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Post by daiclub on Feb 17, 2021 20:53:21 GMT
Hi guys , you were really helpful with my problem last year,I have a differant problem now, the record doesn't turn straight away when selected, the needle sits on the record ready to play but record doesn't spin at first, sometimes its a couple of minutes before it starts. The following records work ok its just starting the first one. Any ideas Thanks very much Dai.
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Post by jukenorman on Feb 17, 2021 21:27:18 GMT
Hi David,
I would suspect lack of lubrication, either the pivot on the spring loaded mechanism that enables the turntable motor to contact the tyre on the turntable or maybe the turntable itself is sticky. Or possibly a combination of both. There is a sticky on lubrication to refer to.
Norman.
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Post by daiclub on Feb 19, 2021 19:54:09 GMT
Thanks Norman , where do i find the sticky please.
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Post by jukenorman on Feb 19, 2021 21:01:41 GMT
Lubrication sticky in the FAQs in the General section!
Norman.
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Post by daiclub on Feb 24, 2021 22:25:11 GMT
Thanks i will have a look and see if i can find which parts to lubricate Cheers Dai
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Post by daiclub on Mar 1, 2021 20:15:42 GMT
Lubrication sticky in the FAQs in the General section! Norman. Hi Norman i have lubricated the areas i could see in the manual. It is worse now than before, the neddle just stays on the record which dosent spin. After about 5 minutes a buzzing sound goes off and the record returns to the rack. Could it need reprogramming do you think? Thanks Dai. |
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Post by jukenorman on Mar 2, 2021 9:25:52 GMT
Hi David,
From your original description, it very much sounded like a lubrication problem!
With the stylus on the record, is the turntable motor running? If the motor isn't running, is the drive spindle contacting the turntable tyre? If it is and you gently pull the motor away (it is spring loaded) from the tyre, does the motor run?
On an NSM, when the record is transferred to the play position, the mechanism motor simply stops, When the record has finished, the mech motor is started again to return the record to the rack. There should be no buzzing - can you identify the source? Might there be something partially jamming the mechanism, a broken piece of record for example?
Norman.
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Post by daiclub on Mar 2, 2021 22:32:59 GMT
Thanks Norman, i will try this out tomorrow and let you know, can you post short videos off the problem on this site do you know. Cheers David.
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Post by jukenorman on Mar 3, 2021 9:38:53 GMT
You need to post the video elswhere and post a link here.
Norman.
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Post by daiclub on Mar 3, 2021 21:15:18 GMT
Ok Norman thank you very much.
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Post by Hildegard on Mar 8, 2021 18:04:57 GMT
Maybe I missed the information: I am just wondering which model Prestige it is exactly. A Prestige can have been built somwhen between 1969 and 1989.
Didn't the first ones only had one motor for all - scanning, loading, playing, returning and scanning again? For these models the voltage of the motor gets reduced to 80V (without having looked into the schematic) when the turntable shall spin.
Hildegard
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Post by jukenorman on Mar 8, 2021 19:33:31 GMT
Hi Hildegard,
You are correct, it is always helpful to post the exact model number. If I remember correctly we had to go through that when he posted his previous query and it's a Prestige ES.
Norman.
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Post by Ron Rich on Mar 8, 2021 19:40:45 GMT
HI All,
It is required, information, if a person wants a correct response ! Please read the "HI Newbies" post in the FAQ's section--- Ron Rich
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Post by Hildegard on Mar 9, 2021 14:35:47 GMT
Thank you Norman. I checked if our German archive lists such a problem for ES models. I found one entry. It confirms also the emchanical problem. ----- It could be that there is a problem with/in the clutch and camshaft. If both are gummed up so they only can move mechanically poorly, cleaning should remedy the problem. It also happens that the clutch breaks. The arm that presses the drive motor for the turntable against the roller could also be gummed up. Then the motor runs empty. The problem could also be related to the mode switch. An exerpt from from the service manual (basically): "This is opened, causing the motor relay to drop out and the amplifier's mute circuit to be off. The drive motor is switched off by the contacts mo 1 and mo2 of the motor relay and is connected to a DC voltage via the transistor T206 with both windings. Thus it is braked. Elko C216 has been charged in the meantime, so that negative voltage is applied to T 207. When electrolytic capacitor C216 is discharged, this voltage drops and via R233 and C215 the voltage at base T208 also drops. This opens, and discharges the residual charge from C216. When C216 no longer supplies voltage, T206 and T207 are blocked. Thus after approx. 1 - 1.5 sec. the braking process is finished." Translated with help of www.DeepL.com/Translator (free version) --------- Hildegard |
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Post by daiclub on Mar 11, 2021 19:21:14 GMT
I am sorry i did not put the model number with my question, as it was a follow on from before i assumed that i had done it previously so i apologise. It is a Nsm Prestige ES160.The current status is that the record comes out and the needle stays on the record for a few minutes then the record plays slowly dragging. The next record will play after about 30 sconds of the neddle touching the record but after about a minute in the record then plays fine. Every record after plays without any problem. So the problem seems to be something to do with the starting process. I have checked and there is no visable debris . Thank you very much for your help so far, David.
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