The travel back problem can be caused by a missing spring on the PLAY button, it's something I've seen on some D6Cs. Spring either missing or not...
105-108mA I would consider within spec, which further tends to confirm something I suspected from the beginning: you likely have a faulty CX20084...
You need to investigate that area in this case. The IR photodetector, IR LED or something else in the circuit is not working.
Measure the DC voltage at motor terminals with and without load (with cassette/without). For more load you can stop the takeup reel by hand. If...
If you have the means to check, see if you have the reel rotation pulses at pin 9 if microcontroller. Without that, you will have those symptoms...
The door lid switch can be easily eliminated by shorting it with a wire, so it's always in the closed position. If you don't have a proper...
There shouldn't be continuity between the positive rail (B+) and ground. Would desolder the flex on the other end and check continuity on the...
Not in the motor, in C604. Remove C604 from circuit to see if it fixes the problem. If it does, replace the capacitor with a new one.
C604 is on the main B+ rail and is not critical for circuit operation as far as speed is concerned. Only sitation where it could cause this...
I understand. Didn't say electronics should be ruled out, rather not assumed it's the culprit without doing some tests. In my opinion, you first...
Doesn't matter if you use a 3000Hz or 3150Hz tape, both WFGUI and Nak T-100 support both standards. This was probably more relevant back in the...
First thing that should be checked is if you can engage the functions by rotating the mechanism by hand and actuating the solenoid by hand ?...
@Dauner Do you have a W&F measurement ? Would be interesting to see a figure. Also, why are you assuming it's an electronic fault ? I would also...
If you're not confident in disassemblying the player, maybe it's best to skip the lubrication part entirely. While this is not difficult for...
In regard to step 14, you can see in picture 17 there are 4 gears on each side + the tabel reel (which has integrated clutches). Note it's the...
Which one sounds better will have some degree of subjectivity, but in my opinion some objective statements can be made: 1. If there is a...
The difference between cassette in and without cassette current draw is too high. You should see ~18% increase with cassette in. What you have is...
Two part epoxy resin is too thick for these repairs in my opinion. Cyanoacrylate glue works just fine if the surfaces are roughened before. The...
Cyanoacrylate super-glue is what I used to glue the gear to the shaft. Roughening the metal surface with 800 grit sandpaper is a good idea to...
When the speed drops, the LED also gets dimmer ?
Separate names with a comma.
