I have a Walkman WM-D6 which was running on DC power supply normally but a few days ago, the motor start losing power after a few seconds of playing. Anyone has any idea what would be the issue?

my walkman wm-fx141 is doing, try the belt.

Inside the unit, theres a capacitor or something on the circuit board that has a little phillips head screw area on it, that if you turn it either clockwise or counter clockwise, you can adjust the speed of the cassette playback. This is usually a silver metal thing sticking up somewhere inside kind of shaped like a letter "U'. the inside of the "U' is a round insert like I said with a phillips head screwdriver cut out. just turn that inner piece left or right while playing a cassette to your desired speed.

Ho riparato molti d6,d6c e altri walkman di alta gamma, aumentando anche le prestazioni se richiesto e se possibile. La mia email: [email protected] I have repaired many D6, D6C Walkman and other walkman high-end, improve your performance if required and, if possible. My email: doctor.walkman @ gmail.com

I have repaired many D6, D6C Walkman and other walkman high-end, improve your performance if required and, if possible. My email: doctor.walkman @ gmail.com Ho riparato molti D6, D6C, e altri walkman di alta gamma, aumentando le prestazioni, se richiesto e se possibile. La mia email: [email protected]

Please check for the belts if the battery you have installed is new and the set gives a hum on play. If not you will have to check the power switch, the mechanism switch and the line to the main board.
If the motor turns but not the capstan and the reel then change the belt, the rollers or the pulley. I hope this will get your set back to action. Good day

Your set is running wild because the motor has lost the regulation.Hence you will need to replace the motor. It is also possible that the belt had jumped and got into the large end of the pulley to make the capstan spin higher. So remove and check both of these sectiions and confirm. Hope this sorrt yourr fault.Good day

Fat chance to repair yourself! we repair that WmD6c but very hard to do!

WMD6C has a pitch control on the back of the unit that can change the speed of the tape, so switch it off, but if that is not the problem then inside the unit it has a servo set speed pot on the main board.
Dave, Electronic Doctors email [email protected]

I had the exact same problem with my girlfriends sony nwd-b105 mp3 player. I fixed it by downloading the firmware version 1.2, which can be found here at the sony support link below.

http://support.sony-europe.com/dna/wm/nwf/nwf.aspx?site=&m=NWD-B105&site=odw_en_GB&odw_model=NWD-B105

- Backup your mp3 files
- Make sure your mp3 device is NOT plugged in
- Run the firmware executable
- When it asks for it plug in the mp3 device
- Check option: format data area
- Press Start
- When finished, take the mp3 device out and press the power button
- If everything went well it is creating a database again and will function correctly as usual
- Copy your mp3 files back to the mp3 device
- Enjoy your music again!
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Because of the age of the unit, Sony will not carry that part. However, keep an eye on E-bay and yard sales and thrift stores and hopefully you can pick one up real cheap. Good Luck