Question about Zenith VRE4222 VHS VCR
I was given a Zenith VRE4222, but without a remote. I purchased an RCA universal remote and was able to program it. The VCR turns off and on, changes channels, records, plays, rewinds and fast forwards, , but when I press the menu key nothing happens, so I cannot set the clock or program it to record. I thought maybe there was something wrong with the remote, but it works fine with my TV, including accessing the onscreen menu. So I'm stumped. Should I return the remote I bought and try another one?
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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
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
Problem seems to be related to the "write protect" tab on the tape not being sensed. Is the tab removed? That would explain things there...accordianman
Posted on Jan 21, 2008
SOURCE: Sony VCR
I'm not sure how old your unit is but over time, the rubber parts in a VCR become cracked, glazed and begin to slip.
There is a rubber wheel about the diameter of a nickel that is called the pincher wheel and does exactly what its called.
It pinches or compresses the tape against a shiny metal spindle called a capstan. The capstan spindle is connected to a motor. The pincher wheel rests against the turning capstan with the tape in between the wheel and capstan.
The pincher wheel can become glazed and coated with a brown oxide that has worn off of the tape. This causes the tape to slip and it can spool out into the VCR.
There is another wheel called an idler tire. It lays flat and pivots between the sending reel and pickup reel. Its used during play, fast forward & rewind. This wheel too can become glazed and worn causing slipping. If your unit won't play, fast forward or rewind, most likely the idler tire is the culprit.
There are also belts that can also become glazed and worn. These belts are used along with motors in the tape load/eject mechanism and capstan drive. If the belts slip, the tape may not load or eject properly and the capstan might not be turning properly.
When I owned my repair shop, one solution was we to remove the belts and/or tires and apply a re-grip solution on the rubber with a cotton swab, while roughly rubbing the the entire rubber surface back & forth with the swab. The re-grip solution actually eats away the top surface of the rubber leaving the rubber surface course and causing it to grip better.
Another solution was to just replace all of the rubber tires and belts. These parts including the re-grip solution may be ordered through www.mcmelectronics.com
Please let me know if I may be of further assistance to you.
Posted on Feb 26, 2008
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