LJ
New Member
Posts: 16
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Post by LJ on Jan 16, 2022 21:11:08 GMT
greetings... have a problem with the record basket on my rockola 437 not going into the home or neutral position after returning a record. it misses the location by about 5 records. also when a record selection is made it to misses that selection by about 5 records. its almost as if the main geared shaft that runs through the machine is off but that had never been removed. I can pull a pin on the read out assembly and the arm will stop on that pin number pulled but the basket will spin and miss that pin pulled by about 5 records also. i suspect the read out assembly? its has been pulled with contacts cleaned along wippers and the bands thet go around. someone said maybe its an interlock relay, or write in relay, or optic sensor even though i dont think this machine has one. others say maybe a controller card but im not sure what this might be. What about the wobble switch connected to the micro switch on the right side of the read out assembly thats located up at the top at about 1 oclock? If someone could direct me on what tells the record basket to stop at the neutral or home position i think that would give me a direction to start. working on these jukeboxes is above my grade level, but i like to tinker with this old one with the help of youtube and reading.
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Post by jukenorman on Jan 16, 2022 21:41:02 GMT
Hi LJ, Do you have the manual? The magazine motor is dynamically braked by the interlock relay when a selection is found, see pages 40 & 41 of the manual. Norman.
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LJ
New Member
Posts: 16
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Post by LJ on Jan 17, 2022 17:17:39 GMT
Yes...I do have the manuals. Thank you Sir for that information so much!!!
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LJ
New Member
Posts: 16
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Post by LJ on Jan 18, 2022 6:10:07 GMT
hey guys checked relay and seems to be good. outer band on assembly and homing wiper also all lining up properly in neutral and home position (break in outer band) when record returns and gripper arm comes to its final stop. it still just the basket not lining up at the basket's home or neutral position missing it by 5 records. took write in assembly off again and recleaned pins and contacts. cleaned interlock relay. Again, its almost like if i could just turn the basket on the fixed shaft to the baskets home position and tighten up somehow that would get me close to where it should be. of course to i tryed turning the basket to the home position by the basket motor stem, but it just goes back to missing the home position by 5 records. about to pull my hair out on this one.
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Post by jukenorman on Jan 18, 2022 9:46:50 GMT
Is it a mechanical problem - when the basket stops at the "home" position, can you move the basket by hand? Do not force it though! Also, is this a new problem - did your jukebox previously work OK? Norman.
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LJ
New Member
Posts: 16
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Post by LJ on Jan 20, 2022 15:47:32 GMT
the basket is not stopping at the home position where the record gripper arm would come down and rest. it passes it by about 5 records. the readout carriage arm though finds it's home position on the break in the outer band. i loosened all screws on basket and removed bolts on the basket's tooth gear and removed clip off end shaft on the basket side trying to get a little slack placing and holding the basket in it's home position where the record gripper arm would line up with it and try and move the read out arm to line up and keep it within the broken outer wiper band but cant because of the flat end of the shafts. im missing something somewhere.
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Post by jukenorman on Jan 20, 2022 17:26:49 GMT
Hi LJ, I'm struggling a bit to understand what's going on here but if the homing wiper is finding the home position, that's where the carousel will stop! Check if the read-out arm is loose? If so, tighten it. There is also an adjustment for the read-out arm on page 17 of the manual but you wouldn't expect it to be five slots out so look at the read-out arm first.
Norman.
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Post by Ron Rich on Jan 20, 2022 18:40:47 GMT
Hi LJ, Sounds as if someone has "loosened some screws" already- Read the Service Manual, and use the same terms for items that it does-- "Gripper arm" has no bearing on where the basket homes, or stops ?? The Gripper arm must be in it's "rest position" prior to the basket moving ?? Ron Rich
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LJ
New Member
Posts: 16
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Post by LJ on Jan 20, 2022 19:23:29 GMT
thaks guys..the gripper arm is in its resting position that should be in align with the baskets home position after the selection is finished and the basket spins and comes to a stop, but the baskets position is not in its home position being off by about 5 records. i keep reding the manual and feel im missing something somewhere. the readout arm is not loose and i know the adjustment on that arm only moves a small bit to just line the gripper arm up with record. i was also wondering by chance if there might me a gear inside the middle of the record basket that might have got moved by me pushing and pulling on basket. didnt want to take the player out of the box to try and look in there, but might have to before its all said and done. i would love for someone to set up a facetime call to me so i could show whats going on. and again the homing wiper finds its home position on the outer band but the basket is not.
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Post by jukenorman on Jan 20, 2022 20:18:44 GMT
Can you post a picture or a link to a picture of the read-out arm - similar view to page 19 on the manual.
Norman.
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LJ
New Member
Posts: 16
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Post by LJ on Jan 22, 2022 22:18:43 GMT
hey guys...was trying to send photos to post but it says my attachments are too large. can you maybe give an email and ill sends pictures and video of whats going on. thx larry
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Post by Ron Rich on Jan 22, 2022 22:30:33 GMT
Didja read the "photo's" post in the FAQ's section ? Ron Rich
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LJ
New Member
Posts: 16
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Post by LJ on Jan 23, 2022 4:36:42 GMT
thk ron...no i didnt read it but just did. i did send to your email some pictures to look at if u dont mind. i could send video to but im sure u get hammered all the time. do u by chance know how the center of that record basket is mounted on to the shaft. im thinking maybe a gog gear or something in the middle of that record basket has gotten moved on that stationary shaft( when its not turning)therefore not allowing it to line in up to the baskets home position?
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Post by jukenorman on Jan 23, 2022 11:33:31 GMT
Hi Larry, It's a fairly simple mechanical arrangement you're dealing with - the main shaft is fixed to the basket but the opposite end of the shaft has a groove cut out for fixing the read-out arm as shown on page 19 of the manual. It's possible that if the read-out arm fixing bolt isn't sitting central, that the read-out arm is jammed slightly out of position? The only other possibility is that the selector assembly has moved somehow!
Norman.
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Post by Ron Rich on Jan 23, 2022 14:00:24 GMT
LJ, I did not get the pix ?? Ron Rich
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