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Post by dannyz on Sept 3, 2023 13:50:56 GMT
Hello,
When I previously selected a number and letter the record played with no problem. When I make a number and letter selection now I get nothing, not even a sound from the CCU that a credit has been made and canceled. The unit is on free play and it has worked for a long time with no issues.
All fuses are good, everything seems to be good with the exception of not making a selection.
Could this be the latch bar solenoid?
Any help is appreciated.
Thank you,
Danny
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Post by jukenorman on Sept 5, 2023 13:41:36 GMT
Hi Danny,
Well yes I suppose it could be the latch bar solenoid! Do the buttons no longer latch when you try to make a selection when previously they did?
Norman.
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Post by dannyz on Nov 1, 2023 23:15:19 GMT
Norman,
They do not latch whatsoever, BUT, there seems to be no power on the CCU and I was thinking that maybe that solenoid on the CCU finally had too many "machine gun" actions and went bad since there seems to be no resistance when I pull the plunger on the CCU solenoid, it's as if there is no power.
Question, on that solenoid, should I be able to read some amount of resistance within that solenoid?
Thanks,
Danny
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Post by jukeboxmarty on Nov 2, 2023 1:37:57 GMT
The latch bar solenoid has nothing to do with the selection process other than holding down the keys until the selection process is completed. Even if the latch bar solenoid is faulty, you should still be able to make a selection by holding down the desired letter and number keys simultaneously.
If the credit unit has been 'machine gunning', maybe it's stuck in it's rotation. That could prevent the machine from selecting.
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Post by jukenorman on Nov 3, 2023 20:44:11 GMT
Did you check the 2A open fuse at the bottom of the selection receiver? That routes the 25VAC to the CCU. Bear in mind that if it's blown, it's done that for a reason. And if it's OK, the power routes through a normally closed contact of the CCU timing relay.
Norman.
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Post by dannyz on Nov 4, 2023 23:22:06 GMT
Norman,
There is 25 VAC at the CCU, the fuse, 2A is also good per the ohmmeter. I'm thinking that "if" the solenoid is good then there should be some type of voltage on the other side of the solenoid if I isolate the other side of the solenoid. I know that if the circuit is connected, then the voltage will get to ground through the other side of the timing relay.
Do you know what kind of resistance I should be able to read if I isolate the solenoid? I haven't done that yet, but I am wondering if that solenoid has opened up then that could be the problem.
I've read a number of times where it is suggested to check the CCU solenoid, that is why I am asking about it.
Thanks,
Danny
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Post by jukenorman on Nov 5, 2023 13:23:34 GMT
Hi Danny,
25VAC is routed to the cancel solenoid in the CCU via the normally closed contact Y of the timing relay. Even if the cancel solenoid was open circuit you would read 25VAC on one side of the solenoid coil. If the solenoid coil is good, you will read 25AC on both sides of the coil - no need to disconnect anything! The ground side of the cancel solenoid is switched via the button bank starting switches (in series), provided there is credit. The power for the latch solenoid is also switched via contact Y, maybe you should check it? Another thought, you do have credit?
Norman.
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