Does ne1 know where to find free schematic diagrams for stereo components?
I have an old ELAC miracord 760 turntable, the mechanisms for on/off arent working. I'm not sure how they are spose to look, but one of them looks bent.
Is there a place where I can see the diagram of these mechanisms online for free? I really cant be bothered to pay for a sheet of paper for a record player.
Thanks!!!
thanks
I dont see any pulley type mechanism. ive tried to get a feel for how these items are suppose to work but I don't get it. It's not a big deal, theres always the plug. lol
im not rele sure about how the auto run is spose to work either, or how to engage it. Oh well. lol
Yep you are right... it is the idler wheel thing... i dont see the pulley so it must be in there where i cant see it. This thing is crazy, I look at it for hours and I don't understand how all the metal pieces are spose to link up. Even more baffling to me is how the mechanism only engages when the platter is on, but the platter has no locking mechanism, its just dead weight!! It's like black magic lol.
One of the pieces in this gadgetry was definitely out of place because it was rubbing against the silver rim and making noise/drag. I am taking a picture and will post you the link for it, maybe you can determine whats wrong? lol. that would be awesome. also I'll take a pic at where the cartridge is spose to be, its all missing so can you telll me whats missing? this is fun, you are very helpful lol! oh yeh and by the way, the motor seems fine, even the 78rpm spins at the correct speed when adjusted on the pitch control.
OH yeh and one more thing.. the platter is stamped "9 Jan. 1974"
My goodness - they are old from the 70s or so. I used to work on those. I can’t help you over long distance…. You need a turntable stand where to clamp it in and then turn it upside down or vertical to have a look at the working mechanism. If you don’t have the expertise or "sixth sense" how things work there - you may be out of luck. It is probably one that has an idler wheel which drives the platter. make sure that… the robber has enough grip to NOT slip on the motor pulley. If it does - the TT will not shut off.
Take sandpaper and sand down the surface of the rubber pulley to give it traction again the polished motor pulley. To remove the platter in order to get to the motor and rubber idler wheel - you have to remove the steel clip in the middle where the spindle is…..
Good luck
It has been a very long time….. there is/was more than one model. I don’t think belt driven TT were out then in the early 70s - if it is that old. Direct drive TT came out after the belt driven ones. If it is not belt driven, then it has to have a rubber idler wheel that connects between the motor pulley and the inner rim of the platter underneath if you take the platter of. It is on a spring to always make positive contact. I remember it was one of the most difficult to fix due to the complexity of the mechanism - if it is that one you may have.
Anyway - If you are in need of a good TT, just go on eBay. There is a good chance you find them there cheaply..
Addendum…..
I see you are enjoying your TT
The rubber idler wheel is pressured against the motor pulley and the inner rim of the platter by a spring attached to the chassis I think. You ask how all the mechanism starts? If you look at the inside/center of the platter where the spindle goes through, there should be a cast gear there and a peg more to the outside of it. The platter gear drives the mechanism by engaging the big camwheel with all the grooves and the pegs with levers in there for the cycling. That one is on the chassis underneath.
The other pin underneath the platter is the shut-off pin that activates a lever which slowly moves into position to be pushed when the record comes to the end - that is….. when the tonearm moves it there to be engaged. That action also engages the camwheel to lift up the tone arm and moves it to the rest post…… and then shuts the TT off.
All hinges on good friction of the idler wheel between the motor pulley and the inner ring of the platter. Sand it nicely and clean it with rubbing alcohol. The rubber HAS TO BE PLIABLE and not hard like concrete!!! If the idler wheel slips - the TT will not start or starts VERY sluggishly.
Just email me with the photos: laidbackartist AT yahoo DOT com