Question about Sony SLV-N750 VHS/S-VHS playback VCR

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Tape hanging up and will not record.

Insert tape, it expands internally as designed, but then tape will come back and will not record. When trying to eject tape, it hangs up internally on components and have to work manually to release tape for removal.



This is a Sony VCR SLV-N700

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  • Anonymous Mar 31, 2014

    I am trying to remove the ac/battery pack from the recorder & the release button is not working. Any ideas?

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There is a threading arm that has gummed up inside the unit. I suspect that the tape is not being loaded correctly. This is a common problem with the Sony units and requires the removal of that loading arm to remove gummed up grease. Once that is completed, the unit will function correctly. Please note that the height of this swing arm is critical to the correct loading of the tape. I would not suggest you attempt this repair because the tape height adjustment needs to be exact. A local shop should be able to resolve this for you with NO parts required.

Dan

Posted on Mar 12, 2009

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Changing video head of nv450en


I can't speak to your specific model VCR however, when I managed a VHS tape winding clean room in the 1980's, I had occasion to change heads on several occasions. It is not enough to know how to do it but, you will need special tooling designed for changing heads on your model of VCR. Physically changing the head is easy; a few screws and electrical connection. The problem is alignment. I worked on JVC recorders. JVC provided us (at great cost) an alignment tape. The tape about two or three minutes long. The tape is played and an oscilloscope is used to peak the signal. In theory once aligned, video tapes recorded on any properly aligned machine would play back on any other properly aligned machine. I practice, it did not always work because the of slight variations between different batches of alignment tapes. If one batch of alignment tapes was at the high end of the tolerance and another batch was at the low end and given the slight variations in the alignment process, tapes are not always playable in every properly aligned player. You can align you recorder on one of the tapes you previously recorded but, it will probably not work other players. Try it because at this point you have nothing to loose. You will need to get access to your recorder's service manual to find the test point on the recorder's mother board for your oscilloscope. JVC, and I presume other manufacturers, have waveform photos or drawings to assist you. Good luck!

Mar 07, 2014 | Panasonic VCRs

Tip

How to Safely Clean a Tape Video Head


If you are not getting video from a VCR, 8MM camcorder, or Digital Video recorder camcorder but get audio, do the following: <br /> 1. Use a brand new tape - right out of the package and insert it into the drive. <br /> 2. Perform a record on the tape - set it to do a RECORD (not playback). <br /> 3. Allow it to complete through the entire tape without stopping. <br /> 4. Upon completion - allow it to rewind. <br /> 5. Insert a known good prerecorded tape and play - observe the image. If it's good, then the head was just dirty and is now clean. <br /> You may perform the above as often as necessary without any damage to the device.

on Dec 13, 2010 | VCRs

1 Answer

MY RCA VCR - TIMER LIGHT ALWAYS FLASHES. WHEN i TRY TO RECORD OR TURN OFF VCR IT EJECTS TAPE.


If it plays a tape OK, then it could be that you have a timer set. In which case clear it! Or that you are using a blank tape where the slot at the back is open. If you are using a blank tape which is good and it still ejects the tape after setting the recording. Then it's likely the recording tab sensor - that detects the slot at the back of the tape - is either bent or broken.

Feb 22, 2013 | RCA VCRs

1 Answer

Tape isn't retracted into cassette upon eject on Sony EV-C100


l would sacrifice a old or bad tape here, remove all the tape inside a cassette and tape off the small sensor holes on each side.

That way no tape to damage and you can insert it to see what is happening.


What likely is the issue is when stop it, it or if the tape does not fully load against the drum with heads, when the arms retract that pull the tape out of the cassette the mechanism is not switching to rewind it back into the cassette.

Usually this means a belt is slipping or the idler unit is not working---belts can break or stretch or even come off---belts will get slopply or bad from NO use and it is common.

Dec 09, 2012 | Sony Video Hi8 Ev-c100 Ntsc Video Cassette...

1 Answer

I have a VCR Panasonic NV - FJ623 and when I insert a video cassette into it for playback or recording purposes,it always ejects the video cassette.Can you help, please?


I'ts likely that the record sensor that pushes on the tab on the tape is bent or broken. Making the VCR think you are trying to record on to a protected tape.

Oct 22, 2011 | Panasonic NV-FJ620 VHS/S-VHS playback VCR

1 Answer

Can't get the timer record to set. The tape ejects when I turn TV off. There is some trick and I do not have the manual to figure it out.


Try a new tape, or put a piece of tape over the hole found in the back of the tape you are using. If the record safety tab is still present it may be bent. A piece of tape will rectify this too.
The tab is there to protect the tape from being recorded over by accident. If removed or bent slightly, the vcr will detect it and will not record on the tape.
Most VCRs will eject the tape, or show some kind of error message.

Jan 04, 2011 | Symphonic SL2940 VCR

1 Answer

When I set the VCR, turn it off, the timer comes on but the tape comes out.


Sounds like hopefully just the record tab has been removed from the vhs tape itself. It is located on the back, left side of the tape. Where you normally put the labels. If its not there then there will be a roughly half inch square opening. Theres supposed to be a tab there to allow recording and if you dont want to accidentally record you remove the tab.
If you have a store bought movie they already have the tab removed and you can compare it with a blank tape and you will see the difference.

If the tab is there, then it will be the internal switch inside the vcr that rarely but probably will be bad. You can try cleaning it with say a q-tip and alcohol. I could not locate one to purchase if it is bad. You might have to buy another vcr. Parts are extremely hard to get on vcr's because of price of new ones.
Hopefully its just the record tab. Thanks and good luck

Nov 10, 2010 | Sanyo VWM-800 VHS VCR

1 Answer

Vcr ejects tape when i try to record.


is the erase protection tab removed from the cassette?
if yes there is a square hole on the back of the tape visible when you insert it.
put a piece of sticky tape over this hole and make shure it does not come loose.
it should record fine now when you insert it again.

Aug 30, 2010 | Sony SLV-N51 VHS VCR

1 Answer

Wont Record


Usually when a tape starts to play automatically this means that the tab on the back of tape has been removed to stop others recording over it check the tab little black tab in a recess on back edge of tape if this is missing you can put a bit of sellotape over the whole to blank it off this will tell the video tape is ok to record on.
However if the tab is still in place the try putting a small bit of tape over it also to raise the clearence slightly then put back in video and try to record if this still dont work then the mechanism that detects the tab has failed these can be replace but usuall parts are hard to come by now as they no longer make vcrs any more but let me know ok i can assist you further just check tabs in place even try raising it with a bit of card stuck over tab with tape this might make the tab switch work if it has wonr down abit let me know ok.
As you look form back of tape the tab is bottom left hand corner check its flush with the tape if not use sellotape to repair let me know the outcome ok

Feb 15, 2008 | VCRs

1 Answer

Tape stuck in VCR, won't eject.


you posted 2 different problems here...
to answer this one ". The tape is stuck, won't eject and I'd like to get it out without damaging the VCR unit."...open unit, find motor that moves tape ejector and spin that motor by hand (power off)

the other problem, "the VCR will not insert a tape. It keeps rejecting it."...open unit and fully turn ejection motor until home position is reached...this is a home sensor switch not being activated.

Feb 04, 2008 | VCRs

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