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Prevention of Blue Screen
Posted: Fri Feb 15, 2019 6:41 pm
by 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)
Re: Prevention of Blue Screen
Posted: Fri Feb 15, 2019 8:09 pm
by 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.
Re: Prevention of Blue Screen
Posted: Sat Feb 16, 2019 10:59 am
by 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.
Re: Prevention of Blue Screen
Posted: Sat Feb 16, 2019 5:28 pm
by gordon
Thanks for your suggestions I will have a look soon.
Gordon (G3ZYL)
Re: Prevention of Blue Screen
Posted: Wed Jan 08, 2020 12:06 am
by g7kpm
A cheap LCD monitor which does not display blue screen is available here:
https://www.aliexpress.com/item/3284174 ... b5d466e993
73s Jason G7KPM
Re: Prevention of Blue Screen
Posted: Sat Nov 14, 2020 5:32 pm
by G4GHD
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...