# DX7IIFD Dead Keys, missing R channel, FD problem

**URL:** <https://forums.syntaur.com/t/dx7iifd-dead-keys-missing-r-channel-fd-problem/2570>\
**Category:** Synth Repair\
**Created:** [December 20, 2020, 4:18pm UTC](https://forums.syntaur.com/t/dx7iifd-dead-keys-missing-r-channel-fd-problem/2570 "2020-12-20T16:18:26Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Bricago](https://forums.syntaur.com/letter_avatar_proxy/v4/letter/b/bc79bd/32.png) [@Bricago](https://forums.syntaur.com/u/Bricago)\
**Post date:** [December 20, 2020, 4:18pm UTC](https://forums.syntaur.com/t/dx7iifd-dead-keys-missing-r-channel-fd-problem/2570/1 "2020-12-20T16:18:26Z")

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I’m repairing a Yamaha DX7IIFD with the following problems. If anyone has any repair solutions, please reply.

Dead keys from C#3 to C4  
Headphone jack only has left channel  
Floppy drive: disks don’t drop down and seat properly

Thank you.