@as_audio
I think that I confused you by showing premotec motor. It was shown because I could not bother taking clear photo so copy motor image from internet and indicate how motor is wired with my comment since both Premotec and Allied are same exact type number and specs. Red and Blue on left and right and two taps on the middle are grey.
Original Rega motor was thrown away many years ago and I kept the plinth and the rest parts stored away and just took them out and trying to put new motor to make it work.
The cap is brand new one purchased from local electronic store earlier this week.
I tried briefly with 0.22uf cap that I also have but it is doing same thing.
I think that I confused you by showing premotec motor. It was shown because I could not bother taking clear photo so copy motor image from internet and indicate how motor is wired with my comment since both Premotec and Allied are same exact type number and specs. Red and Blue on left and right and two taps on the middle are grey.
Original Rega motor was thrown away many years ago and I kept the plinth and the rest parts stored away and just took them out and trying to put new motor to make it work.
The cap is brand new one purchased from local electronic store earlier this week.
I tried briefly with 0.22uf cap that I also have but it is doing same thing.
The spec of the motor says,
- Working torque of coils connected in parallel 2.0Ncm
@stoolpigeon Thank you for the suggestion. I just checked and it does not touch the platter. There is about 3mm gap between top of pulley and bottom of platter.
Hi David.
After detaching everything from the motor, here are the measurement of resistance.
Red-Grey : 10Kohm
Blue-Grey: O.L
Red-Blue: O.L
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This means that there is a 4th terminal somewhere.
You have found the Red - grey winding but only one end of the Blue - grey
The datasheet shows 4 terminals
1, 2, 1' & 2'
Can you take a photo of your motor from the terminal side
The two are not connected together internally. You have to treat them as 1' and 2' in the datasheet and link them and connect to the Neutral side.
The 1st photo had the capacitor bridged too. The datasheet is misleading, not showing the connections properly
First picture shows poor soldering, but for me it seems the
grey wire is not connected to the right side of the cap also,
only to the left. But it is hard to see.
grey wire is not connected to the right side of the cap also,
only to the left. But it is hard to see.
Yep. two grey taps are sitting vertically and when I solder with main AC wire, I put them together so the wire connected both grey taps.
It shouldn't. If you separate them, each is supposed to be a resistance to one and only one other tag.
Please separate them and check for which tags have a resistance between them, including what you assume are the two grey.
You should end up with two pairs of tags connected by the two windings
Please separate them and check for which tags have a resistance between them, including what you assume are the two grey.
You should end up with two pairs of tags connected by the two windings
@davidsrsb Thank you. Have I understood correctly that I need to separate two middle tags? if it is separated, then where should I attach one end of AC Main wire to? I thought that it should attach to grey tap. Do I measure resistence between Red to one of two middle tap and Blue to one of two middle tap and find which one of two has resistence to both Red and Blue Tap and use the tap as grey tap?
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Just removed connection between two middle taps so middle taps are separated and nothing is attached to any of motor taps.
Here are measured resistences;
Red to top middle tap : OL
Red to bottom middle tap: 10Kohm
Blue to top middle tap: OL
Blue to bottom middle tap: OL
Red to Blue Tap: OL