Yamaha DX7 IID Repair (Battery Replacement)

Today's project is replacing an old soldered in battery with a new one that can be easily replaced in the future. In this video, I show you how to open it up, where to find the battery, how to replace it, how to put it all back together, and then share some other helpful information Time stamps for the different steps are listed below 0:26 - First Boot up 0:42 - Removing the Bottom Panel 1:04 - First Look Inside 1:08 - Board Identification 1:25 - Removing Screws from Back 1:40 - Removing the DM Board 2:06 - DM Board Wiring 2:29 - Disconnecting the DM Board 2:46 - Desolding Old Battery 3:03 - Modifying Battery Holder 7:10 - Installing New Battery 8:03 - Reinstall DM Board 9:12 - Attaching Battery to Chassis 9:23 - Initializing 10:15 - Turning Local On 11:12 - Finish Reassembling 11:58 - Cleaning Once completing the battery, patches/presets will need to me reinstalled. Next week (Feb 14th 2024), another video will go up with instruction on how to program a DX7 II. A link will be posted here when it is up How to load patches on Windows:    • How To Program a Yamaha DX7 IID (Load Patc...   *Comments have been set to pause as I am no longer looking to give out repair advice via YT comments. This change applies to all my synth repair/upgrade videos*