@febrice These are the BLU and WHT wires you said if you disconnect either of them you lose sound on both channels ?
Indeed all WM-150 use this type of motor. This particular unit is different than others using this mech. I was so used to the WM-150 type...
@djsubtronic What you show here is not a brushless 3 phase disc motor, but a DC motor. Opening it is completely different and more risky than the...
Do have a certain bias towards analog solutions myself, although there's nothing inherently wrong with a digital approach either. In my view...
One thing I want to add: the belts from Russell Industries are one of the best you can get. But of course the diameter has to be right: you have...
Good that you posted the video, as now I realise your initial assesment was correct. Problem is caused by a black lever from the auto-stop...
Check if the lever with lighter spring is fully coming back to resting position, that's what matters. Also if after making the lever slide...
Mechanical auto-stop isn't supposed to trigger in FF and REW, but only in PLAY. In FF/REW only electronic auto-off should work: motor stops 5...
@Hn14197 Ok, I made a mistake regarding LeKos schematic: it's only the Chinese that has the mentioned problem. Edited my post to correct it. But I...
One thing that catches my attention is how this circuit is powered: it's using the +11.2V rail from the DC-DC convertor and regulate it down to...
While there are some things that have to be taken into consideration when designing a digital control loop, the proposed design adresses all of...
Really depends what reference you take in regard to W&F. If you take the absolute best players and say 0.1% WRMS is what's considered good, then...
W&F is acceptable at 0.08% although not great for this unit. Apart from replacing the capstan ring, sanding the motor spindle and adjusting the...
Springs you can find on Aliexpress, but you need to know the dimensions: length, diameter and wire diameter. Ones sold specifically for the eject...
The values look ok for both FWD and REV, these I would consider within spec. Speed difference is also well within the acceptable range at 12Hz....
Sounds very good, I think what you stated is an excellent starting point. If you don't mind, when done please share the project with the community...
There are many possibilities of implementing this, including a digital control loop with microcontroller. With this approach there are some...
You can go directly with 2000 grit yes, but if you're not getting the right result you may need to use 800-1000 grit first. Keep in mind unless...
There is also a Chinese board available, but you need to remove quite a few components from the board to install it. It's available here, you...
W&F is indeed high on REV side (especially flutter). FWD seems ok. Would check the RMS value (DIN in WFGUI). It is possible to sand the capstan...
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