Panasonic DVD recorder strange color issue

[Lololobolosse]

Hi,

I just got into VHS capture and I got myself a simple setup to start doing my first captures. I have a Panasonic NV-HS820 (S-VHS, no TBC), going to a Panasonic DMR-EH55 as a passthrough device to make the picture more stable (I mainly capture SECAM tapes transcoded by the Panasonic into PAL), then to a GV-USB2.

I have a strange issue where there are pink blinking lines on the top and bottom of the picture. It only happens with the Panasonic DMR in the capture chain, and usually after around 20–30 min when the Panasonic starts warming up, these artifacts slowly start to appear. I first thought about maybe a capacitor problem with my DMR-EH55, but none are bulged. Would someone have any clue? Here is a short clip showing the problem.

[The_Doman]

and usually after around 20–30 min when the Panasonic starts warming up, these artifacts slowly start to appear. I first thought about maybe a capacitor problem with my DMR-EH55, but none are bulged. Would someone have any clue? Here is a short clip showing the problem.

Capacitors can still go bad when they appear OK from the outside.
I have a DMR ES10/EH55 with visible bulging caps, awaiting replacement.

You could try it with the cover removed for better cooling to see if the problem is related to that?
If the artifacts are only those few lines at the top, as shown in the clip, a simple fix is to black them out of course.
Also a few lines on the bottom to make it more even and hide the head switching.

[Lololobolosse]

Thanks for your reply, finally i think it's more random than related to heat since i just did a test rip after leaving the DMR on overnight and it's in the more usual random state where the pink lines randomly appears at the top, i think i could go for a full recap to see if the issue would go away, when i play video from the hdd or from a dvd it's not there so maybe it's isolated to the transcoding or the stabilizing part of the DMR