Opened unit, removed two tapes manually- rolled drive wheels by hand to extract. Found rubber pinch roller off in left unit- found, replaced w/ cap (both loose inside case). Checked fuse @ power input for continuity- was OK. Replaced cover. Unit LEDs (standby 'time') not on- no response... (Previously told you, --- LEDs flashed as unit switched from "standby" to "on". Unplugged unit, replugged, no response= obvious now that left tape was not cycling due to roller missing...). Next step? Can I reset unit to light up / load tapes?
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Re: accordianman--Dual deck VCR not responding...
No. Sound like the Switch mode power supply is or has failed, to repair this would involve replacing capacitor and or some componets, Many repair shops these days have discontinude repairing VCR's becuse most of the time you can replace the entire unit for the cost of repairing it
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It might not be a type that is meant to be fixed by that method. These type of pinch rollers are often held in place by horseshoe clips. Once that is removed the Roller assembly will often drop out. However to get the worn roller out, might require it being bendered out of shape to remove the wheel.
1. Check to see if a tape is jammed inside (see 284 Extract a Jammed Videotape). 2.
Try changing the video input and/or output source. Many VCRs have two
ways to receive and send a video signal (coaxial and video direct). If
that works, try changing the cable for the other method to see whether
you need a new cable. 3. Clean tape heads (see How to Clean VCR Heads). 4.
Open VCR and inspect any belts that are accessible (see 284 Extract a
Jammed Videotape). A drive belt may be broken or loose.
If tapes are getting stuck / enmeshed inside the machine, itis 90%
probability) a mechanical problem. Change the Belts, clean all rollers,
idlers, and braking pads. I would suggest that you also replace the Capstan Pinch Roller.
Hi Richard, If you are referring to a Pinch Roller or an Idler that drives the capstan and reels they would have to be taken off and sent with the appropriate funs to Terry Witt in Sparta Michigan. He put new rubber on the items and that is the only way to fix these older units Sony included. He has done dozens of Pinch Rollers for me and they all work great. There is a Pdf file form to fill out. http://www.terrysrubberrollers.com/
Without physically looking at the cassette deck myself, I cannot be 100% sure the tape is wrapped around the pinch roller and capstan. The capstan is the chrome rod which the rubber pinch roller pushes to regulate the speed of the tape moving across the head. However it is approximately a 90% chance the take up reel for the tape stopped working from a bad tape or a loose belt which drives the tape take up reel. The clicking sounds like it could be the auto reverse solenoid because it thinks the tape has reached the end of play. The fun part is to remove the tape which you may have to disassemble the front panel if you cannot gain access to the tape from the top or bottom. You will need to cut the tape and remove it from the capstan and pinch roller to open the cassette door. Sometimes you can remove the capstan to free the tape. Once you have cleaned all the tape out of the unit make sure the belt for the take-up is good. If it is glazed, cracked, loose or broken order a belt. Clean all the pulleys and capstan and replace the belt. Your unit should be functional after the above procedure.
sounds like you nead to clean the capstan and rubber pinch wheel using a cotton bud and isoprenol alcohol. dip some of the alcohol onto the cotton bub and gently rub the little pinch wheel inside the tape compartment ( do not soak the bud and make sure the machine is turned off!) with gentle rubbing, ( try holding/stopping the rubber pinch wheel with one hand and gently rub the cotton bud on the rubber wheel whilst slowly rotating the wheel ensuring all sides of the wheel are cleaned ) and repeat this procedure on the little brass capstan that engages with the wheel. you will see some brown residue from the tapes on your bud...........repat this operation until no residue is visual on the cotton buds. Alao, do not use cheap ferric oxide tapes.......only use chrome types as they dont shed residue onto the machine parts! buy a demagnetizer and use once a month. it will make your machine sound like new. TIP; if you have no isoprenol alcohol use clear spirits like vodka or bacardi as they will do the job for you. good luck.
very likely that the drive belt has broken. I have fixed a TEAC myself using a large O-Ring from a hardware store (I know I was lucky to find a very close match). Open the unit and find the broken belt and take it to a hardware store to "size up" a replacement. Use the opportunity to oil the gear shafts and clean the rubber pinch roller.
I have dealt with many VCR's and would like to ask you a few questions before diagnostics.
How exactly did you get the tape out of the machine ?
There are several tape threading gears involved, and if you accidentally made one of them skip a few teeth while forcing the tape deck up the "position" switch will send erroneus signals to the tape threading position switch/ controller.
Was the tape rolled around the capstan/pinch roller ?
Did you have to force the tape loading tray up to extract the tape ?
Feel free to email me.
It may need to be cleaned. Mechanical problems are one of the big problems with VCRs they use alot of mechanical moving parts and play for so long they fail. Plastic parts dont help much either. The pinch roller takes up the slack and is usualy the part that fails first because it constantly runs along the tape and builds a coating on the rubber so it doesnt grip the tape and pull it back into the cassette. If its not pulling the tape back in then it hangs up inside and you cant get the tape out. Fastforward uses the reels to pull the tape not so much the roller.
Try and stop 2 times then fast forward then eject the tape. Try and eject the tape while its fastforwarding so it doesnt do anything else.
Sometimes machines will unload after its been in fastforwad a while then it will eject. You will hear a change in the sound when it unloads, you can hear the mechanical arms move the tape in and out of the cassette. Thats when you eject it. You cant really clean it till you get the tape out.
YOu can clean the pinch roller with fingernail polish or paint remover. It is a wheel inside it looks like a black tire. It pinches the tape against the capstan arm this is why it developes a film or a shine on the rubber making it slip.