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Tape adjustment Only seconds after I hit the play button the tape comes off track on my pioneer RT 909 Reel to Reel. Is there some way to make an adjustment to prevent this from happening?

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Jazzie: Your pinch rollers are worn. Put in a new set and probably a drive belt while you're at it and you'll be back in business. When the rollers are worn and tapered, the tape just rolls right off. Be sure to get the Pioneer replacements! Part---- RXB-325

Posted on Dec 27, 2008


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Posted on Jan 02, 2017


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How do I load the tape

I see your picture of a cassette player. Guess you are referring to that. (tapes also come in reel-to-reel, and 8-track). Just push the "EJECT" button (power may need to be applied to some units for the eject button to work). The tape slot will open. Insert tape with exposed tape on the "head" side of the opening, usually the heads are on the bottom of the slot.. You can't put it in any other way and have the door close. The "door" that opens has guides for you to slide the tape into. The side you want to listen to should face you. Either manually close the tape compartment or push the close button (depending on model). If the door doesn't close, you put it in upside down. Push play and enjoy.

Oct 01, 2014 | Audio Players & Recorders

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If he had it done by a person who knows what he is doing he most likely used a 1/2 track tape recording device. These are different than 1/4 track unit as they are used professionally an for mastering. You would need to find a 1/2 track type deck to play the tape back- they are made by Tascam, Otari, Studer, Pioneer, Sony and other lesser brands.

Feb 02, 2014 | Audio Players & Recorders

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I have a teac 2300s tape deck. My problem is when i press the rec / pause or rec play the 2 meters slam to the right. They don't move while recording,but the deck will record and playback. Putting the...

The leads to the VU meters have shorted out. The fact that it only happens when you push "Record" sounds like part of the mechanism is actually causing the short.

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I have a pioneer RT-909 reel to reel unit

This is a matter of the safety switch microswitches and the tension arm rollers and lubrication needed. I have replaced these 30 year old microswitches in the past and had to deal with the shut off issue as well. To get to the parts you need to take the machine apart somewhat- front panels off and so on. I have had 9 of those here in the last year.
If you want my help in the Chicago area- skywavebe

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Need a dowload manual for pioneer Direct drive reel to reel RT 707

Open reel is NOT that complicated or varied from machine to machine.

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Mar 14, 2011 | Pioneer Audio Players & Recorders

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Fostex e 16 tape warping

I can't speak to the specifics of the machine's mechanics but I have been into audio (hobby) and and a Service Engineer on data tape storage (from 7- and 9-track 1/2" open reel running at 200 inches per second and capable of start/stopping in .6" to 100-plus track 1/2" digital data cartridge tape) for over 32 years so I know a few things about tape media handling.

Squeezing 16 audio tracks into 1/2" of media doesn't leave much room for error in the analog world. The manual I found at discusses making electrical Play and Record level adjustments using a calibrated Magnetic Reference Tape BUT they don't discuss head azimuth setting or adjustment which could affect high frequency response and crosstalk between adjacent channels.

You could check for audible crosstalk by recording alternate (even or odd) tracks at a fairly high level and then playing back only the others. The crosstalk spec is only 50dB at 1kHz so you can't expect total silence but it should be on par with the residual noise of the tape without Noise Reduction engaged and should be fairly uniform across the tape.

Physical deformation of the tape will also plague any machine with narrow tracks. If the edges flutter you are definitely losing amplitude on the outer tracks. The tape itself could also be experiencing stresses due to uneven rewind tension that would result in an uneven 'pack' within the reel. If the appearance of the tape within the reel flanges after play or rewind is NOT uniform there may be a physical reasons for it. If any of the tape wrap is exposing edges of the tape you have to be extra careful to handle the reel without compressing the flanges. A perfectly wound tape would have a uniform wrap appearance and when viewed on edge there would be clearance between the tape and both flanges. Any contact with the flanges will wear or deform that edge of the tape.

If the reel flange is warped sufficiently it will contact the tape every revolution, too, and during high speed transport you'll see and hear it.

Physical Tracking within the tape path must be perfect. With a high powered lamp and no tape loaded examine the heads. There should be no visibly worn grooves in their surfaces that would alter the way the tape passes over them. Then load a new blank tape and view how the tape passes over the heads, looking for any deviation from perfect flat alignment within the tape path. It may help to place a piece of white paper behind the area so you can see the reflection of the light off the tape. Any variation indicates less-than-perfect tape-to-head contact which would result in loss of treble, crosstalk or dropouts. Repeat this with a previously recorded tape. If it's different then we need to suspect machine-induced tape problems.

Proper tensioning of the tape during both play and rewind is key as you mentioned.

Head wear is also a possibility.

One thing that many people overlook is the storage of their media to ensure longevity. A reasonably constant temperature and humidity is essential as is sufficient distance from magnetic fields. Though not very convenient, storing any tape (open reel, audio cassette, video) in a 'played' state produces the most uniform tensions and pack wrap so it's the best way to avoid problems that varying temperature might cause.

If you can identify or eliminate any of these problems and add that information to this post I'm sure someone out there might be able to assist with the next steps.

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3 Answers

Code: 31:23....please reinsert tape. everytime i switch it on.


u need to rate me for that ..ok dude....

actually this error is related to s reel i.e, the supply reel of the camcorder and some time when we insert a new tape in camcorder it start giving the error because the amount of tension is more in new tapes as compared to the old ones (used one) . . try to use the old tape u would nt have any problem .

but with new tape u will have these kinds of problem some times , to solve this problem for new tape u need to take the camcorder to near by service center of sony .nd they will align the tape path of your camcorder .

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Play back on Sanyo mr-929 reel-to-reel tape recorder is backwards

I also have an MR-929. The information that you need is in the 'Stereophonic 4 track stereo''. As stereo is only two tracks, there is another 2 tracks in addition to the one you are listening to. Wind the entire reel to the empty spool, and then play that. As you have to physically turn the reel over to do so, you should then hear the other tracks (or track, if recorded in mono).
I use my 929 to play my parents recording of my family from the late 60s, which were recorded on a valve (tube) Ferguson machine, which had a green "magic eye" level indicator, which as a child I found fascinating!


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1 Answer

I have a pioneer RT-909 reel to reel unit. When the playbutton is pressed,the motor starts the tape then it continually stops. I'm assuming that the motor or belt(?) is bad?

Hello I had the same issue the take up reel tensions need to be adjusted try this thread tape so that there is no slack hold one of the tension guide reels try the right one first hold it so that it is in the 12 oclock postion this is so that it wont retract to the left which will prevent the motor from stopping or going into the cut off position if it continues to play with you holding it in this position the the tension for the reels need adjusting this can be done by slightly turning the blue adjustment knobs that read PLAY / TU 7 FWD 10 one is for 7 inch reel and the other is for 10 inch reels it's the board at the very top of deck when you take the cover off turn them slightly to the left until problem is gone this is what I did and it worked

Oct 04, 2008 | Pioneer Audio Players & Recorders

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