Question about Zenith Televison & Video
Please understand that the VCR tapes having a control track on the lower portion of the tape.
The control head senses the track and sends the pulse to the servo section of the VCR for switching the video heads.
If the alignment of the control headd is off, if the alignment of the tape positioner ont he drum is off, if there is dirt in the drum or rollers or dirt inthe control head( control and Audio head), this is possible to have the video not responding to tracking.
So clean the control head( the head near the pinch roller) and make sure that the tape is not pulled off the track.
If this is alright then the fault is within the servo section.
The possible control siganls are not processed and switched here with the help of the drum and capstan input signals.
This IC can be defective but you must be able to test with an oscilloscope to trace signals to confirm.
Posted on Sep 13, 2010
You need to clean the heads on your unit. If the heads are dirty the unit will play tapes fine but will not record satisfactorily. I have a tip at http://www.fixya.com/TipsAndTricks/thanks.aspx?thid=5970839 which expains the process in detail.
Thanks for using FixYa and for the great rating!!
Posted on Sep 12, 2010
Your record head is clogged, or the erase head is not working like it should. If the record head is clogged, it is beyond the scope of the cleaning products available on the shelf.
Call around to a local repair shop, ask them what a "Tape Path" cleaning would cost. That will also force them to visually inspect the erase head, and perhaps save you a service charge.
Posted on Sep 11, 2010
Could the Input color system be the same as your VCR?
Have you tried connecting your " Incoming Video "
direct to TV , just to see if it is OK?
What incoming video are you referring to?
Have you tried a camera or other source ?
( if you have one? )
Posted on Sep 10, 2010
I suspect you have a bad solder joint on your input switcher IC, or on the Plug's where they join onto the PCB, in that area, this sounds like a bad solder joint, somewhere in the Input switching section.
Also check, all plugs and connections are tight, especially the center pins.and earths.
Posted on Sep 09, 2010
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Posted on Jan 02, 2017
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