Re: Yamaha DX-1 Servicing
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Another Gregg here. Before making judgement on a backup battery, it should be measured with the power off. In circuit is ok. It should be within 0.1 V. In other words, it will never be higher than rated, with the power off, but if for example it is a 3.6 VDC battery and reads 3.5VDC it's probably pooched. Panel measurements should probably not be taken to be as accurate, as the method I described.
On Friday, November 8, 2019, 11:20:42 p.m. PST, Brian <briantolson@...> wrote:
? Hi Greg, ? Your battery reading that high means it’s had it and needs replacing, you’ll then need to reinstall the patches of course. ? This will give it a reset and your sustain problem might disappear .. but if not, your sustain switch might be shorted. I presume there’s no sustain pedal plugged in. ? Brian. ? ?
From: greg thurman via Groups.IoSent: Saturday, 9 November 2019 3:36 PM To: YamahaDX@groups.ioSubject: [YamahaDX] Yamaha DX-1 Servicing ? I recently started playing my Yamaha DX-1 as I've had it storage for some year. Not really sure if it could need calibrating so I was wondering if anyone has any ideas on how to tune up/calibrate a DX-1. I check the battery and it read from the keyboard display 4.7 volts. I've never changed it since the 18 or so years that I've had it. I also noticed that it has this sustain to most patches and I'm trying to figure out if there's a sustain mode somewhere on the keyboard where I can decrease that. Thanks for Any Suggestions. GAT ?
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