L.S.
I've got a problem with a sony vcr type slv-se727 When i record something it can't (H)sync the replay picture. All previous recorded or bought movies play normaly. A still frame from the recorded stuff stands still as it should be, except replaying is without sync.
Any sugustions? or does some one have the service doc, in pdf format. Mailbox will take
First things first - a proper cleaning is in order.
Mark Z.
I cleaned all heads but still the same result.
Cees.
-- # A brain storm to one person could be a slight draft to the other one. # Cees Keyer, Amsterdam school of technology # dept. Electronic Engineering, Weesperzijde 190, 1097DZ Amsterdam, NL # pe1jmj-at-amsat.org Voice: (+31)20-5951639, Fax: (+31)20-5951620
His statement was that a "proper cleaning" is the first step. Cleaning the heads and not cleaning the rest of the tape path, particularly the ridge of oxide on the capstan and reconditioning the pinch roller, would indicate that you don't know what a proper cleaning is. The tape path is much more likely to need cleaning than the heads, particularly in the scenario that you described.
Leonard
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Then the next step is to check the tape travel in the tape path. Are there any creases at the bottom of any of the tapes? Is it curling at the exit from the pinch roller or at the entrance or exit from the drum? Is the RF envelope OK?
Leonard
Leonard Caillouet wrote: snip stuff clipped
I cleaned the capstan and the comnplete tape path. I did it at the same time as the head head drum etc. The recorder did "see" just 50 tape's so capstan didn't need much cleaning... It's just out of waranty so.
Cees...
-- # A brain storm to one person could be a slight draft to the other one. # Cees Keyer, Amsterdam school of technology # dept. Electronic Engineering, Weesperzijde 190, 1097DZ Amsterdam, NL # pe1jmj-at-amsat.org Voice: (+31)20-5951639, Fax: (+31)20-5951620
Hmmm the vcr throw the tape out spontaniously, so there is some problem in the tape path... i think but where to look, i am not a video specialist just an emc and rf specialist, so need some help in this department. Tape path in the dierction of playing a tape (clock wise) The first head is ? Then the video drum with 4 heads then a second head with a flat cable on top. And than the capstan with rubber roler.
So if i put a tape in than the vcr moves does stream the tape a bit forward, and eject the tape again..
shoot me Cees
-- # A brain storm to one person could be a slight draft to the other one. # Cees Keyer, Amsterdam school of technology # dept. Electronic Engineering, Weesperzijde 190, 1097DZ Amsterdam, NL # pe1jmj-at-amsat.org Voice: (+31)20-5951639, Fax: (+31)20-5951620
Hi...
From the supply reel; first the control head; then the drum, finally audio.
Sincerely doubt that cleanliness or alignment is the problem though, else you'd not be nicely playing previously recorded tapes.
At risk of being offensive, and if so I apologize... is it possible that you're trying to record things that you shouldn't be? (inverted sync, for instance?)
You still don't have to be shot, though :)
Take care.
Ken
Nope, if so i would use a cable descrambler... I understand it might be a software problem, the spontaniously removal of head overtake point from the software,,,, That's one reaction i got. It will take the first few frames normaly but than ... a mess in the H sync department.
And if i need to adjust the vcr i need probably the service doc... and some special tools . Or is a scope and spectrum analyzer etc enough... Or do i need a tv with a modified H and V sync for seeing the "side" of the picture.
i'll do, living near a lake so i'll strap the vcr to my feet and drown my self :S
Cees.
-- # A brain storm to one person could be a slight draft to the other one. # Cees Keyer, Amsterdam school of technology # dept. Electronic Engineering, Weesperzijde 190, 1097DZ Amsterdam, NL # pe1jmj-at-amsat.org Voice: (+31)20-5951639, Fax: (+31)20-5951620
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You might check the back tension if your video throws out the tape spontaniously. Any trouble with back tension will cause tape to go up or downwards on the video drum and the rest of the path. It depends on which side of the drum the tape is thrown out, on the take up side (to the right) most possible cause is bad take up torque at he take up reel. Vice verse with back tension trouble. When this happen your tapes could probably be damaged in no time.
Bjorn/SM2GXN
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