I returned back to my VTR restoration project after several years pause when I purchased at last a pair of brand new and decent oscilloscopes (one digital with LCD-display and one analog with CRT-display). From the very beginning when I obtained this VTR it have had a trouble with video picture color playback. Maybe some parts of the electronic is out of adjust or the AST video head is worn too much. VTR operates on European PAL video system standards.

This VTR may have been storaged without any use for about 10-15 years in some questionable, maybe too humid environments before obtaining it, because some screw heads on tape deck are covered with a thin layer of rust. All the electronic parts looked clean. No oxidation visible on printed circuit boards and electronic components.

During shooting this video the VTR and the time base corrector (Microtime Tx4) are both synced to reference video signal from video camera colour bar test signal output.

I have complete service manuals for this VTR, but no test tapes required for some adjustments. In the time of shooting this demonstration video I've adjusted only the video reference module PCB . At the very beginning the VTR's video output picture has no colours at all. Some improvements must have happened during adjustments, because the video output has now some colours corrected and some distorded in rapidly variable horizontal video lines. This colour trouble is visible in the lower left little picture of this video, which I captured in real-time during operating the VTR.

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