Question about Emerson EV787 VHS VCR
I have an emerson EWV 404. When I push rewind it turns off. Then I turn it on and it ejects tape. At times it won't except tape at all. It plays and records fine, just won't rewind or fast forward. I was going to clean the mode switch but i can't find it.
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Posted on Jan 02, 2017
This is a problem with the process called 'tape loading' - pulling the tape loop out of the cassette and wrapping it around the spinning video drum, engaging the capstan and pinch roller and reel rotation. Check all the belts above and below the deck. Belts can appear to be firm but if they do not return immediately to their relaxed length when you stretch them 25%, they will need to be replaced. With the cover off, observe the behavior when you hit play. (You may need to put a piece of cardboard over the cassette to block external light from interfering with the start/end tape sensors). Assuming this is a basic VCR (no instant start features), you should see: 1. The video head drum begins to spin. 2. the roller guides move smoothly on the tracks, wind the tape around the drum, and stop snuggly pressed against the 'V-stopper' at the end of the tracks. 3. The pinch roller moves into position and presses the tape against the capstan. 4. The tape begins to move and is wound up by the takeup reel. 5. The picture and sound appear on the TV. With a 'rapid or quick start' (or it may be called something else) transport, the tape moves to a half-loaded position when the cassette is inserted. This is at an intermediate position partially pulled out of the cassette but not wrapped around the drum. On VCRs with a real-time counter and/or index search capabilities, the tape will be in contact with the control head. With an 'instant start' transport, the tape will fully load around the spinning drum when the cassette is inserted but the capstan will not engage and no tension will be applied to the tape until you press PLAY or REC. (After about 5 minutes, the drum will stop and it may unload to the half loaded or unloaded position.) Note that for VCRs with a real-time counter and/or index search capabilities, the tape must be in contact with the control head (but not the video heads) for all relevant modes. These VCRs (which include many modern units) must therefore pull the tape at least partly out of the cassette. In all cases, the completion of the sequence results in approximately the same mechanical configuration during PLAY. Several likely possibilities when it shuts down: 1. Everything occurs as above, picture and sound appear for a few seconds, but then the VCR unloads the tape, ejects the cassette, goes into REW mode, stops, or shuts off. Two common causes: The takeup reel does not turn and tape spills into the machine. This is sensed by the microcontroller which aborts record or play and attempts to save your valuable cassette. Most likely cause: old/dirty idler tire. As a test, turn the idler tire inside-out. The fresh surface will now work well enough to confirm this diagnosis and will continue working long enough for your replacement idler tire to arrive. See the section: "General guide to VCR cleaning and rubber parts replacement". The takeup reel is turning properly but
Posted on Nov 22, 2005
There schould be a release buuton on the rear of the machine. It's usually recessed and may be difficult to see. Press this with the yip if a ballpoint pen and extract the tape. If the tape is wrapped around the record/playback heads your only option is to remove the top cover and manually remove the tape. Sounds difficult but if you take your time it's not too bad a job.
Posted on Mar 08, 2010
Testimonial: "Thank you! - no button - took the top off. I depressed a lever next to the tape switched the VCR back on and pressed the eject button - it worked!"
ok sorry man gotta step in Its not the pinch roller as you claimed that picks up the slack on the tape its the pinch roller that would cause wow and flutter in audio on a tape on slower speeds what picks up tape slack is the takeup reel. Theres many reasons why the takeup reel dosent pick up the tape and there fore the unit "eats the tape" it could be a gear assy or even on older units could simply be the rubber drive wheel. Or a belt problem and I know these JVC s really well and its a combo the drive belt as well as the pickup gear assy.
Posted on Apr 04, 2006
Way to go. Usually if you use anisotropic Alcohol with a few Q-tips works well I've found.
Try cleaning the other tap path items like the capstan that the pinch roller get's pushed up to also with this Alcohol. The cleaner the better the tape goes through. Much better picture.
A/V Media Guy
Posted on Nov 19, 2009
Testimonial: "saved the deck - I was going to replace it! fast response too! Thanks"
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