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Makes perfect sense. The two items on some benches are contained in one. In my bench 2 there is a Leader Frequency counter hooked in parallel to the LFM39A wow and flutter meter. The reason for this is with one test tape you can set the speed of a two speed machines in that a 3KHz tape will read...

Well, I have heard this has been done but maybe for the low end crowd. If a person records the ideas of the tune on a Porta Studio that is fine it is part of the constuctive process but to do a finished product here, well I don't think it is a good idea. You can do it on some 4 track from reel...

Thanks for the manual link as I went there and downloaded it for my collection which I read to help people on the computer with questions. You are well on the way to getting it fixed up with this manual. It is very well scanned I must say- I left such a comment as well.

You need a synchronizer device I would think to start but this answer really should go to Jim Finch on the Tascam Forum as he may not be present here. I know of these items but have not been involved in the use or hook up of them too much other than seeing a 58 synched to a Umatic VCR at a CES show.

The MTT has a 3KHz signal on it but if one plays it in a double speed porta studio the frequency will read 6000 Hz because it is going 2X the regular speed. The wow and flutter tell you about the condition of the transport system and there are values to be met. The AMSoil I put in the capstan...

Well you are missing the measuring devices either a wow and flutter meter which you set speed using the drift meter or a frequency counter. Trying to set speed by hearing music does not work for accuracy and so the deck will still be off. High side means 3000Hz or up to 3009HZ and anywhere in...

Well if you get a service manual and a tape that is reasonably accurate then you could adjust the speed. This is not tinkering as that will result as it has in many other problem caused by people that go into these not knowing how delicate some parts are. So you need a 3KHz reference tape and a...

Well there are only owners manuals available and so this would indicate that they don't want anyone to repair this thing. Like a lot of digital junk made it is considered throw away. If you contact places like TAP they will probably estimate the repair at $800 as they have done to other items I...

Some guys post and expect an instant answer but some expert people do not stay on these forums every minute. Then they disappear and do not come back. Todyas younger people get too much in the mind set that the answers are immediate but the I phone won't help them here will it. Most likely it is...

I had the same thing when working on Sony TC-800 series. I then at that time ordered the manual from Rick.

He was a real friend and often helped me get manuals that were not available made and then he sold them to others like the Tascam 48 that no one seemed to have. He will really be missed now when I need a good manual. All the others are chancy. I have manuals I have bought from others that when I...

Most big companies (Full Compass) do not have test equipment as they only sell new devices and so the Leader LFM39A which is what I use if not a Audio Precision One plus Portable unit. I have two benches operating. Yes, the repair business does cost some money to get into. Test tapes, tools...

The Owners manual states it is an LCD display so these use back lights and in Sony tape decks and receivers and other LCD display devices often this is the problem although the use of LED for light sources has made better the failure rate, the LED also go out now and then. I think you are going...

Compute displays and TFT displays can be a problem as a lot depends on them working. Maybe there is a back light that has gone out. I would consult Jim about this digital stuff. Jim is Wrkbee on the Tascam site. https://www.tascamforums.com/members/wkrbee.72/

You need a speed tape called MTT111 or MXT111 depending on what speed you are adjusting. Then you need either a wow and flutter meter or a frequency counter. The service manual is going to say where to adjust. Decks from E bay are sold by idiots most the time and they do not know how to...

There are guys all over that you have to look for- they don't advertise this as it is usually part of a larger operation. All they need is a working 234 and a good audio interface to get into the computer. After that it is just clean up- cutting out blank time and so on. I may start doing this...

Rick Stout the owner of the business passed away on the 15th and he was the only great source that I had found for the service manuals we all need to work on decks. Info can be seen here- https://www.leavittfuneralhome.com/obituaries/William-Rick--Stout?obId=22699726#/obituaryInfo RIP Rick

If the schematics could be found I am sure some technical person could make the cables again using off the shelf parts. Opto couplers are easy to get but the connectors might be problems. I will PM Jim to see if he can provide. Not that I don't have already too many things to do.

As I kind of remember the switch arrangement in the unit I had here if you assign the track to a channel rather than to the 2Trk outs those channels have the EQ while the 2 Trk does not. Could this be what you are having trouble with? I had a lot of trouble with scenes and programming this...

Now when I go to send parts to clients in far off lands by Parcel post the post office has a large list of Covid restrictions as in they want you to use their more expensive service instead. Just makes me go to Fed Ex and do less postal business. When are they going to get thinking management...