That's very interesting working upside down and its the clue that needs to be investigated. Wonder if it's something mechanical or the tape path...
In theory you could use the 3kHz, but this tape has 2 problems: frequency is a bit low and also it's not a full-track. In practice it's probably...
Simplest way to replace the roller is to just push the pins put without removing the carriage. However wouldn't recommend that. Otherwise you do...
Trimpot shouldn't need to be maxed out to obtain recorded levels at least close to the source. The important thing to determine is if this...
Normally the solder shouldn't need to run through to the other side to make a connection, assuming the hole is copper plated. In your case it's...
I suspect not being the head either, since it works fine on playback. The polishing recommendation made because it's something that, in my...
Table reels are not perfectly round (they have some up/down wobble at the edges), that is visible when you look at the metal part from the...
Fact that R channel sometimes also goes quiet does suggest a connection problem. You would need an oscilloscope or at least a multimeter than can...
The crackling you hear is likely related to a dirty REC/PB switch (which could be related to your problem), not to capacitors. Generally...
What is the problem with your motor ? Can't it be restored ? There is a thread about these coreless motors:...
The 2 heads in the links look almost identical to each other and by the looks of it almost identical to the one in your boombox. So chances are...
DC-DC converter only powers the Dolby circuits, so even if that's fried (which I doubt) it wouldn't explain the symptoms. Most likely it's...
Would start with polishing that head, it's really rusty. Fact you get stronger singal on chrome/metal bias suggests either the bias is too low...
If the W&F doesn't change it's good. Fact speed changes is likely from the extra drag, but would ignore it for the time being. As far as test...
Wouldn't jump on replacing the rollers peemptively, as not all new rollers are same quality as the original ones. Clean them well though. Ideally...
Fact once you press FF/REW, the other commands no longer work suggest the logic control side does register that command. Buttons being both...
The head does appear to have some wear (there is a visible groove) and also some surface rust/corrosion. The surface rust/corrosion could affect...
Assuming the Kenwood KX7030 deck has the tape path alignment right, your WM-EX512 likely has a tape path alignment problem. However the KX7030...
So you have 2 different problems: lack of torque on FF and PLAY and also high W&F when takeup is full ? Not sure what you meant by flywheel is...
If by FW you're reffering to Fast Forward, I would clean the lever mentioned here:...
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