It is perfectly normal for the noise floor to change, as the Dolby NR will also lower the noise of the amplifiers. The amplifiers themselves have...
In theory you may be ok using the original one. In practice the original one will output a much higher voltage with no load. And this is important...
For reference I am attaching 2 pictures with the 2 capacitors that need to be replaced in case unit was powered with reversed polarity. I also...
Ok, you have the SMD board so you can forget about the hybrid modules as you don't have them (they're built with discrete transistors directly on...
You say your D6C is a later one: is it the one with SMD PCB or the one with through hole PCB ? The ones with through hole PCB (which are the vast...
Clearly replace the roller, as it's readily available at https://fixyouraudio.com/product/sony-wm-d6c-pinch-roller/ and the price is peanuts...
You need to check the PCB throroughly and see why there is continuity between those 2 point, because it shouldn't be like that. Tape speed very...
Ok, so let's take it one step at a time. The entire circuit is ground switched: the 3V is constantly connected, while the leaf switches connect or...
Yes indeed it is correct, the 2 switches are the other way around. You need to start diagnosing one thing at a time. Start by desoldering the...
That leaf switch in your picture should be engaged in PLAY mode and disengaged when in STOP. There should be another leaf switch near the pivot...
Capacitors are not going to cause such a problem, even if they were to be bad (which I don't believe they are). The first thing I would check is...
The first problem I notice is you don't have the slider installed. That black lever beneath the main gear needs to be installed in the recess of...
@gkajaia I listened to your recording and indeed it does seem that the azimuth is changing during playback, possible due to a bad pinch roller....
From what I have seen myself and also talking to people who repaired these on a regular basis, came to the conclusion this lubricant issue is in...
Don't just pour IPA onto the head drum as there is a risk it can get into the bearing. Would not use compressed air either, the head chips are...
I suggest measuring the tires' dimensions and search them that way. You can find tires here: https://fixyouraudio.com/#shop_now, on ebay or...
I agree with @TooCooL4 ! Personally would never put a tape in such a unit before servicing it because it will get contaminated, contamination...
My opinion about these walkmans (being them DDs, WM-2, WM-5) is one really needs to fully disassemble the mechanism, clean it, re-lubricate and...
You should be able to make at least one working unit from all the 3 that you have, possibly even 2 of them. Main issue with this unit is...
I want to add some information: this unit (as most devices made in Japan at the time) has a center negative plug (contrary to some statement...
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