Thanks very much for the vid it really helped. I just had a heck of a time repairing an old DX7. I just replaced the battery and in doing so Desoldered this blob you can see inbetween the 3v battery positive and negative terminals (3:16) - which revealed 2 pads which were no longer bridge. I did this because on my board it looked like a bit of solder spill that had bridged those 2 pads - but you your video I can clearly see 1 blob of solder between the positive and negative legs of the watch battery (not 2 seperate pads like I had) anyway - I replaced the battery and kept getting a battery check of 2.2v - then I watched this video and noticed that the pads were bridged so I went and did it and now my battery check is all good!
but now my presets are all gibberish like yours - but i dont have a cartridge. I have been trying to load rom1a.sysx using Bome SendSX via midi but the ol DX7 just isnt responding..
@@nyrbsamoht glad the video helped! I always had the cartridge so that was my saviour. I've never dabbled with loading over MIDI so I'm afraid I can't help there.
HUMBERTO CARMONA you must change the battery before sounds will work again. with new battery cartridge sounds will work straight away. Internal sounds have to be loaded as shown right at the end of the video.
Almost didn't want to replace the battery in mine, the corrupted patches can be quite comical albeit not very musical. My favorite so far: patch name C="aaAA@aa"
Hello, from 7:10 onwards I go through it quickly. Basically you have to look through menus (Press EDIT and 14 and / or 15). Cycle through by pressing 14 repeatedly to switch INT protect to off. Then cycle until the screen looks like at 7:21 (Load Cartridge? Bk: 1 FM: Dx7-2) and confirm with OK. Then check your cartridge bank being used is bank 2. This may already be the case but otherwise check screen at 7:30 (Set Bank VP>FS>MT =2). If you don't have the original cartridge to load sounds from, then you may be able to restore via MIDI, but this is not something I have done. Look around RUclips and Google, there's stuff available. This page is good www.alexannesty.com/music/dx7s-restore-factory-voices.php and explains the procedure in a slightly different way. I found mine by trial and error. Best of luck, and thanks for dropping by.
actually i had the very same battery issue on my DX7 mk1, and when i bought the instrument there was only cartridge 2 with it. while the cartridge sounds played perfectly, the internal memory (with some most famous sounds like the e. piano no.11) was completely gone. so i replaced the 2032 and added a battery holder just like shown in the video. i attached the holder with double sided tape somewhere on the left side of the cabinet. to restore the internal sounds, i used MIDIox (a very handy tool, unfortunately it seems to have been discontinued..) sysex transmit to copy the voice data which can easily be found in the internet to the DX7. set up the synth to receive sysex data (as described in the manual), select the .syx file in midiox and click open/send. et voilà, all the sounds are back. easy as 123. :)
I accidentally broke the battery clip off. Seems like my iron doesn't wanna get hot enough to melt the old solder and expose the holes. Only reached 400 degrees. Is that enough?
I'm not sure about temperatures, but I do find adding new solder to old solder can help it melt. Then you have to get rid of it with a suction device or solder wick.
Thank you for making this video- I JUST got as Yamaha DX7 II and it won't make any normal kay sound and gives me the dead battery message, hence, me watching your video. While it is always best to change out old parts for new ones, was it absolutely necessary to install the new battery holder [and all that soldering]? Is it not possible to simply swap in a new CR2032 battery and screw everything back together?
Doug Jacobson thanks for commenting. As the old battery is soldered to the board, the only way to get it out is to unsolder it. You could perhaps solder in a new one, but the battery holder is a better option in my opinion - when you remove the old battery it is not easy to imagine just replacing it as it was.
Panos Chatzigeorgiadis Hi Panos, According to a DX7IID Service Note the Voltage is displayed during the Test. (Right side of the display) the actual Voltage is 1/10th of the value shown.
Hi Martin and thanks for taking the time to reply. Sadly i can not even get into any diagnostics menu. When i press the well known sequence i get instantly the NG sign, synth works as sound but leds freeze. A friend suggested that i own a pre 1.06 v synth and maybe the diagnostics meny is not included. Obiously battery is off cause when i tranfer eg a sound i can hear it nice and loud but when i go to another memory position the sound is gone and i get chinese over the display. What i did for the moment was to copy every singe 64 original internal patches on my ram cartridge so i can use the memory cartridge as internal memory.
Hello Panos, I guess you should definitely have the battery changed then. A quick and easy way to save your patches is the Dexed plugin. I use it all the time to get my sounds on and off my DX7.
will do that this week cause even in the case you sell the dx a synth that needs battery replacement is always a cause to reduce the price since buyers complain all the time that they dont know how to do it so they need to get it to a service person. But i think i will keep that since here is not selling very well, its a gem anyways but i own a dx 7 mk1 too.
Hi, and thanks for your Video. I'd like to add that on my DX7IID the battery check doesn't work. When I press EDIT+16+32 only the firmware version (1.3) is displayed. The internal test routines were implemented Versions 1.6 and higher. On a 30+ year old Synth its probably a good idea to change the battery anyway.
Hi Martin same here probably our dx 7 s - i own a dx7 ii fd - are pre 1.6 OS. But i get garbled characters on the display and i am forced to load sounds from the cart, so need a replacement anyway.
I put two battery holders in parallel so I could have both old and new batteries connected then removed old one that way you don't lose your patches as long as the old battery still has some juice left in it of course.
@@houbsta Another thought I had afterwards was to have the battery outside of the keyboard round the back somewhere to save opening it up, I'll probably do this next time 😁👍
![Noob To Max With DRAGON REWORK In Blox Fruits [FULL MOVIE]](http://i.ytimg.com/vi/LnBMOinoOvA/mqdefault.jpg)
This is a great video, thanks so much. It's given me the confidence to change the battery.
Rooty Kazooty that’s great, let me know how you get on!
Thanks very much for the vid it really helped. I just had a heck of a time repairing an old DX7.
I just replaced the battery and in doing so Desoldered this blob you can see inbetween the 3v battery positive and negative terminals (3:16) - which revealed 2 pads which were no longer bridge. I did this because on my board it looked like a bit of solder spill that had bridged those 2 pads - but you your video I can clearly see 1 blob of solder between the positive and negative legs of the watch battery (not 2 seperate pads like I had)
anyway - I replaced the battery and kept getting a battery check of 2.2v - then I watched this video and noticed that the pads were bridged so I went and did it and now my battery check is all good!
but now my presets are all gibberish like yours - but i dont have a cartridge. I have been trying to load rom1a.sysx using Bome SendSX via midi but the ol DX7 just isnt responding..
@@nyrbsamoht glad the video helped! I always had the cartridge so that was my saviour. I've never dabbled with loading over MIDI so I'm afraid I can't help there.
hello good video ..... how can I restore the sounds as my yamaha does not sound any sound or restore or configure it to sound
HUMBERTO CARMONA you must change the battery before sounds will work again. with new battery cartridge sounds will work straight away. Internal sounds have to be loaded as shown right at the end of the video.
Almost didn't want to replace the battery in mine, the corrupted patches can be quite comical albeit not very musical. My favorite so far: patch name C="aaAA@aa"
Could you explain me step by step how to load the sound of the dx7 II after replacing the battery?
Hello, from 7:10 onwards I go through it quickly.
Basically you have to look through menus (Press EDIT and 14 and / or 15). Cycle through by pressing 14 repeatedly to switch INT protect to off. Then cycle until the screen looks like at 7:21 (Load Cartridge? Bk: 1 FM: Dx7-2) and confirm with OK. Then check your cartridge bank being used is bank 2. This may already be the case but otherwise check screen at 7:30 (Set Bank VP>FS>MT =2).
If you don't have the original cartridge to load sounds from, then you may be able to restore via MIDI, but this is not something I have done. Look around RUclips and Google, there's stuff available. This page is good www.alexannesty.com/music/dx7s-restore-factory-voices.php and explains the procedure in a slightly different way. I found mine by trial and error. Best of luck, and thanks for dropping by.
actually i had the very same battery issue on my DX7 mk1, and when i bought the instrument there was only cartridge 2 with it. while the cartridge sounds played perfectly, the internal memory (with some most famous sounds like the e. piano no.11) was completely gone. so i replaced the 2032 and added a battery holder just like shown in the video. i attached the holder with double sided tape somewhere on the left side of the cabinet.
to restore the internal sounds, i used MIDIox (a very handy tool, unfortunately it seems to have been discontinued..) sysex transmit to copy the voice data which can easily be found in the internet to the DX7. set up the synth to receive sysex data (as described in the manual), select the .syx file in midiox and click open/send. et voilà, all the sounds are back. easy as 123. :)
Would you say that the battery holder will make it easier to replace it in the future?
Yes, absolutely. It's also easier to solder wires to a holder than to solder to a new battery.
I accidentally broke the battery clip off. Seems like my iron doesn't wanna get hot enough to melt the old solder and expose the holes. Only reached 400 degrees. Is that enough?
I'm not sure about temperatures, but I do find adding new solder to old solder can help it melt. Then you have to get rid of it with a suction device or solder wick.
@@houbsta Thanks for the help!
Thank you for making this video- I JUST got as Yamaha DX7 II and it won't make any normal kay sound and gives me the dead battery message, hence, me watching your video. While it is always best to change out old parts for new ones, was it absolutely necessary to install the new battery holder [and all that soldering]? Is it not possible to simply swap in a new CR2032 battery and screw everything back together?
Doug Jacobson thanks for commenting. As the old battery is soldered to the board, the only way to get it out is to unsolder it. You could perhaps solder in a new one, but the battery holder is a better option in my opinion - when you remove the old battery it is not easy to imagine just replacing it as it was.
Hi is there a way to check battery voltage before installing new battery like mk1 in mk2 ? thanks.
Panos Chatzigeorgiadis Hi Panos, According to a DX7IID Service Note the Voltage is displayed during the Test. (Right side of the display) the actual Voltage is 1/10th of the value shown.
Hi Martin and thanks for taking the time to reply. Sadly i can not even get into any diagnostics menu. When i press the well known sequence i get instantly the NG sign, synth works as sound but leds freeze. A friend suggested that i own a pre 1.06 v synth and maybe the diagnostics meny is not included. Obiously battery is off cause when i tranfer eg a sound i can hear it nice and loud but when i go to another memory position the sound is gone and i get chinese over the display. What i did for the moment was to copy every singe 64 original internal patches on my ram cartridge so i can use the memory cartridge as internal memory.
Hello Panos, I guess you should definitely have the battery changed then. A quick and easy way to save your patches is the Dexed plugin. I use it all the time to get my sounds on and off my DX7.
will do that this week cause even in the case you sell the dx a synth that needs battery replacement is always a cause to reduce the price since buyers complain all the time that they dont know how to do it so they need to get it to a service person. But i think i will keep that since here is not selling very well, its a gem anyways but i own a dx 7 mk1 too.
When i press EDIT + 16 +32 I get a "NG" sign is there a fault with my dx 7 mk 2 ?
Panos Chatzigeorgiadis hello, yes if you get NG it means the battery voltage is too low (or too high, but that is unlikely).
Thanks Simon i wil really need to find the proper battery now and someone to do it, best Panos
Hi, and thanks for your Video.
I'd like to add that on my DX7IID the battery check doesn't work. When I press EDIT+16+32 only the firmware version (1.3) is displayed.
The internal test routines were implemented Versions 1.6 and higher. On a 30+ year old Synth its probably a good idea to change the battery anyway.
Hi Martin same here probably our dx 7 s - i own a dx7 ii fd - are pre 1.6 OS. But i get garbled characters on the display and i am forced to load sounds from the cart, so need a replacement anyway.
For a second , I thought I was watching Woody Piano Shack!
I put two battery holders in parallel so I could have both old and new batteries connected then removed old one that way you don't lose your patches as long as the old battery still has some juice left in it of course.
Great idea. Mine was already frazzled before I did the modification.
@@houbsta Another thought I had afterwards was to have the battery outside of the keyboard round the back somewhere to save opening it up, I'll probably do this next time 😁👍
Usefull, thank y ou
It works yep, but it is bodge work.
An DX7S-Editor: ruclips.net/video/Q_OGLjDLPiU/видео.html
Sounds stupid but I assume if you solder the negative and positive up the opposite way, this wouldn't work .. asking for a friend
I'm 100% positive that this will have a negative effect.