I have a Roland VM-3100 mixer. When I hit a combination of the scene saving button the mixer would go into a scrambled screen and lock up. When I rebooted it. The screen came up but had no text or anything on the display. The display does light up. There is just nothing on the screen. I cannot even access any menus to initialize it. Is there anyway to reset the device?
SOURCE: Hi Folks - I have a Roland Fantom G6 that produces
This probably is not a DIY repair... The audio comes out of the CODEC and is buffered by Op Amp used as filters and then goes through the volume controls, After that it goes to the jack board with buffer OP amps. First thoughts might be a damaged volume control, however, the "B" outputs don't go through volume controls...
About the only thing I would think you could do is to CAREFULLY open the unit and look for a loose cable involved with sending the audio to the volume control panel and then the cable that takes the audio to the jack board...
More than that you would probably need to take it to a shop equiped to troubleshoot.
SOURCE: I have a Roland xp60
Two things come to mind: 1. These synths have mute and output control settings. Verify they are correct as even a factory reset might not set them to default. 2. The next thing is that the volume control itself is damaged which requires internal investigation. Was this working and was there an accident with it... dropping manhandling, or accident with power or cables? There could be a cable that has fallen off between the main board and where the audio outs and jacks are. Be very careful if you open this of ribbon cables from the halves of the shell.
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