Question about Sony SLV-778HF VHS VCR

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It won't register a tape entering

I've had this vcr forever and i have a bit of knowledge in electronics and it stopped working one day and started eating tapes so i took it apart and found out it was the small rubber band like belt on the gears underneath so i got a new one and put it all back when i try to put a tape in it it won't take the tape or register therew is a tape there can anyone help me out i would really like to have a vcr again....... ~lisa

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Re: it won't register a tape entering

Check all wire connections again inside, especially the motor to eject the tape.

Posted on Jul 18, 2007

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Hi, some of the components is worn out because of age or the electronic eye needs attention....

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VCR Stops on me

Hello Ro Power,


This might be due to the tape sensor malfunctioning. You will need a schematic, and multimeter, and a LED power meter to work on this problem. When the tape loads it causes an LED sensor to become blocked and then the sensor tells the control chip that a tape is present and the the controll chip allows the tape to continue playing, if the sensor does not work the signal never gets to the control chips and since other events happend and triggered the control chip the control chip looks at this as an error and the stops the tape , some units even eject the tape.


If you do not have a background in electronics, I would suggest that you take the VCR to a qualified shop and have them repair it.


I hope this helps,

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Oct 17, 2007 | Quasar VHQ940 VHS VCR

1 Answer


The mechanism of a VCR is very complex. The incorrect removal of a tape will not only have caused the tape arms to be out of sequence, but also caused the electronics to be confused. Inside the VCR is a device called the Mode Switch. This tells the electronics which position the VCR is in. This Switch rotates with every movement of the VCR. When parts of the VCR mechanism are moved out of sequence to the rest, the mode switch will be in the wrong position. So the VCR electronics might think it's in the eject mode when parts of the mechanism are still in play mode.
If the mechanism was working normally the arms would have been retracted as soon as the VCR was powered up. So it's now out of sequence. Pushing a tape into the holder might cause the mechanism to reset, but I suspect that what will happen is that the VCR will either show a fault code or just power off. It does that to prevent the motors causing any damage when it gets stuck.
The only way to solve this problem is to have the mechanism set up in the correct way. This can only be done if you have performed the operation on several VCR's of the same type or have the service manual. The reason you need the manual is because it tells you how the different cogs, wheels and the mode switch need to be positioned. They often have holes are marks on them to aid in the set up. To make matters worse VCR's are rarely set up in the eject mode. Without knowledge of how to set up the video or the manual you will never get it to work properly.
One further thing you will need to check that the removal didn't damage any plastic parts. Plus clean the tape head and any surface that the tape touches.

Jan 02, 2014 | Sony SLV-765HF VHS VCR

1 Answer

VCR won't record, just ejects tape

You have not mentioned the make and model number of the vcr. Any way the problem is due to end sensor or related circuit. End sensors are photo diods which you can check the shorting with a multy meter.

Jan 13, 2013 | Emerson VCRs

1 Answer

VCR won't load tape all the way

Best to check the tape by comparing it with another tape. There could be damage to the case. Check that you can lift the flap at the front. If all else fails or you find damage on the case of the tape, the tape can be removed and placed inside a new blank tape case. The new tape reels would have to be removed first. It's a bit tricky, but as long as you dont touch the tape itself it should work fine.

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1 Answer

SONY keeps switching to EP at beginning of playing SP tapes

You may have dirty heads in the vcr---most 4 head machines use two for sp and the other two for lp and or ep.

Tape residue will usually be seen on the drum where the heads are when this happens--also look for the black residue on the tape guides that hold the tape in position against the drum-------

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I insert the tape and it stops and the power shuts off. If i turn the power on, it ejects the tape

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A spray of Servisol Video 40 on the switch will restore a dirty one. The other causes are more tricky. Since the whole thing will need to be set up again in position. This will most likely require the service manual as most VCR's are never set up in the eject mode! After any faulty parts are replaced of course!!!

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I have a Sylvania 6240VE vcr. When I try to rewind a recorded tape, the vcr ejects the video. I was wanting to purchase a dvd/vcr combo, but the reviews for these items are awful. I tried a Magnavox combo....

When you put the player into rewind, is it at the beginning of the tape that it ejects? If so, it may be because you have the machine in timer mode. If you have a pre-recorded tape in a VCR, it will automatically eject the tape because you`ve not to record on a pre-recorded tape. I hope this help, Ian

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This is caused by mechanical problems in the VCR. Depending on the age and maker of the VCR, the take-up reel in the cassette is driven by a gear, a belt or a rubber wheel. This isn't happening properly in your VCR, so the tape is piling up inside. Given the low cost of replacement combo players (I don't think you can find just a VCR these days), it's not worth having repaired. You can expect to spend $60 to $100 on a repair for this kind of trouble, assuming there are even shops still willing to take the machine in.

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