D701 is a 7.5V zener diode, used as a voltage reference in the DC-DC converter circuit. However thid DC-DC only powers the PLL, so it's easy to...
These older units almost always use the 13 x 8 x 2mm for the pinch roller: https://fixyouraudio.com/product/pinch-roller-13x8x2mm/ C clips are...
Regarding rubber tires, getting these from a donor unit is not a good idea as it will have similar age and rubber will be degraded to a similar...
No, I suggest removing the solder bridge not the IC (hence why stating "PLL bridge"). Pin 9 should only reach 0.7-0.8V when the motor stops (no...
You need to adjust the center gear arm height in this case. This is a common problem, that's why walkman needs to be tested upside down also...
First thing I would check is what happens at pin 4 of IC5. This should stay high (3V) and be pulled low (0V) briefly only when STOP is triggered....
First thing to note is the 3V specified in the manual is with alkaline batteries, with NiMH that voltage will be a bit lower (2 x 1.2V = 2.4V)....
For WM-100/200/500 series you will need the ones at 8.34$ that has the hub sleeve only on one side not on both. The other can be modified to fit...
@Impala67 It's not the amorphous head that makes the difference, but the tape path alignment and level + bias adjustments (latter only if the tape...
Given everything works ok with the remote, the problem can't be mechanical (meaning related to mechanism). However it is possible there's too...
@Neko Prince Regarding the commutator, using a cotton swab soaked in contact cleaner or IPA is enough to clean it. For lubrication, you need...
Yes that is the intended design. Lever controlling S701 shouldn't slip when the PCB is fully pressed down. Make sure the tip of that switch is...
Can't remember for sure (didn't disassemble this reel recently), but from memory I would say it can't be pushed from the back. Don't have any...
No, the clutch disc (the part with brass "retainer") has a shaft that is pressed into the reel. Pulling the reel is the way to go, otherwise...
Yes, it will be 3 parts: the lower part of the clutch, the reel, the reel table and the spring. 4 if we consider the spring as a different part....
Indeed the method of installing is not the easiest, but would be interesting to know how the gear works. Regarding removal of clutch, the 2...
Want to make sure I understood the problem correctly. The unit does not play FWD, only REV ? And W&F is high ? Does the unit switch FWD/REV by...
Note the clutch can be disassembled from the reel easily and re-installed after the reel assy has been soaked. In my opinion it's worth trying to...
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