eblanc Posted November 17, 2018 Share Posted November 17, 2018 Hi, community, thanks for inviting me to the Forum. I am an electronics technician, and a couple friends of mine asked me for some help with vending machine. The story is this is a Frat house, they bought an old Coca Cola vending machine that they keep in the frat house, that's been sitting there for a while, and they want it to work without having to pay and fill it up with beer cans. I went to diagnose the unit, seems to be working fine, except that the mechanism to count & hold coins is missing, coin just drop from top to bottom. As per the schematic looks like the thing I am missing is called a credit relay. I have attached some pictures. I am wondering if anybody knows how the credit relay works? can i just add a jumper somewhere so that the machine is always reading "infinite credits?" Everything else seems to be working fine, swtiches and relays, buttons and LED's. I'm attaching some pictures There's 2 open 9 pin connector, I'm assuming thats where the coin mechanism goes. I feel I could put a jumper there, if I understand how the coin credit relay works Any help much appreciated, I'm going to attach more pictures. Link to comment Share on other sites More sharing options...
eblanc Posted November 17, 2018 Author Share Posted November 17, 2018 Coin mechanism missing. Link to comment Share on other sites More sharing options...
eblanc Posted November 17, 2018 Author Share Posted November 17, 2018 I have a few more pictures I'm not allowed to post anymore, I think I need to be approved by moderator. I'll post more after Im approved, thank you! Link to comment Share on other sites More sharing options...
BTVFC Posted November 18, 2018 Share Posted November 18, 2018 Invest in, and install the relay.They are relatively inexpensive. You can then purchase (or build) a momentary switch that plugs into the coin mech socket that will cause the relay to energize. Don't jump the relay, it de-energizes after a selection is made. Bypassing it may cause multiple vends with one push of the button. Link to comment Share on other sites More sharing options...
eblanc Posted November 18, 2018 Author Share Posted November 18, 2018 I did see a few videos, and post about Free Vend making a jumper on the Jones connector/Relay. Jumper from pin 1 to 7, and then a switch going from pin 7 to switch, to pin 3 to enable a "Credit"" do you have any experience with this? would love to hear your feedback, thanks! Link to comment Share on other sites More sharing options...
brendio Posted November 19, 2018 Share Posted November 19, 2018 22 hours ago, BTVFC said: Invest in, and install the relay.They are relatively inexpensive. You can then purchase (or build) a momentary switch that plugs into the coin mech socket that will cause the relay to energize. Don't jump the relay, it de-energizes after a selection is made. Bypassing it may cause multiple vends with one push of the button. Here's a thread about making up a cheater cord in place of the coin mechanism. Link to comment Share on other sites More sharing options...
DarkerTech Posted December 7, 2018 Share Posted December 7, 2018 Micromech uses 80ms pulses so a simple jumper might not work. Did you get it figured out? Link to comment Share on other sites More sharing options...
orsd Posted December 9, 2018 Share Posted December 9, 2018 On 12/7/2018 at 5:32 PM, DarkerTech said: Micromech uses 80ms pulses so a simple jumper might not work. Did you get it figured out? This machine ain’t micromech. It’s single price, and the pulse length doesn’t really matter. Link to comment Share on other sites More sharing options...
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