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I have an AKAI X-1810D tape deck that does not auto reverse with the sensing tape in place on the tape. Also, is a repair manual available on-line? Any assistance is appreciated. Larry

Posted by Anonymous on

  • Anonymous Jan 06, 2011

    Thanks for your response. I tried your recommendation with no positive result. Also, the manual reversing function (buttons) have no effect either. Any more advice?

  • Anonymous Jan 06, 2011

    Yes, the deck plays. Just can't get the reversing functio to work--manual or auto. I'm the original owner of this system as I bought it in 1972 while with the military in Korea.

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  • Master
  • 8,546 Answers

Just a guess. Have you cleaned the two conductors on the sensor? You can test its function by running the tape in either direction and shorting it with a non-ferrous metallic object, say, an aluminum. You don't want anything magnetic near your prerecorded tapes.

Posted on Jan 04, 2011

  • 1 more comment 
  • David Dunn
    David Dunn Jan 06, 2011

    Your latest input regarding the failure to reverse under switch command is the FIRST thing we should have considered. Combined with the sensor issue we probably have a logic failure to drive the solenoid(s) that change transport functions. Does it even Play?

  • David Dunn
    David Dunn Jan 06, 2011

    So does it still Play Forward and Rewind / Fast Forward? I hate to say it but 38 years is a long time for a fossil to keep on keepin' on. I mean the machine, not you. I'm only a couple of years behind you and I had a Teac A6300 that would skew the tape off the capstan in reverse so I stopped using the Reverse function. That may be your only economical option unless someone with the specific expertise chimes in.

  • Anonymous Jan 06, 2011

    Yes, it does all that. These machine are much better than those nerwer models. I also have a Sansui 8080DB Stero Receiver along with a Pioneer PL-530 Turntable which are fully functional that I purchased in 1977 while with NATO in Naples, IT. I've been searching for a business/firm that does overhaul/refurbishment of these type system with no avail.

    Thanks for your support!

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Although I placed both ends the necessary sensing foil ,when choose auto-reverse with my Akai GX-636 RtR only the right tension arm sense the foil and blocks without reversing.When in recording mode it...


I'm pretty sure the auto-reverse is NOT supposed to work during recording. What would be the point since it only records in one direction?

And I'm pretty sure there's only one reverse sensor, usually to the left of the heads and not necessarily on a tension arm. The sensor foil is supposed to be on the non-oxide side of the tape so it will adhere better and never contact the heads.

This picture of a GX-635 shows a typical transport ...

http://www.oaktreevintage.com/web_photos/Reference_Photos/Akai_GX-365D_Front_Face_Off.jpg

There's a knob for how the auto reverse. Is it set correctly? I believe infinite forward / backward play is possible if you have the knob set properly, a sensor foil on the tape and the tape counter set to 0000 at the beginning of the recording.

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This is a common problem....with tapes.....in the old days there was a shiny end of tape (EOT) sticker placed on the tape end which was detected as the tape end and caused the electronics to reverse the motor drive to play in the teverse direction.

If consumers alter the length of the tape by cutting and joining they used to cut off the EOT sticker and then the tape wouldnt reverse like in your case.

Now days a hi frequency signal is recorded on the tape and a detector circuit inside sees this signal and reverses the tape for you,

I would suggest that the simplest thing to do is to clean the playback head with a cotton bud and some special head cleaning alcohol.
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Different manufacturers do this EOT detection in different ways but the head clean is the first line of attack that you can do yourself.

Please turn off the power before doing this activity and be very careful with the cotton bud that you are not rough and dont push too hard on the recording/play back head.. Be gentle...
The cleaning liquid must be proper head cleaning liquid, so dont try shorth cuts and use just anything to do the cleaning or you may ruin the detector head surface.

The quality of play back sound will also improve from a good clean..

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