This mechanism looks very similar to the SONY WA-8000 which I've restored before. Would check for any stuck gears due to old grease, but even...
National RQ-JA100/RX-SA200 Both units are the same, SA200 having an AM/FM/TV radio integrated into the door. Some very particular aspects of...
Does that white gear rotate ? When mechanism switches from FWD to REV that gear need to rotate one full cycle of 360°. To be noted that green...
Autoreverse on these models (WM-100, 200, 500 series) is electronically controlled. The external button presses on a leaf switch (S702), which is...
Without a datasheet can't tell. Apart from inductance, DC resistance (which should be low to not affect audio output impedance) and self-resonance...
Those are L103, L104 and L105. The circled one seems to be L105, the one connecting 3.5mm jack's ground to the circuit ground. Those 1μH...
For the screw, ask user tomtom87 in a private message. Chances are he has it and will be cheaper than buying a donor. Kit fro FixYourAudio has...
There is a service manual available on Elektrotanya for this device: https://elektrotanya.com/sony_tcm-4040_cassette-corder.pdf/download.html...
Clutch does need some grease on the middle, where there's friction between it and the middle plastic hub. If you want a small drop of oil can...
Marked the clutch on the attached picture. However can't know if this is actually the problem. If you don't have a good feel of what a normal...
Tape guide, if the lock paint is original leave alone. Tape guide is fixed, not related to the head bridge and not the cause of your problem. In...
Fact roller is wobbly can indicate the roller itself is eccentric. While this will affect the W&F, it's probably not the cause of your problem....
Most are around 30 AWG, but some walkmans use more than 1 gauage (like thicker for power lines). But there's another factor: how thick is the...
The playing too fast is likely caused by a mechanical problem, not by motor running too fast, hence why adjusting the speed doesn't solve the...
There are some pictures with the camgears here: https://stereo2go.com/forums/threads/sony-dd9-cracked-gear-help.7231/#post-55496 Also attached a...
Remember your post from 2021. The unfortunate part is that cracked camgear, not aware of anyone having it made in the meantime. Big issue is...
Looking at the schematic, it's obvious the entire motor servo circuit is inside the motor apart from R307, R308 adn RV301. Most likely problem is...
No need to mention me and say Hi at every post. Keep in mind this is a public forum, not a discussion between you and me. Also no need to quote...
Assuming they're installed correctly can only assume the caps themselves are faulty based on the information provided so far. You can check with a...
The LED is voltage reference for the DC-DC converter. To eliminate tape detct swtich as a potential culprit, you need to make S903 - 1 permanently...
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