I've never understood that weird pin out of the DC connector: the rest of the world uses the centre pin as + and the outer ring as - or ground....
The DD1 does not have the central gear; despite the name, besides the Disc Drive capstan it has very little else in common with the standard DD...
Thanks for all the info, I actually lost the auction for a red DD1 and I have to wait for another one to appear. I'm familiar with the DD family,...
Looks like more than one wire is out of place, black should not be soldered there and red goes together with orange. [ATTACH]
I'm looking to buy a WM-DD1, I somehow like its look and the fact that it is a sort of underdog in the DD family. I know it does not have the...
Having borrowed an oscilloscope to do other tests I also took the opportunity to fine tune the head azimuth of my walkman's. First I started...
I was able to borrow an oscilloscope from work (it appears to be 20 years old, but it will do the job) and did some tests to see where the audio...
Back in the days (90's mostly) I was a TDK monomaniac, I've never bought any other tape brand. Nowadays I'm having all sorts of problems with TDK...
I guess the tape transport is not too different from the RQ-S20 I bought in mid 90's. After ~15 years the belt had turned to goo and needed a...
I tried the "screwdriver" technique, but it proved to be inconclusive. Referring to the below schematics: [ATTACH] The expected behaviour should...
Thanks for the suggestions, but unfortunately I do not have an oscilloscope; some years ago I could "borrow" one from work for the weekend but now...
Electrolytic capacitors are my first bet too (or wishful thinking, capacitor are easier to find compared to IC's) [ATTACH] but I cannot find a...
I recently acquired a boxed WM-3 and i'm fixing it to be back to its original splendour. Beside easy fixable mechanical problems (needs new belts...
I had no intention of implying anything wrong, once you open-up a Dd it's easy to find other cracked gears especially in the older ones and that...
Recently there is on ebay an offer for central gear repair service : for 50$ + shipping you get a basic DD service + central gear fixing. An offer...
I fixed the DDIII too, but instead of prying out the lever I just added a bit of tape under the rew button actuator. Not very professional, but...
On the other hand if the price is too high, current situation will not change much and on top of a DD walkman price you also have the cost of...
[off topic] I'm surprised you sold so many speed test tapes... they are pretty easy to home made and also absolute speed is not that important on...
I found out my DDIII has issue with rewind, the reel gear does not properly engages and it slippers. Not that i use FFW or REW in a walkman, but...
Fixing the FFW and REW is a bit of a pain in the neck: the centre gear is moved up or down to two different positions to get FFW and REW engaged,...
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