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Post by oldjuker on Nov 13, 2023 6:25:51 GMT
Does the latch bar solenoid stay in after you push it in by hand? No |
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Post by oldjuker on Nov 15, 2023 13:34:05 GMT
In answer to your question Marty, the latch solenoid does not stay on when manually operated
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Post by jukeboxmarty on Nov 15, 2023 17:57:46 GMT
Since this was working before, it's likely that the issue developed during your cleaning process.
I would check the keyboard 'reset' switch.
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Post by oldjuker on Nov 15, 2023 23:35:53 GMT
Thanks Marty for the advice. That will be my first inspection area next Sunday when I get back to work. Results to follow.
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Post by jukeboxmarty on Nov 16, 2023 1:11:21 GMT
Also worth mentioning...
If the 'select' light is illuminating the power for the latch bar solenoid is getting to the keyboard, they use the same power.
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Post by oldjuker on Nov 17, 2023 1:13:02 GMT
Yep, got it. Neither light nor latch solenoid work unless I hold solenoid in manually. Should be a contact somewhere not making. This can't be as difficult as what I've already been through.Light is at the end of the tunnel...hoping not a train. Oldjuker
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Post by oldjuker on Nov 21, 2023 2:50:35 GMT
No work this past weekend. Honey-do interruption.Out of town next weekend. So "holiday break". Back later.
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Post by oldjuker on Dec 16, 2023 13:26:37 GMT
Looks like too much going on with jukebox owner (my niece)this whole month of December. Soooo, guess work to finish the 1900 will begin in January. Stand by...
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Post by oldjuker on Jan 16, 2024 5:27:47 GMT
OK gang...back on the 1900 today and here are the updates. First the selection problem is SOLVED and,as suggested, It was a case of the #1 & 2 plugs mis-marked and reversed plugging into the junction box. Thanks Marty. Moving on to the next (and hopefully last) problem, and to correct some statements I made concerning this problem, the latch bar solenoid will not energize when a letter is selected. The select light lights when the letter is pushed in but will not stay in due to latch bar not pulling in. Manually operating the latch bar solenoid WILL allow it to stay energized and a selection can then be completed normally.This leads me to believe the solenoid is not getting enough voltage but have no idea why or if this is even correct. Any ideas what would cause this scenario? Open to all suggestions and Thanks in advance. Oldjuker
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Post by jukenorman on Jan 16, 2024 17:00:02 GMT
According to the schematic, there's a control switch in the latch solenoid circuit which links out a resistor in series with the solenoid until the solenoid pulls in, at which point the switch opens. Sounds like a problem with the switch?
Norman.
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Post by jukeboxmarty on Jan 16, 2024 17:47:38 GMT
Just to add...
The latch bar solenoid should be energized BEFORE any buttons are pressed. In fact, if the unit is on free play, the solenoid should be energized at all times.
Norman's advise is correct, the 'latch solenoid switch' is probably at fault... it may need cleaning/filing/burnishing. The switch is shown on page 28 of the service manual.
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Post by oldjuker on Jan 16, 2024 18:06:15 GMT
Norman & Marty - Thanks for the reply. I will check that switch when I return to the box (probably Sunday)Do appreciate the help. Oldjuker
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Post by jukenorman on Jan 16, 2024 19:07:42 GMT
I did wonder about the latch solenoid not being energised (and the select light) till the button was pushed and whether it was some sort of free play modification - so I took the easy way out and glossed over it!
Norman.
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Post by oldjuker on Jan 16, 2024 21:44:41 GMT
Norman- I have never had a free play component before attached to any of my jukeboxes so don't understand all there is to understand. In my 1800 that I have had for 25 years and put on free play early on, I just disconnected the pawl that returned the wheel with the credits. Of course this meant the latch solenoid was engaged as soon as the box was turned on and stayed engaged all the time. It never burned up (lucky) and has been used many hours since 1988. I did break down and purchase a free play adapter for my 1800 also after all these years. As the owner of the 1900 (my niece) was concerned about this, she opted to buy the free play adapter. We don't have the coin mech for the 1900 anyway so the free play unit was a simple way to make it work. It appears the free play unit energizes the latch solenoid as soon as any letter is pushed and releases the solenoid after completing the selection by pressing a number.In this manner the latch solenoid never stays energized. If only a letter is pressed and you walk away without completing the selection process, after a minute or so the latch solenoid releases and the letter button pops back out. Cool huh. So that is all I really know about the subject except the solenoid won't engage at all unless I manually press it in. It does stay in when you manually press the plunger until you complete the selection process and all works after that. The latch solenoid contact(switch) that was mentioned above must be in need of attention and I will address it and hope for the best.The box is so close to being finished in the restoration process I'm really hopeful this is the last hill to climb. Thanks for your interest. Oldjuker PS- The solenoid did work perfectly before I got the great idea to clean the selector unit.
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Post by jukeboxmarty on Jan 17, 2024 4:02:07 GMT
jukenorman, you guessed it right!... Free play modification! 😲 |
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