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AMI MODEL B
Hi, i have a ami model b, which will not reject, the mech got stuck,
i freed it up, and now the micro switch will not reject the record, nor will the reject button on the back of the machine work, i have a manual, but no help in the trouble shooting section on this prob, Any suggestions would be apprectiated, thanks |
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#2
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AMI MODEL B
wayne wrote:
Hi, i have a ami model b, which will not reject, the mech got stuck, i freed it up, and now the micro switch will not reject the record, nor will the reject button on the back of the machine work, i have a manual, but no help in the trouble shooting section on this prob, Any suggestions would be apprectiated, thanks If one of the micro switches is faulty the motor will run further than it's normal range and get stuck there until you turn it out again by hand. I *think* it's one of the switches in the front of the moving mech. One that a selected record pin is tripped with. Some of them are tough. You are very lucky if you can find a new switch. Like most people, I take the switch apart and rebuild it. Careful not to loose any tiny flying parts, open it up inside a box that may catch a flying spring. I suppose I should mention these switches could be out of adjustment. I've never had one with that problem that didn't need the switch rebuilt. An adjustment may make it work for a short while, but usually not for long. Tony |
#3
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AMI MODEL B
Tony wrote:
wayne wrote: Hi, i have a ami model b, which will not reject, the mech got stuck, i freed it up, and now the micro switch will not reject the record, nor will the reject button on the back of the machine work, i have a manual, but no help in the trouble shooting section on this prob, Any suggestions would be apprectiated, thanks If one of the micro switches is faulty the motor will run further than it's normal range and get stuck there until you turn it out again by hand. I *think* it's one of the switches in the front of the moving mech. One that a selected record pin is tripped with. Some of them are tough. You are very lucky if you can find a new switch. Like most people, I take the switch apart and rebuild it. Careful not to loose any tiny flying parts, open it up inside a box that may catch a flying spring. I suppose I should mention these switches could be out of adjustment. I've never had one with that problem that didn't need the switch rebuilt. An adjustment may make it work for a short while, but usually not for long. Tony I just remembered the leaf switches back behind the turntable, they can also cause similar problems. Tony |
#4
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AMI MODEL B
In article
, wayne wrote: Hi, i have a ami model b, which will not reject, the mech got stuck, i freed it up, and now the micro switch will not reject the record, nor will the reject button on the back of the machine work, i have a manual, but no help in the trouble shooting section on this prob, Any suggestions would be apprectiated, thanks Check to make sure the motor isn't physically stuck - spin the armature a few turns in the reject direction, to make sure. The other thing is, the reversing relay may not be picking up. You can't get a reject without it. Either it's not getting power or it's messed up somehow. I'd look for a jammed motor, followed by checking that CS2 is closed, then see if the reversing relay's picking up, then check the contacts on it (they can be taken apart and cleaned up nicely, IIRC). Power flows through the cam switch CS2, and that switch has to be closed to for the relay pickup and reverse. The record rack switches could be bad, too. If the normally closed pair isn't, you won't get reverse. If the record rack works, then you can likely rule out the rack switches for now. If the selection finger resets automatically, then CS2 is ok, and it's the reversing relay. In short: * If the rack moves by itself, then the rack switches are probably ok. * If the selection finger resets itself, then CS2 is probably ok. * If both of the above are true, then the reversing relay isn't picking up or had dirty or out of adjustment contacts. You can rebuild the switches. Have fun trying to find replacements - anyone know a source of _new_ ones? |
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