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Post by Ron Rich on May 15, 2022 11:55:43 GMT
Idea ?? Pete-- dis connect the WP coil-- set 3 pins to the play position-- while playing, make other selections-- does that seem to work OK ? Ron Rich
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Post by prime on May 15, 2022 11:56:30 GMT
Thanks Norman, i will look at both today, also there are two of the coils in the bag with a broken plastic housing for a hammer and an intact one, the wires on the coils have not been stripped so i think they may never have been used. pete ps just saw your post Ron will do.. thanks
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Post by prime on May 15, 2022 12:07:43 GMT
Quick wobble plate switch update, i pulled of the top wire ,tried to activate using pins, nothing moves, tries selector ,write in vibrates the same. I think that eliminates the wobble plate as being defective ? or so i need to connect the two wires from the wobble plate together without it to keep the loop? pete
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Post by Ron Rich on May 15, 2022 13:55:46 GMT
Pete--
NO--do not connect the two wires together !!! That would be the same as a dead shorted coil ! Didja manually pull the wobble plate far enough to activate the switch on it, or were there other pins pulled ( as I wrote) at that time ? Ron Rich
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Post by prime on May 15, 2022 14:32:28 GMT
Yes Ron at the beginning of this post as requested i tried to push the wobble plate switch further for better connection, no change ,also if i dont use the selection buttons to start write in process , and I pull up a lever from the read out side, the wobble switch pulls in properly and the unit plays the selected pin. pete
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Post by jukenorman on May 15, 2022 14:39:48 GMT
Pete,
It's not the wobble plate switch you should be looking at but the wobble plate solenoid - big difference!
Norman.
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Post by prime on May 15, 2022 15:25:02 GMT
Ok i disconnected the solenoid, when i push pins manually the carriage spins like normal, when i select with write in it stops at pin no vibration but misses pin and nothing moves, if i manually push the pin at the moment it stops it sounds like a motor is humming a very low drone, i will go out and see where the sound is coming from.
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Post by jukenorman on May 15, 2022 15:42:44 GMT
When you say it misses the pin, does that mean that the WI hammer coil is operating? And the ADR relay? And of course, nothing else will happen - the wobble plate solenoid (which you have disconnected) needs to operate to close the wobble plate switch!
Norman.
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Post by prime on May 15, 2022 16:51:39 GMT
No what i mean is i cannot adjust the write in to be over a pin because the vibration causes it to move and its always backward. , When i get the vibration issue resolved i am certain i can adjust write in hammer location. With the few schematic i have i have been able to ascertain that the wobble solenoid, the AVR solenoid or coil ,both do not get enough power. I think my issue is in the power supply but the info you sent does not have info or schematics for the power supply. If someone has this i can check it but if not i will have to wait and see if its comes with my manuals from Victory glass. Lastly when i disconnected power to the wobble switch solenoid and selected a song and pushed pin ,vibration was gone but the stop relay coil hums pete
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Post by jukenorman on May 15, 2022 17:41:28 GMT
Stick your meter on the DC voltage again like you did yesterday and get readings. If the voltage is down, of course relays and coils are going to struggle to operate and will hum and vibrate in protest. In that case possibly the wobble plate solenoid is not the culprit, you may have to look elsewhere. The -28VDC power supply is nothing but a bridge recifier. I have a diagram for a 436, it will be very similar if not identical - I can send it to you later but I doubt that it will shed any light on your problem.
Norman.
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Post by prime on May 15, 2022 19:05:01 GMT
When i checked the wobble switch as it was buzzing the power was fluctuating alot, i am still only getting -6.8 vdc at the ADR coil same at the wobble switch solenoid ,these voltages are when the write in is engaged. I need to at lease confirm the power supply is starting with -29vdc or i think i have no chance at finding this.
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Post by jukenorman on May 15, 2022 19:49:35 GMT
Well we know it's starting with -28V because you told us that yesterday!!! You can measure it again if you want!
Now that you know where the K2-1 switch is, stick a bit of card between the two switch blades and the make the write-in selection and measure the voltage. You can measure it at the pink wires going to the ADR relay wrt ground.
Norman.
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Post by prime on May 15, 2022 20:08:08 GMT
OK i placed a card between the blades of K2-1, when starting up the unit i get -29.6 vdc, after i engage the write in the voltage drops to -7.7 vdc, at the same time i see the light comes on at the power supply, correct me if i am wrong the power is coming from the power supply after the write in is engaged and the light is converting ac to dc. pete
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Post by jukenorman on May 15, 2022 20:22:22 GMT
No, I think the light you are seeing light up is the current limiting lamp for the write-in motor - that is part of sequence 9. Can I clarify that when you placed the card between the K2-1 blades that you had it between the two contacts at the end of switch blades - we don't want to be chasing our tails after all!
Norman
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Post by prime on May 15, 2022 20:31:10 GMT
Yes the switch blades on the left, the card was at the end of the blades at the round bumps. Ok i see the stop relay activates at the same time the write in engages but isn't it one complete circle, if there is an issue at that relay can that not create this problem. Lastly if i understand you correctly, if i get -29 vdc at ADR at start up it confirms the power supply is working properly. ps. I also tried the card on the K2-2 side of the switch separately and got the same result.
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