Tapeheads Tape, Audio and Music Forums
Universal Capstan Motor

Go Back   Tapeheads Tape, Audio and Music Forums > Tape, Taping and Tape Machines > Reel To Reel

Reel To Reel All discussions pertaining to reel to reel decks. These include general usage, recording, playback, and service questions. For subjects related to tape itself, see the Open Reel subforum under this one. Obscure service subjects that don't quite fit go in the Help and Do It Yourself subforum.

Donate to Tapeheads!
Thread Tools Display Modes
Old 05-17-2017, 07:06 PM
redpackman redpackman is offline
TapeHeads Newbie
Join Date: Sep 2016
Posts: 4
Akai X-200D Deck - speed problems - motor stalls out in 7 1/2 ips

I'm working on an Akai X-200d I just got. Took it apart today with the help of the service manual I got on line. Cleaned it up. Lubricated it modestly - mostly on the shafts of the belt motor because the screws covering the oil-channels were not budging. Before the cleaning it would play in the forward direction only. I hadn't got to trying to record with it yet.

After the cleaning and putting it mostly back together I put on a pre-recorded tape. Both channels sounded good in the forward direction. Then I hit reverse. Garbled, but after a second or two it'd kick in and sound good in reverse too. I sprayed a switch behind the heads with De-oxit. Kept going back and forth, forward and back. Got so it'd play in both directions after a momentary pause, play and then the sound would kick in OK. I should have stopped while I was ahead. All the above was at 3 3/4 ips which was the speed of the pre-recorded tape. I could also play at 7 1/2 ips, and of course, Johnny Cash sounded like a chipmunk.

Then I switched it once more into 7 1/2 and the motor slowed way down and stopped. I shut it off, not letting it just sit there. I switched back to 3 3/4 and it would play but now it was playing more slowly than normal. The singer was now a bass.

It'll play in 1 7/8 and 3 3/4 (though more slowly than normal) but it just stops when I switch to 7 1/2 ips. I sprayed the switches controlling the speed with De-oxit. Nothing. It will no longer reverse either. Just kind of stalls out.

Both the take up and rewind motors work like champs.

So now what? Like I said, I should have quit while I was ahead.
Old 05-17-2017, 07:27 PM
andrewshannon1963 andrewshannon1963 is offline
TapeHeads.Net Member
Join Date: Mar 2016
Location: Bathurst, Australia
Posts: 41
Bad run Cap

ia, your motor run capacitor needs replacing...your motor is losing torque because the old capacitor has degraded (dried out).
Old 05-19-2017, 08:45 PM
redpackman redpackman is offline
TapeHeads Newbie
Join Date: Sep 2016
Posts: 4
Wiring the new motor cap

I am getting a 2 uf fan motor cap rated for 450volts from eBay. I haven't gotten that far into it thus far. The caps for the take up and rewind reels are in plain sight. Is the cap for the capstan motor also easily visible?

I also understand that it's a dual cap for 50 hz and 60 hz. Being in the USA I'm not planning on this EVER running on anything BUT 60 hz, So I'll just use the 2 uf cap, because I understand that 60hz needs the 2 uf cap.

So am I right in assuming that I clip the wire on the 2uf lead of the old run cap and connect that lead to one of the new 2uf leads and then run the other lead from the new cap to the negative pole of the old cap (or the wire leading to it). Is that right? Are the 2uf, 1uf and common poles on the old cap clearly marked?

Last edited by redpackman; 05-19-2017 at 08:49 PM.
Old 05-19-2017, 10:34 PM
andrewshannon1963 andrewshannon1963 is offline
TapeHeads.Net Member
Join Date: Mar 2016
Location: Bathurst, Australia
Posts: 41

Can you by chance , read a schematic?

The files are freely downloadable from hifiengine.com (you have to sign up to gain access-no cost)

Would you like to see your company or site here?  CONTACT US
For more Tapeheads affiliates and links, see the Links and Resources page.

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Akai X-200D RtoR tape deck Mrtruck Reel To Reel 0 12-03-2016 05:23 PM
Akai X-360DS Speed Problems punchback Reel To Reel 0 07-13-2013 03:04 PM
Akai CS-F9 Motor problems greenhorn Help and Do It Yourself 0 05-07-2013 11:56 AM
Akai GX-270D-ss Speed Problems. Halladay40 Reel To Reel 2 11-05-2012 05:51 PM
Help with Akai X-200D motor lube & belts Reelfan747 Reel To Reel 2 03-28-2012 09:06 PM

All times are GMT -7. The time now is 11:41 PM.

Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright 2016, Tapeheads.Net. All rights reserved, no use of any element incorporated into this site without express written permission.