You won't need a picture with the original idler. Mihokm is a member of this forum and his parts are very high quality and identical in shape to...
Very good point Longman ! Indeed FPGAs are not suitable for this kind of application. If one wants to build logic control to a walkman, it can be...
Hi, From what I can see in the video, the takeup reel does not turn when in play, hence the autostop mechanism engages and stops the unit. What...
I'll read it for sure, there's a lot of information in there. I did not know about it. It makes a lot more sense now: I just searched for...
[ATTACH] [ATTACH] @Mister X I did the restoration process on both, actually. I think I forgot to mention that. None of them worked initially, the...
I had no idea either, the seller sent me a different unit than the one in the pictures, but in the end I was happier with having 2 different ones....
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Ok, I understand now. From what you say, it seems that the servo IC is the problem unfortunately. In which case buying a donor board or donor unit...
Maybe you do need to take the assembly out. From what the guide was showing to bend it with a small screwdriver, it seemed that it could be done...
The emitter should be battery voltage, which is 3.2V in your case. If the base voltage is 1.8-2.2V, then Ve-Vb=1-1.4V (which is Veb), whcih is...
[ATTACH] Clearly something is not right: the drop across the transistor EB junction should be between 0.6-0.8V. Did the transistor check ok with...
I would check the voltages at Q607 first: 3V on the emitter, 2.4V on the base. What is the voltage on the base of the drive transistor ?
By the looks of it, the part marked purple is the one that needs to be bent upwards. You do not need to take the center gear out to do this. Bend...
Hi, From what I see in the video it seems that the arm of the gear must be bent. Do not bend the shaft of the center gear (that is stated in the...
I did take the motor out of the bracket for bending. You need to remove 2 screws (one is the adjustment screw I wrote about) and 2 small springs...
Something I forgot to mention: that bracket only needs to be bent enough to be straight (it can be seen that now it's bent outwards) to get the...
Hello ML4949, I did encounter this problem on my WM-D3, when replacing the center gear. I don't know if it's some manufacturing problem or it has...
It's not that it can be bypaseed by a trimmer, the trimmer is already there (RV601 on schematic). It's just that as long as the PLL output ON/OFF...
Glad you are making progress ! Hope that it will work without replacing anything. IC602 is not critical as it can be bypassed if not working...
This is clearly realted to your symptom. What intrigued me is the similarity between this servo circuit (using CXA1423N IC) and the DD3 and D6C...
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