DX7s Repair (not just a battery change)

Battery change, broken power supply, cracked patch selection PCB and a broken track on the main PCB were all fixed here along with a general cleanup.

[@PabloInformation]

Hey Tech stuff thanks for this video a tip from a vintage synth enthusiast & not profession Technician many People watching these videos my self included are more interested in finding out How to approach taking it apart them selves so they can do basic repairs on their DX2FD than anything else. So showing the process of unscrewing each section fully is very important to people with limited knowledge on the specifics of this model construction. for example i am searching for what to disconnect and NOT to disconnect to get to the key bed & replace 1 broken key in a straight forward manner. Just food for though for future videos cheers!

[@Burfordstechstuff]

Hi. Thanks for your comments. I hear you. Sadly I don’t have the time or the video kit to do the full timelapse piece in disassembly. There’s always a mix of self tapping and machine screws on the DX and I make a diagram of their positions when taking off the base plate. Other than that, when things get complicated, I try to remember to take photos of sub assembly before taking things apart so I can refer to them later. It’s always worth buying a few extra screws I guess. I may do a separate video on disassembly/reassembly techniques and hints. Thanks.

[@paulromsky9527]

Good video, gave you a like, but at 9:12 you show a board mounted battery that you are going to put in, and you will backing out the modification that moved the battery off board (usually to a battery holder - which I didn't see so far in your video, I only saw two wires). Many people prefer the modification to have an off board battery holder (mounted in an easy to access area) so the user can simply open up the DX7, pop out the dead battery, pop in a new battery... and Bob's your uncle! No mucky-muck of cliping/desoldering of an old battery. When I put in battery holders, I velcro the holder to the case so if there is a need to remove the circuit board in the future, the battery holder comes off the case with it.

[@Burfordstechstuff]

Hi Paul. Fair comment. I did consider it but concluded that I probably won’t be doing this in 10 years time and my preference was to restore to original condition. All the best.

[@paulromsky9527]

@@Burfordstechstuff True, the battery does last years. Soldering in the battery may be preferred by gig musicians as it is more reliable.

[@old_romans]

Damn,I should have also made a video... I've so many to my DX7s, thanks to UPS.

[@LALOHERNANDEZPEREZ]

Ayuda por fabor Mi dx7 se quedo en # 88 en la pantalla y no arranca Ya cambie batery y nada Alguien que me ayude