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Posted on Nov 23, 2009
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The tape runs a bit fast on play mode. Is there an adjustment for this or is it a board or motor problem.

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Grubhead

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  • Yamaha Master 5,755 Answers
  • Posted on Nov 24, 2009
 Grubhead
Yamaha Master
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Joined: Jan 21, 2009
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Sometimes the motor has a control pot on the top. You might find it under a label, it will be only a small circular hole.
Otherwise trace the wires from the motor back to the PC board, you should see a Pot for the speed there.

Please bear in mind that if it is a second hand machine somebody could have replaced the motor with the wrong type.

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I have a Panasonic omnimovie Pv-610 and only one of my vhs tapes plays in fast forward mode, how can I fix?

If you mean just the one and the rest then it was probably recorded in Extended Play mode and nothing can be done.
Otherwise please explain your issues in more detail.
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VHS Tape Suddenly plays in fast forward, can this be fixed?

Hi.
Why is my VHS tape playing fast?"); display: inline-block; height: 24px; width: 24px; margin-top: -1px; transform: rotateZ(-180deg);"> If you have a VHS video tape that's playing too quickly then it's very likely that the player you are using does not support either LP or SLP. SLP capable video players should automatically detect the mode and adjust automatically.
or try this link out.
https://www.manchestervideo.com/2017/09/15/faq-why-do-some-video-tapes-play-too-quickly/
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33 Records are playing a bit too fast on my Wockoder Record Player... Is there any way to fix this?

Lots of quality turntables have a speed checker and a limited amount of speed adjustment.

Many ordinary record decks use a synchronous motor, the speed of which is regulated by the Hz of the mains supply and with mostly fixed gear ratios it is impossible for them to run faster - slower is the usual problem.

I expect there will be types driven by a dc motor and regulated by a switch mode power supply but I know nothing about them.

I suggest you begin by learning something about your turntable.
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Nakamichi cassette deck one. i bought new motor for this deck because the old one was surging (checked the voltage for fluctuation 1st to make sure it wasnt a pre-motor problem). installed it and the new...

There will be either a hole in the top of the motor with a speed adjusting preset. Or there will be one on the printed circuit board. New Motors don't come set up. You have to adjust them for each deck. You will need a small screwdriver to adjust. You will have to figure out by ear when the speed is right.
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Marantz Cassette Deck Plays Tapes Slightly Too Fast

The speed should be adjustable but the common practice is to use a frequency counter and test tape or test tape and wow and flutter meter. I look at this from a Technician's point of view as I have been fixing units for 45 years so far. Once the motor speed control is found it does not take too long. Sometime it take more time taking the cover off.
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Camera plays in fast forward-like speed

Though I don't know the details of your camera and the tape you are playing, one explanation could be that the tape was recorded in "extended play" EP rather than "standard play" SP. Some VCRs and some cameras are incapable of playing back in EP, a mode where the tape moves at half speed so you can record more on the same tape. The result is that the tape playing back at regular speed appears twice as fast and fast forward will be even faster.

Unfortunately, unless your machine can be manually set to play back in EP (usually it is automatic) the solution is to play it back in a machine that can handle EP.
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Tape decks playig too fast

Hi I can probably tell you what is wrong, but there is usually not much you can do except take it to a shop and have the motor replaced. I most cases there is a hole in the back of the cassette capstan drive motor, or on a small circuit board close to the motor where the speed is adjusted at the factory. You could possibly adjust the speed by ear until it sounded right playing a factory recorded tape with a song you know well, but I recommend these adjustments be left to a tech with a frequency counter. Also, these adjustments normally never need to be touched unless replacing a motor, so it is likely something internal has gone wrong with the motor, and it should be replaced under most circumstances. Hope this helps, Good Luck.
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Rewind or fast forward

Though not familiar with this model, VCRs of all sorts have an idler mechanism which drives the supply and takeup spindles. Either the idler is somehow defective and slipping, and, assuming this idler is belt driven, the belt may be slipping just enough to cause a no Rew/FFW condition. If you had access to a test tape jig (a clear dummy tape, which allows a tech to view what is happening in the area normally obscured by the loaded tape), this might give a clue as to what is happening. On alot of machines, a problem with Rew/FFW would also mean a tape takeup problem in standard play, result in tape spilling out inside the machine. Sensors would catch this condition and go into a error mode, as yours is doing. One other thing which might be happening here, is the pinch roller not being disengaged from the capstan in the Rew/FFW modes. I think this is where I'd look first, and you can probably see if such is happening just by pulling the cover off the VCR. The pinch roller is just to the right of the rotating video head. In the play and forward/rev search modes it will press the tape up against the capstan (a rotating shaft). When in Rew/FFW, the pinch roller should be pulled back from the capstan, maybe 1/4 inch or so. Whatever the case, repair will likely take someone tech savvy. Costs might not be economically justified, with the low-cost, disposable rigs sold in the last 10+ years.
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Denon DRM 740 tape does not play

Just bought a unit from a thrift store. Found same problem; FF & RW OK, but play engages then stops. Also noticed buzzing noise when power turned on. Opened unit, found broken capstan drive belt. FF & RW driven from different motor. Buzz was drive motor running freely with no load - when power is on, capstan is driven all the time for fast play/record start. Replaced with rubber band, and it works --- now looking for replacement belt.
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Cassette Player

Motor speed needs to be regulated by PWM. Reducing the current (with a resistor) actually lowers the torque - which, with a given load, does result in reduced speed - however, different length tapes (60min vs 90min), as well as different quality, and even current position in the tape, will change the load and hence the speed. You need to regulate the speed via PWM. It's sometimes done on a small board built into the motor, in which case you'd have a round hole into which you could insert an INSULATED screwdriver (tiny flathead wrapped most of the way in electrical tape works). It may be done on the main board, in which case you could find a pot conveniently labeled "motor speed", or perhaps "pulse width" or "pwm" or something to that effect. Find it, mark its current position just in case, and turn it to see if it gets the effect you're after. And there are some tape decks in the world with no speed adjust - they are designed with a specific speed motor and the sizes of the wheels and gears are calculated for that speed. Also there may be a mechanical fault/malfunction causing the speed problem. An initial check and thorough cleaning of the capstan and pinch roller should be done. If there is a buildup of tape oxide or a piece of a broken tape wrapped around the capstan, the tape travel will be too fast (do to the effective increase in capstan shaft diameter). If the pinch roller isn't fully engaging, the tape can be getting pulled onto the takeup spool at a speed faster than the capstan control. A different source of trouble might be a slip clutch (possibly an idler/clutch assembly)which is binding, or otherwise not functioning the way it should. Another type of motor doesn't have it's speed controlled by an internal or external voltage.. instead, the motor has an internal centrifugal speed controller. This type of motor can be found on older tape decks, and might not have been utilized more recently. Good luck
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