วีดีโอ

Great Upload , thanks OG

So you didn't actually show us how the belt goes on because you did NOT remove the capstan wheel...

You mentioned the two screws were a pain in the ass to get out. You didn't mention that they didn't need to come out ALL THE WAY.

Very nice helpful video I just had a custr bring one in he said it fast forwards rewinds fine but drags slips in play mode thinking capstan belt.thanks

1, You don`t need to take the wrist support screws out , just loosen them 2 , if you take the wrist support off first and then remove the 2 clips (one either side) you dont have to fight with the side trim pieces AT ALL .

what size of belt do you need to use?

Good afternoon! Please tell me the characteristics of the drive belt. Its size, length, width. Very necessary. Thanks!

would you be interested in replacing the belt and capstan on my 644 ?

As a Teac Technician this is good to show people how to take something apart but you lack the terms of parts and never look at the service manual to give correct information- the board to the right of transport is for speed adjustments not power or bias. The Capstan wheel is called the Flywheel the plate to the rear is a Thrust plate, The nylon on the capstan motor is a pulley and so on. If you are going to all this trouble with videos get a tripod to get us off the ocean.

Hi there. I have a problem that I can’t diagnose. When I press the play the heads come up but don’t stay engaged and drop down ? I haven’t yes taken the unit apart as the ffwd and rew still work so I’m not sure it’s the belt but thought I’d ask you first for any insight ?

Thanks! Just replaced my belt and did a clean up of the insides 🙂. Really appreciate your help!

Thank you so much for this video!!! It helped me so much to resolve a problem with my TASCAM 688!!! Thank you!!!

This video was absolutely instrumental in me replacing the belt on my 688. THANK YOU!!!

gracias por el video y a la gente comentando. para quien le sirva, la 688 usa la misma correa que la teac mk112II. a veces es mas facil segun el pais de donde eres conseguir correas para decks que para portastudios. saludos

Big help, thanks. Don’t need to remove the armrest screws completely, just loosen. That will eliminate the risk of those two internal screws falling into the guts.

Perfekt Video...thanks...i have the Same Problem With my 644👌👍🏼👍🏼👍🏼

I just followed these instructions to get it open, sure enough the belt is age melted in there on the capstan roller. Time for a new belt and back to using this amazing machine. I’m surprised to see there is a button cell battery in the piece that you pull back, mine has not been changed since at least 1999.

Thank you so mush... have had this machine forever and nobody is servicing these anymore so i really appreciated this video

just fixed the belt tanks a million you vide was really helpful however the record function is no working any idea why not? or what could be wrong?

I just need to find a new belt. These desk's are getting rare. Any suggestions would be appreciated.

any recos for lubricants for the motor / belt that you mention? as well as cleaners? also have a 644 with the playback issue. ordered capstan belt and motor replacement and using this video to make the repair. thanks!

He, have a Tascam 688 and it also stops the transport during playback. Would i be able to clean / hose it with contact cleaner without opening up the machine?

That thing is a beast! I have a 414. I want one of those though. Bet they're expensive. 😐

Merci !!!! thank you !!!

Hi whats the diameter of the belt...thanks

thanks for the video. with all the free time I can fix my 644 and 688.

Any one know how I could fix noisey headphone outputs?

Unreal ! may all your orgasm be pural :)

There is some disagreement on whether you need to put grease/oil anywhere. I just put a drop of sewing machine oil inside the capstan bore after I removed the whole flywheel by sliding it out. Rest I just left as is since it was all functioning fine .

Also the battery is CR2430. It is spot welded/soldered in. So you can't remove it by force. You don't need the battery except for savings scenes. For me the default scenes 1->12 are all I need. So I just left the old battery in there.

I just finished changing my belt thanks to this video! I also followed the service manual which you can get from hifiengine. You don't need to remove the screws for the wrist rest. Just loosen them a little and it will slide right out. When putting it back together, put on the side brackets before putting the wrist rest back on. There is a little L bracket that gets in the way of the side brackets. You have to remove it's bottom screw and rotate the L bracket out of the way. Then the side brackets goes in easily. Another gotcha was the screws that mount the transport to the frame. There are three, one on left and two on right. You need the right size screwdriver to get them out. I had to experiment with different bits to find that would grab. If none grab you can try taking pliers to grab the screw and rotate it. When putting these back in , don't over tighten. They are not meant to hold the transport securely. There will be a little wiggle room which gets removed when you put the two final scews that go through the cassette well.

The service manual is on hifiengine if anyone needs it.

what's the part number for the capstan motor and belt ?

Hey, thanks for the great video! I have a question regarding the transports connection to the brackets (one screw on the left, two on right). When tightened all the way down, the transport is not 100 fastened (it wiggles). Was this done deliberately, relying on the two small screws inside the deck to stabilize the transport, connecting it to the front plate? Thanks!

Is there only one belt

Anybody know where to get the belts for the Tascam 688

This video is amazing...

Hi man. Can you give me your email. I want to discuss about py with you

Kind of a repair beginner here, do I need a designated 688 belt or do any cassette deck belt do the trick?

Hi - I have an older grey 688. The fast forward and rewind work fine - but it wont play - the cassette head moves toward the tape then goes back and stops. However - strangely - if I hold the black plastic tap back as you suggested with no tape in - the right play motor turns fine. But when I put the tape in nothing turns and there is a skidding sound. I notice with the tape in the capstan against the black roller does not turn - is that supposed to be motorised?

I Just bought a 688 , it seems to have good belts, but it stops playing the tape after a while. I hope this is the solution.

Thanks for posting this! For anyone else struggling with getting the wrist piece off (on the front of the unit), I also had to take three additional screws off of the bottom. These are clearly visible and not hidden inside holes or anything. Also, he forgot to mention there are three screws on the right side of the transport control panel that need to come off before you can pull the panel off.

I'm blown away how you managed to do this while holding a camera. Did this yesterday on my 644 just to realaize that the actual motor driving the belt was broken. And after that I accidently made contact with something and I think fuse or something went out. It doesn't even light up anymore. F a i l. Any ideas on what it might be? Would be extreeeemely thankful for any ideas. The fuse in the power adaptor seems fine and it sounds like the power adaptor works (low hum)

Does anyone know about the Battery? How to change it..I thought it might just pop out but it didn't..Any info?

Thanks to this video I have a 688 I bought for 100 dollars original owner.. This video gave me the confidence to change the belt Its working Great!!! Thank You!!

Thank you for this video. I replaced the belt, but my FF and RW still don’t work, and the playback is sluggish. If I try it without a tape, playback still sounds like it’s struggling, FF works, and RW looks like it tries but can’t get it moving. It acts like the motor(s?) is weak. What should I try lubricating to get it going? Other ideas?

This is awesome, thank you! I've just completed this repair and all is well, but holy crap, I have having a living nightmare getting the side panels back on. Any suggestions from anyone? I just can't get the front clip to catch in the hole, and that damn metal tab up front is totally in the way.

I am having problems with my tascam 688. I’m getting tracks 1 through 4 Recording to tracks 5 through 8. Also tracks 5 through 8 recording back to tracks 1 through 8. I’m not sure why this is occurring. I have one into the matrix and routed the tracks properly but this is not fixing the problem. I have change the recording input to line input and to microphone input. And still coming up with the same results. I have Erase my own presets and went back to factory presets but this is not working for me once again still having the same issue.can you me help out with this?

Dude, This is great info. I am having a problem where the Capstan motor seems to be continuously spinning, even with no tape present. I noticed your Capstan was spinning until you powered down. My unit is as pristine as yours, with actually very few hours considering 1990(?) Purchase. Virtually no Stunt mode shuttling, or variplay, simply record and playback, maybe 100 hours lifetime on unit. I was always a diligent cleaning / degaussing engineer, having worked on 1” type C” Broadcast units since early 80’s at MTV and HBO. Is the Capstan motor supposed to spin all the time? It would seem that would burn out motor. I only noticed this very quiet day in my loud Condo. I see Battery for CPU under Board you removed, I have not even had to replace that. Thanks a million, any ideas? Do not have either my owners man or a service manual, though I downloaded a barely visible ops man. Great Unit for its day, still works, but I figured some micro switch was giving a false run signal, even without tape in unit. Idea’s? -Bobby

nice job,... one handed no less!.... not sure if I would attempt it with a camera in one hand. I have the same job in front of me... would you think the procedure is the same for a 644? also where did you find a replacement belt?.... thanks.