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How to power LEDs in a Touchtunes Allegro jukebox?
lilshawn:
our company just started swapping old allegros off route to upgrade and have been bringing them in the shop to mod them and sell them off as home jukeboxes.
just FYI, for your sound system in the allegro, depending on when it was manufactured, and what you received with your juke, you may have to install some resistors on the amp output for the internal speakers to work stand alone without external speakers attached.
see, when these came out, they came with 2 additional bose 301 speakers you mounted externally to the juke. the amp is designed to work with these speakers connected, as the amp can only go down to a 4 ohm load. the bose 301 speakers are 2 ohms each. so the outputs for the internal speakers and the external speaker connections are wired in series so that 2+2 ohm speakers gets the amp it's 4 ohms minimum it requires.
if you have an early machine with a "euro block" connection for the external speakers and a JST connector for the internal speakers, you will need either two 5.6 ohm 5 watt resistors to wire onto the external speaker output to properly load the amp, or 2 external speakers (4 to 8 ohm is fine) to wire onto the output. otherwise, if the external connection is left empty, only the subwoofer in the allegro will operate. if you have the newer style with 2 sets of euroblocks, you can put one set on the left internal connector and move the right channel onto left set of the external. your sound will be in mono, but it's much easier to setup if you don't have or want external speakers.
note:
since you are swapping out the computer, you will also require a Touchtunes "red" DI box and a manner of powering it (plug mod or the official adapter), or you will need to make a cable and amp to change the balanced input of the juke amp to an unbalanced that the computer outputs. the signal level the amp is expecting is quite high and you may need to boost the signal to get an acceptable volume out of the juke.
let me know if you run into any issues setting this part up. i have a few different options that can work .
billgates2:
--- Quote from: lilshawn on August 01, 2023, 12:52:21 pm ---our company just started swapping old allegros off route to upgrade and have been bringing them in the shop to mod them and sell them off as home jukeboxes.
just FYI, for your sound system in the allegro, depending on when it was manufactured, and what you received with your juke, you may have to install some resistors on the amp output for the internal speakers to work stand alone without external speakers attached.
see, when these came out, they came with 2 additional bose 301 speakers you mounted externally to the juke. the amp is designed to work with these speakers connected, as the amp can only go down to a 4 ohm load. the bose 301 speakers are 2 ohms each. so the outputs for the internal speakers and the external speaker connections are wired in series so that 2+2 ohm speakers gets the amp it's 4 ohms minimum it requires.
if you have an early machine with a "euro block" connection for the external speakers and a JST connector for the internal speakers, you will need either two 5.6 ohm 5 watt resistors to wire onto the external speaker output to properly load the amp, or 2 external speakers (4 to 8 ohm is fine) to wire onto the output. otherwise, if the external connection is left empty, only the subwoofer in the allegro will operate. if you have the newer style with 2 sets of euroblocks, you can put one set on the left internal connector and move the right channel onto left set of the external. your sound will be in mono, but it's much easier to setup if you don't have or want external speakers.
note:
since you are swapping out the computer, you will also require a Touchtunes "red" DI box and a manner of powering it (plug mod or the official adapter), or you will need to make a cable and amp to change the balanced input of the juke amp to an unbalanced that the computer outputs. the signal level the amp is expecting is quite high and you may need to boost the signal to get an acceptable volume out of the juke.
let me know if you run into any issues setting this part up. i have a few different options that can work .
--- End quote ---
Well the person who gave it to me was an operator and he ended up removing the speakers, screen, and bill acceptor so I figured I'd just throw in a decent quality (but nothing too fancy) PC speaker/sub setup. This jukebox is going into an Airbnb and I don't want them to be able to blast it anyway, so it will still work (not Bose-quality of course) but primarily serve as a decor piece in the arcade room. I did end up paying him $100 for the touchscreen so I wouldn't have to source that on my own as they seem pretty expensive. It has a slight screen-burn but nothing too visible. If the screen fails, I'm afraid of how much it would cost to replace - it seems like the same model touchscreens sell for in the range of ~$500!
lilshawn:
if it's one of TT's screens, you can fortunately disassemble the screen fairly easily and swap the panel out with another 19" panel. most of them out there are all the same. i scoop up 4:3 monitors when i come across them for just such an instance.
if it is indeed a TT screen, it'll be either "ELO" or a "general touch" brand. for a hundred bucks, i suspect it's General touch you got. the ELO's are pretty pricey. both are fixable if issues arise in any case.
you aren't worried about the volume, you can tap the computer right into the amp. you get about 1/2 the jukes capable volume at full beans on the computer volume. you need a pre-amp for full power...but like you said if you aren't going to be blasting it... it's honestly fine straight in. i can show you how to make a cable to patch right in when the time comes.
i remove the acceptors and whatnot and just cover the opening with a piece of vinyl covered plastic... put the computer power button and volume control right there.
billgates2:
--- Quote from: lilshawn on August 01, 2023, 06:05:20 pm ---if it's one of TT's screens, you can fortunately disassemble the screen fairly easily and swap the panel out with another 19" panel. most of them out there are all the same. i scoop up 4:3 monitors when i come across them for just such an instance.
if it is indeed a TT screen, it'll be either "ELO" or a "general touch" brand. for a hundred bucks, i suspect it's General touch you got. the ELO's are pretty pricey. both are fixable if issues arise in any case.
you aren't worried about the volume, you can tap the computer right into the amp. you get about 1/2 the jukes capable volume at full beans on the computer volume. you need a pre-amp for full power...but like you said if you aren't going to be blasting it... it's honestly fine straight in. i can show you how to make a cable to patch right in when the time comes.
i remove the acceptors and whatnot and just cover the opening with a piece of vinyl covered plastic... put the computer power button and volume control right there.
--- End quote ---
That's good to know that they can be swapped out with other 4:3's. I guess I got lucky, since mine is an ELO screen. Good idea also about the volume and power buttons. I'll be sure to post a pic of my project once it's completed!
lilshawn:
pics for example... current juke in the works...
https://photos.app.goo.gl/zXsjfx48XbV9mEe26
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