What do you suppose is the maximum height for replacement capacitors on the WM-D6C?
There is a tutorial somewhere on this forum by Valentin that deals with this very issue. The idler wheel gets gummed up by hardened old grease and...
@bub: I'm not at all offended by your list; the 4volt caps just seemed wrong to me. Then I realized that not ALL walkmans have a 6-volt rail like...
Yes. There's a LOT to be said for the old adage: "If it WORKS, don't FIX it!!!!!!"
Thanks for the link to the color service manual; it does indeed show those pink traces but also the voltages on the schematic are MUCH easier to...
@Valentin: Thanks! Your expert help is much appreciated!! I note that your screen shot of the PCB shows (in pink) the traces on side 2 of the PCB....
"For all rotating parts' shafts I use watch oil, including the FF/REW idler arm." Thanks, but in searching for 'watch oil', I get a bewildering...
Yes, you are correct that reverse voltage from an external power supply is MUCH more likely than reverse battery installation. But, if I could...
Thanks, I'll check it out. Now, where is the best place to locate the 1N5818 Schottky diode for reverse voltage protection? It would seem ideal to...
Yes, the WM-D6C's DC-DC regulator makes a LOT more sense that way All very good advice. Most wall-wart power supplies are not very good, so I will...
Read The (Fine) Manual
".....I have no idea what voltages are for the capacitors inside of walkman's." RTFM. They're all listed.
A large number of the through-hole caps you recommended are ONLY RATED FOR 4 VOLTS!! This is NOT acceptable.
Thanks for your reply. Now how about over-voltage to the remainder of the circuits? I saw posted that some wall-warts marked as "6V" actually put...
On Sony Walkman WM-D6Cs, Dolby ICs (IC101 & 201) were changed from the CX20086 to CX20218 per SM supplement 1, January 1985. Does anyone know if...
doorz says: "Same rewind speed with 3.7V or 5.0V, just tested with full/empty battery "mix" So I think the MCP1702 with a 1N5818 in series (for...
If you look at page 8 of the datasheet for the MCP1702, you will see that the dropout @150mA is only 0.2 volts at 150 mA @ room temperature for 5...
Thanks for your reply!! I had temporarily forgotten that there was an outside driving transistor, which, as you said, supplies the drive current...
I would like to know the maximum current draw of the CX20084 motor drive IC used in the Sony Walkman WM-D6C. I would guess that would be in fast...
Is this happening on both the main and headphones outputs? If it's just one, try D-5 contact cleaner on the jacks.
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