Won't say it's THAT risky to not use it at all in that scenario, but it's certainly prefferable to use a dedicated charger. Something like the...
Don't know what the exact reason was to state in the manual to only use SONY branded recharghables. One possibility I see is that it was in the...
Seen this design before, bearing can be lubricated through those holes. Ideally the motor should be kept with holes up when oil is inserted so...
That's very good news if the motor can be lubricated that way, even if it applies just to one specific generation. Regarding the pictures,...
The CR-2a has the same limitation as the Yamaha, only an external bias adjustment. You have 2 options if you want properly recorded Dolby tapes:...
The Yamaha KX-630 only has a coarse bias adjustment, not a full calibration (level + bias). So right from the start this deck will only render...
The rule of thumb is the voltage rating should ideally be 2x the operating voltage. In case of the WM-30, the output coupling ones (C401, C402)...
SMD tantalums is pretty much the only viable replacement, as those long thin electrolytics are no longer made. Have been using SMD tantalums in...
Hard to say as I don't know what equipment you have. But generally speaking the tapes need to be recorded on a deck that's capable to calibrate...
Yes, I would add even more so if it sounds good with Dolby (on a known-good Dolby-encoded tape) that's the definitive test. Such walkmans won't...
If it sounds good by ear I would leave it alone. Fact the L and R are not perfectly in phase on the scope doesn't necessarily mean there's a...
Azimuth is slightly off on one side or both ? Suggest reading this thread:...
Seen this symptom in other walkmans using DC motors and it was caused by a dry bottom bearing. Unfortunate part is in such designs there are only...
Unlikely that is related to the problem, since even an increased resistance at that point will render a voltage drop on the wire (but only under...
Hello and welcome to the forum @VFET747 ! I would consider alternative fixes to finding a CX20084, there are quite a few: - the Chinese module...
Yes it's normal that all rails go down to battery voltage when the converter is off, because the oscillation stops and you get the DC voltage...
Shorting 2 pins of the IC accidentaly shouldn't cause a problem. Regarding the DC-DC, you can force the DD-CTL pin LOW by connecting it to GND...
Not clear what you tried to do by shorting CT D to VSS. You're reffering to pin 7 (D CTL) ? As a general rule of thumb, you shouldn't short pins...
Indeed this fault may or may not be related to the capacitor replacement itself. However if these caps were leaky, it is possible that traces or...
There's no reason to have reservations about the chemical etching, in a worst case scenario it will simply do nothing. Outcome which I would say...
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