No, I don't think it's the preamp either, listed that just because it's part of the signal chain. You have to investigate the tape path more in...
Indeed the roller seems mostly parallel to the capstan, there is a very slight misalignment, but it's small enough that I won't bother to adjust...
How have you established that ? Have you removed the door ? It's impossible to say without removing the door first. However I advice to be...
Just realised I misread your previous post and you stated the regulator was outputting 8.64V. Worth trying to replace the regulator anyway, I...
There is a difference because of the stereo potentiometer which adds a little bit of imbalance, but as we can see it's pretty low at just below...
You are reffering to IC802 ? That's a 5V voltage regulator, not a transistor. The fact you have 9.13V at the DC in jack but only 8.63V at the...
What I recommend doing before adjusting is take a measurement of the resistance between the cursor of the trimpot and one end. This way it can be...
Please post some pictures with inside of the unit, that way we may be able to help you more.
Hello and welcome to the forum ! The problem you have is most likely related to a tape curling at the pinch roller problem. Due to some...
Have to say I'm puzzled by the situation. The measurements look absolutely perfect, confirmed by the recorded files. Only logical conclusion I can...
For the fast forwarding issue, the problem may be a cracked gear on the mechanism. However I will need to actually see the unit to confirm this....
The voltages of the DC-DC converter are labeled on the PCB silkscreen as far as I remember, at least in some versions. For a clear reference, go...
I think it's a good idea to make recordings of the tape itself in both units, curious of the result. Also, try to see if setting the EQ to 120us...
Ok, what I can say is typically when I adjust these WM-D3s (and it's pretty typical to SONY ones in general) the right channel trimpot needs to be...
Please note the D-50 has 2 different switches that need to be closed: an open/close switch (S902) and a laser on switch (S901). If S901 is not...
I wanted to ask exactly that before my previous message, but after reading you used a pair of wireless headphones I assumed the mics are in the...
Hello and welcome to the forum ! There are a few people who can help here on the forum, including myself. What has been done on the walkman...
Hello and welcome to the forum ! You need to give us more information about the unit: - is there any noise present when it plays a cassete ? -...
When I initially looked at the diagrams realised there are quite a few parts that are not actually shown, so the diagrams are "block diagrams"...
Thanks for clarifying, @euroflash ! I agree indeed that using a full track tape for adjusting azimuth is to be preffered for the reasons you...
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