Rob, You are talking about the "wait" circuit--I think ?
Yep. It prevents any further operation of either wallboxes or local keyboard as soon as the first pulse reaches the stepper.
Rock-Ola adopted this method in their "sideways" mechs.
Rob
Looking for NJ-area repairman for AMI J (and any helpful advice)
Q&A about all types of jukeboxes: Wurlitzer, Seeburg, Rock-Ola, AMI, and more.
Yep. It prevents any further operation of either wallboxes or local keyboard as soon as the first pulse reaches the stepper.
Rock-Ola adopted this method in their "sideways" mechs.
Rob
"If we believe absurdities, we shall commit atrocities" -- Voltaire
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Ron Rich
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This would not affect what you "hear", when any "pulse generator" is in motion---as it controls -stops- all other generators at that time.
Ron
Ron
That is correct, but it also means that the keyboard or wallbox you are using will not launch again until the pin has been punched and the stepper wheels released and returned to home.
I forget how it was configured in the older AMI series, but on the modular CGA steppers it was a set of contacts that actually touched the tip of the letter stepper arm. This did sometimes lead to the arm not being able to fully home. My solution was to eliminate that set and relocate the function to a spare set of contacts operated by the hold magnet. These are spade lugs so it is just a matter of slipping them off one set and onto the other.
Seeburg didn't bother with this sort of thing because write-in occurs approx 1/5th second after the last pulse. Wurlitzer could have used this on their post 1800 mechs, but didn't.
I don't think it matters much these days, the systems aren't getting the amount of use they did 10-15 years ago.
Rob
I forget how it was configured in the older AMI series, but on the modular CGA steppers it was a set of contacts that actually touched the tip of the letter stepper arm. This did sometimes lead to the arm not being able to fully home. My solution was to eliminate that set and relocate the function to a spare set of contacts operated by the hold magnet. These are spade lugs so it is just a matter of slipping them off one set and onto the other.
Seeburg didn't bother with this sort of thing because write-in occurs approx 1/5th second after the last pulse. Wurlitzer could have used this on their post 1800 mechs, but didn't.
I don't think it matters much these days, the systems aren't getting the amount of use they did 10-15 years ago.
Rob
"If we believe absurdities, we shall commit atrocities" -- Voltaire
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BackwardGirl
Topic author - Junior Member
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- Location: Asbury Park, NJ USA
Ron Rich wrote:Did you try ALL of the people listed in AJ, in NY/NJ ?
Seems like there are a lot of repair persons in that area--
Ron Rich
I think that list might be out of date, but yes, I have left messages with the people on the list that are within a few hours away, but no one has called me back. (most of the NY state repairmen listed are about 4 or more hours away)
So I'm bumping this thread, hoping someone might be lurking who can help me. Currently the jukebox is covered up with an "out of order" sign on it.
BWG
This is not unusual. I contacted at least 15 and only 1 has ever been decent enough to return my call, email and or direct face to face conversation. If it was not for a friend of mine and the helpful people on this board my jukeboxes would not be in good repair.
It is one thing to tell someone they need to pony up the money and hire a repair person, unfortunately there are very few of them that actually will reply to you and show up and do a good job, at least that has been my experience. Many of them will not make house calls and want you to load up a 300 to 400 pound machine in your toyota and bring it to them. So, I fully understand that when you are willing to pay for the repair that it is very frustrating to not be able to find a repair person.
Wishing you the best, perhaps you could place an ad on Craigslist in your area seeking a repair person, who knows you might find a good one?
Best
Darrell
This is not unusual. I contacted at least 15 and only 1 has ever been decent enough to return my call, email and or direct face to face conversation. If it was not for a friend of mine and the helpful people on this board my jukeboxes would not be in good repair.
It is one thing to tell someone they need to pony up the money and hire a repair person, unfortunately there are very few of them that actually will reply to you and show up and do a good job, at least that has been my experience. Many of them will not make house calls and want you to load up a 300 to 400 pound machine in your toyota and bring it to them. So, I fully understand that when you are willing to pay for the repair that it is very frustrating to not be able to find a repair person.
Wishing you the best, perhaps you could place an ad on Craigslist in your area seeking a repair person, who knows you might find a good one?
Best
Darrell
Hi Rob
The cabinet manufacturer was Rose Johnson Inc. Grand Rapids.
Regards
Ross
The cabinet manufacturer was Rose Johnson Inc. Grand Rapids.
Regards
Ross
Rob-NYC wrote:Well, "Backward"I had that same model from summer 1988 till I sold it in early 1992.
Take a look at this page:
http://www.jukebox-world.de/Forum/Archi ... I_K200.htm
It is for a K but the "electrical" type is the same as yours. Scroll way down and you will see the pulse convertor keyboard. On it there is a set of wiper blades, the ones you ordered that slide over a circular set of contacts as it turns. These create a series of pulses corresponding to the letter and number selected and are translated in the Search Unit on the front of the mechanism.
If the blades have been replaced it is possible that they were not formed to exert just enough pressure on the wafer contacts. A simple test is to tale a thin piece of paper and attempt to slid it under each blade. if the pressure is adequate it will be difficult or impossible to get it to slide easily.
Also, the copper contacts on the wafer do get dull over time and if the new blades are not traveling in exactly the same position it is possible that they are now touching an area with poorer-dirtier contact faces.
The Search Unit has a series of relays and two stepper wheels. Problems in this area require a degree of skill and it is possible that parts here have worn and require replacement.
All this aside for a moment, that machine is now 56 years old and if the amplifiers have not been rebuilt it is inadvisable to continue using it. It can easily destroy itself if a capacitor shorts and overloads the power supply.
If you want to continue owning and using it, a service manual is a good idea -both for you and whoever you hire to do work on it. The men who actually operated and worked on these machines are now few and far between.
Here is one place to get a manual: http://www.alwaysjukin.com/items/servic ... s/list.htm The place you bought the wiper blade from may be another.
While the selection system was needlessly complicated, the mechanism was very good and cabinet construction of those pre-Rowe models was the best in the industry. Grand Rapids MI was a center of quality furniture builders and AMI used a well-known company for their juke cabinets (I can't remember the name). AMI was also the only juke box company to produce machine with an acoustically isolated speaker cabinet -all other makers housed the speaker in a common area with the electronics and sometimes also with the mechanism.
The tonearms need some modification to be easier on the records, but beyond that, AMI was a high quality builder.
Rob-NYC
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