Commodore 1081 PAL screen jitter oddity

[AF-Domains.net]

Greetings,

Not entirely sure whether this is down to a possible fault that was fixed in a later design or not..

While using the 1081 to watch a PAL DVD (widescreen format usually), the screen will jitter intermittently vertically.

Unable to provide any photos at this time that may help describe this.

This does not surface when viewing NTSC DVDs.

This oddity does not seem to surface at all on a spare 1084s.

Anyone else encountered anything like this?

What could be a possible cause?

[AF-Domains.net]

Greetings,

I probably should've clarified there.

I'm located in the UK, 50Hz here.

[AF-Domains.net]

Although it has been a while, still haven't been able to find a possible cause as of yet.

I've however attached a photograph to display what occurs.

I apologise if my general terminology was completely off.

[AF-Domains.net]

Greetings,

I've checked the V-Hold, that appears to be set correctly.

This also tends to be intermittent.

The image is stable during certain scenes, while appearing to almost roll vertically on others.

I have a 1084S that doesn't seem to be afflicted by this, though it's currently in for repair.

[AF-Domains.net]

At the present time, the DVD player is connected to the 1081 using the Scart socket (RGB mode rather than CVBS, on the faint chance there'd be some improvement), no change to the vertical frame roll.

Regarding a video stabilizer, will attempt to get ahold of one to see if that does the job.

With any luck it does.

More or less out of ideas as to what else could be done, short of replacing the monitor entirely.

[AF-Domains.net]

Unfortunately, a video stabilizer had no noticeable effect.

Was hooked up correctly, but still the same picture jump effect on PAL depending on the scene.