Sharp vcr troubleshooting and repair. Fixing a 1993 Sharp VCR. 2019-01-24

Sharp vcr troubleshooting and repair Rating: 9,6/10 1176 reviews

VCR service manuals

sharp vcr troubleshooting and repair

It has waves on the tape side. Replacement of the obvious shorted or open parts usually cures these. If this model is the type I think it is, there is an open diode along the inside edge toward the mechanism rear of the top circuit board. I called Sharp and spoke with their tech support - they apologized for the problem with their website and offered that they no longer sell these devices and so they are not likely to fix the navigation problem with the website. What is wrong with it? Either that, or the sensor may be faulty. Other problems, such as no display or no power, will occur if any of the others go bad. Ideally, if you could find the actual equipment that recorded the original tape, that would be your best shot.

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Sharp vcr a

sharp vcr troubleshooting and repair

I had to open and take teh tape out manually as it was not ejecting it out. Two very similar modifications follow: From: Guitarzan guitarzan aol. From: Tony Buffone uproc Aol. Rule Out the Basics Rule out common, basic problems before progressing to more intrusive troubleshooting methods. These extra pulses confuse the servo circuit in these machines.

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VCR Troubleshooting and Repair

sharp vcr troubleshooting and repair

Opening the case is usually the biggest challenge - screws or snaps may be used. Also because the tape edge had curled due to mechanical misalignment at some point. Will you also kindly send me a repair manual to my email address? We can't figure it out. It also gives error codes such as T eject D eject and other ones. Contact us to learn more. Replacing all electrolytic capacitors in the power supply is probably the best solution.

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Fixing a 1993 Sharp VCR.

sharp vcr troubleshooting and repair

All other tapes, that I record or rent or have bought, still work fine. When the tape is inserted it loads fine the head starts spinning but it doesn't play because the capstan is not turning. Of course, it may already be too late :-. This modification inverts the signal before it reaches the servo so that it is not detected. Camcorders are prone to changes in linear tape speed which make the tapes playable only on the original unit. I unplugged it for about a month and decided to try to play a movie, and it played for 30 minutes, then stopped. This is likely to be a professionals task and a rare ish professional at that.

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Contact SHARP Customer Support

sharp vcr troubleshooting and repair

It was the stupid loading arm. I know the remote works because the citizen and samsung remotes are interchangeable. I think I can fix that I think it is just mechanical. The repair is easier to do than to explain! He has taught numerous technical courses to private, government, and industrial technicians on the theory and maintenance of video and television equipment. There are no timing relationships to get messed up as long as you don't try to cycle the mechanism while disassembled.

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VCR Troubleshooting and Repair

sharp vcr troubleshooting and repair

As you have already observed, newer equipment tends to have no tracking controls. Insulate all exposed leads I like hot-melt glue, it secures things in place as well. Whenever you have problems that seem to come and go or go away temporarily with repeated attempts to play or enter some other mode, the problem is very likely a dirty or worn mode switch may be called the 'mechanical state switch' by some. It also does not rewind. Twiddle it so that the tearing backs up the screen into the blanking part again, do this while the picture is rolling slowly. Portions of the following from: blatter amiga.

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VHS & VCR Repair : How to Diagnose VCR Problems

sharp vcr troubleshooting and repair

To satisfy the curious: the symptoms were a jittery picture on playback of tapes. Tape in the cassette have line marks on it. Five are in the area I mentioned, that is two along the edge at the middle of the board, and three further back, and two are located under the power transformer. Advanced troubleshooting techniques covered in the later chapters allow technicians and advanced hobbyists to make more complex repairs and adjustments. Have a question about a product or need further information? It also does not rewind.


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VHS Tracking Problems... can this be solved?

sharp vcr troubleshooting and repair

However, there are variations of this chassis that use an electrical contact mode switch instead. So whatever is on the tv that picture is there and the sound of what i recorded plays. These press on internal cams that are hidden when everything is together. Please suggest repair and rectify this problem. The picture cuts out for a few seconds at a time, and a blue screen is displayed. And even then, it may not have the information you need.

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Sharp VCR Service Manuals and Schematics — repair information for electronics technicians

sharp vcr troubleshooting and repair

Play junk tape to see if there is any folding of the upper or lower edges of the tape, especially just past the capstan. A powered, internal beam of energy converts television signals into an energy wave and strikes the glass screen, illuminating the phosphorous. If the syscon bus is loaded with corrupt data, resetting the syscon will clear it and may correct any opeational trouble associated with it. We cannot seem to find the correct remote code for a universal remote we bought. On the subject of the funai type rubber bumper problem I would like to give an additional symptom of that problem.

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Sharp VC V200T VCR Workshop Service Repair Manual

sharp vcr troubleshooting and repair

All this does is invert the servo pulse and keeps the circuit from becoming 'confused'. We had one that was doing the same thing on some pre-recorded tapes and not others. I know the tape is playing because I can hear the vcr working when I press either stop, rewind or ffwd. It wears out and then the lever catches don't engage properly. The bearing collapses a little, then the flywheel scrapes on the drive coil. It appears that it still plays and records.


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