Re: It acts like the heads are dirty but they have been...
4000 hours is not bad for a clean machine that is fresh
they reset the drum and capstan run time meters when the machine is serviced: so you can have circuit boards that are getting tired.. The boards have lots of Surface Mount Electrolytic Can Capacitors... the parts used are rated for 3000 hours of use at 100 deg Celcius.. they last longer as the temperature goes down..
they have a chemical inside that dries up...
so the machine may need overhaul.
but an old tape can cause this, a worn & dirty pinch roller can cause this also...
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First, you should keep away from the T-160 tapes as they are thinner and more likely to jam. The T-120 or less sizes are better. Next, use high quality name brand tape - not the off-brands found in the bargain bin.
Do the regular maintenance. All tape is "dirty" (including cassette, 8 track, reel to reel, etc.) and will deposit dirt on the tape heads and "transport" mechanism. Transport consists of capstan and pinch rollers that push / pull the tape in and out of the housing. when dirty, they slip and interfere with the "pick up" of a quality picture from the tape. Use of a quality wet cleaning system at regular intervals (or whenever picture quality deteriorates or tapes jam) is highly recommended. Here are some googled results for wet VHS cleaning systems:
I dont think you will be able to get the video picture to work, unless you connect a UHF lead from video to TV then tune tv into video. Digital and analogue generally dont talk to each other.
Hope this helps.
You might try to clean the heads, You can buy some acetone at any walmart, Kmart ect…Use a foam swab to clean the heads on the chrome cylinder that spins. (Do not use cotton swabs, it will get caught in the heads.) It has 4 small windows on the cylinder that are the record and play back heads. Do not use a lot of acetone at one time, just a bit. Let it dry for 5 to 10 min’s. Then try to record and play back something. Sometimes it takes more than one cleaning. But.. Always let it dry good before putting in a tape or it will clog the heads worst. I have found that cleaning tapes only work if the heads are not very dirty. A manual cleaning is the best. Radio shack may carry the foam swabs. I’m not sure but electronic supplies do. Hope this is helpful.
The video heads are dirty. Clean the heads and your picture should be fine. If a cleaning tape does not clear up the problem, try running a blank tape throught the unit from beginning to end in play mode.
I assume the picture after viewing your "certain movie" you have a snowy type of picture with sound? This is because your "certain movie" will have a bad section or worn section of tape & is making the heads dirty. Is there a part of the "certain movie" that gives wavy lines or the picture breaks up? If a tape is constantly used it causes the oxide coating of the tape to flake & dirty your heads. You could try a head cleaning tape although these sometimes do not do a thorough clean.
most of no signal means dsr 11 or similar machines have dirty heads. When they get dirt sometimes, you can´t play a cassette and the machine turns off (with the cassette in).
I´ve tried several times to reload the cassette and I manage to make it work again.
with the cassette in and the machine off press at the same time power and fast forward.
When in fast forward press play and your head should be starting to be clean (takes 4 o 5 minutes
to get a clean picture). Normally the machine gives a code error like if it was a loading problem but
not nearly related
It sounds like the audio control head is at fault.
If all prerecorded tapes (movies) play with audio level jumping up and down, is is likely that the audio head is dirty. The audio head in the VCR looks very similar to a head of an old audio cassette player.
First, try to clean the audio head by running a VHS head cleanning tape. The cleanning tape will usually clean the path of all tape mechanisms..