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Post by Ron Rich on Oct 9, 2019 2:46:30 GMT
Hi Steve,
Seeburgs have all combined the negative audio outputs--since the first stereo model, tube type, amps. Ron Rich
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sooner
Full Member
Oklahoma
Posts: 117
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Post by sooner on Oct 9, 2019 5:15:43 GMT
Ron - I was referring to audio amplifiers used in conjunction with MP3 players. Some do not work with negative outputs combined. In those cases the volume control circuit in SC boxes must be modified to separate the negatives to get them to work properly.
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Post by Ron Rich on Oct 9, 2019 13:46:29 GMT
Hi Steve,
Thanks-- Ron Rich
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scudie
Junior Member
Posts: 88
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Post by scudie on Oct 9, 2019 21:05:07 GMT
Hi Folks
I did say that I didn't know which MP3 kit Scotk was thinking of buying, was wondering is there an MP3 kit that has its own amp that is compatible with the common audio ground system that Seeburg use ?
Had a quick look at the Data Sync unit which presumably has its own amp, (Should have at close on $300 ) it has twin Audio plugs RCA? So assume twin positive & negative.
There I pod adapter kit has no Amp & neither does the English walljuke system.
Cheers Scudie
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sooner
Full Member
Oklahoma
Posts: 117
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Post by sooner on Oct 9, 2019 23:32:34 GMT
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scudie
Junior Member
Posts: 88
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Post by scudie on Oct 13, 2019 9:27:09 GMT
Hi Folks
I knew the iPod unit does not have an amp as I have used a couple of them, I am surprised that the other Data Sync wallbox unit has no amp considering its capabilities and price tag!
If as Scotk says that he wishes for the unit to be self contained, I don't think he would be able to use the Data Sync wallbox unit because of its physical size.
Have not seen any posts from him on either forum, wonder if he has had it powered up yet?
Cheers Scudie
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ScotK
Full Member
Posts: 113
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Post by ScotK on Oct 25, 2019 22:46:57 GMT
Hi Scudie,
I've been taking my time deciding what I want to do. And I haven't been checking all the boards that often. I was very surprised given the price tag that the DataSync wallbox has no amp either, that was the main reason I decided not to use it. That and I do want everything as self contained as possible.
Since my APU is missing and it would be neat to be able to accept coins I've decided to roll my own solution for converting my Seeburg SCH1 to MP3. I've settled on a Raspberry Pi with an automation hat as the core. I can use the Pi and automation hat relays to control power to the Seeburg itself (so I can turn on/off the Seeburg with an IR remote and reduce power usage when not in use), and read the coin switches and operate the credit wire connection via a relay as the old APU would have if it were present. It also gives me the ability to select any number of songs/albums via the remote so I'm not limited to just 160, have bluetooth reception (for instance to allow the Seeburg to operate as a bluetooth speaker) or transmission (to a local stereo amplifier for better sound). I plan on connecting a relay to the selector wheel (can't remember the real name of it right now) and read the input on the Pi to figure out what song to play when using the Seeburg buttons. That way I don't have to worry about varying voltages, noise, etc, and the Seeburg and Pi remain electrically isolated from each other, except for the mains power supply which would connect to both the Pi and the Seeburg. It would also replicate the original clicky noise made at the jukebox when the consolette was used (saw that in a youtube video), which would be neat as well. The Pi automation hat will also allow me to read the position of the volume switches as an input, allowing me to use that to set the volume output of the Pi. The Pi sound out would connect to an amp, the amp connect directly to speakers. The trick is going to be fitting it all in. If worse comes to worse I may have to build some kind of base to put it on to house the power supplies or something.
I enjoy projects, and this one is going to be a good one. I'll have to learn quite a bit about the Pi to make it all work. The physical connections will be easy enough, and the automation hat will give me all the inputs and relays I need. I only need to figure out how to jam everything into the Seeburg case and figure out the code on the Pi.
I did power on the wallbox, everything seems to work OK. All the buttons work and make the selection wheel spin. I just can't read the pulse train as I don't have the Pi and hat yet. The only things I still need to select for parts are a good 110vAC to 5vDC 3A power supply for the Pi and the amp. I may have to look for a smaller 24vAC transformer for the wallbox as well. Until I get all the parts and see what kind of space they take up I won't really know. the Pi/Hat and amp are all very small and will fit in the APU space with room leftover. The question is the power supplies.
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ScotK
Full Member
Posts: 113
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Post by ScotK on Oct 26, 2019 0:54:01 GMT
That reminds me, does anyone know a source for the 15 pin connector that would be on the APU11? I need one, else I'll have to splice into several wires. I'd rather not have to, that'd be a real pain.
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Post by Ron Rich on Oct 26, 2019 2:36:30 GMT
Hi Scott,
Didgi-key, or Mouser-- A-MP ( Now TEC) Mate n Loc connector.
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scudie
Junior Member
Posts: 88
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Post by scudie on Oct 26, 2019 16:59:58 GMT
Good Evening Scotk
I am totally out of my depth when it comes to Raspbery Pi.
I hope you will be able to do some kind of tutorial on this subject, to enlighten us mortals as I can see certain advantages to taking this route.
I guess to gain extra space internally you could do away with the slug rejector and coin box?
Steve had the bright idea of fitting a simple push switch behind a coin in the coin aperture, by pressing the coin it operates the switch that is wired to one of the original coin switches thus adding credits, as your credit unit is missing it would trigger a relay on part of your Pi system I guess.
Hope are able to keep us up to date on any progress on the project.
Cheers Paul
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ScotK
Full Member
Posts: 113
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Post by ScotK on Oct 27, 2019 17:27:42 GMT
Hi Paul,
I'm a computer systems engineer by trade. I've worked with Pi's before, they're a nice little machine and cheap too. I've been looking at the schematics for the consolette, it looks like I can hook it up to the coin drop switches and read them as inputs in the Pi. Combining that with having the Pi control a relay connecting pins 1 and 7 on the backplane of the consolette when a coin drop is read will allow me to emulate the APU completely. The Pi can use another input to read the pulse train and play the appropriate MP3. All in the same space as the original APU. I can also use the Pi to light up the album selection bulb on top of the consolette to signal that the Pi is ready when it's turned on. That's my first steps. Everything else I talked about will take quite a bit of time to figure out. I'm a Linux geek since the mid 90's and I've messed with IR, remotes, lircd (the IR receiver daemon under Linux), and much more for other projects around my house so I'm confident I can figure it out given time. I am having a tough time connecting the 24vAC output of the pulses to the 5vDC inputs on the Pi though. There are several solutions and I'm not sure which way would be best, but I'm leaning toward a simple 24vAC relay, which I haven't found yet either.
I'm not a programmer so I'll have some things to learn for how to read and respond to the inputs. That's all software though, which I'm confident in my ability to figure out given time.
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Post by Ron Rich on Oct 27, 2019 17:34:29 GMT
Scot,
A "pile" of info on the SC-SCH units/steppers, is available in the SS 160 Service Manual. See our FAQ's section to purchase a copy, if you wish. Also, the Service manuals for the SC is easy to purchase--ASK, the supplier if he has the SCH type included--MOST DO NOT ( it shoodouttabe, IMHO !)! Ron Rich
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ScotK
Full Member
Posts: 113
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Post by ScotK on Oct 27, 2019 18:24:20 GMT
If you guys want me to share and are ok with keeping this thread going for some time I'll use it to document my progress.
First parts ordered:
15 pin connector, or at least as close I can find. A14246-ND from Digi-key. Hopefully it's correct.
Raspberry Pi 4
Raspberry Pi Automation Hat
I'm considering using a 24v 3amp external power supply (2amps for the box, 1amp for the 5vDC power supply), then I don't have to put the 110vAC transformer in the box, which would help with my space issue. One less thing to try and shove in. I would still have to put a 24vAC to 5vDC supply inside. I don't like the external option though, it would be really ugly. I'll have to see what the space issue looks like after I get the Pi.
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Post by Ron Rich on Oct 27, 2019 21:12:05 GMT
Hi Scot,
Sure--keep this going !
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Post by spetersen on Oct 27, 2019 22:37:15 GMT
Hi Scudie, I've been taking my time deciding what I want to do. And I haven't been checking all the boards that often. I was very surprised given the price tag that the DataSync wallbox has no amp either, that was the main reason I decided not to use it. That and I do want everything as self contained as possible. Since my APU is missing and it would be neat to be able to accept coins I've decided to roll my own solution for converting my Seeburg SCH1 to MP3. I've settled on a Raspberry Pi with an automation hat as the core. I can use the Pi and automation hat relays to control power to the Seeburg itself (so I can turn on/off the Seeburg with an IR remote and reduce power usage when not in use), and read the coin switches and operate the credit wire connection via a relay as the old APU would have if it were present. It also gives me the ability to select any number of songs/albums via the remote so I'm not limited to just 160, have bluetooth reception (for instance to allow the Seeburg to operate as a bluetooth speaker) or transmission (to a local stereo amplifier for better sound). I plan on connecting a relay to the selector wheel (can't remember the real name of it right now) and read the input on the Pi to figure out what song to play when using the Seeburg buttons. That way I don't have to worry about varying voltages, noise, etc, and the Seeburg and Pi remain electrically isolated from each other, except for the mains power supply which would connect to both the Pi and the Seeburg. It would also replicate the original clicky noise made at the jukebox when the consolette was used (saw that in a youtube video), which would be neat as well. The Pi automation hat will also allow me to read the position of the volume switches as an input, allowing me to use that to set the volume output of the Pi. The Pi sound out would connect to an amp, the amp connect directly to speakers. The trick is going to be fitting it all in. If worse comes to worse I may have to build some kind of base to put it on to house the power supplies or something. I enjoy projects, and this one is going to be a good one. I'll have to learn quite a bit about the Pi to make it all work. The physical connections will be easy enough, and the automation hat will give me all the inputs and relays I need. I only need to figure out how to jam everything into the Seeburg case and figure out the code on the Pi. I did power on the wallbox, everything seems to work OK. All the buttons work and make the selection wheel spin. I just can't read the pulse train as I don't have the Pi and hat yet. The only things I still need to select for parts are a good 110vAC to 5vDC 3A power supply for the Pi and the amp. I may have to look for a smaller 24vAC transformer for the wallbox as well. Until I get all the parts and see what kind of space they take up I won't really know. the Pi/Hat and amp are all very small and will fit in the APU space with room leftover. The question is the power supplies. I have just completed a Raspberry Pi jukebox programmed in Python, it works perfectly If you want I can share my files, send me a PM. I only used a Pi zero /w without any hat. You can solve many problems using 5vdc to the pulse train.
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