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Post by jukenorman on Jan 23, 2024 16:54:58 GMT
Strange that it happens with both sides! Maybe you can stop the transfer manually, push the reset lever manually to see how it operates and that it's free. Maybe you might also be able to hear the click of the stopping switch?
norman.
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Post by Deadhead Japan on Jan 23, 2024 18:22:27 GMT
Both stopping switches are clicking. How do go about checking the reset lever? I
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Post by jukenorman on Jan 23, 2024 19:15:40 GMT
When a selection is picked up, the stopping switch actuator will be hard against the pin. If you stop the operation during the transfer with the operate/off/scan switch, the stopping switch will remain in position. You should be able to push the reset lever with your finger to reset the pin. When the pin is reset the stopping switch should change over - that's what I meant by hearing it click. You can always watch the resetting of the pin by the jukebox first before you try to intervene. That operation with the stopping switch should be nice and free with no delays or stickiness.
Norman.
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Post by Deadhead Japan on Jan 24, 2024 0:42:10 GMT
Norman,
Success! I changed out the 100 MFD capacitor under the mech/scan box. Which I could not find in the manual... The juke is not selecting and playing the record. However, I the scan is sometimes rough. More on that later...
I still need to adjust the stopping switches. The pins are not always being pushed in... Especially on the even side. Will report back on my progress.
Progress!
Neal
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Post by Deadhead Japan on Jan 25, 2024 2:21:36 GMT
Norman,
Stopping switches are good... I reset the pin pusher per the manual. The mechanism is working most of the time. There are some faults here and there. It seems that the middle numbers and letters are slightly off when selecting and the pin does not get pushed in. Therefore the magazine will past the selection... I checked and rechecked that the pin selector is on A1. It appears there is an ever so slight bend in the pin pushers. How do I rectify this issue? What does the screws do on the pin pushers? does it move them side to side?
Another thing to note, is that sometimes when the magazine is scanning and I make a selection, the magazine will stop and lock up. If I turn the mech switch off, then turn it back on it will continue on as normal. IDK... its about 90% there... Progress..
Neal
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Post by jukenorman on Jan 25, 2024 11:27:09 GMT
All you can do with the pin pushers is straighten them, they are quite light alloy. I don't recall the screw - picture maybe? Have you serviced the magazine motor? It's difficult to come up with a reason for what you're getting. All I can think of is that the motor is maybe pulling down the DC and stalling at certain points. And when you turn it off, the DC capacitor is charging up and that's giving the motor a "jolt" to get it going when you turn it back on.
Norman.
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Post by Deadhead Japan on Jan 26, 2024 0:55:31 GMT
Norm,
I found the fault with the momentary lags/stopping with magazine motor. The connection to the scan stop switch was loose.
For most part, the box is now running good. Couple of faults every once in a while. Sometimes I am still getting the record setting down and immediately being picked up. Sometimes the selection is still being missed by the pin not being pushed it. I cleaned the wiper/slip ring and the accuracy increased dramatically.
Neal
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Post by Deadhead Japan on Jan 29, 2024 18:14:24 GMT
Norman,
I am still chasing the immediately set down/pick up fault. The mech won't do for many cycles than it will do it all the time. I suspect that CS6 maybe faulty... How quickly is the changeover when CS6 is engaged? Is it instantaneous or is there a delay?
Neal
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Post by jukenorman on Jan 29, 2024 19:11:09 GMT
It should be milliseconds, the sequence was explained further back in the thread somewhere. If the problem occurs on both A and B sides, CS6 is more likely to be the problem. If it's happening on only the A or B sides, it's more likely to be the stopping switch of that side.
Norman.
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Post by Deadhead Japan on Jan 29, 2024 22:37:29 GMT
Norman,
I used incorrect terminology… what I meant was how quickly does the change over on CS6. For example, how quickly does the muting relay energize on/off? I suspect the switch internally is not opening and closing quickly or the internals are gummed up (my box was really nasty inside).
Neal
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Post by jukenorman on Jan 30, 2024 10:21:20 GMT
It's still milliseconds! The switch operates literally in the blink of an eye, maybe I'm not fully understanding your question? CS6 is a changeover switch so it performs two functions, the closing contact energises the reset solenoid and the opening contact de-energises the muting relay. If any oily residue has found its way into the switch, that can make it mechanically sluggish to operate over and above any electrical issues with the contact faces. As an example, CS6 operates in milliseconds (maybe 5 milliseconds), the muting relay operates in milliseconds (maybe 10 milliseconds) so the total would still be milliseconds (maybe 15 milliseconds).
Norman.
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Post by Deadhead Japan on Feb 2, 2024 15:07:10 GMT
Norman,
I believe I have found the problem... I have installed a Victory Glass solid state amp in the box (sounds awesome). The amplifier uses the muting relay to stream Bluetooth when a record is not playing. While troubleshooting CS6 with Bluetooth streaming, by pressing CS6, I noticed that it takes 2 to 3 seconds for the muting relay to deenergize (Bluetooth to stop streaming). I contacted Victory Glass to ask them if there was a built in delay in the amplifier with the muting relay, if there was no delay that I need to move my troubleshooting to a different area. My thought process was I had a faulty CS6 hence my questions above.
Victory Glass responded with they had also observed this malfunction as well and that there is a fix to this by installing a resistor on the amplifier. I will report back once I install the resistor.
Neal
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Post by Deadhead Japan on Mar 28, 2024 16:47:44 GMT
AMI Continental 2:
Getting close to the finish line on my Conti 2 restoration... With the mechanism in cabinet, I attempted to put on the white mechanism cover. I was having difficultly putting it on, Iifted the tonearm off the shaft up to facilitate putting the cover on which did not help. I am fairly confident the ball bearing did not fall out the bushing.
In any event, I pulled the mechanism back out to to put the cover on. Tonearm seems out of whack. Not landing exactly where it's supposed and the tonearm does not track fully through a record. The tonearm gets to random point on the record and stops tracking.
I have readjusted the landing position per the manual and that seems to be back in check. However, the tonearm is tracking properly. What would cause the tone arm to randomly stop tracking and start skipping?
I have a bias spring that is not installed because it seems to work fine without. I am not even sure what the purpose of the bias spring is for.
Thanks in advance!
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