Mailliw
Well-known member
Hi,
I am trying to figure out why the supply reel on my brother's 8-track jh100 machine won't spin. The manual has an analogue torque adjustment procedure, where you adjust a pot to get a proper looking sine wave. So I try this, just to see if it tells me anything...
The supply and takeup reel motors both have test jacks inside the chassis, and I hooked my scope probe upto one incorrectly.
The test jacks take banana plugs, but I didn't have any, so I hooked my scope up from behind, and didn't see two resistors:
When I put a piece of paper in the optical sensor to start the reel motors, I heard a fuse blow...
Now the 5A fuse labeled "main deck" blows everytime I turn the machine on..
I don't understand how this is happening!
Any ideas?
Thanks
I am trying to figure out why the supply reel on my brother's 8-track jh100 machine won't spin. The manual has an analogue torque adjustment procedure, where you adjust a pot to get a proper looking sine wave. So I try this, just to see if it tells me anything...
The supply and takeup reel motors both have test jacks inside the chassis, and I hooked my scope probe upto one incorrectly.
The test jacks take banana plugs, but I didn't have any, so I hooked my scope up from behind, and didn't see two resistors:
When I put a piece of paper in the optical sensor to start the reel motors, I heard a fuse blow...
Now the 5A fuse labeled "main deck" blows everytime I turn the machine on..
I don't understand how this is happening!
Any ideas?
Thanks