Prevention of Blue Screen

[gordon]

Hi Folks, I have purchased a 12V video monitor (Wilmaxit) which works really well but keeps going to blue screen when the input signal gets too poor. Is there a simple inexpensive way of stopping this ? Thanks in anticipation.

Gordon (G3ZYL)

[Wolfie G8VAT]

There some simple circuits which simply add a small pulse to the video input in the absence of syncs that trick the monitor into thinking there are syncs present.

I haven't looked but i'm guessing they will be in the Wiki somewhere.

Or you might have a poke about with a scope to see if it can be disabled inside the monitor.

[g8vpg]

Its all in the Wiki here;
https://wiki.batc.org.uk/5.6_GHz#Video_squelch_defeat
I find the Eachine recorder works very well.
73 Shaun.

[gordon]

Thanks for your suggestions I will have a look soon.

Gordon (G3ZYL)

[g7kpm]

A cheap LCD monitor which does not display blue screen is available here:

https://www.aliexpress.com/item/3284174 ... b5d466e993

73s Jason G7KPM

[G4GHD]

Its all in the Wiki here;
https://wiki.batc.org.uk/5.6_GHz#Video_squelch_defeat
I find the Eachine recorder works very well.
73 Shaun.

I bought one of these recently, although it worked, the through video quality seem bandwidth reduced. The device's OSG were sharp but the through video wasn't. I tried to update the firmware, which resulted in bricking the device

Are there any dedicated circuits that will do the job? The Syncsmurf 5 is too expensive for such a simple purpose IMO, it's cheaper to just buy a new monitor...