JD 990 electrical problem

   / JD 990 electrical problem #1  

RKettle

New member
Joined
Feb 22, 2019
Messages
4
Location
Northern Colorado
Tractor
John Deere 990, 1942 Ford 8n
My John Deere 990 won't start unless I put a jumper from the positive post on the battery directly to the starter....Then it starts and runs fine. I assume there is a blown fuse in the mix but can't find it. Any suggestions would be appreciated.
 
   / JD 990 electrical problem #2  
Well, that MIDI Designer patch editor for the 990 looks incredible.

I wonder if he'll expand it to work with a JV-1080 (which holds more of the expansion cards).

I tend not to do much programming on my 1080 just because it's basically menu-diving and it already has more presets than I'm likely to hear in a lifetime, but it does sound really good. Just a simple mixer interface to mix the separate channels would be helpful too.

I have no doubt that that combo would be a good time, especially if you're running a sequencer as well.
 
   / JD 990 electrical problem #3  
I have a PDF of the Deere tech manual you're welcome to, all the wiring is in it, shoot
me your email if wanted

joe
 
   / JD 990 electrical problem #4  
Well, that MIDI Designer patch editor for the 990 looks incredible.

I wonder if he'll expand it to work with a JV-1080 (which holds more of the expansion cards).

I tend not to do much programming on my 1080 just because it's basically menu-diving and it already has more presets than I'm likely to hear in a lifetime, but it does sound really good. Just a simple mixer interface to mix the separate channels would be helpful too.

I have no doubt that that combo would be a good time, especially if you're running a sequencer as well.

Say-NO-to-SPAM-325x321.png


Dale
 
   / JD 990 electrical problem #5  
Did you try jumping to terminal on solenoid to see if you can energize solenoid and spin up starter?

Dale
 
Last edited:
   / JD 990 electrical problem #6  
If a jumper to the solenoid won't crank it and a connection to the starter motor armature does, then the contacts inside the solenoid are worn out. Look on ebay for Denso replacement contacts. It's a common problem. I replaced mine a few years ago. Same symptoms.
 
   / JD 990 electrical problem
  • Thread Starter
#7  
Well, that MIDI Designer patch editor for the 990 looks incredible.

I wonder if he'll expand it to work with a JV-1080 (which holds more of the expansion cards).

I tend not to do much programming on my 1080 just because it's basically menu-diving and it already has more presets than I'm likely to hear in a lifetime, but it does sound really good. Just a simple mixer interface to mix the separate channels would be helpful too.

I have no doubt that that combo would be a good time, especially if you're running a sequencer as well.

:thumbsdown::thumbsdown::thumbsdown::thumbsdown::thumbsdown::thumbsdown::alert::alert::alert:

Spam
 
   / JD 990 electrical problem
  • Thread Starter
#8  
If a jumper to the solenoid won't crank it and a connection to the starter motor armature does, then the contacts inside the solenoid are worn out. Look on ebay for Denso replacement contacts. It's a common problem. I replaced mine a few years ago. Same symptoms.

I'll give that a try today. Thanks
 
   / JD 990 electrical problem #9  
Well, that MIDI Designer patch editor for the 990 looks incredible.

I wonder if he'll expand it to work with a JV-1080 (which holds more of the expansion cards).

I tend not to do much programming on my 1080 just because it's basically menu-diving and it already has more presets than I'm likely to hear in a lifetime, but it does sound really good. Just a simple mixer interface to mix the separate channels would be helpful too.

I have no doubt that that combo would be a good time, especially if you're running a sequencer as well.

My guess is you meant to post this on another forum, not TBN? :laughing:

Your other posts are tractor related. Do you have an audiophile habit as well as a tractor habit? :laughing:
 

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