Getting the most out of your tascam 424 mkii

Getting the most out of your tascam 424 mkii install#
Getting the most out of your tascam 424 mkii mods#

I have used newer 2000/4000 rpm motors just to verify they will indeed replace the original and they do! I also have a good supply of belts because I do not know if you can make these last indefinitely even with regular maintenance.

Getting the most out of your tascam 424 mkii mods#

These mods also allow for non-original motor replacement should sourcing an original or one of the newer 2000/4000 rpm motors be difficult.

Getting the most out of your tascam 424 mkii install#

I have also found places inside the machines close to either the tape transport mechanism or the speed controller board to install the motor pcb and connect it successfully to motor and speed controller board as the motor IC will now never overheat again and if you so choose you can even heatsink the IC. Also unsoldering the little circuit board is a no brainer but you have to be aware of the points to unsolder and be quick about as not to overheat the board and components. Replacing this IC will restore the motor back to working condition. What I know is this the IC motor controller is what quits and/or malfunctions, it does so eventually because it runs hot closed up inside the small motor housing. I have repaired six of these this past month alone. There are some very easy things anyone can do to repair these if they do not have burned up armatures. I would also like to share what I have learned about working on these Tascam Portastudios because I have a lot of them and still find relevancy in using them.

Hi All, Well after all this time I finally have everything back up and running like almost new. I rebuilt one for an Tascam 238 a few years ago, i thought i Doc'd it on here, But I was under a different user name, So? Sounds like you've got a pretty good concept of the workings. Please check the availability with your local distributors in other areas.

This model has been discontinued in North, Central and South America. 4-Track PortaStudio with High Tape Speed and Noise Reduction. Its advanced feature set offers something for everyone. The other thing I think I'll do is order the Sanyo motor controllers and see if the original motors can be fixed.voltage divider is a good idea, I read where others have had the same problem with ordering that motor and getting something other. The 424mkIII is TASCAMs finest cassette four track. The motor that is in the 424 now I think I am just going to employ a voltage divider and lower the voltage to see if I can get the speed down to where it is adjustable. I also picked up three more motors and as it turned out they were not what I ordered and I hope I don't have a problem getting the right ones. The other parts are two resistors and an inductor. I dug up the specs on both devices and checked availability for them. The main active element was a Sanyo motor controller devise with 5 legs for controlling compact DC motors and then there was a transistor. Thanks Rick, I took the original motor apart and the little circuit board inside contained to active elements and three passive elements.