IC1). If this doesn't happen, make sure LED2 is not installed backwards, and that IC1 is not installed backwards.
Check MIDI wiring. Then double-check it. :) This is a very common error.
Check IC2: is it inserted into the socket backward?
Check DIP switch settings. Note that changes to DIP switches only take effect when the MSA is powered off, then on again. Make sure that MIDI is being sent to match the channel setting. If using the DIP switch to select a note range, make sure that the correct note #s are being sent to the MSA.
If attempting a configuration via SysEx, make sure that the application sending the message (such as SendSX) is using the correct MIDI interface on the computer. Double-check your SysEx message format. :)
Other problems? Please review the guidelines below & start a new thread.
Troubleshooting Help Request Guidelines
If you need help with your MSA, please include all of the following information in your thread, so that your issue can be solved as quickly as possible:
What are your DIP switch settings?
Have you successfully used a SysEx message to configure the MSA?
Include the contents of the last successful SysEx message used to configure the MSA, or the contents of the SysEx message that you're trying unsuccessfully to send.
What device are you using to send MIDI to the MSA?
Please post details of the MIDI messages being sent to the MSA (e.g.: note number/channel, cc number/value/channel, etc.). If possible, use a capture utility (SendSX works great--link here (http://highlyliquid.com/support/library/midi-sysex/)) to record the messages being sent to the MSA which do not achieve the expected result.