manony Posted December 6, 2013 Share Posted December 6, 2013 Hi everyone, I bought a LK-280 online that had been returned by another customer, but the store said they had checked the keyboard and it was fine. There was a good discount on it so I thought it was worth a try. The keyboard arrived today and inside the package was the original return form from the previous customer stating a complaint that the left keys weren't working. I turned on the keyboard and all the keys seemed fine to me, so I was happy. I spent some time trying out the demo lessons and pressed several buttons to change the settings, and then all of a sudden I noticed a few keys on the left weren't working... just like the original complaint. The strange thing is that I'm fairly certain that the keys worked when I first tried it out, so I must have changed some settings I shouldn't have. The keys concerned are the first 8, including both black and white keys, so starting from the left the "G" is the last one not working. The lights on these keys work fine during the lesson, but when I hit the key there's no sound and the lesson doesn't seem to see I've hit it. Outside of lessons there's no sound or light when I hit these keys. I've searched online and tried several things. According to Casio I was supposed to turn off fingered chords, so I selected full range chords as described on page 38-39 in the manual. Then I tried restoring factory default settings as described on page 8. I actually wasn't sure what the 10-key was supposed to be. I used the "1" key as well as "2" and "3" because it said "-10" and "+10" above it. I also tried "1" and "0" together. None of the above have worked so far. I'm a total noob with Casio keyboards, so if anyone could help me I'd be so grateful! I still have a warranty on the keyboard, but I think it's some setting. Thanks for reading, Manony Quote Link to comment Share on other sites More sharing options...
- T - Posted December 9, 2013 Share Posted December 9, 2013 Manony Most likely the rubber contact strip under the keys has a defective section that needs to be replaced. This is a common problem on older keyboards, but certainly should not be expected on newer units. If possible, you should return the keyboard to the retailer as soon as possible for a refund. I would not be comfortable dealing with any retailer that knowingly returns defective merchandise to the shelf for resale unless they state that it is discounted because it is defective. Good luck ! Quote Link to comment Share on other sites More sharing options...
manony Posted December 10, 2013 Author Share Posted December 10, 2013 Manony Most likely the rubber contact strip under the keys has a defective section that needs to be replaced. This is a common problem on older keyboards, but certainly should not be expected on newer units. If possible, you should return the keyboard to the retailer as soon as possible for a refund. I would not be comfortable dealing with any retailer that knowingly returns defective merchandise to the shelf for resale unless they state that it is discounted because it is defective. Good luck ! Yeah, I was a little too optimistic hoping it would be something I could fix myself. But thanks for your input, I'll return the keyboard and try to get one that works. Quote Link to comment Share on other sites More sharing options...
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