This tutorial covers the adjustment of middle pulley in WM-10/20/30/WM-W800 mechanism. In these mechanisms the middle pulley sits at an angle when...
SX1V is a newer generation without the pad lifter and associated problems (too high roller pressure). While the newer AR90 IV mechanism is more...
This WM-100/200 series mechanism is a bit unique regarding the pinch roller engagement: there are 2 pins for each roller. When mechanism is...
Your rewind problem is not mechanical, it's the auto-off circuit that shuts the motor off. Things to check are voltages around Q308, 309, 310....
The mechanical noise is typical of this mechanism, those loud bangs are the solenoids engaging and that's the typical sound even when it works....
Stated before the motor and caps are a known issue on this model. The caps need to be replaced, see the link in post #19 for details. While they...
@Timo The microcontroller needs to initialize (engage FWD, REV, STOP) before any input from the buttons will work. What happens when battery is...
What happens if you remove R305 from the circuit ? What about the power LED, does it remain on even after 1 press ?
I agree with @novrain2012 that it's more likely problem is caused by a cracked trace or open via rather than faulty transistors. Would add it's...
Left VU-meter acts as battery level check (see the green marking), that's why only the left needle moves.
This only happens when powered via DC in jack, not with batteries ? That 320mA current draw being exactly the same when on and off, but nothing...
The strobe gear is used for reel rotation detection only. In some decks (which have such sensors on both reels) it can also be used to determine...
Given the signal from the radio goes through S301 (radio/tape switch) into volume potentiometer, it's obviuous everything past this point (volume...
That sensor CB with photo detector was replaced together with main PCB ? An autoreverse loop is tied to the reel sensor signal, either the sensor...
Glad you found the thread useful ! Regarding the spring that pulls the head bridge up, indeed that's not fitted on all DDs. DD33 in particular...
Assuming the gears turn freely (not clear if you cleaned that middler gear), the problem is in the electronics. Sled motor is very unlikely to...
Fact CD is spinning up and down only tells that player is unable to read ToC. However that can have more than 1 cause (too much play in spindle...
Note you need to actually remove that gear and clean the old lubricant from both shaft and gear hole. Second aspect is D-Z555 have problems with...
Both reels spinning after the adjustment means the center disc has excessive up/down wobble. The original gear assembly (center hub, disc, gear)...
All capacitors laid on one side need to be replaced, this type goes bad all time. These can be replaced with SMD tantlums which will fit nicely....
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